diff --git a/server/sim/content/kits/index.js b/server/sim/content/kits/index.js
index 034f4936..99f513f5 100644
--- a/server/sim/content/kits/index.js
+++ b/server/sim/content/kits/index.js
@@ -100,6 +100,9 @@ export const OPERATOR_KIT_FILES = Object.freeze([
   'op-huang.js',
   'op-shwaz.js',
   'op-bgsnow.js',
+  'op-ifrit.js',
+  'op-aphris.js',
+  'op-lin.js',
 ]);
 
 /**
diff --git a/server/sim/content/kits/ops/op-aphris.js b/server/sim/content/kits/ops/op-aphris.js
new file mode 100644
index 00000000..fff4899e
--- /dev/null
+++ b/server/sim/content/kits/ops/op-aphris.js
@@ -0,0 +1,294 @@
+// server/sim/content/kits/ops/op-aphris.js — 谬因 (char_4229_aphris) 自选 operator kit: 6★ 轰击术师 (术师), an owned-6★ pick
+// of the tier-5 and tier-6 自选 slots; every skill, both talents, the trait, her module and her summon “中继器” at every form.
+// Kit contract and the 自选 rules: ../README.md ("How to add an operator (自选)").
+//
+// Forms (data/backups.json units.char_4229_aphris, the DIY slot statuses): normal = E2 Lv1, skills at rank 4, no module;
+// elite = E2 Lv60, rank 7, the picked module at stage 1 (tier 5) or 3 (tier 6). Potential 0 [ASSUMED: no account].
+// Summon: tokens.token_10070_aphris_pc “中继器” (talent 链路协议; a hand piece the player places with a facing — data
+// `placeable`, a talent summon: it deploys with the board, docs/SIM.md §1.1 token pieces).
+// Sources: character_table / skill_table / battle_equip_table (zh_CN, as built into backups.json); PRTS 谬因 (链路协议 备注:
+// her range "以自己所在格为起点向部署方向延伸，直至达到延伸距离上限" — 5 tiles from E1 —, "若延伸到了自身的中继器所在的地块，会令延伸
+// 距离上限增加（并非增加谬因的攻击距离属性）并改变接下来的延伸方向", "尝试延伸到已延伸到的地块或地图边界外时延伸会提前终止", "索敌与攻击
+// 始终采用格子判定", "攻击力增加效果不可叠加"; 取样优化 备注 "无视法抗效果为增加受益者的法术穿透属性（直接加算）"; 连续映射 备注
+// "中继器持续时间结束时不再进行自动撤退"; 临界瞬爆 备注 "技能持续期间，自身的攻击范围可无限延伸直至无法继续延伸", "持有孤立的我方干员
+// 也可令谬因攻击范围延伸效果转向"; 混沌的本质 备注 "技能开启后3秒内持有强制缴械", "“停顿时间延长”指的是增加本次攻击对该敌人施加的
+// 停顿的时间", "技能开始/结束时强制撤回所有中继器", 修正 "清空再部署"); PRTS 中继器 (备注: 无敌, 禁疗, 孤立, 阻挡数 0, 再部署策略
+// 队列); PRTS 卫戍协议/帮助 §作战阶段 ("若战场区初始部署有召唤物，若召唤物在战斗期间退场，将在满足条件后立即原地再部署1个"); the client's
+// battle data (charpack char_4229_aphris — the range selectors, the talent abilities; battle/prefabs [uc]skills skchr_aphris_1/2/3;
+// buff_template_data aphris_token_add_atk_tohost, aphris_pc_t[with-draw], aphris_sk1(_token), aphris_sk2_switch_mode4,
+// aphris_sk3 / [token-withdraw] / [on_finish], die_to_kill_token, charge_token[born]).
+// - Range (链路协议; her selectors `_extendable`, `_extendValidator` = the 中继器, `_extendLengthEveryValidateChar` 2): a path,
+//   not her data grid — from her tile along her facing, one tile at a time, up to her 5-1 length; reaching her own 中继器
+//   adds 2 to the length still allowed and turns the path to that piece's facing; it stops at a tile it already holds or at
+//   the map's edge. The path is her range (`unit.rangeGrid`, rebuilt when a piece or an operator comes or goes, at her
+//   skill's start / end, and checked every tick): her attacks, the DEFAULT trigger, 取样优化 and the detail card all read it.
+//   [ASSUMED] a huge enemy counts on every tile it covers (the engine's selection; PRTS: 格子判定 by its position), her hits
+//   land at once (the client spaces them `_hitInterval` 0.05 s along the beam) and a 攻击距离 bonus (none exists for her in
+//   this mode) would extend it as the engine extends any range.
+// - Trait (轰击术师) "攻击造成超远距离的群体法术伤害": the profession's `rangeAoe` — every selectable enemy of her path at once,
+//   air units too. Module BLA-Y “第三相态”: 部署费用 −8 (the attribute; stats 34 → 26), HP / ATK in the stats, no trait change;
+//   stage 3 changes T1 (35 s piece, 再部署时间变短 — the piece's byModule respawnTime 30 → 20 —, ATK +35 %).
+// - T1 链路协议: one 中继器 lasting the token talent's duration (25 s; BLA-Y stage 3: its hidden module talent, 35 s) from each
+//   deployment (aphris_pc_t[with-draw]: it withdraws when that time is up unless it holds aphris_sk1_token — given to every
+//   piece of hers when 连续映射 starts, and to a piece taking the field while 连续映射 or 混沌的本质 runs). Back on its tile its
+//   respawnTime (30 / 20 s) after it left, paying its 3 DP — the 卫戍 auto redeploy of a placed summon, as 斯卡蒂的海嗣 —, and
+//   only while 谬因 stands: her leaving the field withdraws it (die_to_kill_token), her (re)deployment makes it ready at once
+//   (charge_token[born]). ATK +atk while one of hers stands (aphris_token_add_atk_tohost: one buff aphris_t1[atk], "不可叠加").
+//   The piece "不会受到攻击" (data: untargetable) and holds 无敌, 禁疗 and 孤立 (PRTS 中继器; [ASSUMED] given by this kit — the
+//   data's `abnormal` lacks them).
+// - T2 取样优化 "攻击范围内的友方干员攻击时无视敌方10点法术抗性" (aphris[t2]: attribute 27, 法术穿透, on allied operators — profession
+//   mask 639 — of her attack range): resIgnoreFlat +magic_resist_penetrate_fixed on every allied operator standing on her path,
+//   her own tile included [ASSUMED: the selector does not drop its owner], refreshed every AURA_IV s; several sources keep the
+//   strongest.
+// - S1 连续映射 (AUTO, 持续时间无限): ATK +atk (aphris_sk1) and the 中继器 marks above. An AUTO skill acting on herself fires at
+//   full SP (`trigger: 'SP_FULL'`, the owner's AUTO rule, kits/README.md checklist 5); `toggle`.
+// - S2 临界瞬爆 (MANUAL, data DEFAULT, 8 s): mode 4 (aphris_sk2_switch_mode4) — her normal attack is replaced by the beam
+//   ability (`_preDelay` 0.167 = the Skill_2_Begin clip, then `_triggerDelta` 0.5; MAGICAL atk_scale): from BEAM_FIRST on,
+//   every `interval` (0.5) s, every selectable enemy on her path takes atk_scale × ATK arts (16 hits in the 8 s). The path
+//   meanwhile has no length limit (`_infinite`) and turns at her 中继器 and at every allied
+//   operator it reaches (validators: the piece, allies of profession mask 639 — every operator profession; a 孤立 one too),
+//   to that unit's facing. The data resolves DEFAULT: the unbounded range is no data range (no rangeId), so build-data's
+//   ACTIVE_RANGE rule cannot see it (reported, not hand-coded).
+// - S3 混沌的本质 (MANUAL, data DEFAULT, 20 发弹药 — `ammo`, attack@trigger_time): for charge_time (3) s from the cast 强制缴械
+//   (aphris_sk3[sheltering], abnormal flag disarmed) and aphris_sk3[token-withdraw]: every 中继器 of hers withdrawn and its
+//   redeploy time cleared (ResetTokenRespawnTime — the placed piece is back on its tile at once; the two extra pieces the
+//   skill allows have no piece to place in the auto battle [ASSUMED: N/A]); attack interval +base_attack_time (−1.1 s on
+//   2.9 s), ATK +atk, each attack attack@atk_scale × ATK on her path, and on every enemy it hits the buff aphris_sk3: 停顿
+//   origin_sluggish + extra_sluggish × n s and n hits of extra_atk_scale × ATK arts, n = the 中继器 the path passed before the
+//   enemy, at most max_times (1). It ends with its bullets; aphris_sk3[on_finish] withdraws every 中继器 and clears their
+//   redeploy time again (so the piece is back at once, now with its normal lifetime).
+
+import { num, talentBb, skillRec, up, batMod, toggleBuff } from '../shared/tier1.js';
+import { COLS } from '../../../constants.js';
+import { dirVec, toLocal } from '../../../dir.js';
+
+const S1 = 'skchr_aphris_1';
+const S2 = 'skchr_aphris_2';
+const S3 = 'skchr_aphris_3';
+/** Her summon “中继器” (talent 链路协议). */
+const RELAY = 'token_10070_aphris_pc';
+/** Extra path length per 中继器 (the selectors' `_extendLengthEveryValidateChar`; "使该次攻击距离+2"). */
+const RELAY_REACH = 2;
+/** Talent-2 aura refresh period and buff length (the non-stacking aura convention of the kits). */
+const AURA_IV = 0.25;
+const AURA_DUR = 0.4;
+/** S2 临界瞬爆: the first beam hit (skchr_aphris_2 `_preDelay`, the Skill_2_Begin clip's length), then every `interval` s. */
+const BEAM_FIRST = 0.167;
+/** How often a withdrawn 中继器 tries to come back once ready (her on the field, its tile free, DP paid). */
+const RELAY_RETRY = 0.1;
+const LINK_KEY = 'aphris:link';
+const SAMPLING_KEY = 'aphris:sampling';
+const CHARGE_KEY = 'aphris:charge';
+const RELAY_ABNORMAL_KEY = 'aphris:relayAbnormal';
+
+const bbOf = (chess, id) => skillRec(chess, id)?.bb ?? {};
+/** A 中继器 of `unit`. */
+const isRelayOf = (t, unit) => !!t && t.kind === 'token' && t.defId === RELAY && t.ownerUnit === unit;
+const relaysOf = (battle, unit) => battle.allyUnits.filter((t) => isRelayOf(t, unit));
+/** 连续映射 / 混沌的本质 running: a 中继器 taking the field now gets the no-withdraw mark (aphris_pc_t[with-draw]). */
+const marksRelays = (unit) => !!(unit.skill && unit.skill.active && (unit.skill.id === S1 || unit.skill.id === S3));
+/** Her own path length: the farthest forward tile of her data grid (5 on her E2 5-1). */
+function baseReach(unit) {
+  let n = 0;
+  for (const p of unit.def?.rangeGrid ?? []) if (Array.isArray(p) && p[0] === 0 && p[1] > n) n = p[1];
+  return n;
+}
+/** A 中继器's lifetime: the last `duration` of its talents (the BLA-Y stage-3 hidden talent after the base one). */
+function relayLife(t) {
+  let life = 0;
+  for (const x of t.def?.talents ?? []) if (x && x.bb && x.bb.duration != null) life = num(x.bb.duration, life);
+  return life;
+}
+
+/**
+ * Her 延伸 path (header): absolute tiles in order from her own, with `index` (tile key → position) and `relays` (the
+ * positions of the 中继器 tiles it passed). `beam` = S2: no length limit, every allied operator turns it too.
+ */
+function aphrisPath(battle, unit, beam = false) {
+  const tiles = [[unit.tileR, unit.tileC]];
+  const index = new Map([[unit.tileR * COLS + unit.tileC, 0]]);
+  const relays = [];
+  let [dr, dc] = dirVec(unit.dir);
+  let reach = beam ? Infinity : baseReach(unit);
+  let r = unit.tileR, c = unit.tileC, steps = 0;
+  while (steps < reach) {
+    const nr = r + dr, nc = c + dc;
+    const k = nr * COLS + nc;
+    if (!battle.grid.inBounds(nr, nc) || index.has(k)) break;
+    index.set(k, tiles.length);
+    tiles.push([nr, nc]);
+    r = nr; c = nc; steps++;
+    const o = battle.unitAt(nr, nc);
+    if (o && isRelayOf(o, unit)) {
+      reach += RELAY_REACH;
+      [dr, dc] = dirVec(o.dir);
+      relays.push(tiles.length - 1);
+    } else if (beam && o && o !== unit && o.kind === 'op' && o.side === 'ally') [dr, dc] = dirVec(o.dir);
+  }
+  return { tiles, index, relays };
+}
+
+/** Rebuild her range from the path when it changed (the relative grid of the path in her facing-RIGHT frame). */
+function refreshPath(battle, unit) {
+  if (!up(unit)) return;
+  const beam = !!(unit.skill && unit.skill.active && unit.skill.id === S2);
+  const p = aphrisPath(battle, unit, beam);
+  const sig = p.tiles.map(([r, c]) => r * COLS + c).join(',');
+  unit.mem.aphrisPath = p;
+  if (unit.mem.aphrisSig === sig) return;
+  unit.mem.aphrisSig = sig;
+  unit.rangeGrid = p.tiles.map(([r, c]) => toLocal(r - unit.tileR, c - unit.tileC, unit.dir));
+  battle.refreshRange(unit);
+}
+
+/** How many 中继器 her path passed before `e`'s tile (S3 aphris_sk3 "extendTimes"). */
+function relaysBefore(unit, e) {
+  const p = unit.mem.aphrisPath;
+  if (!p || !p.relays.length) return 0;
+  const i = p.index.get(Math.round(e.y) * COLS + Math.round(e.x));
+  return i == null ? 0 : p.relays.filter((j) => j < i).length;
+}
+
+/** Withdraw every 中继器 of hers that stands; `clear` = their redeploy time cleared (ResetTokenRespawnTime). */
+function withdrawRelays(battle, unit, clear) {
+  for (const t of relaysOf(battle, unit)) {
+    if (t.alive) {
+      t.mem.relayCleared = clear;
+      battle.retreat(t, { reason: 'expired', permanent: true });
+    } else if (clear && !t.removed) t.mem.relayReadyAt = battle.time;
+  }
+}
+
+/** A 中继器 of hers took the field: its abnormal flags and redeploy rule once, its lifetime and mark every time. */
+function relayDeployed(battle, unit, t) {
+  if (!t.mem.aphrisRelay) {
+    t.mem.aphrisRelay = true;
+    battle.addBuff(t, { key: RELAY_ABNORMAL_KEY, flags: { invulnerable: true, isolated: true, noHeal: true }, persist: true, allowDead: true });
+    // back on its tile its respawnTime after it left (at once when its redeploy time was cleared), while she stands,
+    // paying its DP — a token is otherwise removed for good: the piece is kept (`removed = false`) so its hooks survive
+    // and `battle.redeploy` accepts it
+    battle.on('death', (c) => {
+      if (c.unit !== t || battle.finished) return;
+      t.removed = false;
+      t.mem.relayReadyAt = battle.time + (t.mem.relayCleared ? 0 : Math.max(0, num(t.base.respawnTime)));
+      t.mem.relayCleared = false;
+      if (t.mem.relayRetry) return;
+      t.mem.relayRetry = battle.every(RELAY_RETRY, (b, sched) => {
+        const stop = () => { sched.cancel(); t.mem.relayRetry = null; };
+        if (t.alive || t.removed || b.finished) { stop(); return; }
+        if (!up(unit) || b.time + 1e-9 < t.mem.relayReadyAt) return;
+        if (b.redeploy(t, { free: false })) stop();
+      }, { owner: t });
+    }, { owner: t, priority: -10 });
+  }
+  t.mem.relayKept = marksRelays(unit);   // aphris_pc_t[with-draw] ON_BUFF_START: aphris_sk1_token
+  const life = relayLife(t);
+  if (!(life > 0)) return;
+  const seq = t.deploySeq;
+  battle.after(life, () => {
+    if (!t.alive || t.deploySeq !== seq || t.mem.relayKept) return; // 连续映射's mark: "不再进行自动撤退"
+    battle.retreat(t, { reason: 'expired', permanent: true });
+  }, { owner: t });
+}
+
+export default {
+  char_4229_aphris: (bb, chess) => {
+    const t0 = talentBb(chess, 0), t1 = talentBb(chess, 1);
+    const b1 = bbOf(chess, S1), b2 = bbOf(chess, S2), b3 = bbOf(chess, S3);
+    return {
+      skills: {
+        [S1]: {
+          kind: 'toggle', trigger: 'SP_FULL', mods: { atkPct: num(b1.atk) },
+          onStart({ battle, unit }) { for (const t of relaysOf(battle, unit)) if (t.alive) t.mem.relayKept = true; }, // aphris_sk1 → aphris_sk1_token
+        },
+        [S2]: {
+          kind: 'duration',
+          attack: { noAttack: true },
+          onStart({ battle, unit }) {
+            unit.mem.beamAt = 0;
+            unit.mem.beamNext = BEAM_FIRST;
+            battle.fx('beam', { x: unit.x, y: unit.y, id: unit.id, skill: 'aphris:beam' });
+          },
+          onTick({ battle, unit, skill, dt }) {
+            const iv = num(b2.interval, 0.5);
+            if (!(iv > 0)) return;
+            const t = (unit.mem.beamAt = (unit.mem.beamAt ?? 0) + dt);
+            while (t >= unit.mem.beamNext - 1e-6 && skill.active && unit.alive) {
+              unit.mem.beamNext += iv;
+              for (const e of battle.enemiesInKeys(unit.rangeKeys, unit, unit.profile)) {
+                battle.dealDamage(unit, e, { amount: unit.s.atk * num(b2.atk_scale), type: 'arts', isSkill: true, tags: ['skill', 'aphris:beam'] });
+              }
+            }
+          },
+        },
+        [S3]: {
+          kind: 'ammo', ammo: num(b3['attack@trigger_time'], 20),
+          mods: { atkPct: num(b3.atk), batPct: batMod(b3.base_attack_time, chess) },
+          attack: {
+            atkScale: num(b3['attack@atk_scale'], 1),
+            onEachHit({ battle, unit, target }) { // aphris_sk3 on every enemy the attack hits
+              if (!target || target.side !== 'enemy' || !target.alive) return;
+              const max = num(b3['attack@max_times'], 1);
+              const n = max >= 0 ? Math.min(max, relaysBefore(unit, target)) : relaysBefore(unit, target);
+              const slow = num(b3['attack@origin_sluggish']) + num(b3['attack@extra_sluggish']) * n;
+              if (slow > 0) battle.applyStatus(target, 'sluggish', { duration: slow, source: unit });
+              const ex = num(b3['attack@extra_atk_scale']);
+              for (let i = 0; i < n && target.alive && ex > 0; i++) battle.dealDamage(unit, target, { amount: unit.s.atk * ex, type: 'arts', isSkill: true, tags: ['skill', 'aphris:relay'] });
+            },
+          },
+          onStart({ battle, unit }) {
+            const ct = num(b3.charge_time);
+            if (ct > 0) battle.addBuff(unit, { key: CHARGE_KEY, duration: ct, flags: { disarm: true }, tags: ['skill'] }); // 强制缴械
+            withdrawRelays(battle, unit, true);   // aphris_sk3[token-withdraw]
+          },
+          onEnd({ battle, unit }) {
+            battle.removeBuff(unit, CHARGE_KEY);
+            withdrawRelays(battle, unit, true);   // aphris_sk3[on_finish]
+          },
+        },
+      },
+      talents: [
+        { install(battle, unit) { // 链路协议: ATK +atk while one of her 中继器 stands (one buff however many)
+          const a = num(t0.atk);
+          if (a) toggleBuff(battle, unit, LINK_KEY, () => relaysOf(battle, unit).some((t) => t.alive && t.deployed), { atkPct: a });
+          // die_to_kill_token: her pieces leave with her; charge_token[born]: her (re)deployment makes a waiting one ready
+          battle.on('death', (c) => { if (c.unit === unit) withdrawRelays(battle, unit, false); }, { owner: unit });
+          battle.on('deploy', (c) => {
+            if (c.unit !== unit) return;
+            for (const t of relaysOf(battle, unit)) if (!t.alive && !t.removed) t.mem.relayReadyAt = battle.time;
+          }, { owner: unit });
+        } },
+        { install(battle, unit) { // 取样优化: 法术穿透 +v on the allied operators of her path
+          const v = num(t1.magic_resist_penetrate_fixed);
+          if (!(v > 0)) return;
+          battle.every(AURA_IV, () => {
+            if (!up(unit) || !unit.rangeKeySet) return;
+            for (const a of battle.alliesFor(unit)) {
+              if (a.kind !== 'op' || !unit.rangeKeySet.has(a.tileR * COLS + a.tileC)) continue;
+              const cur = a.findBuff(SAMPLING_KEY);
+              if (cur && cur.source !== unit && (cur.data?.v ?? 0) > v && cur.timeLeft > 0.05) continue;
+              battle.addBuff(a, { key: SAMPLING_KEY, duration: AURA_DUR, mods: { resIgnoreFlat: v }, source: unit, data: { v }, tags: ['aura'] });
+            }
+          }, { owner: unit, immediate: true });
+        } },
+      ],
+      install(battle, unit) {
+        // the 延伸 path: rebuilt on any ally's arrival / departure (her 中继器, an operator S2 bends on), her skill's
+        // start / end, and checked every tick
+        battle.on('deploy', (c) => {
+          const t = c.unit;
+          if (t === unit) unit.mem.aphrisSig = null;
+          else if (isRelayOf(t, unit)) relayDeployed(battle, unit, t);
+          if (t && t.side === 'ally') refreshPath(battle, unit);
+        }, { owner: unit });
+        battle.on('death', (c) => { if (c.unit && c.unit.side === 'ally' && c.unit !== unit) refreshPath(battle, unit); }, { owner: unit });
+        battle.on('skillStart', (c) => { if (c.unit === unit) refreshPath(battle, unit); }, { owner: unit });
+        battle.on('skillEnd', (c) => { if (c.unit === unit) refreshPath(battle, unit); }, { owner: unit });
+        battle.on('tick', () => refreshPath(battle, unit), { owner: unit });
+        // S3's 强制缴械 from the cast on: the attack loop goes on to the attack the cast was made for (ai.js updateAlly
+        // checks `disarm` before the cast only) — no target, no attack, no bullet spent
+        battle.on('beforeAttack', (c) => { if (c.attacker === unit && unit.findBuff(CHARGE_KEY)) c.targets = []; }, { owner: unit });
+      },
+    };
+  },
+};
diff --git a/server/sim/content/kits/ops/op-ifrit.js b/server/sim/content/kits/ops/op-ifrit.js
new file mode 100644
index 00000000..0b5e34c0
--- /dev/null
+++ b/server/sim/content/kits/ops/op-ifrit.js
@@ -0,0 +1,215 @@
+// server/sim/content/kits/ops/op-ifrit.js — 伊芙利特 (char_134_ifrit) 自选 operator kit: 6★ 轰击术师 (术师), an owned-6★ pick
+// of the tier-5 and tier-6 自选 slots; every skill, both talents, the trait and both modules at every form.
+// Kit contract and the 自选 rules: ../README.md ("How to add an operator (自选)").
+//
+// Forms (data/backups.json units.char_134_ifrit, the DIY slot statuses): normal = E2 Lv1, skills at rank 4, no module;
+// elite = E2 Lv60, rank 7, the picked module at stage 1 (tier 5) or 3 (tier 6). Potential 0 [ASSUMED: no account].
+// Sources: character_table / skill_table / battle_equip_table (zh_CN, as built into backups.json); PRTS 伊芙利特 (炎爆 备注
+// "灼伤：目标每秒受到伊芙利特当前攻击力33%的法术持续伤害，伊芙利特离场后也会生效" and "<模组相关>于伊芙利特在场时受模组基础效果影响";
+// 灼地 备注 "属于维持技能状态，时间模式为跟随动画", "降低法术抗性的效果持续1秒"; 精神融解 备注 "<Δ模组>造成的元素伤害为持续伤害";
+// “同熔” 特性 "目标距离自身0格或以上时应用加成，按距离线性提升，目标距离自身4格或以上时达到最大值"); PRTS 游戏数据基础 §维持技能状态;
+// PRTS 分支特性信息 轰击术师 ("可对空", "普通攻击同时攻击范围内的所有敌人"); the client's battle data (battle/prefabs [uc]skills
+// skchr_ifrit_1/2/3, [uc]equips ifrit_equip_*, charpack char_134_ifrit, buff_template_data: burn, atk_scale_by_distance,
+// periodic_damage_by_hp_ratio[skip_modifier_fix], ifrit_e_002[sp] / [dice_sp], ifrit_e_003_tr, ifrit_e_003_ele) and her
+// battle skeleton (Skill_2_Begin's OnAttack event).
+// - Trait (轰击术师) "攻击造成超远距离的群体法术伤害": the profession's `rangeAoe` — every selectable enemy of her 5-1 line at
+//   once, air units too, the same damage near and far (professions.js blastcaster).
+// - Module BLA-X “同熔” (trait min_dist 0 / max_dist 4 / damage_scale 0.1): "距离越远伤害越高，最高达到110%" — ×(1 + 0.1 ×
+//   clamp((d − 0) / (4 − 0), 0, 1)) by the Euclidean distance d between her and the target, on EVERY damage she outputs
+//   while on the field (the module's buff atk_scale_by_distance: ON_OUTPUT_DAMAGE, no damage mask) — her attacks, the 灼地
+//   ticks and the 炎爆 灼伤 (PRTS: "于伊芙利特在场时受模组基础效果影响"). Stage 3 also changes T2 (below).
+// - Module BLA-D “热成形记忆” (trait ep_damage_ratio 0.08): "造成法术伤害时附带相当于8%伤害的灼燃损伤" (ifrit_e_003_tr: ON_AFTER_
+//   OUTPUT_DAMAGE, every MAGICAL damage of hers) — 8 % of the HP damage dealt as 灼燃损伤 (`type: 'element'`, docs/SIM.md §7.2
+//   element conventions), the 灼伤 too while she stands. Stage 3 also changes T1 (below).
+// - T1 精神融解 "攻击范围内的敌军法术抗性-40%" (magic_resistance −0.4: a ratio; charpack ifrit_t_1, removed when the enemy leaves):
+//   RES ×0.6 on every enemy on her range, refreshed every AURA_IV s; several 伊芙利特 keep one (applyStrongest — the mode's
+//   "同名效果取最高" convention; [ASSUMED] the client's independentCharacterSource flag would let two stack, which a lone
+//   base-game 伊芙利特 never shows). BLA-D stage 2+ "若攻击目标处于灼燃损伤爆发期间，攻击对其额外造成相当于攻击力50%的元素伤害" (the
+//   module's hidden talent element_atk_scale; ifrit_e_003_ele: IsTargetInEPBreakRecovery FIRE ⇒ ELEMENT damage, attack type
+//   BUFF, 持续伤害): every hit of her attack abilities — normal attacks and the 灼地 ticks (the equip adds it to the abilities of
+//   `_targetFamilyMask` 31, [ASSUMED] every family: 1 / 3 mark the narrower equips) — on an enemy in its 灼燃 burst (its
+//   `burnBurst` lock) adds 50 % ATK 元素伤害
+//   (`type: 'elemental'`), tagged 'dot' (PRTS: "<Δ模组>造成的元素伤害为持续伤害"); never the 灼伤 (a buff's damage).
+// - T2 莱茵回路 "每6秒额外回复2点技力" (periodic_sp; BLA-X stage 2+ ifrit_e_002[sp]): +sp SP every `interval` s of a deployment
+//   (the first one interval in: waitFirstTriggerInterval; a gift during a running 狂热 / 灼地 is lost — no SP during a
+//   skill). BLA-X stage 2+ "有30%概率额外回复5点技力" (ifrit_e_002[dice_sp] prob / interval / sp): one roll per its own interval.
+// - S1 狂热 (MANUAL, data DEFAULT, 20 s): ATK +atk, ASPD +attack_speed.
+// - S2 炎爆 (AUTO, 可充能 2 / 3 次, data DEFAULT — the "next attack" waits for her attack): the next attack hits her whole line
+//   (ground and air: its selector's targetMotion ALL) for atk_scale × ATK; every enemy it hits gets the buff ifrit_s_2
+//   (template burn): DEF +def (−100 / −200, "同名效果取最高") for `duration` (3.01) s and the 灼伤 — burn.atk_scale (33 %) × her
+//   CURRENT ATK arts every second of it (triggerInterval 1, the first a second in: 3 ticks), a 持续伤害 (no dodge) that keeps
+//   ticking after she leaves the field. A new 炎爆 on the same enemy restarts both.
+// - S3 灼地 (MANUAL, data DEFAULT, 20 s): a 维持技能状态 — no normal attack. The ability (skchr_ifrit_3: `_triggerDelta` 1,
+//   ground-only selector) strikes first at the attack event of its Begin clip (SCORCH_FIRST: 0.4 s; facing UP / DOWN the
+//   back / down clips, 0.333 s) and then every S3_CADENCE (1) s — a fixed cadence no ASPD change touches: every ground enemy
+//   on her range takes atk_scale × ATK arts and the active buff ifrit_s_3, RES +magic_resistance (−7 / −10, flat) for 1 s
+//   (PRTS 备注) — the cut before the damage [ASSUMED order], so the tick it comes with counts it. Her own periodic_damage_by_
+//   hp_ratio buff takes hp_ratio (2 %) of her max HP every second of the skill (the first a second in; a 流失 — it ignores
+//   for SP and skips the damage events —, it can knock her out; PRTS "实际的生命流失量略低于标注值" gives no number [ASSUMED:
+//   the stated 2 %]). 晕眩 / 冻结 (any state that stops her acting) ends it at once (PRTS 维持技能状态).
+
+import { num, talentBb, moduleBb, traitBb, skillRec, up, giveSp } from '../shared/tier1.js';
+import { bodyInKeys } from '../../../body.js';
+import { hasHp } from '../../../damage.js';
+
+const S1 = 'skchr_ifrit_1';
+const S2 = 'skchr_ifrit_2';
+const S3 = 'skchr_ifrit_3';
+/** T1 aura refresh period and buff length (the non-stacking aura convention of the kits). */
+const AURA_IV = 0.25;
+const AURA_DUR = 0.4;
+/** S3 灼地: the ability's `_triggerDelta` (s) — one damage tick per second, "每秒". */
+const S3_CADENCE = 1;
+/** S3 灼地: the first tick at the OnAttack event of Skill_2_Begin (front 0.4 s; the back clip and Skill_Down_2_Begin 0.333 s). */
+const SCORCH_FIRST = Object.freeze({ side: 0.4, vertical: 0.333 });
+/** S3 灼地 RES cut length (ifrit_s_3 lifeTime 1; PRTS 备注 "降低法术抗性的效果持续1秒"). */
+const S3_RES_TIME = 1;
+/** S3 灼地 self 流失 period (periodic_damage_by_hp_ratio triggerInterval 1). */
+const S3_LOSS_IV = 1;
+const MELT_KEY = 'ifrit:meltdown';
+const S2_DEF_KEY = 'ifrit:pyroDef';
+const S2_BURN_KEY = 'ifrit:pyroBurn';
+const S3_RES_KEY = 'ifrit:scorchRes';
+const SCORCH_TAG = 'ifrit:scorch';
+
+const bbOf = (chess, id) => skillRec(chess, id)?.bb ?? {};
+/** RES cut mods for a blackboard magic_resistance value (applyStrongest): |v| < 1 = ×(1 + v), else flat v. */
+const resCut = (v) => (Math.abs(v) < 1 ? { resMul: Math.max(0, 1 + v) } : { resFlat: v });
+const defCut = (v) => ({ defFlat: v });
+
+/** S2 炎爆 on one enemy its attack hit: DEF cut and the 灼伤 for `duration` s. */
+function pyroclasm(battle, unit, e, b2) {
+  if (!e || !e.alive || e.side !== 'enemy') return;
+  const dur = num(b2.duration, 3);
+  const d = num(b2.def);
+  if (d) battle.applyStrongest(e, S2_DEF_KEY, { duration: dur, value: d, mods: defCut, source: unit });
+  const sc = num(b2['burn.atk_scale']);
+  if (!(sc > 0)) return;
+  battle.addBuff(e, {
+    key: S2_BURN_KEY, duration: dur, interval: 1, source: unit, tags: ['dot'],
+    // "伊芙利特当前攻击力": her ATK at each tick; it ticks on after she leaves the field (PRTS 备注)
+    onTick: ({ battle: b, unit: tgt }) => b.dealDamage(unit, tgt, { amount: unit.s.atk * sc, type: 'arts', isSkill: true, canDodge: false, tags: ['dot', 'skill', 'ifrit:burn'] }),
+  });
+}
+
+/** S3 灼地 tick: every ground enemy on her range — the RES cut, then the damage. */
+function scorch(battle, unit, b3) {
+  const scale = num(b3.atk_scale), mr = num(b3.magic_resistance);
+  const victims = battle.enemiesInKeys(unit.rangeKeys, unit, { canHitFly: false });
+  for (const e of victims) {
+    if (mr) battle.applyStrongest(e, S3_RES_KEY, { duration: S3_RES_TIME, value: mr, mods: resCut, source: unit });
+    if (e.alive && scale > 0) battle.dealDamage(unit, e, { amount: unit.s.atk * scale, type: 'arts', isSkill: true, tags: ['skill', SCORCH_TAG] });
+  }
+  battle.fx('flame', { x: unit.x, y: unit.y, id: unit.id, n: victims.length, skill: SCORCH_TAG });
+}
+
+export default {
+  char_134_ifrit: (bb, chess) => {
+    const t0 = talentBb(chess, 0), t1 = talentBb(chess, 1);
+    const hidden = moduleBb(chess);   // BLA-D stage 2+: element_atk_scale
+    const tb = traitBb(chess);        // BLA-X: min_dist / max_dist / damage_scale; BLA-D: ep_damage_ratio
+    const b1 = bbOf(chess, S1), b2 = bbOf(chess, S2), b3 = bbOf(chess, S3);
+    const s2 = skillRec(chess, S2);
+    return {
+      skills: {
+        [S1]: { kind: 'duration', mods: { atkPct: num(b1.atk), aspd: num(b1.attack_speed) } },
+        [S2]: {
+          kind: num(s2?.maxChargeTime, 1) > 1 ? 'charges' : 'instant',
+          attack: {
+            atkScale: num(b2.atk_scale, 1),
+            onEachHit({ battle, unit, target }) { pyroclasm(battle, unit, target, b2); },
+          },
+          onStart({ battle, unit }) { battle.fx('aoe', { x: unit.x, y: unit.y, radius: 0.5, id: unit.id, skill: 'ifrit:pyroclasm' }); },
+        },
+        [S3]: {
+          kind: 'duration',
+          attack: { noAttack: true },
+          onStart({ unit }) {
+            unit.mem.scorchAt = 0;
+            unit.mem.scorchNext = unit.dir === 'UP' || unit.dir === 'DOWN' ? SCORCH_FIRST.vertical : SCORCH_FIRST.side;
+            unit.mem.scorchLoss = 0;
+          },
+          onTick({ battle, unit, skill, dt }) {
+            // 维持技能状态: a hard control (晕眩 / 冻结 / 浮空 / 睡眠 — the unit cannot act) ends it at once
+            if (!unit.canAct) { skill.end('interrupted'); return; }
+            const t = (unit.mem.scorchAt = (unit.mem.scorchAt ?? 0) + dt);
+            while (t >= unit.mem.scorchNext - 1e-6 && unit.alive && skill.active) {
+              unit.mem.scorchNext += S3_CADENCE;
+              scorch(battle, unit, b3);
+            }
+            const ratio = num(b3.hp_ratio);
+            while (ratio > 0 && t >= (unit.mem.scorchLoss + 1) * S3_LOSS_IV - 1e-6 && unit.alive) {
+              unit.mem.scorchLoss++;
+              battle.loseHp(unit, unit.s.maxHp * ratio, { source: unit, tags: ['skill', SCORCH_TAG] });
+            }
+          },
+        },
+      },
+      talents: [
+        { install(battle, unit) { // 精神融解: RES −40 % on her range; BLA-D stage 2+: +50 % ATK 元素伤害 on a bursting target
+          const v = num(t0.magic_resistance);
+          if (v) {
+            battle.every(AURA_IV, () => {
+              if (!up(unit) || !unit.rangeKeySet) return;
+              for (const e of battle.enemies) {
+                if (!e.alive || e.hidden || !bodyInKeys(e, unit.rangeKeySet)) continue;
+                battle.applyStrongest(e, MELT_KEY, { duration: AURA_DUR, value: v, mods: resCut, source: unit });
+              }
+            }, { owner: unit, immediate: true });
+          }
+          const ex = num(hidden.element_atk_scale);
+          if (ex > 0) {
+            battle.on('damaged', (c) => {
+              const e = c.target, d = c.dmg;
+              if (c.source !== unit || !d || !(d.isAttack || d.tags?.includes(SCORCH_TAG)) || !e || e.side !== 'enemy' || !hasHp(e) || !e.findBuff('burnBurst')) return;
+              battle.dealDamage(unit, e, { amount: unit.s.atk * ex, type: 'elemental', element: 'burn', canDodge: false, tags: ['dot', 'module', 'ifrit:meltdown'] });
+            }, { owner: unit });
+          }
+        } },
+        { install(battle, unit) { // 莱茵回路: +sp SP every interval s; BLA-X stage 2+: prob to +5 SP more
+          const sp = num(t1.sp), iv = num(t1.interval, 6);
+          const dProb = num(t1['ifrit_e_002[dice_sp].prob']), dSp = num(t1['ifrit_e_002[dice_sp].sp']);
+          const dIv = num(t1['ifrit_e_002[dice_sp].interval'], iv);
+          if (!(sp > 0 && iv > 0) && !(dProb > 0 && dSp > 0 && dIv > 0)) return;
+          battle.on('deploy', (c) => { if (c.unit === unit) { unit.mem.rhineAcc = 0; unit.mem.rhineDice = 0; } }, { owner: unit });
+          battle.on('tick', ({ dt }) => {
+            if (!up(unit)) return;
+            if (sp > 0 && iv > 0) {
+              unit.mem.rhineAcc = (unit.mem.rhineAcc ?? 0) + dt;
+              while (unit.mem.rhineAcc >= iv - 1e-6) { unit.mem.rhineAcc -= iv; giveSp(unit, sp); }
+            }
+            if (dProb > 0 && dSp > 0 && dIv > 0) {
+              unit.mem.rhineDice = (unit.mem.rhineDice ?? 0) + dt;
+              while (unit.mem.rhineDice >= dIv - 1e-6) {
+                unit.mem.rhineDice -= dIv;
+                if (battle.rng.chance(dProb)) giveSp(unit, dSp);
+              }
+            }
+          }, { owner: unit });
+        } },
+      ],
+      install(battle, unit) {
+        // BLA-X “同熔”: farther targets take more of every damage she outputs (up to ×1 + damage_scale at max_dist tiles)
+        const ds = num(tb.damage_scale);
+        if (ds > 0 && tb.max_dist != null) {
+          const lo = num(tb.min_dist), hi = num(tb.max_dist, 4);
+          battle.on('hit', (c) => {
+            const e = c.target;
+            if (c.source !== unit || !e || e.side !== 'enemy' || c.dmg.type === 'element' || !up(unit)) return;
+            const d = Math.hypot(e.x - unit.x, e.y - unit.y);
+            c.dmg.mul *= 1 + ds * (hi > lo ? Math.max(0, Math.min(1, (d - lo) / (hi - lo))) : 1);
+          }, { owner: unit });
+        }
+        // BLA-D “热成形记忆”: 8 % of each arts damage she deals as 灼燃损伤
+        const ep = num(tb.ep_damage_ratio);
+        if (ep > 0) {
+          battle.on('damaged', (c) => {
+            const e = c.target;
+            if (c.source !== unit || c.type !== 'arts' || !(c.amount > 0) || !e || e.side !== 'enemy' || !hasHp(e) || !up(unit)) return;
+            battle.dealDamage(unit, e, { type: 'element', element: 'burn', amount: c.amount * ep, tags: ['module', 'ifrit:thermal'] });
+          }, { owner: unit });
+        }
+      },
+    };
+  },
+};
diff --git a/server/sim/content/kits/ops/op-lin.js b/server/sim/content/kits/ops/op-lin.js
new file mode 100644
index 00000000..d072884c
--- /dev/null
+++ b/server/sim/content/kits/ops/op-lin.js
@@ -0,0 +1,228 @@
+// server/sim/content/kits/ops/op-lin.js — 林 (char_4080_lin) 自选 operator kit: 6★ 阵法术师 (术师), an owned-6★ pick of the
+// tier-5 and tier-6 自选 slots; every skill, both talents, the trait and both modules at every form.
+// Kit contract and the 自选 rules: ../README.md ("How to add an operator (自选)").
+//
+// Forms (data/backups.json units.char_4080_lin, the DIY slot statuses): normal = E2 Lv1, skills at rank 4, no module;
+// elite = E2 Lv60, rank 7, the picked module at stage 1 (tier 5) or 3 (tier 6). Potential 0 [ASSUMED: no account].
+// Sources: character_table / skill_table / battle_equip_table (zh_CN, as built into backups.json); PRTS 林 (计出万全 备注:
+// "通常情况下琉璃璧生效优先级为+1000", "琉璃璧破碎效果于满足条件的伤害应用前瞬间触发" — so a lethal hit still sets it off —,
+// "其破碎时的影响范围以持有该效果的单位为中心，与林的当前攻击范围一致，先造成晕眩后造成伤害", "可造成琉璃璧破碎的伤害结算时，伤害量减少
+// 相当于琉璃璧吸收伤害上限的数值"; 玲珑 备注 "非初始状态下…技能开启时的效果均会生效，但此状态下并不实际属于“技能期间”"; 荫庇 备注
+// "每个干员单独获得琉璃壁，单独计算琉璃壁破碎与恢复时间", "伤害计算使用林的攻击力，伤害来源为林自身"; 流光乍裂 备注 "第一天赋生效的
+// 优先级从+1000变为±0，琉璃璧破碎效果于满足条件的伤害应用后瞬间触发", "仅自身普通攻击造成击杀时可触发琉璃璧破碎/生成效果，单次普攻
+// 最多触发1次效果"); PRTS 卫戍协议/帮助 §技能操作 ("携带状态切换类技能的干员…每次部署后仅开启一次技能"; 阵法术师 row "在初始攻击范围内
+// 存在敌人时释放技能"; 林【流光乍裂】 x-2 "在自定义范围内存在敌人时释放技能"); PRTS 分支特性信息 阵法术师 ("攻击时可对空"); the client's
+// battle data (charpack char_4080_lin, battle/prefabs [uc]skills skchr_lin_1/2/3, buff_template_data lin_t_1 / lin_t_1[damage]
+// / lin_t_1_s_3 / lin_t_1_s_3[refresh] / lin_t_2 / lin_e_002[half_attribute] / lin_e_002_trait).
+// - Trait (阵法术师) "通常时不攻击且防御力和法术抗性大幅度提升，技能开启时攻击造成群体法术伤害": the profession (professions.js
+//   phalanx — DEF +def ×, RES +magic_resistance while no skill runs; while one runs, `rangeAoe`: every selectable enemy of
+//   her range at once, air units too). Module PLX-X “七窍玲珑” overrides it with "更大幅度提升" (def 2.15 / magic_resistance
+//   25, the profession's trait tunables) and "技能开启时保留部分效果" (lin_e_002[buff] def 1 / magic_resistance 10): DEF +100 %
+//   and RES +10 while any skill runs — 玲珑's switched state too (PRTS: "技能开启时的效果均会生效"). Module PLX-Y “情与义”:
+//   "范围内敌人越多造成的伤害越高（最高提升15%）" — the hidden module talent: +damage_scale (3 %) per enemy on her range, at most
+//   max_valid_stack_cnt (5), on every damage she deals (the 琉璃璧 bursts too), counted like 卡涅利安's PLX-Y (every living
+//   enemy standing on her current range).
+// - T1 计出万全 (lin_t_1, HIGH_PRIORITY: ON_TAKE_DAMAGE → BlockDamage of a fixed `value`, a break when the damage left it
+//   negative): a 琉璃璧 on her from every deployment — an HP shield of `value` (200) that every damage instance refills
+//   (`absorbShields` absorbs it after DEF / RES and the damage multipliers): a hit of at most 200 is absorbed whole; a hit
+//   over 200 ("单次超过200点伤害") goes through less 200 (PRTS: "伤害量减少相当于琉璃璧吸收伤害上限的数值") and breaks it — the
+//   burst (lin_t_1[damage] on the targets of Lin's "Attack" selector, i.e. her CURRENT attack range, centred on the holder):
+//   stun `stun` s on every enemy there, then atk_scale × Lin's ATK arts (source Lin) — and lin_t_1[disable] brings it back
+//   `interval` s later (8 s; PLX-Y stage 3: 110 %, 6 s). A 流失 or an element 损伤 never touches it. [ASSUMED] the shield sits
+//   in the buff order (HIGH_PRIORITY puts it first; no other shield usually stands on her), and the burst comes right after
+//   the hit has landed — before a knock-out, as PRTS's lethal-hit note says — in the 流光乍裂 order too (PRTS: "伤害应用后").
+// - T2 韬光 "受到攻击时，有50%几率回复1点技力" (PLX-X stage 3: 75 %, 2 SP): the client's lin_t_2 (ON_TAKE_DAMAGE → IsIgnoreForSp →
+//   Dice prob → ModifySp sp, no damage-value filter): one roll per damage instance she takes that could give 受击回复 SP — a
+//   hit the 琉璃璧 absorbs whole included (it is still taken, at 0); not a 流失 or an element 损伤. No SP while a skill runs
+//   (玲珑's state included: it stays on).
+// - S1 玲珑 (MANUAL, data SEARCH, a 状态切换类 skill: switched on once per deployment and kept — the official rule, `toggle`):
+//   attack interval +base_attack_time (+1.0 s on her 2.0 s), ATK +atk, every enemy each attack hits 停顿 attack@sluggish s.
+//   PRTS's "并不实际属于技能期间" changes nothing here: the state is never switched back in the auto battle.
+// - S2 荫庇 (MANUAL, data SEARCH, 25 s): ASPD +attack_speed, taunt +taunt_level (−1: "自身不容易受到敌人攻击"); every allied
+//   unit on her range (the client's validator: ground allies — every ally of this mode but the 孤立 “炎佑”, which no ally
+//   ability selects) gets its own lin_t_1 — the plain T1 (threshold `value`, Lin's ATK and source, its own break and
+//   `interval` regrowth; independentCharacterSource, not on Lin herself) — while the skill runs (removed when the ability
+//   detaches), checked every SHELTER_IV s; an ally that leaves the field loses it (its buffs go).
+// - S3 流光乍裂 (MANUAL, data CUSTOM_RANGE on its x-2, 26 / 28 s): ATK +atk; range x-2 (the burst range follows: it is her
+//   current range: lin_t_1_s_3_selector); her own 琉璃璧 threshold ×talent_scale (2 / 2.5) while it runs (lin_t_1_s_3);
+//   each kill by her "Attack" ability (ON_TARGET_KILLED, one per attack) runs lin_t_1_s_3[refresh]: a standing 琉璃璧 bursts
+//   and stays, a broken one comes back at once. The auto battle never switches it off early.
+
+import { num, talentBb, moduleBb, traitBb, skillRec, up, giveSp, batMod } from '../shared/tier1.js';
+import { COLS } from '../../../constants.js';
+import { absoluteRangeKeys } from '../../../targeting.js';
+import { bodyInKeys } from '../../../body.js';
+import { isHpLoss } from '../../../damage.js';
+
+const S1 = 'skchr_lin_1';
+const S2 = 'skchr_lin_2';
+const S3 = 'skchr_lin_3';
+/** The 琉璃璧 shield buff (one per holder: Lin's own, and the S2 copies on her allies). */
+const GLASS_KEY = 'lin:glass';
+/** PLX-X: the part of the trait kept while a skill runs. */
+const KEEP_KEY = 'lin:plxKeep';
+/** S2 荫庇: how often the allies on her range are checked for a 琉璃璧. */
+const SHELTER_IV = 0.1;
+
+const bbOf = (chess, id) => skillRec(chess, id)?.bb ?? {};
+const s3On = (lin) => !!(lin.skill && lin.skill.active && lin.skill.id === S3);
+
+export default {
+  char_4080_lin: (bb, chess) => {
+    const t0 = talentBb(chess, 0), t1 = talentBb(chess, 1);
+    const hidden = moduleBb(chess);   // PLX-Y: damage_scale per enemy, max_valid_stack_cnt
+    const tb = traitBb(chess);        // PLX-X: lin_e_002[buff] def / magic_resistance
+    const b1 = bbOf(chess, S1), b2 = bbOf(chess, S2), b3 = bbOf(chess, S3);
+    const g3 = skillRec(chess, S3)?.rangeGrid ?? null;
+    const glass = { value: num(t0.value, 200), atkScale: num(t0.atk_scale, 1), stun: num(t0.stun, 1), interval: num(t0.interval, 8) };
+    const s3Scale = num(b3.talent_scale, 1);
+
+    /** Threshold (= shield) of a holder's 琉璃璧: Lin's own ×talent_scale while 流光乍裂 runs, the plain value otherwise. */
+    const thresholdOf = (lin, holder) => (holder === lin && s3On(lin) ? glass.value * s3Scale : glass.value);
+    /** (Re)raise the 琉璃璧 of `holder`, full. `mods: {}` keeps the buff when an instance drains it exactly (absorbShields). */
+    const raise = (battle, lin, holder) => {
+      if (!holder.alive) return;
+      const r = holder.mem.linGlassRegen;
+      if (r) { r.cancel(); holder.mem.linGlassRegen = null; }
+      battle.addBuff(holder, { key: GLASS_KEY, shield: thresholdOf(lin, holder), mods: {}, source: lin, tags: ['talent'] });
+      battle.fx('shield', { x: holder.x, y: holder.y, id: holder.id, skill: 'lin:glass' });
+    };
+    /** The break: Lin's current attack range centred on the holder — stun first, then the damage (PRTS 备注). */
+    const burst = (battle, lin, holder) => {
+      const grid = lin.liveRangeGrid || lin.rangeGrid || [[0, 0]];
+      const keys = absoluteRangeKeys(grid, holder.tileR, holder.tileC, lin.dir, 0);
+      const victims = battle.enemiesInKeys(keys, lin, { canHitFly: true });
+      if (glass.stun > 0) for (const e of victims) battle.applyStatus(e, 'stun', { duration: glass.stun, source: lin });
+      for (const e of victims) {
+        if (e.alive && glass.atkScale > 0) battle.dealDamage(lin, e, { amount: lin.s.atk * glass.atkScale, type: 'arts', tags: ['talent', 'lin:glass'] });
+      }
+      battle.fx('aoe', { x: holder.x, y: holder.y, radius: 1.5, id: lin.id, skill: 'lin:glass' });
+    };
+    /** Break `holder`'s 琉璃璧; it grows back `interval` s later (an S2 copy only while 荫庇 still covers it), or at once. */
+    const shatter = (battle, lin, holder, now = false) => {
+      battle.removeBuff(holder, GLASS_KEY);
+      burst(battle, lin, holder);
+      if (now) { raise(battle, lin, holder); return; }
+      const seq = holder.deploySeq;
+      holder.mem.linGlassRegen = battle.after(glass.interval, () => {
+        holder.mem.linGlassRegen = null;
+        if (!holder.alive || holder.deploySeq !== seq || holder.findBuff(GLASS_KEY)) return;
+        if (holder !== lin && !lin.mem.shelter?.has(holder.id)) return;
+        raise(battle, lin, holder);
+      }, { owner: lin });
+    };
+    /** Drop an S2 copy (the ally left her range, or 荫庇 ended). */
+    const dropCopy = (battle, holder) => {
+      const g = holder.findBuff(GLASS_KEY);
+      if (g) battle.removeBuff(holder, g);
+      const r = holder.mem.linGlassRegen;
+      if (r) { r.cancel(); holder.mem.linGlassRegen = null; }
+    };
+    /** S2: the allied units (not Lin, not devices) on her range get / keep / lose their 琉璃璧. */
+    const shelterTick = (battle, lin) => {
+      const st = lin.mem.shelter;
+      if (!st || !lin.rangeKeySet) return;
+      const now = new Set();
+      for (const a of battle.alliesFor(lin)) {
+        if (a === lin || a.kind === 'device' || !lin.rangeKeySet.has(a.tileR * COLS + a.tileC)) continue;
+        now.add(a.id);
+        if (!st.has(a.id)) { st.add(a.id); raise(battle, lin, a); }
+      }
+      for (const id of [...st]) {
+        if (now.has(id)) continue;
+        st.delete(id);
+        const a = battle.unitById(id);
+        if (a) dropCopy(battle, a);
+      }
+    };
+    const endShelter = (battle, lin) => {
+      const st = lin.mem.shelter;
+      lin.mem.shelter = null;
+      for (const id of st || []) { const a = battle.unitById(id); if (a) dropCopy(battle, a); }
+    };
+
+    return {
+      skills: {
+        [S1]: {
+          kind: 'toggle',
+          mods: { atkPct: num(b1.atk), batPct: batMod(b1.base_attack_time, chess) },
+          attack: { onHitStatus: { key: 'sluggish', duration: num(b1['attack@sluggish']) } },
+        },
+        [S2]: {
+          kind: 'duration',
+          mods: { aspd: num(b2.attack_speed), taunt: num(b2.taunt_level) },
+          onStart({ battle, unit }) { unit.mem.shelter = new Set(); shelterTick(battle, unit); },
+          onTick({ battle, unit, dt }) {
+            unit.mem.shelterAcc = (unit.mem.shelterAcc ?? 0) + dt;
+            if (unit.mem.shelterAcc + 1e-9 < SHELTER_IV) return;
+            unit.mem.shelterAcc = 0;
+            shelterTick(battle, unit);
+          },
+          onEnd({ battle, unit }) { unit.mem.shelterAcc = 0; endShelter(battle, unit); },
+        },
+        [S3]: {
+          kind: 'duration',
+          mods: { atkPct: num(b3.atk) },
+          targeting: g3 ? { rangeGrid: g3 } : undefined,
+          onStart({ battle, unit }) { // the threshold ×talent_scale: a standing 琉璃璧 grows to it
+            const g = unit.findBuff(GLASS_KEY);
+            if (g) { g.shield = thresholdOf(unit, unit); unit.markDirty(); }
+            battle.fx('aoe', { x: unit.x, y: unit.y, radius: 2, id: unit.id, skill: 'lin:s3' });
+          },
+          onAttack({ battle, unit, targets }) { // a knock-out by this attack: break and raise again, once per attack
+            if (!(targets || []).some((t) => t && t.side === 'enemy' && !t.alive)) return;
+            if (unit.findBuff(GLASS_KEY)) shatter(battle, unit, unit, true);
+            else raise(battle, unit, unit);
+          },
+        },
+      },
+      talents: [
+        { install(battle, unit) { // 计出万全: her 琉璃璧 (and the S2 copies — the same hook: any holder of one she gave)
+          battle.on('deploy', (c) => { if (c.unit === unit) raise(battle, unit, unit); }, { owner: unit });
+          battle.on('damaged', (c) => {
+            const h = c.target;
+            const g = h && h.findBuff(GLASS_KEY);
+            if (!g || g.source !== unit || c.type === 'element' || isHpLoss(c.dmg)) return;
+            if (g.shield > 1e-9 || !(c.amount > 0)) { // absorbed whole: full again for the next instance
+              g.shield = thresholdOf(unit, h);
+              h.markDirty();
+              return;
+            }
+            if (h === unit || unit.alive) shatter(battle, unit, h);
+          }, { owner: unit, priority: 50 });
+          battle.on('skillEnd', (c) => { // 流光乍裂 over: a standing 琉璃璧 shrinks to the plain threshold
+            if (c.unit !== unit || c.skill.id !== S3) return;
+            const g = unit.findBuff(GLASS_KEY);
+            if (g) { g.shield = thresholdOf(unit, unit); unit.markDirty(); }
+          }, { owner: unit });
+        } },
+        { install(battle, unit) { // 韬光: prob to +sp SP per damage instance taken (absorbed or not) that could give 受击回复 SP
+          const p = num(t1.prob), sp = num(t1.sp);
+          if (!(p > 0 && sp > 0)) return;
+          battle.on('damaged', (c) => {
+            if (c.target !== unit || !c.dmg || c.dmg.noSp || c.type === 'element' || isHpLoss(c.dmg) || !up(unit)) return;
+            if (battle.rng.chance(p)) giveSp(unit, sp);
+          }, { owner: unit });
+        } },
+      ],
+      install(battle, unit) {
+        // PLX-X “七窍玲珑”: 技能开启时保留部分效果 (any skill; 玲珑's switched state included)
+        const keepDef = num(tb['lin_e_002[buff].def']), keepRes = num(tb['lin_e_002[buff].magic_resistance']);
+        if (keepDef || keepRes) {
+          battle.on('skillStart', (c) => { if (c.unit === unit) battle.addBuff(unit, { key: KEEP_KEY, mods: { defPct: keepDef, resFlat: keepRes }, tags: ['module'] }); }, { owner: unit });
+          battle.on('skillEnd', (c) => { if (c.unit === unit) battle.removeBuff(unit, KEEP_KEY); }, { owner: unit });
+        }
+        // PLX-Y “情与义”: +damage_scale per enemy on her range (≤ max_valid_stack_cnt), every damage she deals
+        const per = num(hidden.damage_scale), cap = Math.max(0, Math.floor(num(hidden.max_valid_stack_cnt, 5)));
+        if (per > 0 && cap > 0) {
+          battle.on('hit', (c) => {
+            if (c.source !== unit || !c.target || c.target.side !== 'enemy' || c.dmg.type === 'element' || !unit.rangeKeySet) return;
+            let n = 0;
+            for (const e of battle.enemies) if (e.alive && !e.hidden && bodyInKeys(e, unit.rangeKeySet) && ++n >= cap) break;
+            if (n > 0) c.dmg.mul *= 1 + per * n;
+          }, { owner: unit });
+        }
+      },
+    };
+  },
+};
diff --git a/test/content/op_aphris.test.js b/test/content/op_aphris.test.js
new file mode 100644
index 00000000..0abf09af
--- /dev/null
+++ b/test/content/op_aphris.test.js
@@ -0,0 +1,277 @@
+// test/content/op_aphris.test.js — the 自选 operator kit of 谬因 (char_4229_aphris, 6★ 轰击术师; kit
+// server/sim/content/kits/ops/op-aphris.js) and her summon “中继器” (token_10070_aphris_pc), fielded the production way (a DIY
+// slot + its `diy` pick, simdata getDiy; the 中继器 as a token piece of hers) in every form: tiers 5 / 6, normal (E2 Lv1,
+// skill rank 4, no module) and elite (E2 Lv60, rank 7) with no module or BLA-Y “第三相态” at stage 1 (tier 5) / 3 (tier 6).
+// Every number is read back from data/backups.json (the form of that slot status, the token's variant); the fidelity
+// checklist of kits/README.md item by item.
+// Run: node --test test/content/op_aphris.test.js
+
+import { test } from 'node:test';
+import assert from 'node:assert/strict';
+import { readFileSync } from 'node:fs';
+import { makeBattle, enemyRec, checkInvariants } from '../helpers/battleHarness.js';
+import { KITTED_CHARS, OPERATOR_KITS, KITS } from '../../server/sim/content/kits/index.js';
+import { diyPool, validateDiyPicks } from '../../shared/diy.js';
+
+const load = (f) => JSON.parse(readFileSync(new URL(`../../data/${f}.json`, import.meta.url), 'utf8'));
+const CHESS = load('chess');
+const BACKUPS = load('backups');
+const APHRIS = 'char_4229_aphris';
+const RELAY = 'token_10070_aphris_pc';
+const FORMS = BACKUPS.units[APHRIS].forms;
+const TOKEN = BACKUPS.tokens[RELAY];
+const SLOT = { 5: 'chess_char_5_diy1_a', 6: 'chess_char_6_diy1_a' };
+const BLAY = 'uniequip_002_aphris';
+const S1 = 'skchr_aphris_1', S2 = 'skchr_aphris_2', S3 = 'skchr_aphris_3';
+const statusKey = (tier, elite) => (elite ? (tier === 5 ? '2/60/7/1' : '2/60/7/3') : '2/1/4/0');
+const formOf = (tier, elite) => FORMS[statusKey(tier, elite)];
+const skillOf = (tier, elite, id) => formOf(tier, elite).skills.find((s) => s.skillId === id);
+const modOf = (tier, mod) => (mod ? formOf(tier, true).modules.find((m) => m.uniEquipId === mod) : null);
+const approx = (a, b, msg, eps = 1e-6) => assert.ok(Math.abs(a - b) <= eps * Math.max(1, Math.abs(b)), `${msg}: ${a} vs ${b}`);
+const dummy = (key, o = {}) => enemyRec({ key, hp: 1e9, speed: 0, mass: 0, ...o });
+const ENEMIES = { enemy_dummy: dummy('enemy_dummy'), enemy_fly: dummy('enemy_fly', { motion: 'FLY' }), enemy_hitter: dummy('enemy_hitter', { atk: 500, range: 3, bat: 1 }) };
+const FORMS_ALL = [[5, false, null], [6, false, null], ...[5, 6].flatMap((t) => [null, BLAY].map((m) => [t, true, m]))];
+const label = ([tier, elite, mod]) => `T${tier} ${elite ? 'elite' : 'normal'} ${mod ?? 'none'}`;
+const K = (r, c) => r * 21 + c;
+const sortN = (a) => [...a].sort((x, y) => x - y);
+/** 谬因 at (9, 2) facing RIGHT; her own line (9, 2) … (9, 7). */
+const OWN = [[9, 2], [9, 3], [9, 4], [9, 5], [9, 6], [9, 7]];
+/** With her 中继器 on (9, 4) facing UP: two steps to it, then 5 more (5 + 2) turned up. */
+const BENT = [[9, 2], [9, 3], [9, 4], [10, 4], [11, 4], [12, 4], [13, 4], [14, 4]];
+
+/** A battle with 谬因 as uid 1 at (9, 2) facing RIGHT (`relay`: her piece as uid 2 at relay.row / col / dir), plus `others`. */
+function field({ tier = 5, elite = false, mod = null, skill = 1, relay = null, others = [], seed = 5, dp = 99 } = {}) {
+  const units = [{ uid: 1, diy: { slot: SLOT[tier], charId: APHRIS, skillIndex: skill, uniEquipId: mod }, elite, row: 9, col: 2 }];
+  if (relay) units.push({ uid: 2, kind: 'token', tokenId: RELAY, ownerUid: 1, row: relay.row, col: relay.col, dir: relay.dir });
+  const h = makeBattle({
+    defs: { enemies: ENEMIES }, timeLimit: 900, autoFinish: false, seed,
+    flags: { dpInit: dp, dpPerSec: 0, dpMax: 999 }, hooks: ['damaged', 'skillStart', 'skillEnd', 'statusApplied', 'death', 'deploy'], captureNoisy: true,
+    units: [...units, ...others],
+  });
+  h.step();
+  return { h, u: h.unit(1), r: relay ? h.unit(2) : null };
+}
+const UP4 = { row: 9, col: 4, dir: 'UP' };
+const atkHits = (h, u) => h.hooksOf('damaged').filter((c) => c.source === u && c.dmg?.isAttack);
+const tagged = (h, u, tag) => h.hooksOf('damaged').filter((c) => c.source === u && c.dmg?.tags?.includes(tag));
+function done(h) {
+  checkInvariants(h.b);
+  assert.equal(h.b.errors.length, 0, JSON.stringify(h.b.errors[0]));
+}
+
+test('谬因 in every 自选 form: her operator kit (all three skills authored), the form\'s stats + module attributes (BLA-Y: 部署费用 −8), 5-1 line without a 中继器, 轰击术师, no 特质', () => {
+  assert.equal(OPERATOR_KITS[APHRIS], KITS[APHRIS]);
+  for (const f of FORMS_ALL) {
+    const [tier, elite, mod] = f;
+    for (const skill of [0, 1, 2]) {
+      const { h, u } = field({ tier, elite, mod, skill });
+      const form = formOf(tier, elite), m = elite ? modOf(tier, mod) : null;
+      assert.deepEqual([u.def.charId, u.def.diyFor, u.skill.id, !!u.kit.generic, u.kit.skillSource], [APHRIS, SLOT[tier], form.skills[skill].skillId, false, 'skills'], label(f));
+      assert.deepEqual([u.base.maxHp, u.base.atk, u.base.def, u.base.cost], [form.stats.maxHp + (m?.attr.maxHp ?? 0), form.stats.atk + (m?.attr.atk ?? 0), form.stats.def, form.stats.cost + (m?.attr.cost ?? 0)], `${label(f)}: stats`);
+      assert.deepEqual([u.profile.dmgType, u.profile.canHitFly, u.profile.allInRange, u.profile.projectile], ['arts', true, true, 'beam'], `${label(f)}: 轰击术师`);
+      assert.deepEqual(sortN(u.rangeKeys), sortN(OWN.map(([a, b]) => K(a, b))), `${label(f)}: her own 5-1`);
+      assert.deepEqual(u.liveRangeGrid, form.rangeGrid, `${label(f)}: the card shows 5-1`);
+      assert.deepEqual([u.def.bonds, u.def.raw.garrisonIds, u.def.tokens], [BACKUPS.diy.operators[APHRIS].bonds, [], [RELAY]], `${label(f)}: bonds / 特质 / summon`);
+      assert.ok(!u.s.flags.liftoff && !u.s.flags.camou && !u.s.flags.stealth, `${label(f)}: enemies target her`);
+      done(h);
+    }
+  }
+  // E2 Lv1 1261 / 727, E2 Lv60 1526 / 826, cost 34; BLA-Y −8 cost, +120 / +45 → +200 / +70 HP / ATK
+  assert.deepEqual([FORMS['2/1/4/0'].stats.maxHp, FORMS['2/1/4/0'].stats.atk, FORMS['2/60/7/1'].stats.maxHp, FORMS['2/60/7/1'].stats.atk, FORMS['2/60/7/1'].stats.cost], [1261, 727, 1526, 826, 34]);
+  assert.deepEqual([modOf(5, BLAY).attr, modOf(6, BLAY).attr], [{ cost: -8, maxHp: 120, atk: 45 }, { cost: -8, maxHp: 200, atk: 70 }]);
+});
+
+test('a 自选 pick: 谬因 is offered at tiers 5 and 6 (she has a kit) and a roster with her passes validateDiyPicks', () => {
+  const data = { chess: CHESS, backups: BACKUPS };
+  assert.ok(KITTED_CHARS.includes(APHRIS));
+  for (const t of [5, 6]) assert.ok(diyPool(t, { data, kitted: KITTED_CHARS }).includes(APHRIS), `tier ${t}`);
+  assert.deepEqual(validateDiyPicks({ [SLOT[6]]: { charId: APHRIS, skillIndex: 1, uniEquipId: BLAY } }, { data, kitted: KITTED_CHARS }),
+    { ok: true, picks: { [SLOT[6]]: { charId: APHRIS, skillIndex: 1, uniEquipId: BLAY } } });
+});
+
+test('链路协议 range: her 中继器 turns the path to its facing and allows 2 more tiles; one attack strikes every enemy of the bent path (air too), none of the straight line past it; the card shows the bent path', () => {
+  for (const f of FORMS_ALL) {
+    const { h, u, r } = field({ tier: f[0], elite: f[1], mod: f[2], skill: 1, relay: UP4 });
+    assert.deepEqual([r.alive, r.dir, r.ownerUnit === u, r.def.id], [true, 'UP', true, RELAY], `${label(f)}: the piece`);
+    assert.deepEqual(sortN(u.rangeKeys), sortN(BENT.map(([a, b]) => K(a, b))), `${label(f)}: bent path`);
+    assert.deepEqual(sortN(u.baseRangeKeys), sortN(BENT.map(([a, b]) => K(a, b))), `${label(f)}: the DEFAULT trigger reads it too`);
+    assert.equal(u.liveRangeGrid.length, BENT.length, `${label(f)}: the card`);
+    const before = h.spawn('enemy_dummy', { pos: [9, 3] }), past = h.spawn('enemy_fly', { pos: [12, 4] }), straight = h.spawn('enemy_dummy', { pos: [9, 6] });
+    h.runUntil(() => atkHits(h, u).length >= 2, 4);
+    const hits = atkHits(h, u);
+    const first = hits.filter((c) => c.dmg.attackId === hits[0].dmg.attackId);
+    assert.deepEqual(first.map((c) => c.target.id).sort(), [before.id, past.id].sort(), `${label(f)}: the bent path`);
+    assert.ok(!hits.some((c) => c.target === straight), `${label(f)}: not the straight line past the piece`);
+    done(h);
+  }
+});
+
+test('the 中继器 (T1 链路协议): ATK +25 % (T6 BLA-Y +35 %) while it stands; it withdraws after 25 s (T6 BLA-Y 35 s) and comes back on its tile 30 s (T6 BLA-Y 20 s) later for 3 DP; untargetable, 无敌, 禁疗, 孤立, blocks nothing', () => {
+  for (const f of FORMS_ALL) {
+    const [tier, elite, mod] = f;
+    const { h, u, r } = field({ tier, elite, mod, skill: 1, relay: UP4 });
+    const y3 = elite && tier === 6 && mod === BLAY;
+    const v = TOKEN.variants[`${APHRIS}@${statusKey(tier, elite)}`];
+    const stats = (mod && v.byModule?.[mod]?.stats) || v.stats;
+    const life = y3 ? 35 : 25, back = y3 ? 20 : 30, atk = y3 ? 0.35 : 0.25;
+    assert.deepEqual([stats.respawnTime, stats.cost, r.base.respawnTime, r.base.blockCnt], [back, 3, back, 0], `${label(f)}: token data`);
+    assert.equal(u.def.raw.talents.find((t) => t.index === 0).bb.atk, atk, `${label(f)}: talent`);
+    assert.deepEqual([r.s.flags.untargetable, r.s.flags.invulnerable, r.s.flags.isolated, r.s.flags.noHeal], [true, true, true, true], `${label(f)}: flags`);
+    h.run(0.1);
+    approx(u.s.atk, u.base.atk * (1 + atk), `${label(f)}: ATK +${atk * 100} %`);
+    h.run(life - 0.3);
+    assert.ok(r.alive, `${label(f)}: still there before ${life} s`);
+    const dp0 = h.b.players[0].dp;
+    h.run(0.4);
+    assert.ok(!r.alive && !r.removed, `${label(f)}: withdrawn after ${life} s, waiting`);
+    h.step();
+    approx(u.s.atk, u.base.atk, `${label(f)}: no bonus without it`);
+    assert.deepEqual(sortN(u.rangeKeys), sortN(OWN.map(([a, b]) => K(a, b))), `${label(f)}: the straight line again`);
+    h.run(back - 0.4);
+    assert.ok(!r.alive, `${label(f)}: not before ${back} s`);
+    h.run(0.6);
+    assert.ok(r.alive && r.tileR === 9 && r.tileC === 4 && r.dir === 'UP', `${label(f)}: back on its tile`);
+    approx(dp0 - h.b.players[0].dp, 3, `${label(f)}: 3 DP`);
+    h.step();
+    approx(u.s.atk, u.base.atk * (1 + atk), `${label(f)}: the bonus again`);
+    done(h);
+  }
+});
+
+test('T2 取样优化: every allied operator standing on her path — her own tile too — ignores 10 RES (法术穿透); none off it', () => {
+  for (const f of FORMS_ALL) {
+    const others = [{ uid: 3, chessId: 'chess_char_1_02_a', row: 10, col: 4 }, { uid: 4, chessId: 'chess_char_1_02_a', row: 9, col: 6 }];
+    const { h, u } = field({ tier: f[0], elite: f[1], mod: f[2], skill: 1, relay: UP4, others });
+    assert.equal(u.def.raw.talents.find((t) => t.index === 1).bb.magic_resist_penetrate_fixed, 10, label(f));
+    h.run(0.3);
+    assert.deepEqual([u.s.resIgnoreFlat, h.unit(3).s.resIgnoreFlat, h.unit(4).s.resIgnoreFlat], [10, 10, 0], `${label(f)}: herself, the one on the bent path, not the one on the straight line`);
+    done(h);
+  }
+});
+
+test('S1 连续映射 (AUTO, 持续时间无限 — the kit\'s SP_FULL: no enemy needed): at full SP (45 / 40); ATK +90 % / +120 %; a 中继器 whose time runs out stays', () => {
+  for (const [tier, elite, mod] of [[5, false, null], [6, true, BLAY]]) {
+    const sk = skillOf(tier, elite, S1);
+    const { h, u, r } = field({ tier, elite, mod, skill: 0, relay: UP4 });
+    assert.deepEqual([u.skill.rule, u.skill.kind, u.skill.spCost, sk.bb.atk], ['SP_FULL', 'toggle', elite ? 40 : 45, elite ? 1.2 : 0.9], `T${tier}`);
+    h.run(sk.spCost - 1);
+    assert.equal(u.skill.activations, 0, `T${tier}: not before full SP`);
+    assert.ok(h.runUntil(() => u.skill.active, 2), `T${tier}: cast at full SP, no enemy on the field`);
+    approx(u.s.atk, u.base.atk * (1 + sk.bb.atk), `T${tier}: ATK (no 中继器 bonus: it withdrew at its time)`);
+    // the piece back (cooldown), then its time runs out while 连续映射 runs: it stays
+    h.runUntil(() => r.alive, 40);
+    h.run((elite && tier === 6 ? 35 : 25) + 5);
+    assert.ok(r.alive, `T${tier}: the 中继器 stays`);
+    approx(u.s.atk, u.base.atk * (1 + sk.bb.atk + (elite && tier === 6 ? 0.35 : 0.25)), `T${tier}: both bonuses`);
+    h.run(60);
+    assert.deepEqual([u.skill.active, u.skill.activations], [true, 1], `T${tier}: infinite`);
+    done(h);
+  }
+});
+
+test('S2 临界瞬爆 (MANUAL, data DEFAULT, 8 s): no normal attack; from 0.167 s every 0.5 s the beam hits every enemy along an unbounded path — turned by her 中继器 and by any allied operator it reaches — for 90 % / 120 % ATK arts; 16 hits; her range is back after', () => {
+  for (const [tier, elite] of [[5, false], [6, true]]) {
+    const sk = skillOf(tier, elite, S2);
+    const others = [{ uid: 3, chessId: 'chess_char_1_02_a', row: 11, col: 4, dir: 'RIGHT' }];
+    const { h, u } = field({ tier, elite, skill: 1, relay: UP4, others });
+    assert.deepEqual([u.skill.rule, sk.duration, sk.bb.atk_scale, sk.bb.interval, u.skill.spCost], ['DEFAULT', 8, elite ? 1.2 : 0.9, 0.5, elite ? 20 : 22], `T${tier}`);
+    const inPath = h.spawn('enemy_dummy', { pos: [10, 4] }), afterOp = h.spawn('enemy_fly', { pos: [11, 9] });
+    const pastOp = h.spawn('enemy_dummy', { pos: [12, 4] }), straight = h.spawn('enemy_dummy', { pos: [9, 6] });
+    u.skill.gainSp(999);
+    assert.ok(h.runUntil(() => u.skill.active, 4), `T${tier}: cast`);
+    // the beam: (9,2) → (9,4) 中继器 UP → (11,4) 角峰 RIGHT → the field's edge
+    for (const [a, b] of [[10, 4], [11, 4], [11, 5], [11, 10], [11, 20]]) assert.ok(u.rangeKeySet.has(K(a, b)), `T${tier}: (${a}, ${b}) on the beam`);
+    for (const [a, b] of [[12, 4], [9, 5], [9, 6]]) assert.ok(!u.rangeKeySet.has(K(a, b)), `T${tier}: (${a}, ${b}) off it`);
+    const n0 = atkHits(h, u).length, cast = h.hooksOf('skillStart').at(-1).t;
+    h.runUntil(() => !u.skill.active, 10);
+    const endT = h.hooksOf('skillEnd').at(-1).t;
+    const beam = tagged(h, u, 'aphris:beam');
+    approx(beam[0].t - cast, 0.167, `T${tier}: the first hit after the Begin clip (0.167 s)`, 0.2);
+    approx(beam.filter((c) => c.target === inPath)[1].t - beam[0].t, 0.5, `T${tier}: then every 0.5 s`, 0.07);
+    for (const e of [inPath, afterOp]) {
+      const mine = beam.filter((c) => c.target === e);
+      assert.equal(mine.length, 16, `T${tier}: 16 beam hits on ${e.defId}`);
+      approx(mine[0].amount, u.s.atk * sk.bb.atk_scale, `T${tier}: ${sk.bb.atk_scale * 100} % ATK`);
+      assert.deepEqual([mine[0].type, mine[0].dmg.isAttack], ['arts', false], `T${tier}: arts, no normal attack`);
+    }
+    assert.ok(!beam.some((c) => c.target === pastOp || c.target === straight), `T${tier}: nothing off the beam`);
+    assert.equal(atkHits(h, u).filter((c) => c.t < endT).length, n0, `T${tier}: no normal attack meanwhile`);
+    assert.deepEqual(sortN(u.rangeKeys), sortN(BENT.map(([a, b]) => K(a, b))), `T${tier}: the bent 5-1 path again`);
+    done(h);
+  }
+});
+
+test('S3 混沌的本质 (MANUAL, data DEFAULT, 20 bullets): 3 s 强制缴械 from the cast, every 中继器 withdrawn and back at once; interval 2.9 → 1.8 s, ATK +95 % / +115 %, 140 % / 155 % + 停顿 0.2 / 0.4 s; past a 中继器 +25 % / +30 % ATK and 停顿 +0.2 / +0.4 s; no 中继器 withdraws until it ends, all do then and come back at once', () => {
+  for (const [tier, elite, mod] of [[5, false, null], [6, true, BLAY]]) {
+    const sk = skillOf(tier, elite, S3);
+    const { h, u, r } = field({ tier, elite, mod, skill: 2, relay: UP4 });
+    const atk = elite && tier === 6 ? 0.35 : 0.25;
+    assert.deepEqual([u.skill.rule, u.skill.kind, u.skill.ammo, sk.bb.charge_time, sk.bb.base_attack_time, sk.bb.atk, sk.bb['attack@atk_scale'], sk.bb['attack@origin_sluggish'], sk.bb['attack@extra_atk_scale'], sk.bb['attack@extra_sluggish']],
+      ['DEFAULT', 'ammo', 20, 3, -1.1, elite ? 1.15 : 0.95, elite ? 1.55 : 1.4, elite ? 0.4 : 0.2, elite ? 0.3 : 0.25, elite ? 0.4 : 0.2], `T${tier}`);
+    const before = h.spawn('enemy_dummy', { pos: [9, 3] }), past = h.spawn('enemy_dummy', { pos: [11, 4] }), off = h.spawn('enemy_dummy', { pos: [9, 6] });
+    u.skill.gainSp(999);
+    assert.ok(h.runUntil(() => u.skill.active, 4), `T${tier}: cast`);
+    const t0 = h.hooksOf('skillStart').at(-1).t, n0 = atkHits(h, u).length;
+    assert.ok(h.hooksOf('death').some((c) => c.unit === r && Math.abs(c.t - t0) < 1e-9), `T${tier}: the 中继器 withdrawn at the cast`);
+    assert.ok(h.runUntil(() => r.alive, 0.5), `T${tier}: and back at once (redeploy time cleared)`);
+    h.run(2.8 - (h.b.time - t0));
+    assert.equal(atkHits(h, u).length, n0, `T${tier}: 强制缴械 3 s`);
+    approx(u.s.interval, 1.8, `T${tier}: 1.8 s`);
+    approx(u.s.atk, u.base.atk * (1 + atk + sk.bb.atk), `T${tier}: ATK`);
+    h.runUntil(() => atkHits(h, u).length > n0, 1);
+    const hits = atkHits(h, u).slice(n0);
+    assert.ok(h.b.time - t0 >= 3 - 1e-6, `T${tier}: the first attack after 3 s`);
+    assert.deepEqual(hits.map((c) => c.target.id).sort(), [before.id, past.id].sort(), `T${tier}: the bent path`);
+    for (const c of hits) { approx(c.amount, u.s.atk * sk.bb['attack@atk_scale'], `T${tier}: ${sk.bb['attack@atk_scale'] * 100} %`); assert.equal(c.type, 'arts'); }
+    assert.deepEqual(sortN(u.rangeKeys), sortN(BENT.map(([a, b]) => K(a, b))), `T${tier}: the bent 5-1 path while it runs`);
+    const extra = tagged(h, u, 'aphris:relay');
+    assert.deepEqual(extra.map((c) => c.target.id), [past.id], `T${tier}: the extra hit past the 中继器 only`);
+    approx(extra[0].amount, u.s.atk * sk.bb['attack@extra_atk_scale'], `T${tier}: +${sk.bb['attack@extra_atk_scale'] * 100} % ATK`);
+    const slow = (e) => h.hooksOf('statusApplied').filter((c) => c.source === u && c.status === 'sluggish' && c.target === e).at(-1)?.duration;
+    approx(slow(before), sk.bb['attack@origin_sluggish'], `T${tier}: 停顿 before it`);
+    approx(slow(past), sk.bb['attack@origin_sluggish'] + sk.bb['attack@extra_sluggish'], `T${tier}: 停顿 past it`);
+    assert.ok(!hits.some((c) => c.target === off));
+    // its time runs out during the skill: it stays; all go when the skill ends — and come back at once (redeploy time
+    // cleared again), with their normal time
+    h.runUntil(() => !u.skill.active, 60);
+    assert.equal(atkHits(h, u).filter((c) => c.dmg.isSkill).length, 2 * 20, `T${tier}: 20 bullets (2 targets each)`);
+    const end = h.hooksOf('skillEnd').at(-1).t;
+    assert.ok(end - t0 > (elite && tier === 6 ? 35 : 25), `T${tier}: it outlasted the piece's time`);
+    assert.ok(h.hooksOf('death').some((c) => c.unit === r && Math.abs(c.t - end) < 1e-9), `T${tier}: withdrawn at the end`);
+    assert.ok(h.runUntil(() => r.alive, 0.5), `T${tier}: back at once`);
+    const back = h.b.time;
+    h.run((elite && tier === 6 ? 35 : 25) + 0.5);
+    assert.ok(h.hooksOf('death').some((c) => c.unit === r && c.t > back), `T${tier}: and withdraws at its time again`);
+    done(h);
+  }
+});
+
+test('BLA-Y “第三相态” (stages 1 and 3): the 部署费用 attribute (34 → 26); stage 3 only: 35 s 中继器, its redeploy time 30 → 20 s (再部署时间变短), ATK +35 %', () => {
+  for (const tier of [5, 6]) {
+    for (const mod of [null, BLAY]) {
+      const { h, u, r } = field({ tier, elite: true, mod, relay: UP4 });
+      assert.equal(u.base.cost, mod ? 26 : 34, `T${tier} ${mod}: cost`);
+      const y3 = tier === 6 && mod === BLAY;
+      assert.deepEqual(r.def.talents.map((t) => t.bb.duration), y3 ? [25, 35] : [25], `T${tier} ${mod}: the piece's talents`);
+      assert.equal(r.base.respawnTime, y3 ? 20 : 30, `T${tier} ${mod}: redeploy time`);
+      if (y3) assert.match(u.def.raw.talents.find((t) => t.index === 0).desc, /35秒.*再部署时间变短.*攻击力\+35%/);
+      done(h);
+    }
+  }
+});
+
+test('链路协议: her 中继器 leaves the field with her (die_to_kill_token) and is back on its tile as soon as she is (charge_token[born]), not before', () => {
+  const { h, u, r } = field({ tier: 6, elite: true, mod: BLAY, skill: 1, relay: UP4 });
+  h.run(2);
+  assert.ok(r.alive);
+  const e = h.spawn('enemy_dummy', { pos: [9, 3] });
+  h.b.dealDamage(e, u, { amount: 1e7, type: 'true' });
+  assert.equal(u.alive, false, 'knocked out');
+  assert.ok(!r.alive && !r.removed, 'the piece withdrawn with her');
+  h.run(40);
+  assert.ok(!r.alive, 'not while she is down (its redeploy time is long over)');
+  h.runUntil(() => u.alive, 60);
+  assert.ok(h.runUntil(() => r.alive, 0.5), 'back with her');
+  assert.ok(r.tileR === 9 && r.tileC === 4 && r.dir === 'UP', 'on its tile');
+  done(h);
+});
diff --git a/test/content/op_ifrit.test.js b/test/content/op_ifrit.test.js
new file mode 100644
index 00000000..63fb1fe4
--- /dev/null
+++ b/test/content/op_ifrit.test.js
@@ -0,0 +1,294 @@
+// test/content/op_ifrit.test.js — the 自选 operator kit of 伊芙利特 (char_134_ifrit, 6★ 轰击术师; kit
+// server/sim/content/kits/ops/op-ifrit.js), fielded the production way (a DIY slot + its `diy` pick, simdata getDiy) in
+// every form: tiers 5 / 6, normal (E2 Lv1, skill rank 4, no module) and elite (E2 Lv60, rank 7) with no module, BLA-X
+// “同熔” or BLA-D “热成形记忆” at stage 1 (tier 5) / 3 (tier 6). Every number is read back from data/backups.json (the form of
+// that slot status); the fidelity checklist of kits/README.md item by item.
+// Run: node --test test/content/op_ifrit.test.js
+
+import { test } from 'node:test';
+import assert from 'node:assert/strict';
+import { readFileSync } from 'node:fs';
+import { makeBattle, enemyRec, checkInvariants } from '../helpers/battleHarness.js';
+import { KITTED_CHARS, OPERATOR_KITS, KITS } from '../../server/sim/content/kits/index.js';
+import { diyPool, validateDiyPicks } from '../../shared/diy.js';
+
+const load = (f) => JSON.parse(readFileSync(new URL(`../../data/${f}.json`, import.meta.url), 'utf8'));
+const CHESS = load('chess');
+const BACKUPS = load('backups');
+const IFRIT = 'char_134_ifrit';
+const FORMS = BACKUPS.units[IFRIT].forms;
+const SLOT = { 5: 'chess_char_5_diy1_a', 6: 'chess_char_6_diy1_a' };
+const BLAX = 'uniequip_002_ifrit', BLAD = 'uniequip_003_ifrit';
+const S1 = 'skchr_ifrit_1', S2 = 'skchr_ifrit_2', S3 = 'skchr_ifrit_3';
+const formOf = (tier, elite) => FORMS[elite ? (tier === 5 ? '2/60/7/1' : '2/60/7/3') : '2/1/4/0'];
+const skillOf = (tier, elite, id) => formOf(tier, elite).skills.find((s) => s.skillId === id);
+const modOf = (tier, mod) => (mod ? formOf(tier, true).modules.find((m) => m.uniEquipId === mod) : null);
+const approx = (a, b, msg, eps = 1e-6) => assert.ok(Math.abs(a - b) <= eps * Math.max(1, Math.abs(b)), `${msg}: ${a} vs ${b}`);
+const dummy = (key, o = {}) => enemyRec({ key, hp: 1e9, speed: 0, mass: 0, ...o });
+const ENEMIES = {
+  enemy_dummy: dummy('enemy_dummy'), enemy_fly: dummy('enemy_fly', { motion: 'FLY' }),
+  enemy_res: dummy('enemy_res', { res: 50 }), enemy_def: dummy('enemy_def', { def: 300 }),
+  enemy_hitter: dummy('enemy_hitter', { atk: 1000, range: 0, bat: 1 }),
+};
+/** Every 自选 form: [tier, elite, module]. */
+const FORMS_ALL = [[5, false, null], [6, false, null], ...[5, 6].flatMap((t) => [null, BLAX, BLAD].map((m) => [t, true, m]))];
+const label = ([tier, elite, mod]) => `T${tier} ${elite ? 'elite' : 'normal'} ${mod ?? 'none'}`;
+
+/** A battle with 伊芙利特 as uid 1 at (row, col) facing RIGHT (her line: that row, col … col + 5), plus `others`. */
+function field({ tier = 5, elite = false, mod = null, skill = 0, row = 10, col = 4, others = [], seed = 5, flags = {} } = {}) {
+  const h = makeBattle({
+    defs: { enemies: ENEMIES }, timeLimit: 900, autoFinish: false, seed,
+    flags: { dpPerSec: 0, dpMax: 999, ...flags }, hooks: ['damaged', 'skillStart', 'skillEnd', 'statusApplied', 'spGain'], captureNoisy: true,
+    units: [{ uid: 1, diy: { slot: SLOT[tier], charId: IFRIT, skillIndex: skill, uniEquipId: mod }, elite, row, col }, ...others],
+  });
+  h.step();
+  return { h, u: h.unit(1) };
+}
+const atkHits = (h, u) => h.hooksOf('damaged').filter((c) => c.source === u && c.dmg?.isAttack);
+const tagged = (h, u, tag) => h.hooksOf('damaged').filter((c) => (c.source === u || c.credit === u) && c.dmg?.tags?.includes(tag));
+function done(h) {
+  checkInvariants(h.b);
+  assert.equal(h.b.errors.length, 0, JSON.stringify(h.b.errors[0]));
+}
+
+test('伊芙利特 in every 自选 form: her operator kit (all three skills authored), the form\'s stats + module attributes, 5-1 line, 轰击术师 (every enemy of the line, air too, arts, instant), no 特质', () => {
+  assert.equal(OPERATOR_KITS[IFRIT], KITS[IFRIT]);
+  for (const f of FORMS_ALL) {
+    const [tier, elite, mod] = f;
+    for (const skill of [0, 1, 2]) {
+      const { h, u } = field({ tier, elite, mod, skill });
+      const form = formOf(tier, elite), m = elite ? modOf(tier, mod) : null;
+      assert.deepEqual([u.def.charId, u.def.diyFor, u.skill.id, !!u.kit.generic, u.kit.skillSource], [IFRIT, SLOT[tier], form.skills[skill].skillId, false, 'skills'], label(f));
+      assert.deepEqual([u.base.maxHp, u.base.atk, u.base.def, u.base.aspd], [form.stats.maxHp + (m?.attr.maxHp ?? 0), form.stats.atk + (m?.attr.atk ?? 0), form.stats.def + (m?.attr.def ?? 0), 100 + (m?.attr.aspd ?? 0)], `${label(f)}: stats`);
+      assert.deepEqual([u.profile.attack, u.profile.dmgType, u.profile.canHitFly, u.profile.allInRange, u.profile.projectile, u.base.bat], ['ranged', 'arts', true, true, 'beam', 2.9], `${label(f)}: 轰击术师`);
+      assert.deepEqual(u.liveRangeGrid, form.rangeGrid, `${label(f)}: 5-1`);
+      assert.deepEqual([u.def.bonds, u.def.raw.garrisonIds], [BACKUPS.diy.operators[IFRIT].bonds, []], `${label(f)}: bonds / 特质`);
+      assert.ok(!u.s.flags.liftoff && !u.s.flags.camou && !u.s.flags.stealth, `${label(f)}: enemies target her`);
+      done(h);
+    }
+  }
+  // E2 Lv1 1276 / 722, E2 Lv60 1544 / 820; BLA-X +50 ATK +5 ASPD → +72 / +7, BLA-D +120 HP +45 ATK → +200 / +70
+  assert.deepEqual([FORMS['2/1/4/0'].stats.maxHp, FORMS['2/1/4/0'].stats.atk, FORMS['2/60/7/1'].stats.maxHp, FORMS['2/60/7/1'].stats.atk], [1276, 722, 1544, 820]);
+  assert.deepEqual([modOf(5, BLAX).attr, modOf(6, BLAX).attr, modOf(5, BLAD).attr, modOf(6, BLAD).attr], [{ atk: 50, aspd: 5 }, { atk: 72, aspd: 7 }, { maxHp: 120, atk: 45 }, { maxHp: 200, atk: 70 }]);
+});
+
+test('a 自选 pick: 伊芙利特 is offered at tiers 5 and 6 (she has a kit) and a roster with her passes validateDiyPicks', () => {
+  const data = { chess: CHESS, backups: BACKUPS };
+  assert.ok(KITTED_CHARS.includes(IFRIT));
+  for (const t of [5, 6]) assert.ok(diyPool(t, { data, kitted: KITTED_CHARS }).includes(IFRIT), `tier ${t}`);
+  assert.deepEqual(validateDiyPicks({ [SLOT[6]]: { charId: IFRIT, skillIndex: 2, uniEquipId: BLAD } }, { data, kitted: KITTED_CHARS }),
+    { ok: true, picks: { [SLOT[6]]: { charId: IFRIT, skillIndex: 2, uniEquipId: BLAD } } });
+});
+
+test('trait 轰击术师: one attack strikes every enemy of her 5-1 line at once — ground and air, the same damage near and far (no module) — and nothing off the line', () => {
+  for (const [tier, elite] of [[5, false], [6, true]]) {
+    const { h, u } = field({ tier, elite, skill: 0 });
+    const near = h.spawn('enemy_dummy', { pos: [10, 5] }), far = h.spawn('enemy_dummy', { pos: [10, 9] });
+    const fly = h.spawn('enemy_fly', { pos: [10, 7] }), off = h.spawn('enemy_dummy', { pos: [11, 5] }), behind = h.spawn('enemy_dummy', { pos: [10, 3] });
+    assert.ok(h.runUntil(() => atkHits(h, u).length > 0, 4), `T${tier}: she attacks`);
+    const first = atkHits(h, u);
+    const hit = first.filter((c) => c.dmg.attackId === first[0].dmg.attackId);
+    assert.deepEqual(hit.map((c) => c.target.id).sort(), [near, far, fly].map((e) => e.id).sort(), `T${tier}: her line, air included`);
+    for (const c of hit) { approx(c.amount, u.s.atk, `T${tier}: 100 % ATK at any distance`); assert.equal(c.type, 'arts'); }
+    for (const e of [off, behind]) assert.ok(!hit.some((c) => c.target === e), `T${tier}: off the line`);
+    done(h);
+  }
+});
+
+test('S1 狂热 (MANUAL, data DEFAULT, 20 s): ATK +10 % / +20 %, ASPD +58 / +67; all back after', () => {
+  for (const [tier, elite] of [[5, false], [6, true]]) {
+    const sk = skillOf(tier, elite, S1);
+    const { h, u } = field({ tier, elite, skill: 0 });
+    assert.deepEqual([u.skill.rule, sk.duration, sk.bb.atk, sk.bb.attack_speed, u.skill.spCost], ['DEFAULT', 20, elite ? 0.2 : 0.1, elite ? 67 : 58, elite ? 44 : 47], `T${tier}`);
+    u.skill.gainSp(999);
+    h.run(1);
+    assert.equal(u.skill.activations, 0, `T${tier}: no enemy, no cast`);
+    h.spawn('enemy_dummy', { pos: [10, 6] });
+    assert.ok(h.runUntil(() => u.skill.active, 2), `T${tier}: cast on her attack`);
+    approx(u.s.atk, u.base.atk * (1 + sk.bb.atk), `T${tier}: ATK`);
+    assert.equal(u.s.aspd, 100 + sk.bb.attack_speed, `T${tier}: ASPD`);
+    approx(u.skill.timeLeft, 20, `T${tier}: 20 s`, 0.01);
+    assert.deepEqual(u.liveRangeGrid, formOf(tier, elite).rangeGrid, `T${tier}: 5-1 while it runs`);
+    h.runUntil(() => !u.skill.active, 25);
+    approx(u.s.atk, u.base.atk, `T${tier}: ATK back`);
+    assert.equal(u.s.aspd, 100, `T${tier}: ASPD back`);
+    done(h);
+  }
+});
+
+test('S2 炎爆 (AUTO, 2 / 3 charges, data DEFAULT): the next attack hits her whole line for 160 % / 190 %, DEF −100 / −200 for 3 s and the 灼伤 (33 % of her current ATK per s, 3 ticks, no dodge) on every enemy hit — the burn ticks on after she leaves', () => {
+  for (const [tier, elite] of [[5, false], [6, true]]) {
+    const sk = skillOf(tier, elite, S2);
+    const { h, u } = field({ tier, elite, skill: 1 });
+    assert.deepEqual([u.skill.rule, u.skill.kind, u.skill.maxCharges, u.skill.spCost, sk.bb.atk_scale, sk.bb.def, sk.bb['burn.atk_scale'], sk.bb.duration],
+      ['DEFAULT', 'charges', elite ? 3 : 2, 8, elite ? 1.9 : 1.6, elite ? -200 : -100, 0.33, 3.01], `T${tier}`);
+    const a = h.spawn('enemy_def', { pos: [10, 6] }), b = h.spawn('enemy_fly', { pos: [10, 8] }), off = h.spawn('enemy_dummy', { pos: [11, 6] });
+    u.skill.gainSp(999);
+    const n0 = atkHits(h, u).length;
+    assert.ok(h.runUntil(() => u.skill.activations === 1 && atkHits(h, u).length > n0, 4), `T${tier}: cast on her next attack`);
+    const hits = atkHits(h, u).slice(n0);
+    const t0 = h.b.time;
+    for (const c of hits) assert.equal(c.dmg.isSkill, true);
+    approx(hits.find((c) => c.target === b).amount, u.s.atk * sk.bb.atk_scale, `T${tier}: ${sk.bb.atk_scale * 100} % on the flyer`);
+    approx(a.s.def, 300 + sk.bb.def < 0 ? 0 : 300 + sk.bb.def, `T${tier}: DEF cut`);
+    assert.equal(off.findBuff('ifrit:pyroDef'), null, `T${tier}: off the line`);
+    assert.ok(a.findBuff('ifrit:pyroBurn') && b.findBuff('ifrit:pyroBurn'), `T${tier}: both burn`);
+    // the burn: 3 ticks of 33 % of her current ATK; she leaves the field after the first one
+    h.runUntil(() => tagged(h, u, 'ifrit:burn').filter((c) => c.target === b).length >= 1, 2);
+    const atkNow = u.s.atk;
+    h.b.retreat(u);
+    h.run(3);
+    const burns = tagged(h, u, 'ifrit:burn').filter((c) => c.target === b);
+    assert.equal(burns.length, 3, `T${tier}: 3 ticks`);
+    approx(burns[0].amount, atkNow * 0.33, `T${tier}: 33 % ATK arts`);
+    for (const c of burns) { assert.deepEqual([c.type, c.dmg.canDodge], ['arts', false]); assert.ok(c.t - t0 <= 3.05, `T${tier}: within 3 s`); }
+    assert.equal(a.findBuff('ifrit:pyroDef'), null, `T${tier}: DEF cut over after 3 s`);
+    done(h);
+  }
+});
+
+test('S3 灼地 (MANUAL, data DEFAULT, 20 s, 维持技能状态): no normal attack; from the Begin clip\'s event (0.4 s) every second each ground enemy of her line takes 90 % / 110 % ATK arts and RES −7 / −10 for 1 s; she loses 2 % max HP per s; 20 ticks; a stun ends it at once', () => {
+  for (const [tier, elite] of [[5, false], [6, true]]) {
+    const sk = skillOf(tier, elite, S3);
+    const { h, u } = field({ tier, elite, skill: 2 });
+    assert.deepEqual([u.skill.rule, sk.duration, sk.bb.atk_scale, sk.bb.magic_resistance, sk.bb.hp_ratio], ['DEFAULT', 20, elite ? 1.1 : 0.9, elite ? -10 : -7, 0.02], `T${tier}`);
+    const g = h.spawn('enemy_res', { pos: [10, 6] }), fly = h.spawn('enemy_fly', { pos: [10, 7] }), off = h.spawn('enemy_res', { pos: [11, 6] });
+    u.skill.gainSp(999);
+    assert.ok(h.runUntil(() => u.skill.active, 4), `T${tier}: cast`);
+    const n0 = atkHits(h, u).length, hp0 = u.hp, cast = h.hooksOf('skillStart').at(-1).t;
+    h.run(1.02);
+    // RES 50 × 0.6 (精神融解) − 7 / −10: (50 − cut) × 0.6
+    approx(g.s.res, (50 + sk.bb.magic_resistance) * 0.6, `T${tier}: RES cut + 精神融解`, 1e-9);
+    approx(off.s.res, 50, `T${tier}: off the line`);
+    assert.deepEqual(u.liveRangeGrid, formOf(tier, elite).rangeGrid, `T${tier}: 5-1 while it runs`);
+    const ticks = () => tagged(h, u, 'ifrit:scorch').filter((c) => c.type === 'arts');
+    assert.equal(ticks().length, 1, `T${tier}: one tick after 1 s`);
+    approx(ticks()[0].t - cast, 0.4, `T${tier}: the first tick at the Begin clip's attack event`, 0.05);
+    approx(ticks()[0].amount, u.s.atk * sk.bb.atk_scale * (1 - (50 + sk.bb.magic_resistance) * 0.6 / 100), `T${tier}: ${sk.bb.atk_scale * 100} % ATK arts`);
+    assert.ok(!ticks().some((c) => c.target === fly || c.target === off), `T${tier}: ground enemies of her line only`);
+    approx(hp0 - u.hp, u.s.maxHp * 0.02, `T${tier}: 2 % max HP`);
+    h.runUntil(() => !u.skill.active, 25);
+    assert.equal(ticks().length, 20, `T${tier}: 20 ticks`);
+    const endT = h.hooksOf('skillEnd').at(-1).t;
+    assert.equal(atkHits(h, u).filter((c) => c.t < endT).length, n0, `T${tier}: no normal attack meanwhile`);
+    // a second cast, cut short by a stun
+    u.hp = u.s.maxHp;
+    u.skill.gainSp(999);
+    assert.ok(h.runUntil(() => u.skill.active, 6), `T${tier}: cast again`);
+    h.run(2.5);
+    h.b.applyStatus(u, 'stun', { duration: 1, force: true });
+    h.step();
+    assert.equal(u.skill.active, false, `T${tier}: the stun ends 灼地`);
+    assert.equal(h.hooksOf('skillEnd').at(-1).reason, 'interrupted');
+    done(h);
+  }
+});
+
+test('T1 精神融解: RES ×0.6 on every enemy of her line (gone once it leaves), none off it; BLA-D stage 3: her attacks and 灼地 ticks on an enemy in its 灼燃 burst add 50 % ATK 元素伤害 (a 持续伤害)', () => {
+  for (const f of FORMS_ALL) {
+    const [tier, elite, mod] = f;
+    const { h, u } = field({ tier, elite, mod, skill: 0 });
+    const t0 = u.def.raw.talents.find((t) => t.index === 0);
+    assert.equal(t0.bb.magic_resistance, -0.4, label(f));
+    const on = h.spawn('enemy_res', { pos: [10, 7] }), off = h.spawn('enemy_res', { pos: [11, 7] });
+    h.run(0.3);
+    approx(on.s.res, 30, `${label(f)}: 50 → 30`);
+    approx(off.s.res, 50, `${label(f)}: off the line`);
+    h.b.retreat(u);
+    h.run(0.6);
+    approx(on.s.res, 50, `${label(f)}: gone with her`);
+    done(h);
+  }
+  for (const [tier, mod, extra] of [[6, BLAD, 0.5], [5, BLAD, 0], [6, BLAX, 0], [6, null, 0]]) {
+    const { h, u } = field({ tier, elite: true, mod, skill: 2 });
+    const e = h.spawn('enemy_dummy', { pos: [10, 6] });
+    const calm = h.spawn('enemy_dummy', { pos: [10, 7] });
+    h.b.addBuff(e, { key: 'burnBurst', duration: 60, flags: { burstLock: true } });
+    const n0 = atkHits(h, u).length;
+    h.runUntil(() => atkHits(h, u).length > n0, 4);
+    h.step();
+    const el = () => tagged(h, u, 'ifrit:meltdown');
+    assert.equal(el().length, extra ? 1 : 0, `T${tier} ${mod}: the extra hit on her attack`);
+    if (extra) {
+      approx(el()[0].amount, u.s.atk * extra, 'T6 BLA-D: 50 % ATK');
+      assert.deepEqual([el()[0].type, el()[0].dmg.element, el()[0].dmg.tags.includes('dot'), el()[0].target], ['elemental', 'burn', true, e]);
+      assert.match(u.def.raw.talents.find((t) => t.index === 0).desc, /灼燃损伤.*爆发期间.*50%的元素伤害/);
+    }
+    // the 灼地 ticks are attacks of hers too (the equip adds it to every ability family)
+    u.skill.gainSp(999);
+    h.runUntil(() => u.skill.active, 4);
+    h.run(2.5);
+    const onTicks = el().filter((c) => c.t > h.hooksOf('skillStart').at(-1).t);
+    assert.equal(onTicks.length, extra ? 3 : 0, `T${tier} ${mod}: one per 灼地 tick (0.4 / 1.4 / 2.4 s)`);
+    assert.ok(!el().some((c) => c.target === calm), `T${tier} ${mod}: none on an enemy outside a burst`);
+    done(h);
+  }
+});
+
+test('T2 莱茵回路: +2 SP every 6 s of a deployment; BLA-X stage 3: a 30 % roll for +5 SP more each 6 s (none in any other form)', () => {
+  for (const f of FORMS_ALL) {
+    const [tier, elite, mod] = f;
+    const { h, u } = field({ tier, elite, mod, skill: 0, seed: 21 });
+    const dice = elite && tier === 6 && mod === BLAX;
+    const t1 = u.def.raw.talents.find((t) => t.index === 1).bb;
+    assert.deepEqual([t1.sp, t1.interval, t1['ifrit_e_002[dice_sp].prob'] ?? 0, t1['ifrit_e_002[dice_sp].sp'] ?? 0], [2, 6, dice ? 0.3 : 0, dice ? 5 : 0], label(f));
+    const gains = () => h.hooksOf('spGain').filter((c) => c.unit === u && c.reason === 'talent');
+    for (let i = 0; i < 60; i++) { u.skill.sp = 0; h.run(6); }
+    const g = gains();
+    const twos = g.filter((c) => c.amount === 2).length, fives = g.filter((c) => c.amount === 5).length;
+    assert.ok(twos >= 59 && twos <= 60, `${label(f)}: ${twos} gifts of 2 SP in 360 s`);
+    if (dice) assert.ok(fives >= 9 && fives <= 30, `${label(f)}: ${fives} / 60 rolls of +5 ≈ 30 %`);
+    else assert.equal(fives, 0, `${label(f)}: no roll`);
+    done(h);
+  }
+});
+
+test('BLA-X “同熔” (stages 1 and 3): ×(1 + 0.1 × d / 4) by the distance to the target, capped at 4 tiles — on her attacks, the 灼伤 while she stands and the 灼地 ticks; none without it', () => {
+  for (const f of FORMS_ALL) {
+    const [tier, elite, mod] = f;
+    const { h, u } = field({ tier, elite, mod, skill: 0 });
+    const blax = elite && mod === BLAX;
+    if (blax) assert.deepEqual(u.def.raw.trait.bb, { min_dist: 0, max_dist: 4, damage_scale: 0.1 }, label(f));
+    const at = [5, 6, 8, 9].map((c) => h.spawn('enemy_dummy', { pos: [10, c] }));
+    const n0 = atkHits(h, u).length;
+    h.runUntil(() => atkHits(h, u).length >= n0 + 4, 4);
+    const hits = atkHits(h, u).slice(n0, n0 + 4);
+    for (const [i, d] of [[0, 1], [1, 2], [2, 4], [3, 5]]) {
+      const c = hits.find((x) => x.target === at[i]);
+      approx(c.amount, u.s.atk * (blax ? 1 + 0.1 * Math.min(1, d / 4) : 1), `${label(f)}: d = ${d}`);
+    }
+    done(h);
+  }
+  // the 灼伤 while she stands and after she left; the 灼地 tick
+  for (const [skill, tag] of [[1, 'ifrit:burn'], [2, 'ifrit:scorch']]) {
+    const { h, u } = field({ tier: 6, elite: true, mod: BLAX, skill });
+    const e = h.spawn('enemy_dummy', { pos: [10, 8] });   // 4 tiles: ×1.1
+    u.skill.gainSp(999);
+    h.runUntil(() => tagged(h, u, tag).filter((c) => c.type === 'arts').length >= 1, 6);
+    const c = tagged(h, u, tag).find((x) => x.type === 'arts' && x.target === e);
+    const scale = skill === 1 ? 0.33 : skillOf(6, true, S3).bb.atk_scale;
+    approx(c.amount, u.s.atk * scale * 1.1, `${tag}: ×1.1 at 4 tiles`);
+    if (skill === 1) {
+      h.b.retreat(u);
+      h.run(2.1);
+      const after = tagged(h, u, tag).filter((x) => x.target === e).at(-1);
+      approx(after.amount, u.s.atk * scale, '灼伤 after she left: no module effect');
+    }
+    done(h);
+  }
+});
+
+test('BLA-D “热成形记忆” (stages 1 and 3): every arts damage she deals while on the field attaches 8 % of it as 灼燃损伤 — her attacks and the 灼伤 — and no 元素损伤 without it', () => {
+  for (const f of FORMS_ALL) {
+    const [tier, elite, mod] = f;
+    const { h, u } = field({ tier, elite, mod, skill: 1 });
+    const blad = elite && mod === BLAD;
+    if (blad) assert.equal(u.def.raw.trait.bb.ep_damage_ratio, 0.08, label(f));
+    const e = h.spawn('enemy_dummy', { pos: [10, 7] });
+    u.skill.gainSp(999);
+    h.runUntil(() => tagged(h, u, 'ifrit:burn').length >= 2, 6);
+    const arts = h.hooksOf('damaged').filter((c) => c.source === u && c.target === e && c.type === 'arts').reduce((s, c) => s + c.amount, 0);
+    approx(e.elem.burn, blad ? arts * 0.08 : 0, `${label(f)}: 8 % of ${Math.round(arts)} arts damage as 灼燃损伤`);
+    done(h);
+  }
+});
diff --git a/test/content/op_lin.test.js b/test/content/op_lin.test.js
new file mode 100644
index 00000000..a7bacf00
--- /dev/null
+++ b/test/content/op_lin.test.js
@@ -0,0 +1,292 @@
+// test/content/op_lin.test.js — the 自选 operator kit of 林 (char_4080_lin, 6★ 阵法术师; kit
+// server/sim/content/kits/ops/op-lin.js), fielded the production way (a DIY slot + its `diy` pick, simdata getDiy) in
+// every form: tiers 5 / 6, normal (E2 Lv1, skill rank 4, no module) and elite (E2 Lv60, rank 7) with no module, PLX-X
+// “七窍玲珑” or PLX-Y “情与义” at stage 1 (tier 5) / 3 (tier 6). Every number is read back from data/backups.json (the form
+// of that slot status); the fidelity checklist of kits/README.md item by item.
+// Run: node --test test/content/op_lin.test.js
+
+import { test } from 'node:test';
+import assert from 'node:assert/strict';
+import { readFileSync } from 'node:fs';
+import { makeBattle, enemyRec, checkInvariants } from '../helpers/battleHarness.js';
+import { KITTED_CHARS, OPERATOR_KITS, KITS } from '../../server/sim/content/kits/index.js';
+import { diyPool, validateDiyPicks } from '../../shared/diy.js';
+
+const load = (f) => JSON.parse(readFileSync(new URL(`../../data/${f}.json`, import.meta.url), 'utf8'));
+const CHESS = load('chess');
+const BACKUPS = load('backups');
+const LIN = 'char_4080_lin';
+const FORMS = BACKUPS.units[LIN].forms;
+const SLOT = { 5: 'chess_char_5_diy1_a', 6: 'chess_char_6_diy1_a' };
+const PLXX = 'uniequip_002_lin', PLXY = 'uniequip_003_lin';
+const S1 = 'skchr_lin_1', S2 = 'skchr_lin_2', S3 = 'skchr_lin_3';
+const formOf = (tier, elite) => FORMS[elite ? (tier === 5 ? '2/60/7/1' : '2/60/7/3') : '2/1/4/0'];
+const skillOf = (tier, elite, id) => formOf(tier, elite).skills.find((s) => s.skillId === id);
+const modOf = (tier, mod) => (mod ? formOf(tier, true).modules.find((m) => m.uniEquipId === mod) : null);
+const approx = (a, b, msg, eps = 1e-6) => assert.ok(Math.abs(a - b) <= eps * Math.max(1, Math.abs(b)), `${msg}: ${a} vs ${b}`);
+const dummy = (key, o = {}) => enemyRec({ key, hp: 1e9, speed: 0, mass: 0, ...o });
+const ENEMIES = { enemy_dummy: dummy('enemy_dummy'), enemy_fly: dummy('enemy_fly', { motion: 'FLY' }), enemy_weak: dummy('enemy_weak', { hp: 10 }) };
+const FORMS_ALL = [[5, false, null], [6, false, null], ...[5, 6].flatMap((t) => [null, PLXX, PLXY].map((m) => [t, true, m]))];
+const label = ([tier, elite, mod]) => `T${tier} ${elite ? 'elite' : 'normal'} ${mod ?? 'none'}`;
+/** Her x-1 (and x-2) range from (10, 5) facing RIGHT, as [row, col]. */
+const X1 = [[12, 5], [11, 4], [11, 5], [11, 6], [10, 3], [10, 4], [10, 5], [10, 6], [10, 7], [9, 4], [9, 5], [9, 6], [8, 5]];
+
+/** A battle with 林 as uid 1 at (10, 5) facing RIGHT, plus `others`. */
+function field({ tier = 5, elite = false, mod = null, skill = 0, others = [], seed = 5, setup = null } = {}) {
+  const h = makeBattle({
+    defs: { enemies: ENEMIES }, timeLimit: 900, autoFinish: false, seed, setup,
+    flags: { dpPerSec: 0, dpMax: 999 }, hooks: ['damaged', 'skillStart', 'skillEnd', 'statusApplied', 'spGain'], captureNoisy: true,
+    units: [{ uid: 1, diy: { slot: SLOT[tier], charId: LIN, skillIndex: skill, uniEquipId: mod }, elite, row: 10, col: 5 }, ...others],
+  });
+  h.step();
+  return { h, u: h.unit(1) };
+}
+const atkHits = (h, u) => h.hooksOf('damaged').filter((c) => c.source === u && c.dmg?.isAttack);
+const glassHits = (h, u) => h.hooksOf('damaged').filter((c) => c.source === u && c.dmg?.tags?.includes('lin:glass'));
+const glassOf = (a) => a.findBuff('lin:glass');
+/** True damage straight to `t` from `src` (no DEF / RES: the exact amount meets the 琉璃璧). */
+const hurt = (h, src, t, n) => h.b.dealDamage(src, t, { amount: n, type: 'true' });
+function done(h) {
+  checkInvariants(h.b);
+  assert.equal(h.b.errors.length, 0, JSON.stringify(h.b.errors[0]));
+}
+
+test('林 in every 自选 form: her operator kit (all three skills authored), the form\'s stats + module attributes, x-1 range, 阵法术师 (no attack and the guard while no skill runs; every enemy of her range, air too, while one does)', () => {
+  assert.equal(OPERATOR_KITS[LIN], KITS[LIN]);
+  for (const f of FORMS_ALL) {
+    const [tier, elite, mod] = f;
+    for (const skill of [0, 1, 2]) {
+      const { h, u } = field({ tier, elite, mod, skill });
+      const form = formOf(tier, elite), m = elite ? modOf(tier, mod) : null;
+      assert.deepEqual([u.def.charId, u.def.diyFor, u.skill.id, !!u.kit.generic, u.kit.skillSource], [LIN, SLOT[tier], form.skills[skill].skillId, false, 'skills'], label(f));
+      assert.deepEqual([u.base.maxHp, u.base.atk, u.base.def, u.base.res, u.base.bat], [form.stats.maxHp + (m?.attr.maxHp ?? 0), form.stats.atk + (m?.attr.atk ?? 0), form.stats.def + (m?.attr.def ?? 0), 15, 2], `${label(f)}: stats`);
+      assert.deepEqual([u.profile.noAttackUnlessSkill, u.profile.allInRange, u.profile.canHitFly, u.profile.dmgType, u.profile.projectile], [true, true, true, 'arts', 'beam'], `${label(f)}: 阵法术师`);
+      const plxx = elite && mod === PLXX;
+      assert.deepEqual([u.profile.guardDef, u.profile.guardRes], plxx ? [2.15, 25] : [2, 20], `${label(f)}: trait tunables`);
+      assert.deepEqual(u.liveRangeGrid, form.rangeGrid, `${label(f)}: x-1`);
+      assert.deepEqual([u.def.bonds, u.def.raw.garrisonIds], [BACKUPS.diy.operators[LIN].bonds, []], `${label(f)}: bonds / 特质`);
+      assert.ok(!u.s.flags.liftoff && !u.s.flags.camou && !u.s.flags.stealth, `${label(f)}: enemies target her`);
+      done(h);
+    }
+  }
+  // E2 Lv1 1679 / 730 / 212, E2 Lv60 1924 / 809 / 232; PLX-X +62 / +45 → +77 / +53 ATK / DEF, PLX-Y +50 / +20 → +73 / +40
+  assert.deepEqual([FORMS['2/1/4/0'].stats.maxHp, FORMS['2/1/4/0'].stats.atk, FORMS['2/60/7/1'].stats.maxHp, FORMS['2/60/7/1'].stats.atk], [1679, 730, 1924, 809]);
+  assert.deepEqual([modOf(5, PLXX).attr, modOf(6, PLXX).attr, modOf(5, PLXY).attr, modOf(6, PLXY).attr], [{ atk: 62, def: 45 }, { atk: 77, def: 53 }, { atk: 50, def: 20 }, { atk: 73, def: 40 }]);
+});
+
+test('a 自选 pick: 林 is offered at tiers 5 and 6 (she has a kit) and a roster with her passes validateDiyPicks', () => {
+  const data = { chess: CHESS, backups: BACKUPS };
+  assert.ok(KITTED_CHARS.includes(LIN));
+  for (const t of [5, 6]) assert.ok(diyPool(t, { data, kitted: KITTED_CHARS }).includes(LIN), `tier ${t}`);
+  assert.deepEqual(validateDiyPicks({ [SLOT[5]]: { charId: LIN, skillIndex: 0, uniEquipId: PLXX } }, { data, kitted: KITTED_CHARS }),
+    { ok: true, picks: { [SLOT[5]]: { charId: LIN, skillIndex: 0, uniEquipId: PLXX } } });
+});
+
+test('trait + PLX-X: DEF ×3 / RES +20 while no skill runs (PLX-X ×3.15 / +25); while one runs the guard is off — PLX-X keeps DEF +100 % / RES +10 (stages 1 and 3)', () => {
+  for (const f of FORMS_ALL) {
+    const [tier, elite, mod] = f;
+    const { h, u } = field({ tier, elite, mod, skill: 1 });
+    const plxx = elite && mod === PLXX;
+    if (plxx) assert.deepEqual(u.def.raw.trait.bb, { def: 2.15, magic_resistance: 25, 'lin_e_002[buff].def': 1, 'lin_e_002[buff].magic_resistance': 10 }, label(f));
+    approx(u.s.def, u.base.def * (1 + (plxx ? 2.15 : 2)), `${label(f)}: guard DEF`);
+    approx(u.s.res, 15 + (plxx ? 25 : 20), `${label(f)}: guard RES`);
+    h.run(1);
+    assert.equal(atkHits(h, u).length, 0, `${label(f)}: no attack while no skill runs`);
+    u.skill.gainSp(999);
+    h.spawn('enemy_dummy', { pos: [10, 6] });
+    assert.ok(h.runUntil(() => u.skill.active, 1), `${label(f)}: 荫庇`);
+    approx(u.s.def, u.base.def * (1 + (plxx ? 1 : 0)), `${label(f)}: skill DEF`);
+    approx(u.s.res, 15 + (plxx ? 10 : 0), `${label(f)}: skill RES`);
+    h.runUntil(() => !u.skill.active, 30);
+    approx(u.s.def, u.base.def * (1 + (plxx ? 2.15 : 2)), `${label(f)}: the guard is back`);
+    done(h);
+  }
+});
+
+test('S1 玲珑 (MANUAL, data SEARCH, a 状态切换类 skill: switched on once and kept): cast as soon as an enemy is in her range; ATK +25 % / +40 %, interval 2 → 3 s, every enemy of her range (air too) 停顿 0.8 / 0.9 s per attack', () => {
+  for (const [tier, elite] of [[5, false], [6, true]]) {
+    const sk = skillOf(tier, elite, S1);
+    const { h, u } = field({ tier, elite, skill: 0 });
+    assert.deepEqual([u.skill.rule, u.skill.kind, sk.bb.atk, sk.bb['attack@sluggish'], sk.bb.base_attack_time, u.skill.spCost], ['SEARCH', 'toggle', elite ? 0.4 : 0.25, elite ? 0.9 : 0.8, 1, elite ? 6 : 8], `T${tier}`);
+    u.skill.gainSp(999);
+    h.run(1);
+    assert.equal(u.skill.activations, 0, `T${tier}: nobody in range`);
+    const a = h.spawn('enemy_dummy', { pos: [10, 7] }), b = h.spawn('enemy_fly', { pos: [11, 5] }), off = h.spawn('enemy_dummy', { pos: [10, 8] });
+    assert.ok(h.runUntil(() => u.skill.active, 0.2), `T${tier}: cast at once (SEARCH)`);
+    approx(u.s.atk, u.base.atk * (1 + sk.bb.atk), `T${tier}: ATK`);
+    approx(u.s.interval, 3, `T${tier}: 3 s`);
+    h.runUntil(() => atkHits(h, u).length >= 2, 4);
+    const hits = atkHits(h, u);
+    assert.deepEqual(hits.map((c) => c.target.id).sort(), [a.id, b.id].sort(), `T${tier}: both in range, air too`);
+    for (const c of hits) { approx(c.amount, u.s.atk, `T${tier}: 100 % ATK`); assert.equal(c.type, 'arts', `T${tier}: arts`); }
+    assert.deepEqual(u.liveRangeGrid, formOf(tier, elite).rangeGrid, `T${tier}: x-1 while it runs`);
+    const slow = h.hooksOf('statusApplied').filter((c) => c.source === u && c.status === 'sluggish');
+    assert.deepEqual(slow.map((c) => c.target.id).sort(), [a.id, b.id].sort(), `T${tier}: 停顿 on each`);
+    for (const c of slow) approx(c.duration, sk.bb['attack@sluggish'], `T${tier}: 停顿 ${sk.bb['attack@sluggish']} s`);
+    assert.ok(!hits.some((c) => c.target === off), `T${tier}: outside x-1`);
+    h.run(120);
+    assert.deepEqual([u.skill.active, u.skill.activations], [true, 1], `T${tier}: kept on`);
+    done(h);
+  }
+});
+
+test('S2 荫庇 (MANUAL, data SEARCH, 25 s): ASPD +50 / +90, taunt −1; every allied unit of her range gets its own 琉璃璧 (threshold 200, Lin\'s ATK, centred on it, its own regrowth), lost at the end; none outside', () => {
+  for (const [tier, elite, mod] of [[5, false, null], [6, true, PLXY]]) {
+    const sk = skillOf(tier, elite, S2);
+    const t0 = formOf(tier, elite).modules?.find((m) => m.uniEquipId === mod)?.talentChanges.find((t) => t.talentIndex === 0)?.bb ?? formOf(tier, elite).talents[0].bb;
+    const others = [{ uid: 2, chessId: 'chess_char_1_02_a', row: 10, col: 6 }, { uid: 3, chessId: 'chess_char_1_02_a', row: 12, col: 9 }];
+    const { h, u } = field({ tier, elite, mod, skill: 1, others });
+    const near = h.unit(2), far = h.unit(3);
+    assert.deepEqual([u.skill.rule, sk.duration, sk.bb.attack_speed, sk.bb.taunt_level], ['SEARCH', 25, elite ? 90 : 50, -1], `T${tier}`);
+    assert.equal(glassOf(near), null, `T${tier}: no copy before the skill`);
+    u.skill.gainSp(999);
+    const e0 = h.spawn('enemy_dummy', { pos: [11, 5] });
+    assert.ok(h.runUntil(() => u.skill.active, 0.5), `T${tier}: cast`);
+    h.run(0.2);
+    assert.deepEqual([u.s.aspd, u.s.taunt], [100 + sk.bb.attack_speed, -1], `T${tier}: ASPD / taunt`);
+    assert.deepEqual([glassOf(near)?.shield, glassOf(near)?.source === u, glassOf(far)], [200, true, null], `T${tier}: a copy in range only`);
+    // the copy breaks on a hit over 200: burst on Lin's range centred on the ally, Lin's ATK, source Lin
+    const inBurst = h.spawn('enemy_dummy', { pos: [10, 8] }), outBurst = h.spawn('enemy_dummy', { pos: [10, 9] });
+    h.step();
+    const hp0 = near.hp;
+    hurt(h, e0, near, 300);
+    approx(hp0 - near.hp, 100, `T${tier}: 300 − 200 through`);
+    assert.equal(glassOf(near), null, `T${tier}: broken`);
+    const gh = glassHits(h, u);
+    assert.ok(gh.some((c) => c.target === inBurst) && !gh.some((c) => c.target === outBurst), `T${tier}: centred on the ally`);
+    approx(gh.find((c) => c.target === inBurst).amount, u.s.atk * t0.atk_scale * (mod === PLXY ? 1 + 0.03 : 1), `T${tier}: ${t0.atk_scale * 100} % Lin ATK`);
+    assert.ok(h.hooksOf('statusApplied').some((c) => c.source === u && c.status === 'stun' && c.target === inBurst), `T${tier}: stunned`);
+    h.run(t0.interval - 0.2);
+    assert.equal(glassOf(near), null, `T${tier}: not before ${t0.interval} s`);
+    h.run(0.4);
+    assert.equal(glassOf(near)?.shield, 200, `T${tier}: back after ${t0.interval} s`);
+    h.runUntil(() => !u.skill.active, 30);
+    assert.equal(glassOf(near), null, `T${tier}: gone with the skill`);
+    assert.ok(glassOf(u), `T${tier}: hers stays`);
+    done(h);
+  }
+});
+
+test('S3 流光乍裂 (MANUAL, data CUSTOM_RANGE x-2, 26 / 28 s): cast with an enemy in x-2; range x-2 while on (bursts too), back after; ATK +125 % / +160 %; her 琉璃璧 threshold ×2 / ×2.5; a knock-out by her attack breaks it (burst) and raises it at once', () => {
+  for (const [tier, elite] of [[5, false], [6, true]]) {
+    const sk = skillOf(tier, elite, S3);
+    const { h, u } = field({ tier, elite, skill: 2 });
+    assert.deepEqual([u.skill.rule, sk.duration, sk.bb.atk, sk.bb.talent_scale, sk.rangeId], ['CUSTOM_RANGE', elite ? 28 : 26, elite ? 1.6 : 1.25, elite ? 2.5 : 2, 'x-2'], `T${tier}`);
+    assert.deepEqual(sk.trigger.customRangeGrid, sk.rangeGrid);
+    u.skill.gainSp(999);
+    const e = h.spawn('enemy_dummy', { pos: [11, 7] });   // x-2 [1, 2], not x-1
+    assert.ok(h.runUntil(() => u.skill.active, 0.5), `T${tier}: cast with an enemy in x-2`);
+    assert.deepEqual(u.liveRangeGrid, sk.rangeGrid, `T${tier}: x-2`);
+    approx(u.s.atk, u.base.atk * (1 + sk.bb.atk), `T${tier}: ATK`);
+    const thr = 200 * sk.bb.talent_scale;
+    assert.equal(glassOf(u).shield, thr, `T${tier}: threshold ${thr}`);
+    const hp0 = u.hp;
+    hurt(h, e, u, 450);
+    if (thr > 450) { assert.equal(u.hp, hp0, `T${tier}: 450 absorbed`); assert.ok(glassOf(u)); } else { approx(hp0 - u.hp, 450 - thr, `T${tier}: 450 − ${thr}`); assert.equal(glassOf(u), null); }
+    // a knock-out by her attack: burst (x-2 around her) and the 琉璃璧 standing again at once
+    if (!glassOf(u)) { h.run(9); assert.ok(glassOf(u), `T${tier}: regrown`); }
+    const witness = h.spawn('enemy_dummy', { pos: [9, 3] });   // x-2 [−1, −2]
+    const weak = h.spawn('enemy_weak', { pos: [10, 6] });
+    h.step();
+    const g0 = glassHits(h, u).length;
+    h.runUntil(() => !weak.alive, 4);
+    h.step();
+    assert.ok(glassHits(h, u).slice(g0).some((c) => c.target === witness), `T${tier}: the kill's burst reaches x-2`);
+    assert.equal(glassOf(u)?.shield, thr, `T${tier}: raised again at once`);
+    h.runUntil(() => !u.skill.active, 40);
+    assert.deepEqual(u.liveRangeGrid, formOf(tier, elite).rangeGrid, `T${tier}: x-1 again`);
+    assert.equal(glassOf(u)?.shield, 200, `T${tier}: plain threshold again`);
+    done(h);
+  }
+});
+
+test('T1 计出万全 (every form): a 琉璃璧 from deployment — a hit ≤ 200 absorbed whole, a hit over 200 goes through less 200 and breaks it: stun 1 s first, then 100 % / 110 % ATK arts on her range, regrowing after 8 s / 6 s (PLX-Y stage 3); a lethal hit still breaks it', () => {
+  for (const f of FORMS_ALL) {
+    const [tier, elite, mod] = f;
+    const order = [];
+    const { h, u } = field({ tier, elite, mod, skill: 2, setup: (b) => {
+      b.on('statusApplied', (c) => { if (c.status === 'stun' && c.source?.uid === 1) order.push('stun'); });
+      b.on('damaged', (c) => { if (c.dmg?.tags?.includes('lin:glass')) order.push(c.target.s.flags.stun ? 'hit-stunned' : 'hit'); });
+    } });
+    const t0 = u.def.raw.talents.find((t) => t.index === 0).bb;
+    const y3 = elite && tier === 6 && mod === PLXY;
+    assert.deepEqual([t0.value, t0.atk_scale, t0.stun, t0.interval], [200, y3 ? 1.1 : 1, 1, y3 ? 6 : 8], label(f));
+    assert.equal(glassOf(u)?.shield, 200, `${label(f)}: up from deployment`);
+    const e = h.spawn('enemy_dummy', { pos: [10, 7] }), out = h.spawn('enemy_dummy', { pos: [10, 9] });
+    h.step();
+    const hp0 = u.hp;
+    hurt(h, e, u, 150);
+    hurt(h, e, u, 200);
+    assert.deepEqual([u.hp, glassOf(u)?.shield], [hp0, 200], `${label(f)}: 150 and 200 absorbed, full again`);
+    hurt(h, e, u, 300);
+    approx(hp0 - u.hp, 100, `${label(f)}: 300 − 200`);
+    assert.equal(glassOf(u), null, `${label(f)}: broken`);
+    const gh = glassHits(h, u);
+    assert.deepEqual(gh.map((c) => c.target.id), [e.id], `${label(f)}: her range only`);
+    const plxy = elite && mod === PLXY ? 1 + 0.03 * 1 : 1;
+    approx(gh[0].amount, u.s.atk * t0.atk_scale * plxy, `${label(f)}: ${t0.atk_scale * 100} % ATK`);
+    assert.deepEqual(order, ['stun', 'hit-stunned'], `${label(f)}: stun first`);
+    assert.ok(!h.hooksOf('statusApplied').some((c) => c.target === out && c.status === 'stun'), `${label(f)}: none outside`);
+    h.run(t0.interval - 0.1);
+    assert.equal(glassOf(u), null, `${label(f)}: not yet`);
+    h.run(0.2);
+    assert.equal(glassOf(u)?.shield, 200, `${label(f)}: back after ${t0.interval} s`);
+    // a lethal hit: the burst still comes
+    const n0 = glassHits(h, u).length;
+    hurt(h, e, u, u.hp + 1000);
+    assert.equal(u.alive, false, `${label(f)}: knocked out`);
+    assert.equal(glassHits(h, u).length, n0 + 1, `${label(f)}: the lethal hit broke it`);
+    done(h);
+  }
+});
+
+test('T2 韬光: each damage instance she takes rolls 50 % for +1 SP (PLX-X stage 3: 75 %, +2) — one the 琉璃璧 absorbs whole too; a 流失 never', () => {
+  for (const f of FORMS_ALL) {
+    const [tier, elite, mod] = f;
+    const { h, u } = field({ tier, elite, mod, skill: 2, seed: 33 });
+    const x3 = elite && tier === 6 && mod === PLXX;
+    const t1 = u.def.raw.talents.find((t) => t.index === 1).bb;
+    assert.deepEqual([t1.prob, t1.sp], x3 ? [0.75, 2] : [0.5, 1], label(f));
+    const e = h.spawn('enemy_dummy', { pos: [10, 9] });
+    h.step();
+    const gains = () => h.hooksOf('spGain').filter((c) => c.unit === u && c.reason === 'talent');
+    const hp0 = u.hp;
+    for (let i = 0; i < 200; i++) { if (i % 10 === 0) u.skill.sp = 0; hurt(h, e, u, 50); }
+    assert.equal(u.hp, hp0, `${label(f)}: all absorbed`);
+    const absorbed = gains();
+    assert.ok(Math.abs(absorbed.length / 200 - t1.prob) < 0.12, `${label(f)}: absorbed hits roll too: ${absorbed.length} / 200 ≈ ${t1.prob * 100} %`);
+    assert.ok(absorbed.every((c) => c.amount === t1.sp), `${label(f)}: +${t1.sp} SP`);
+    hurt(h, e, u, 400);   // breaks it: 200 through
+    const n0 = gains().length;
+    for (let i = 0; i < 200; i++) { if (i % 10 === 0) u.skill.sp = 0; hurt(h, e, u, 1); }
+    const g = gains().slice(n0);
+    assert.ok(Math.abs(g.length / 200 - t1.prob) < 0.12, `${label(f)}: ${g.length} / 200 ≈ ${t1.prob * 100} %`);
+    const n1 = gains().length;
+    for (let i = 0; i < 50; i++) { u.skill.sp = 0; h.b.loseHp(u, 1, { source: e }); }
+    assert.equal(gains().length, n1, `${label(f)}: a 流失 rolls nothing`);
+    done(h);
+  }
+});
+
+test('PLX-Y “情与义” (stages 1 and 3): +3 % damage per enemy on her range, at most 5 (+15 %); none without it', () => {
+  for (const f of FORMS_ALL.filter(([, elite]) => elite)) {
+    const [tier, , mod] = f;
+    const plxy = mod === PLXY;
+    for (const n of [2, 7]) {
+      const { h, u } = field({ tier, elite: true, mod, skill: 0 });
+      if (plxy) assert.deepEqual(u.def.raw.talents.filter((t) => t.index === -1).map((t) => t.bb), [{ damage_scale: 0.03, max_valid_stack_cnt: 5 }], label(f));
+      const tiles = [[10, 6], [10, 7], [11, 5], [9, 5], [11, 4], [9, 4], [11, 6]].slice(0, n);
+      for (const p of tiles) h.spawn('enemy_dummy', { pos: p });
+      u.skill.gainSp(999);
+      h.runUntil(() => atkHits(h, u).length >= n, 5);
+      for (const c of atkHits(h, u).slice(0, n)) approx(c.amount, u.s.atk * (plxy ? 1 + 0.03 * Math.min(5, n) : 1), `${label(f)}: ${n} enemies`);
+      done(h);
+    }
+  }
+});
+
+test('the x-1 grid of the tests is her data range (from (10, 5) facing RIGHT)', () => {
+  const { h, u } = field({});
+  assert.deepEqual([...u.rangeKeys].sort((a, b) => a - b), X1.map(([r, c]) => r * 21 + c).sort((a, b) => a - b));
+  done(h);
+});
diff --git a/test/golden/diy.json b/test/golden/diy.json
index a7702438..0793c28c 100644
--- a/test/golden/diy.json
+++ b/test/golden/diy.json
@@ -1726,132 +1726,132 @@
       "snaps": "20b7fc37 08678156 135cc57c 89dbd854 b8ecd492 a19c7df4 24b1162b 55c5c742 28fd3c49 bfc80994 5c821609 77fc27bc 3f2ff411 6b8a048a 187c1e4b 9c39986d 0fa15a34 4ad95b9b 09abaf91 eb92a8c4 b64e626c"
     },
     "diy-043": {
-      "about": "5_diy1_a=cdfend 5_diy2_b=cdfend 5_diy1_a=cguard 5_diy2_b=cguard 6_diy1_b=bgsnow/S1/002_bgsnow 6_diy2_b=bgsnow/S2/002_bgsnow 6_diy1_b=bgsnow/S3/002_bgsnow 6_diy2_b=bgsnow/S1/003_bgsnow 6_diy1_b=bgsnow/S2/003_bgsnow 6_diy2_b=bgsnow/S3/003_bgsnow 5_diy1_a=csnipe 5_diy2_b=csnipe",
-      "fast": true,
+      "about": "6_diy1_b=bgsnow/S1/002_bgsnow 6_diy2_b=bgsnow/S2/002_bgsnow 6_diy1_b=bgsnow/S3/002_bgsnow 6_diy2_b=bgsnow/S1/003_bgsnow 6_diy1_b=bgsnow/S2/003_bgsnow 6_diy2_b=bgsnow/S3/003_bgsnow 5_diy1_a=ifrit/S1 5_diy2_a=ifrit/S2 5_diy1_a=ifrit/S3 5_diy2_b=ifrit/S1 5_diy1_b=ifrit/S2 5_diy2_b=ifrit/S3",
+      "fast": false,
       "kind": "normal",
       "stageId": "act2autochess_m03",
       "modeId": "mode_multi_normal",
       "round": 13,
       "seed": 1440042731,
       "waveId": "act1autochess_h06",
-      "time": 215.17,
-      "ticks": 6455,
+      "time": 212.63,
+      "ticks": 6379,
       "reason": "cleared",
-      "killed": 6,
+      "killed": 13,
       "total": 117,
       "unspawned": 0,
       "bossHpLeft": null,
-      "rngDraws": 194,
+      "rngDraws": 189,
       "errors": {"count":0,"kinds":[]},
-      "players": {"p1":{"killed":6,"total":117,"perfect":false,"leaks":111,"leaksUncounted":0,"coins":0,"dmg":700578,"bossDmg":0,"heal":0,"deaths":15,"layerGains":{}}},
+      "players": {"p1":{"killed":13,"total":117,"perfect":false,"leaks":104,"leaksUncounted":0,"coins":0,"dmg":790369,"bossDmg":0,"heal":0,"deaths":10,"layerGains":{}}},
       "units": [
-        ["p1",1,"op","chess_char_5_diy1_a",2,null,0,0,143,0,620,6384,0,33,1],
-        ["p1",2,"op","chess_char_5_diy2_b",2,"none",0,0,119,0,8344,5816,0,64,1],
-        ["p1",3,"op","chess_char_5_diy1_a",2,null,0,0,135,0,8794,7692,0,27,0],
-        ["p1",4,"op","chess_char_5_diy2_b",2,"none",0,0,139,1,12488,10002,0,31,1],
-        ["p1",5,"op","chess_char_6_diy1_b",0,"uniequip_002_bgsnow",1826,1,9,0,122692,0,0,122,1],
-        ["p1",6,"op","chess_char_6_diy2_b",1,"uniequip_002_bgsnow",1826,1,11,1,130874,0,0,138,20],
-        ["p1",7,"op","chess_char_6_diy1_b",2,"uniequip_002_bgsnow",1826,1,13,0,57438,0,0,74,3],
-        ["p1",8,"op","chess_char_6_diy2_b",0,"uniequip_003_bgsnow",1656,1,15,0,129749,0,0,122,1],
-        ["p1",9,"op","chess_char_6_diy1_b",1,"uniequip_003_bgsnow",1656,1,4,3,123659,0,0,136,21],
-        ["p1",10,"op","chess_char_6_diy2_b",2,"uniequip_003_bgsnow",1656,1,10,1,103257,0,0,148,3],
-        ["p1",11,"op","chess_char_5_diy1_a",2,null,1271,1,130,0,1630,2542,0,22,0],
-        ["p1",12,"op","chess_char_5_diy2_b",2,"none",1510,1,126,0,1035,3020,0,16,0],
+        ["p1",1,"op","chess_char_6_diy1_b",0,"uniequip_002_bgsnow",1826,1,8,1,112177,0,0,118,1],
+        ["p1",2,"op","chess_char_6_diy2_b",1,"uniequip_002_bgsnow",1826,1,11,2,135473,0,0,135,20],
+        ["p1",3,"op","chess_char_6_diy1_b",2,"uniequip_002_bgsnow",1826,1,13,1,119294,0,0,152,3],
+        ["p1",4,"op","chess_char_6_diy2_b",0,"uniequip_003_bgsnow",1656,1,15,0,135005,0,0,122,1],
+        ["p1",5,"op","chess_char_6_diy1_b",1,"uniequip_003_bgsnow",1656,1,4,4,129402,0,0,134,21],
+        ["p1",6,"op","chess_char_6_diy2_b",2,"uniequip_003_bgsnow",1656,1,9,4,119117,0,0,148,3],
+        ["p1",7,"op","chess_char_5_diy1_a",0,null,0,0,99,0,1285,2552,0,4,0],
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