Rev 24: a REFLECTION against a permanent curse afflicts both wizards

"If this spell is REFLECTed, both players take 1/2 point of damage per
space moved" (WALKING DEAD); "In case of REFLECTION, both players are
affected" (IDIOT); SLOW DEATH follows REFLECTION's own rule that a
spell works for both parties. A permanent curse has no duration for
the reflection's split to halve, so the caster went untouched; the
curse is now laid on them as well, as if cast back. Older games replay
as they were; PRPM, reflected at seq 108 with no move since, was
re-stamped to 24 at its table's request.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Jm2auWk6RP71CjaAb4FMoG

packages/engine/src/game.ts

@@ -247,7 +247,7 @@ export interface CastParams {
 }
 
 /** The revision new games are dealt under; GameConfig.deckRev pins it per game. */
-export const CURRENT_RULES_REV = 23;
+export const CURRENT_RULES_REV = 24;
 
 /** Every rulings revision since the baseline, newest last — the entries a
  * game's deckRev freezes it before or after. Shown to players as the house
@@ -275,6 +275,7 @@ export const RULES_REVISIONS: { rev: number; note: string }[] = [
   { rev: 21, note: "Two cards keep their whole promise. LIFESAVER's holder is not eliminated for losing both treasures. FORCE FIELD, after stopping the spell, stands until the end of the opponent's turn: they may not enter its caster's square, nor cast on or past them — on every side, where the card says one." },
   { rev: 22, note: "TELEPORT ignores the maze's outer edge as it ignores any wall: a teleporter leaving the maze at any square's edge re-enters at the opposite edge on the same line, one space on. Older games crossed the edge only at the lettered openings." },
   { rev: 23, note: "POWER DRAIN drains the number played: the caster gains it whether the blow is BLUNTed or ABSORBed (FAQ: the counter blunts the damage done, not the drain), and a wall drained for its points gives them up too. Older games gave the caster only what the opponent lost, and nothing from a wall." },
+  { rev: 24, note: "A REFLECTION against a permanent curse afflicts both wizards: WALKING DEAD and IDIOT say so on the card, and SLOW DEATH follows REFLECTION's own rule that a spell works for both parties. Older games left the caster untouched." },
 ];
 
 export interface GameConfig {
@@ -6610,6 +6611,23 @@ function resolveStack(state: GameState, events: GameEvent[]): void {
     redirected: pipe.redirected,
   });
 
+  // Rev 24: "If this spell is REFLECTed, both players take 1/2 point of
+  // damage per space moved" (WALKING DEAD); "In case of REFLECTION, both
+  // players are affected" (IDIOT). A permanent curse has no duration for
+  // REFLECTION's split to halve, so the curse is laid on the caster as
+  // well, as if the defender had cast it back.
+  const curseShared = effect?.permanentCurse === true && (state.config.deckRev ?? 1) >= 24 &&
+    !pipe.redirected && !pipe.fullyStopped && !stack.reflectedBase && !stack.trapped && attacker.alive &&
+    stack.counters.some((c) => !c.nullified && c.card.cardId === "reflection");
+  if (effect?.onResolved && curseShared) {
+    effect.onResolved({
+      state, events,
+      attacker: defender, defender: attacker,
+      origin: defender.position,
+      damageDealt: 0, fullyStopped: false, reversed: pipe.reversed, duration: pipe.duration,
+      stack,
+    });
+  }
   if (effect?.onResolved && !pipe.redirected) {
     effect.onResolved({
       state,

packages/engine/test/casting.test.ts

@@ -1394,3 +1394,28 @@ describe("disease makes the caster the carrier (rev 7)", () => {
     throw new Error("no adjacent step for the return walk");
   });
 });
+
+describe("a REFLECTION against a permanent curse afflicts both (rev 24)", () => {
+  const cursed = (s: GameState, id: string) => s.sustained.some((e) => e.cardId === "walking-dead" && e.targetId === id);
+  const play = (deckRev: number) => {
+    let { state } = createGame({ playerIds: ["alice", "bob"], seed: 42, sets: ["basic"], deckRev });
+    state = toRound2(state);
+    const { attacker, defender } = faceOff(state);
+    const wd = giveCard(state, attacker, "walking-dead");
+    state.players.find((p) => p.id === defender)!.hand[0] = { instanceId: "reflection#T", cardId: "reflection" };
+    state = must(state, attacker, { type: "cast", instanceId: wd.instanceId, target: { kind: "player", playerId: defender } });
+    state = must(state, defender, { type: "counteract", instanceId: "reflection#T" });
+    state = drain(state);
+    return { state, attacker, defender };
+  };
+  it("lays WALKING DEAD on the caster too", () => {
+    const { state, attacker, defender } = play(24);
+    expect(cursed(state, defender)).toBe(true);
+    expect(cursed(state, attacker)).toBe(true);
+  });
+  it("older games left the caster untouched", () => {
+    const { state, attacker, defender } = play(23);
+    expect(cursed(state, defender)).toBe(true);
+    expect(cursed(state, attacker)).toBe(false);
+  });
+});