Reversed, Walking Dead heals half a point per step (rules rev 11)

The same FAQ turn as Slow Death's: a REVERSE riding the cast attaches
the curse backward, and every second space walked gains the point the
bite would have taken. Older ledgers attached it biting and replay so.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015RCWSTnb1KYTPyL4GmhGnF

packages/engine/test/stones.test.ts

@@ -170,6 +170,32 @@ describe("slow death", () => {
     expect(state.players.find((p) => p.id === defender)!.life).toBe(17);
   });
 
+  it("a reversed walking dead heals half a point per space walked (rev 11)", () => {
+    let { state } = newGame();
+    state = toRound2(state);
+    const { attacker, defender } = faceOff(state);
+    const wd = giveCard(state, attacker, "walking-dead");
+    giveCard(state, defender, "reverse", "RV", 0);
+    const r = applyCommand(state, attacker, {
+      type: "cast", instanceId: wd.instanceId, target: { kind: "player", playerId: defender },
+    });
+    if (!r.ok) throw new Error(r.error);
+    state = must(r.state, defender, { type: "counteract", instanceId: "reverse#RV" });
+    state = drain(state);
+    expect(sustainedOn(state, defender, "walking-dead").length).toBe(1);
+
+    state = must(state, attacker, { type: "endTurn", draw: 0 });
+    // Two spaces walked: one point gained, not bled.
+    let steps = 0;
+    for (const dir of ["N", "S", "E", "W", "N", "S", "E", "W"] as const) {
+      if (steps >= 2) break;
+      const mv = applyCommand(state, defender, { type: "move", direction: dir });
+      if (mv.ok) { state = mv.state; steps++; }
+    }
+    expect(steps).toBe(2);
+    expect(state.players.find((p) => p.id === defender)!.life).toBe(16);
+  });
+
   it("a full reflection returns the curse onto its caster (rev 11)", () => {
     let { state } = newGame();
     state = toRound2(state);