BUG - AI - Fatal Error: Combat Stall

`FATAL 2025-06-05 09:40:34,164 GameWorker system error [cee160c4-93d2-4c8b-b89e-79d5f85ddc09 - Commander Free For All; T32.FCD; active: Computer 3; stack: 0]: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0 =>[GAME cee160c4-93d2-4c8b-b89e-79d5f85ddc09] GameWorker.call
java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
at java.util.ArrayList.rangeCheck(ArrayList.java:657)
at java.util.ArrayList.get(ArrayList.java:433)
at mage.game.combat.CombatGroup.attackerDamage(CombatGroup.java:483)
at mage.game.combat.CombatGroup.assignDamageToAttackers(CombatGroup.java:198)
at mage.game.turn.CombatDamageStep.beginStep(CombatDamageStep.java:60)
at mage.game.turn.Phase.prePriority(Phase.java:189)
at mage.game.turn.Phase.playStep(Phase.java:203)
at mage.game.turn.Phase.play(Phase.java:91)
at mage.game.turn.Turn.play(Turn.java:129)
at mage.game.GameImpl.playTurn(GameImpl.java:1157)
at mage.game.GameImpl.play(GameImpl.java:1064)
at mage.game.GameImpl.start(GameImpl.java:1040)
at mage.server.game.GameWorker.call(GameWorker.java:35)
at mage.server.game.GameWorker.call(GameWorker.java:16)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)`

[Image](https://puu.sh/KuP1b/be8be8f5e0.jpg)

Computer 3 swung with board and two [[Dragonhawk, Fate's Tempest]]
Rograkh blocked both with [[Dead-Iron Sledge]] and [[Vanguard's Shield]], destroying both Dragonhawks.

AI proceeded to detonate.

Start in mage/game/combat/CombatGroup.java at attackerDamage (line 483) and assignDamageToAttackers (line 198), then follow the CombatDamageStep call at mage/game/turn/CombatDamageStep.java:60. Reproduce the reported block involving two Dragonhawks and two equipment cards, and verify that the combat sequence completes without the IndexOutOfBoundsException.

Written by the indexing model from the issue text.