diff --git a/src/main/java/forge/game/ai/ComputerUtilCombat.java b/src/main/java/forge/game/ai/ComputerUtilCombat.java
index 0336bd2dc80..3e06bcdf7c0 100644
--- a/src/main/java/forge/game/ai/ComputerUtilCombat.java
+++ b/src/main/java/forge/game/ai/ComputerUtilCombat.java
@@ -1399,6 +1399,9 @@ public class ComputerUtilCombat {
         if (checkDestroyAttackerTrigger(attacker, defender) && !attacker.hasKeyword("Indestructible")) {
             return true;
         }
+        if (attacker.hasKeyword("PreventAllDamageBy Creature.blockingSource")) {
+            return false;
+        }
 
         int defenderDamage = defender.getNetAttack()
                 + ComputerUtilCombat.predictPowerBonusOfBlocker(attacker, defender, withoutAbilities);