diff --git a/Mage/src/main/java/mage/abilities/AbilityImpl.java b/Mage/src/main/java/mage/abilities/AbilityImpl.java
index f65ede100e3..2fe0359df17 100644
--- a/Mage/src/main/java/mage/abilities/AbilityImpl.java
+++ b/Mage/src/main/java/mage/abilities/AbilityImpl.java
@@ -102,7 +102,7 @@ public abstract class AbilityImpl implements Ability {
         this.zone = ability.zone;
         this.name = ability.name;
         this.usesStack = ability.usesStack;
-        this.manaCosts = ability.manaCosts;
+        this.manaCosts = ability.manaCosts.copy();
         this.manaCostsToPay = ability.manaCostsToPay.copy();
         this.costs = ability.costs.copy();
         for (Watcher watcher : ability.getWatchers()) {