From de3f7cbbfbd386db30c02fda22ed730ba030388e Mon Sep 17 00:00:00 2001
From: "Alex W. Jackson" <alex.w.jackson@gmail.com>
Date: Mon, 31 Jan 2022 16:55:58 -0500
Subject: [PATCH] Fix #6671

---
 Mage/src/main/java/mage/abilities/AbilityImpl.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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()) {