diff --git a/src/magic/card/Havoc_Demon.java b/release/Magarena/scripts/Havoc_Demon.groovy
similarity index 63%
rename from src/magic/card/Havoc_Demon.java
rename to release/Magarena/scripts/Havoc_Demon.groovy
index 75bc453303..1a9aeb7841 100644
--- a/src/magic/card/Havoc_Demon.java
+++ b/release/Magarena/scripts/Havoc_Demon.groovy
@@ -1,17 +1,5 @@
-package magic.card;
-
-import magic.model.MagicGame;
-import magic.model.MagicPermanent;
-import magic.model.action.MagicChangeTurnPTAction;
-import magic.model.event.MagicEvent;
-import magic.model.target.MagicTarget;
-import magic.model.target.MagicTargetFilter;
-import magic.model.trigger.MagicWhenDiesTrigger;
-
-import java.util.Collection;
-
-public class Havoc_Demon {
-    public static final MagicWhenDiesTrigger T = new MagicWhenDiesTrigger() {
+[
+    new MagicWhenDiesTrigger() {
         @Override
         public MagicEvent getEvent(final MagicPermanent permanent) {
             return new MagicEvent(
@@ -32,5 +20,5 @@ public class Havoc_Demon {
                 game.doAction(new MagicChangeTurnPTAction(target,-5,-5));
             }
         }
-    };
-}
+    }
+]
diff --git a/release/Magarena/scripts/Havoc_Demon.txt b/release/Magarena/scripts/Havoc_Demon.txt
index 6a26f63e3f..b1ce3e8acd 100644
--- a/release/Magarena/scripts/Havoc_Demon.txt
+++ b/release/Magarena/scripts/Havoc_Demon.txt
@@ -9,4 +9,4 @@ cost={5}{B}{B}
 pt=5/5
 ability=flying
 timing=main
-requires_card_code
+requires_groovy_code