diff --git a/res/cardsfolder/m/mass_mutiny.txt b/res/cardsfolder/m/mass_mutiny.txt
index 3ca8925f3a6..8a204e33e2e 100644
--- a/res/cardsfolder/m/mass_mutiny.txt
+++ b/res/cardsfolder/m/mass_mutiny.txt
@@ -2,7 +2,8 @@ Name:Mass Mutiny
 ManaCost:3 R R
 Types:Sorcery
 Text:no text
-A:SP$ GainControl | Cost$ 3 R R | ValidTgts$ Creature.OppCtrl | TgtPrompt$ Select target creature opponent controls. | LoseControl$ EOT | Untap$ True | AddKWs$ Haste | SpellDescription$ For each opponent, gain control of up to one target creature that player controls until end of turn. Untap those creatures. They gain haste until end of turn.
+A:SP$ GainControl | Cost$ 3 R R | ValidTgts$ Creature.OppCtrl | TgtPrompt$ Select target creature an opponent controls to gain control of. | TargetMin$ 0 | TargetMax$ OneEach | References$ OneEach | TargetsWithDifferentControllers$ True | LoseControl$ EOT | Untap$ True | AddKWs$ Haste | SpellDescription$ For each opponent, gain control of up to one target creature that player controls until end of turn. Untap those creatures. They gain haste until end of turn.
+SVar:OneEach:PlayerCountOpponents$Amount
 SVar:Rarity:Rare
 SVar:Picture:http://www.wizards.com/global/images/magic/general/mass_mutiny.jpg
 SetInfo:PC2|Rare|http://magiccards.info/scans/en/pc2/48.jpg
diff --git a/src/main/java/forge/CardLists.java b/src/main/java/forge/CardLists.java
index b6cb635aea8..2d4b3eace17 100644
--- a/src/main/java/forge/CardLists.java
+++ b/src/main/java/forge/CardLists.java
@@ -275,6 +275,9 @@ public class CardLists {
         return CardLists.filter(cardList, CardPredicates.isController(player));
     }
 
+    public static List<Card> filterControlledBy(Iterable<Card> cardList, List<Player> player) {
+        return CardLists.filter(cardList, CardPredicates.hasListController(player));
+    }
 
     public static List<Card> getValidCards(Iterable<Card> cardList, String[] restrictions, Player sourceController, Card source) {
         return CardLists.filter(cardList, CardPredicates.restriction(restrictions, sourceController, source));
diff --git a/src/main/java/forge/CardPredicates.java b/src/main/java/forge/CardPredicates.java
index 837bc084247..0a2d27c0ac7 100644
--- a/src/main/java/forge/CardPredicates.java
+++ b/src/main/java/forge/CardPredicates.java
@@ -17,6 +17,8 @@
  */
 package forge;
 
+import java.util.List;
+
 import com.google.common.base.Function;
 import com.google.common.base.Predicate;
 import com.google.common.collect.Iterables;
@@ -47,6 +49,14 @@ public final class CardPredicates {
             }
         };
     }
+    public static final Predicate<Card> hasListController(final List<Player> pList) {
+        return new Predicate<Card>() {
+            @Override
+            public boolean apply(final Card c) {
+                return pList.contains((Player) c.getController());
+            }
+        };
+    }
     public static final Predicate<Card> isOwner(final Player p) {
         return new Predicate<Card>() {
             @Override
diff --git a/src/main/java/forge/card/abilityfactory/AbilityFactory.java b/src/main/java/forge/card/abilityfactory/AbilityFactory.java
index 664b4c9678d..ceb8bdc2fff 100644
--- a/src/main/java/forge/card/abilityfactory/AbilityFactory.java
+++ b/src/main/java/forge/card/abilityfactory/AbilityFactory.java
@@ -212,6 +212,9 @@ public class AbilityFactory {
             if (mapParams.containsKey("TargetsWithDefinedController")) {
                 abTgt.setDefinedController(mapParams.get("TargetsWithDefinedController"));
             }
+            if (mapParams.containsKey("TargetsWithDifferentControllers")) {
+                abTgt.setDifferentControllers(true);
+            }
         }
 
         // ***********************************
diff --git a/src/main/java/forge/card/cardfactory/CardFactoryUtil.java b/src/main/java/forge/card/cardfactory/CardFactoryUtil.java
index 56a5377f01e..f372b629e84 100644
--- a/src/main/java/forge/card/cardfactory/CardFactoryUtil.java
+++ b/src/main/java/forge/card/cardfactory/CardFactoryUtil.java
@@ -1795,8 +1795,7 @@ public class CardFactoryUtil {
             return CardFactoryUtil.doXMath(n, m, source);
         }
 
-     // count valid cards in any specified zone/s
-        System.out.println("Passed string: " + s);
+        // count valid cards in any specified zone/s
         if (l[0].startsWith("Valid") && !l[0].contains("Valid ")) {
             String[] lparts = l[0].split(" ", 2);
             final List<ZoneType> vZone = ZoneType.listValueOf(lparts[0].split("Valid")[1]);
diff --git a/src/main/java/forge/card/spellability/Target.java b/src/main/java/forge/card/spellability/Target.java
index c0afa57f919..265af2ebd75 100644
--- a/src/main/java/forge/card/spellability/Target.java
+++ b/src/main/java/forge/card/spellability/Target.java
@@ -45,6 +45,7 @@ public class Target {
     private boolean uniqueTargets = false;
     private boolean singleZone = false;
     private boolean differentZone = false;
+    private boolean differentControllers = false;
     private boolean withoutSameCreatureType = false;
     private String definedController = null;
     private TargetChoices choice = null;
@@ -811,6 +812,20 @@ public class Target {
         this.differentZone = different;
     }
 
+    /**
+     * @return the differentControllers
+     */
+    public boolean isDifferentControllers() {
+        return differentControllers;
+    }
+
+    /**
+     * @param different the differentControllers to set
+     */
+    public void setDifferentControllers(boolean different) {
+        this.differentControllers = different;
+    }
+
     /**
      * @return the definedController
      */
diff --git a/src/main/java/forge/card/spellability/TargetSelection.java b/src/main/java/forge/card/spellability/TargetSelection.java
index 17ec95f1306..4d0c0edeee7 100644
--- a/src/main/java/forge/card/spellability/TargetSelection.java
+++ b/src/main/java/forge/card/spellability/TargetSelection.java
@@ -295,6 +295,14 @@ public class TargetSelection {
         if (tgt.isDifferentZone() && !targeted.isEmpty()) {
             choices = CardLists.filterControlledBy(choices, targeted.get(0).getController().getOpponent());
         }
+        // If all cards must have different controllers
+        if (tgt.isDifferentControllers() && !targeted.isEmpty()) {
+            final List<Player> availableControllers = new ArrayList<Player>(Singletons.getModel().getGame().getPlayers());
+            for (int i = 0; i < targeted.size(); i++) {
+                availableControllers.remove(targeted.get(i).getController());
+            }
+            choices = CardLists.filterControlledBy(choices, availableControllers);
+        }
         // If the cards can't share a creature type
         if (tgt.isWithoutSameCreatureType() && !targeted.isEmpty()) {
             final Card card = targeted.get(0);