diff --git a/Mage.Sets/src/mage/sets/commander/WreckingBall.java b/Mage.Sets/src/mage/sets/commander/WreckingBall.java
new file mode 100644
index 0000000000..7d250a1f52
--- /dev/null
+++ b/Mage.Sets/src/mage/sets/commander/WreckingBall.java
@@ -0,0 +1,71 @@
+/*
+ *  Copyright 2010 BetaSteward_at_googlemail.com. All rights reserved.
+ *
+ *  Redistribution and use in source and binary forms, with or without modification, are
+ *  permitted provided that the following conditions are met:
+ *
+ *     1. Redistributions of source code must retain the above copyright notice, this list of
+ *        conditions and the following disclaimer.
+ *
+ *     2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *        of conditions and the following disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ *  THIS SOFTWARE IS PROVIDED BY BetaSteward_at_googlemail.com ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ *  FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BetaSteward_at_googlemail.com OR
+ *  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ *  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ *  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  The views and conclusions contained in the software and documentation are those of the
+ *  authors and should not be interpreted as representing official policies, either expressed
+ *  or implied, of BetaSteward_at_googlemail.com.
+ */
+package mage.sets.commander;
+
+import java.util.UUID;
+import mage.abilities.effects.common.DestroyTargetEffect;
+import mage.cards.CardImpl;
+import mage.constants.CardType;
+import mage.constants.Rarity;
+import mage.filter.FilterPermanent;
+import mage.filter.predicate.Predicates;
+import mage.filter.predicate.mageobject.CardTypePredicate;
+import mage.target.Target;
+import mage.target.TargetPermanent;
+
+/**
+ *
+ * @author JotaPeRL
+
+ */
+public class WreckingBall extends CardImpl {
+    
+    private static final FilterPermanent filter = new FilterPermanent("creature or land");
+    static {
+        filter.add(Predicates.or(new CardTypePredicate(CardType.CREATURE), new CardTypePredicate(CardType.LAND)));
+    }
+
+    public WreckingBall(UUID ownerId) {
+        super(ownerId, 238, "Wrecking Ball", Rarity.COMMON, new CardType[]{CardType.INSTANT}, "{2}{B}{R}");
+        this.expansionSetCode = "CMD";
+
+        // Destroy target creature or land.
+        this.getSpellAbility().addEffect(new DestroyTargetEffect());
+        Target target = new TargetPermanent(filter);
+        this.getSpellAbility().addTarget(target);
+    }
+
+    public WreckingBall(final WreckingBall card) {
+        super(card);
+    }
+
+    @Override
+    public WreckingBall copy() {
+        return new WreckingBall(this);
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/dissension/WreckingBall.java b/Mage.Sets/src/mage/sets/dissension/WreckingBall.java
new file mode 100644
index 0000000000..693fccd626
--- /dev/null
+++ b/Mage.Sets/src/mage/sets/dissension/WreckingBall.java
@@ -0,0 +1,53 @@
+/*
+ *  Copyright 2010 BetaSteward_at_googlemail.com. All rights reserved.
+ *
+ *  Redistribution and use in source and binary forms, with or without modification, are
+ *  permitted provided that the following conditions are met:
+ *
+ *     1. Redistributions of source code must retain the above copyright notice, this list of
+ *        conditions and the following disclaimer.
+ *
+ *     2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *        of conditions and the following disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ *  THIS SOFTWARE IS PROVIDED BY BetaSteward_at_googlemail.com ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ *  FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BetaSteward_at_googlemail.com OR
+ *  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ *  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ *  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  The views and conclusions contained in the software and documentation are those of the
+ *  authors and should not be interpreted as representing official policies, either expressed
+ *  or implied, of BetaSteward_at_googlemail.com.
+ */
+package mage.sets.dissension;
+
+import java.util.UUID;
+
+/**
+ *
+ * @author JotaPeRL
+
+ */
+public class WreckingBall extends mage.sets.commander.WreckingBall {
+
+    public WreckingBall(UUID ownerId) {
+        super(ownerId);
+        this.cardNumber = 139;
+        this.expansionSetCode = "DIS";
+    }
+
+    public WreckingBall(final WreckingBall card) {
+        super(card);
+    }
+
+    @Override
+    public WreckingBall copy() {
+        return new WreckingBall(this);
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/dragonsoftarkir/DragonlordsPrerogative.java b/Mage.Sets/src/mage/sets/dragonsoftarkir/DragonlordsPrerogative.java
new file mode 100644
index 0000000000..42dc56ae9f
--- /dev/null
+++ b/Mage.Sets/src/mage/sets/dragonsoftarkir/DragonlordsPrerogative.java
@@ -0,0 +1,114 @@
+/*
+ *  Copyright 2010 BetaSteward_at_googlemail.com. All rights reserved.
+ *
+ *  Redistribution and use in source and binary forms, with or without modification, are
+ *  permitted provided that the following conditions are met:
+ *
+ *     1. Redistributions of source code must retain the above copyright notice, this list of
+ *        conditions and the following disclaimer.
+ *
+ *     2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *        of conditions and the following disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ *  THIS SOFTWARE IS PROVIDED BY BetaSteward_at_googlemail.com ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ *  FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BetaSteward_at_googlemail.com OR
+ *  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ *  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ *  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  The views and conclusions contained in the software and documentation are those of the
+ *  authors and should not be interpreted as representing official policies, either expressed
+ *  or implied, of BetaSteward_at_googlemail.com.
+ */
+package mage.sets.dragonsoftarkir;
+
+import java.util.UUID;
+import mage.abilities.Ability;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.condition.Condition;
+import mage.abilities.costs.common.RevealTargetFromHandCost;
+import mage.abilities.decorator.ConditionalContinuousRuleModifyingEffect;
+import mage.abilities.effects.ContinuousRuleModifyingEffect;
+import mage.abilities.effects.common.CantBeCounteredSourceEffect;
+import mage.abilities.effects.common.DrawCardSourceControllerEffect;
+import mage.cards.CardImpl;
+import mage.constants.CardType;
+import mage.constants.Rarity;
+import mage.constants.Zone;
+import mage.filter.FilterCard;
+import mage.filter.common.FilterControlledPermanent;
+import mage.filter.predicate.mageobject.SubtypePredicate;
+import mage.game.Game;
+import mage.game.stack.Spell;
+import mage.target.common.TargetCardInHand;
+
+/**
+ *
+ * @author jeffwadsworth
+ */
+public class DragonlordsPrerogative extends CardImpl {
+
+    private static final FilterCard filter = new FilterCard("a Dragon card from your hand");
+
+    static {
+        filter.add(new SubtypePredicate("Dragon"));
+    }
+
+    public DragonlordsPrerogative(UUID ownerId) {
+        super(ownerId, 52, "Dragonlord's Prerogative", Rarity.RARE, new CardType[]{CardType.INSTANT}, "{4}{U}{U}");
+        this.expansionSetCode = "DTK";
+
+        // As an additional cost to cast Dragonlord's Prerogative, you may reveal a Dragon card from your hand.
+        // If you revealed a Dragon card or controlled a Dragon as you cast Dragonlord's Prerogative, Dragonlord's Prerogative can't be countered.
+        // Draw four cards.
+        
+        this.getSpellAbility().addCost(new RevealTargetFromHandCost(new TargetCardInHand(0, 1, filter)));
+        Condition condition = new DragonlordsPrerogativeCondition();
+        ContinuousRuleModifyingEffect cantBeCountered = new CantBeCounteredSourceEffect();
+        ConditionalContinuousRuleModifyingEffect conditionalCantBeCountered = new ConditionalContinuousRuleModifyingEffect(cantBeCountered, condition);
+        conditionalCantBeCountered.setText("If you revealed a Dragon card or controlled a Dragon as you cast {this}, {this} can't be countered");
+        Ability ability = new SimpleStaticAbility(Zone.STACK, conditionalCantBeCountered);
+        this.addAbility(ability);
+        this.getSpellAbility().addEffect(new DrawCardSourceControllerEffect(4));
+
+    }
+
+    public DragonlordsPrerogative(final DragonlordsPrerogative card) {
+        super(card);
+    }
+
+    @Override
+    public DragonlordsPrerogative copy() {
+        return new DragonlordsPrerogative(this);
+    }
+}
+
+class DragonlordsPrerogativeCondition implements Condition {
+
+    private final static FilterControlledPermanent filter = new FilterControlledPermanent("Dragon");
+
+    static {
+        filter.add(new SubtypePredicate("Dragon"));
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        boolean applies = false;
+        Spell spell = game.getStack().getSpell(source.getSourceId());
+        if (spell != null) {
+            RevealTargetFromHandCost cost = (RevealTargetFromHandCost) spell.getSpellAbility().getCosts().get(0);
+            if (cost != null) {
+                applies = !cost.getTargets().isEmpty();
+            }
+        }
+        if (!applies) {
+            applies = game.getBattlefield().countAll(filter, source.getControllerId(), game) > 0;
+        }
+        return applies;
+    }
+}
diff --git a/Mage/src/mage/abilities/costs/common/RevealTargetFromHandCost.java b/Mage/src/mage/abilities/costs/common/RevealTargetFromHandCost.java
index 3226e4b272..e97ad38c71 100644
--- a/Mage/src/mage/abilities/costs/common/RevealTargetFromHandCost.java
+++ b/Mage/src/mage/abilities/costs/common/RevealTargetFromHandCost.java
@@ -1,34 +1,31 @@
 /*
-* Copyright 2010 BetaSteward_at_googlemail.com. All rights reserved.
-*
-* Redistribution and use in source and binary forms, with or without modification, are
-* permitted provided that the following conditions are met:
-*
-*    1. Redistributions of source code must retain the above copyright notice, this list of
-*       conditions and the following disclaimer.
-*
-*    2. Redistributions in binary form must reproduce the above copyright notice, this list
-*       of conditions and the following disclaimer in the documentation and/or other materials
-*       provided with the distribution.
-*
-* THIS SOFTWARE IS PROVIDED BY BetaSteward_at_googlemail.com ``AS IS'' AND ANY EXPRESS OR IMPLIED
-* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BetaSteward_at_googlemail.com OR
-* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
-* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*
-* The views and conclusions contained in the software and documentation are those of the
-* authors and should not be interpreted as representing official policies, either expressed
-* or implied, of BetaSteward_at_googlemail.com.
-*/
-
-// author jeff
-
-
+ * Copyright 2010 BetaSteward_at_googlemail.com. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY BetaSteward_at_googlemail.com ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BetaSteward_at_googlemail.com OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of BetaSteward_at_googlemail.com.
+ */
+// author jeffwadsworth
 package mage.abilities.costs.common;
 
 import java.util.UUID;
@@ -43,21 +40,21 @@ import mage.players.Player;
 import mage.target.common.TargetCardInHand;
 
 public class RevealTargetFromHandCost extends CostImpl {
-   
+
     public int convertedManaCosts = 0;
     protected int numberCardsRevealed = 0;
-   
+
     public RevealTargetFromHandCost(TargetCardInHand target) {
         this.addTarget(target);
         this.text = "reveal " + target.getTargetName();
     }
-   
+
     public RevealTargetFromHandCost(RevealTargetFromHandCost cost) {
         super(cost);
         this.convertedManaCosts = cost.convertedManaCosts;
         this.numberCardsRevealed = cost.numberCardsRevealed;
     }
-   
+
     @Override
     public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana) {
         if (targets.choose(Outcome.Benefit, controllerId, sourceId, game)) {
@@ -65,29 +62,33 @@ public class RevealTargetFromHandCost extends CostImpl {
             numberCardsRevealed = 0;
             Player player = game.getPlayer(controllerId);
             Cards cards = new CardsImpl();
-            for (UUID targetId: targets.get(0).getTargets()) {
+            for (UUID targetId : targets.get(0).getTargets()) {
                 Card card = player.getHand().get(targetId, game);
-                if (card == null)
-                    return false;
-                convertedManaCosts += card.getManaCost().convertedManaCost();
-                numberCardsRevealed++;
-                cards.add(card);                
+                if (card != null) {
+                    convertedManaCosts += card.getManaCost().convertedManaCost();
+                    numberCardsRevealed++;
+                    cards.add(card);
+                }
+                player.revealCards("card cost", cards, game);
                 paid = true;
+                return paid;
+            }
+            if (!paid && targets.get(0).getNumberOfTargets() == 0) {
+                paid = true; // e.g. for optional additional costs.  example: Dragonlord's Prerogative
+                return paid;
             }
-            player.revealCards("card cost", cards, game); // this is not a boolean
-            return paid;
         }
         paid = false;
         return paid;
     }
-   
+
     public int getConvertedCosts() {
-            return convertedManaCosts;
-        }
+        return convertedManaCosts;
+    }
 
     public int getNumberRevealedCards() {
-            return numberCardsRevealed;
-        }
+        return numberCardsRevealed;
+    }
 
     @Override
     public boolean canPay(Ability ability, UUID sourceId, UUID controllerId, Game game) {