diff --git a/Mage.Sets/src/mage/cards/c/CommonCause.java b/Mage.Sets/src/mage/cards/c/CommonCause.java
new file mode 100644
index 0000000000..ed85ca4dd5
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/c/CommonCause.java
@@ -0,0 +1,92 @@
+/*
+ *  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.cards.c;
+
+import java.util.UUID;
+import mage.ObjectColor;
+import mage.abilities.Ability;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.condition.Condition;
+import mage.abilities.decorator.ConditionalContinuousEffect;
+import mage.abilities.effects.common.continuous.BoostAllEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Duration;
+import mage.constants.Zone;
+import mage.filter.common.FilterCreaturePermanent;
+import mage.filter.predicate.Predicates;
+import mage.filter.predicate.mageobject.CardTypePredicate;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+
+/**
+ *
+ * @author TheElk801
+ */
+public class CommonCause extends CardImpl {
+
+    private static final FilterCreaturePermanent filter = new FilterCreaturePermanent("Nonartifact creatures");
+
+    static {
+        filter.add(Predicates.not(new CardTypePredicate(CardType.ARTIFACT)));
+    }
+
+    public CommonCause(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT}, "{2}{W}");
+
+        // Nonartifact creatures get +2/+2 as long as they all share a color.
+        this.addAbility(new SimpleStaticAbility(Zone.BATTLEFIELD, new ConditionalContinuousEffect(new BoostAllEffect(2, 2, Duration.WhileOnBattlefield, filter, false),
+                new AllColorCondition(),
+                "nonartifact creatures get +2/+2 as long as they all share a color.")));
+    }
+
+    public CommonCause(final CommonCause card) {
+        super(card);
+    }
+
+    @Override
+    public CommonCause copy() {
+        return new CommonCause(this);
+    }
+}
+
+class AllColorCondition implements Condition {
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        FilterCreaturePermanent filter = new FilterCreaturePermanent("Nonartifact creatures");
+        filter.add(Predicates.not(new CardTypePredicate(CardType.ARTIFACT)));
+//        Permanent permanent = game.getBattlefield().getPermanent(source.getSourceId());
+        ObjectColor allColor = new ObjectColor("WUBRG");
+        for (Permanent thing : game.getBattlefield().getAllActivePermanents(filter, game)) {
+             allColor = allColor.intersection(thing.getColor(game));
+        }
+        return !allColor.isColorless();
+    }
+}
diff --git a/Mage.Sets/src/mage/cards/s/SecondSight.java b/Mage.Sets/src/mage/cards/s/SecondSight.java
index 7072618f1b..4605a50952 100644
--- a/Mage.Sets/src/mage/cards/s/SecondSight.java
+++ b/Mage.Sets/src/mage/cards/s/SecondSight.java
@@ -119,7 +119,7 @@ class SecondSightEffect extends OneShotEffect {
             }
         }
 
-        you.lookAtCards("Portent", cards, game);
+        you.lookAtCards("Second Sight", cards, game);
 
         TargetCard target = new TargetCard(Zone.LIBRARY, new FilterCard("card to put on the top of target player's library"));
         while (player.canRespond() && cards.size() > 1) {
diff --git a/Mage.Sets/src/mage/sets/MercadianMasques.java b/Mage.Sets/src/mage/sets/MercadianMasques.java
index bca03b6c04..d1f83f78c8 100644
--- a/Mage.Sets/src/mage/sets/MercadianMasques.java
+++ b/Mage.Sets/src/mage/sets/MercadianMasques.java
@@ -97,6 +97,7 @@ public class MercadianMasques extends ExpansionSet {
         cards.add(new SetCardInfo("Cloud Sprite", 67, Rarity.COMMON, mage.cards.c.CloudSprite.class));
         cards.add(new SetCardInfo("Coastal Piracy", 68, Rarity.UNCOMMON, mage.cards.c.CoastalPiracy.class));
         cards.add(new SetCardInfo("Collective Unconscious", 236, Rarity.RARE, mage.cards.c.CollectiveUnconscious.class));
+        cards.add(new SetCardInfo("Common Cause", 13, Rarity.RARE, mage.cards.c.CommonCause.class));
         cards.add(new SetCardInfo("Conspiracy", 127, Rarity.RARE, mage.cards.c.Conspiracy.class));
         cards.add(new SetCardInfo("Corrupt Official", 128, Rarity.RARE, mage.cards.c.CorruptOfficial.class));
         cards.add(new SetCardInfo("Counterspell", 69, Rarity.COMMON, mage.cards.c.Counterspell.class));
diff --git a/Mage/src/main/java/mage/ObjectColor.java b/Mage/src/main/java/mage/ObjectColor.java
index c0f019be4a..594a5977c7 100644
--- a/Mage/src/main/java/mage/ObjectColor.java
+++ b/Mage/src/main/java/mage/ObjectColor.java
@@ -99,6 +99,23 @@ public class ObjectColor implements Serializable, Copyable<ObjectColor>, Compara
         return newColor;
     }
 
+    /**
+     * Returns a new color which contains the intersection of the colors of this 
+     * ObjectColor and the other ObjectColor.
+     *
+     * @param other The other ObjectColor to intersect with
+     * @return A new color which is the intersection of this and other
+     */
+    public ObjectColor intersection(ObjectColor other) {
+        ObjectColor newColor = new ObjectColor();
+        newColor.white = white && other.white;
+        newColor.blue = blue && other.blue;
+        newColor.black = black && other.black;
+        newColor.red = red && other.red;
+        newColor.green = green && other.green;
+        return newColor;
+    }
+
     public int getColorCount() {
         int count = 0;
         if (white) {