Added Ogre Leadfoot.

Mage.Sets/src/mage/cards/o/OgreLeadfoot.java

@@ -0,0 +1,64 @@
+/*
+ *  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.o;
+
+import java.util.UUID;
+import mage.MageInt;
+import mage.abilities.common.BecomesBlockedByCreatureTriggeredAbility;
+import mage.abilities.effects.common.DestroyTargetEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.filter.common.FilterArtifactCreaturePermanent;
+
+/**
+ *
+ * @author LevelX2
+ */
+public class OgreLeadfoot extends CardImpl {
+
+    public OgreLeadfoot(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{4}{R}");
+        
+        this.subtype.add("Ogre");
+        this.power = new MageInt(3);
+        this.toughness = new MageInt(3);
+
+        // Whenever Ogre Leadfoot becomes blocked by an artifact creature, destroy that creature.
+        this.addAbility(new BecomesBlockedByCreatureTriggeredAbility(new DestroyTargetEffect(), new FilterArtifactCreaturePermanent("an artifact creature"), false));
+    }
+
+    public OgreLeadfoot(final OgreLeadfoot card) {
+        super(card);
+    }
+
+    @Override
+    public OgreLeadfoot copy() {
+        return new OgreLeadfoot(this);
+    }
+}

Mage.Sets/src/mage/sets/Mirrodin.java

@@ -186,6 +186,7 @@ public class Mirrodin extends ExpansionSet {
         cards.add(new SetCardInfo("Nim Shrieker", 73, Rarity.COMMON, mage.cards.n.NimShrieker.class));
         cards.add(new SetCardInfo("Nuisance Engine", 221, Rarity.UNCOMMON, mage.cards.n.NuisanceEngine.class));
         cards.add(new SetCardInfo("Oblivion Stone", 222, Rarity.RARE, mage.cards.o.OblivionStone.class));
+        cards.add(new SetCardInfo("Ogre Leadfoot", 102, Rarity.COMMON, mage.cards.o.OgreLeadfoot.class));
         cards.add(new SetCardInfo("Omega Myr", 223, Rarity.COMMON, mage.cards.o.OmegaMyr.class));
         cards.add(new SetCardInfo("One Dozen Eyes", 126, Rarity.UNCOMMON, mage.cards.o.OneDozenEyes.class));
         cards.add(new SetCardInfo("Ornithopter", 224, Rarity.UNCOMMON, mage.cards.o.Ornithopter.class));

Mage/src/main/java/mage/abilities/common/BecomesBlockedByCreatureTriggeredAbility.java

@@ -79,7 +79,9 @@ public class BecomesBlockedByCreatureTriggeredAbility extends TriggeredAbilityIm
 
     @Override
     public String getRule() {
-        return "Whenever {this} becomes blocked by a " + filter.getMessage() + ", " + super.getRule();
+        return "Whenever {this} becomes blocked by "
+                + (filter.getMessage().startsWith("an ") ? "" : "a ")
+                + filter.getMessage() + ", " + super.getRule();
     }
 
     @Override