diff --git a/Mage/src/mage/abilities/keyword/EvolveAbility.java b/Mage/src/mage/abilities/keyword/EvolveAbility.java
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+/*
+ *  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.abilities.keyword;
+
+import java.util.UUID;
+import mage.Constants.CardType;
+import mage.Constants.Outcome;
+import mage.Constants.Zone;
+import mage.abilities.Ability;
+import mage.abilities.TriggeredAbilityImpl;
+import mage.abilities.effects.OneShotEffect;
+import mage.counters.CounterType;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.events.ZoneChangeEvent;
+import mage.game.permanent.Permanent;
+
+/**
+ *
+ * @author LevelX2
+ */
+
+
+public class EvolveAbility extends TriggeredAbilityImpl<EvolveAbility> {
+
+    public EvolveAbility() {
+        super(Zone.BATTLEFIELD, new EvolveEffect());
+    }
+
+    public EvolveAbility(EvolveAbility ability) {
+        super(ability);
+    }
+
+    @Override
+    public boolean checkTrigger(GameEvent event, Game game) {
+        if (event.getType() == GameEvent.EventType.ZONE_CHANGE) {
+            Permanent triggeringCreature = game.getPermanent(event.getTargetId());
+            if (((ZoneChangeEvent) event).getToZone() == Zone.BATTLEFIELD
+                    && triggeringCreature != null
+                    && triggeringCreature.getCardType().contains(CardType.CREATURE)
+                    && triggeringCreature.getControllerId().equals(this.controllerId)) {
+                Permanent sourceCreature = game.getPermanent(sourceId);
+                if (sourceCreature != null && isPowerOrThoughnessGreater(sourceCreature, triggeringCreature)) {
+                    this.getEffects().get(0).setValue("triggeringCreature", event.getTargetId());
+                    return true;
+                }
+            }
+        }
+
+        return false;
+    }
+
+    public static boolean isPowerOrThoughnessGreater(Permanent sourceCreature, Permanent newCreature) {
+        if (newCreature.getPower().getValue() > sourceCreature.getPower().getValue()) {
+            return true;
+        }
+        if (newCreature.getToughness().getValue() > sourceCreature.getToughness().getValue()) {
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    public String getRule() {
+        return "Evolve <i>(Whenever a creature enters the battlefield under your control, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)</i>";
+    }
+
+    @Override
+    public EvolveAbility copy() {
+        return new EvolveAbility(this);
+    }
+}
+
+class EvolveEffect extends OneShotEffect<EvolveEffect> {
+
+    public EvolveEffect() {
+        super(Outcome.BoostCreature);
+    }
+
+    public EvolveEffect(final EvolveEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public EvolveEffect copy() {
+        return new EvolveEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        UUID triggeringCreatureId = (UUID) getValue("triggeringCreature");
+        Permanent triggeringCreature = game.getPermanent(triggeringCreatureId);
+        if (triggeringCreature == null) {
+            triggeringCreature = (Permanent) game.getLastKnownInformation(triggeringCreatureId, Zone.BATTLEFIELD);
+        }
+        if (triggeringCreature != null) {
+            Permanent sourceCreature = game.getPermanent(source.getSourceId());
+            if (sourceCreature != null && EvolveAbility.isPowerOrThoughnessGreater(sourceCreature, triggeringCreature)) {
+                sourceCreature.addCounters(CounterType.P1P1.createInstance(), game);
+                return true;
+            }
+        }
+        return false;
+    }
+}
+