[AKH] Code deduplication and fixes

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

@@ -0,0 +1,45 @@
+package mage.abilities.common;
+
+import mage.abilities.TriggeredAbilityImpl;
+import mage.abilities.effects.Effect;
+import mage.constants.Zone;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.permanent.Permanent;
+
+/**
+ * @author stravant
+ */
+public class ExertCreatureControllerTriggeredAbility extends TriggeredAbilityImpl {
+
+    public ExertCreatureControllerTriggeredAbility(Effect effect) {
+        super(Zone.BATTLEFIELD, effect);
+    }
+
+    public ExertCreatureControllerTriggeredAbility(final ExertCreatureControllerTriggeredAbility ability) {
+        super(ability);
+    }
+
+    @Override
+    public boolean checkEventType(GameEvent event, Game game) {
+        return event.getType() == GameEvent.EventType.BECOMES_EXERTED;
+    }
+
+    @Override
+    public boolean checkTrigger(GameEvent event, Game game) {
+        boolean weAreExerting = getControllerId().equals(event.getPlayerId());
+        Permanent exerted = game.getPermanent(event.getTargetId());
+        boolean exertedIsCreature = (exerted != null) && exerted.isCreature();
+        return weAreExerting && exertedIsCreature;
+    }
+
+    @Override
+    public ExertCreatureControllerTriggeredAbility copy() {
+        return new ExertCreatureControllerTriggeredAbility(this);
+    }
+
+    @Override
+    public String getRule() {
+        return "Whenever you exert a creature, " + super.getRule();
+    }
+}