[VOW] Implemented Apprentice Sharpshooter

Mage/src/main/java/mage/abilities/keyword/TrainingAbility.java

@@ -0,0 +1,60 @@
+package mage.abilities.keyword;
+
+import mage.MageInt;
+import mage.MageObject;
+import mage.abilities.TriggeredAbilityImpl;
+import mage.abilities.effects.common.counter.AddCountersSourceEffect;
+import mage.constants.Zone;
+import mage.counters.CounterType;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.permanent.Permanent;
+
+import java.util.Objects;
+
+/**
+ * @author TheElk801
+ */
+public class TrainingAbility extends TriggeredAbilityImpl {
+
+    public TrainingAbility() {
+        super(Zone.BATTLEFIELD, new AddCountersSourceEffect(CounterType.P1P1.createInstance()));
+    }
+
+    private TrainingAbility(final TrainingAbility ability) {
+        super(ability);
+    }
+
+    @Override
+    public TrainingAbility copy() {
+        return new TrainingAbility(this);
+    }
+
+    @Override
+    public boolean checkEventType(GameEvent event, Game game) {
+        return event.getType() == GameEvent.EventType.DECLARED_ATTACKERS;
+    }
+
+    @Override
+    public boolean checkTrigger(GameEvent event, Game game) {
+        if (!game.getCombat().getAttackers().contains(this.getSourceId())) {
+            return false;
+        }
+        Permanent permanent = getSourcePermanentIfItStillExists(game);
+        return permanent != null && game
+                .getCombat()
+                .getAttackers()
+                .stream()
+                .map(game::getPermanent)
+                .filter(Objects::nonNull)
+                .map(MageObject::getPower)
+                .mapToInt(MageInt::getValue)
+                .anyMatch(x -> x > permanent.getPower().getValue());
+    }
+
+    @Override
+    public String getRule() {
+        return "Training <i>(Whenever this creature attacks with another creature " +
+                "with greater power, put a +1/+1 counter on this creature.)</i>";
+    }
+}