CavernHarpy.java example

Explorer
mage-master
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package mage.cards.c;

import mage.MageInt;
import mage.ObjectColor;
import mage.abilities.common.EntersBattlefieldTriggeredAbility;
import mage.abilities.common.SimpleActivatedAbility;
import mage.abilities.costs.common.PayLifeCost;
import mage.abilities.effects.common.ReturnToHandChosenControlledPermanentEffect;
import mage.abilities.effects.common.ReturnToHandSourceEffect;
import mage.abilities.keyword.FlyingAbility;
import mage.cards.CardImpl;
import mage.cards.CardSetInfo;
import mage.constants.CardType;
import mage.constants.Zone;
import mage.filter.common.FilterControlledCreaturePermanent;
import mage.filter.predicate.Predicates;
import mage.filter.predicate.mageobject.ColorPredicate;

import java.util.UUID;

/**
 *
 * @author LevelX2
 */
public class CavernHarpy extends CardImpl {

    static final private FilterControlledCreaturePermanent filter = new FilterControlledCreaturePermanent("blue or black creature you control");

    static {
        filter.add(Predicates.or(new ColorPredicate(ObjectColor.BLUE), new ColorPredicate(ObjectColor.BLACK)));
    }

    public CavernHarpy(UUID ownerId, CardSetInfo setInfo) {
        super(ownerId,setInfo,new CardType[]{CardType.CREATURE},"{U}{B}");
        this.subtype.add("Harpy");
        this.subtype.add("Beast");

        this.power = new MageInt(2);
        this.toughness = new MageInt(1);

        // Flying
        this.addAbility(FlyingAbility.getInstance());
        // When Cavern Harpy enters the battlefield, return a blue or black creature you control to its owner's hand.
        this.addAbility(new EntersBattlefieldTriggeredAbility(new ReturnToHandChosenControlledPermanentEffect(filter), false));
        // Pay 1 life: Return Cavern Harpy to its owner's hand.
        this.addAbility(new SimpleActivatedAbility(Zone.BATTLEFIELD, new ReturnToHandSourceEffect(true), new PayLifeCost(1)));
    }

    public CavernHarpy(final CavernHarpy card) {
        super(card);
    }

    @Override
    public CavernHarpy copy() {
        return new CavernHarpy(this);
    }
}