foul-magics/Mage.Sets/src/mage/sets/shadowsoverinnistrad/GryffsBoon.java

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package mage.sets.shadowsoverinnistrad;

import java.util.UUID;
import mage.abilities.Ability;
import mage.abilities.common.ActivateAsSorceryActivatedAbility;
import mage.abilities.common.SimpleStaticAbility;
import mage.abilities.costs.mana.ManaCostsImpl;
import mage.abilities.effects.Effect;
import mage.abilities.effects.OneShotEffect;
import mage.abilities.effects.common.AttachEffect;
import mage.abilities.effects.common.continuous.BoostEnchantedEffect;
import mage.abilities.effects.common.continuous.GainAbilityAttachedEffect;
import mage.abilities.keyword.EnchantAbility;
import mage.abilities.keyword.FlyingAbility;
import mage.cards.Card;
import mage.cards.CardImpl;
import mage.constants.AttachmentType;
import mage.constants.CardType;
import mage.constants.Duration;
import mage.constants.Outcome;
import mage.constants.Rarity;
import mage.constants.Zone;
import mage.filter.common.FilterCreaturePermanent;
import mage.game.Game;
import mage.game.permanent.Permanent;
import mage.players.Player;
import mage.target.TargetPermanent;
import mage.target.common.TargetCreaturePermanent;

/**
 *
 * @author escplan9 (Derek Monturo - dmontur1 at gmail dot com)
 */
public class GryffsBoon extends CardImpl {

    public GryffsBoon(UUID ownerId) {
        super(ownerId, 20, "Gryff's Boon", Rarity.UNCOMMON, new CardType[]{CardType.ENCHANTMENT}, "{W}");
        this.expansionSetCode = "SOI";
        this.subtype.add("Aura");

        // Enchant creature
        TargetPermanent auraTarget = new TargetCreaturePermanent();
        this.getSpellAbility().addTarget(auraTarget);
        this.getSpellAbility().addEffect(new AttachEffect(Outcome.BoostCreature));
        Ability ability = new EnchantAbility(auraTarget.getTargetName());
        this.addAbility(ability);
        
        // Enchanted creature gets +1/+0 and has flying.
        ability = new SimpleStaticAbility(Zone.BATTLEFIELD, new BoostEnchantedEffect(1, 0, Duration.WhileOnBattlefield));
        Effect effect = new GainAbilityAttachedEffect(FlyingAbility.getInstance(), AttachmentType.AURA);
        effect.setText("and has flying");
        ability.addEffect(effect);
        this.addAbility(ability);        
        
        // {3}{W}: Return Gryff's Boon from your graveyard to the battlefield attached to target creature. Activate this ability only any time you could cast a sorcery.
        ability = new ActivateAsSorceryActivatedAbility(Zone.GRAVEYARD, new GryffsBoonEffect(), new ManaCostsImpl("{3}{W}"));
        this.addAbility(ability);
    }

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

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

class GryffsBoonEffect extends OneShotEffect {

    public GryffsBoonEffect() {
        super(Outcome.PutCardInPlay);
        staticText = "Return {this} from your graveyard to the battlefield attached to target creature. Activate this ability only any time you could cast a sorcery.";
    }

    public GryffsBoonEffect(final GryffsBoonEffect effect) {
        super(effect);
    }

    @Override
    public boolean apply(Game game, Ability source) {
        Card aura = game.getCard(source.getSourceId());
        if (aura != null
                && game.getState().getZone(aura.getId()).equals(Zone.GRAVEYARD)) {
            Player controller = game.getPlayer(source.getControllerId());

            FilterCreaturePermanent filter = new FilterCreaturePermanent();
            TargetPermanent target = new TargetPermanent(filter);
            target.setNotTarget(true);
            if (controller != null
                    && controller.choose(Outcome.PutCardInPlay, target, source.getSourceId(), game)) {
                Permanent targetPermanent = game.getPermanent(target.getFirstTarget());
                if (!targetPermanent.cantBeEnchantedBy(aura, game)) {
                    game.getState().setValue("attachTo:" + aura.getId(), targetPermanent);
                    aura.putOntoBattlefield(game, Zone.GRAVEYARD, source.getSourceId(), controller.getId());
                    return targetPermanent.addAttachment(aura.getId(), game);
                }
            }
        }
        return false;
    }

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