this.color.setBlack(true);
this.power = new MageInt(2);
this.toughness = new MageInt(2);
// Other Zombie creatures get +1/+1.
this.addAbility(new SimpleStaticAbility(Zone.BATTLEFIELD, new BoostAllEffect(1, 1, Duration.WhileOnBattlefield, filter, true)));
// {1}{B}, {tap}: Return target Zombie card from your graveyard to your hand.
Ability ability = new SimpleActivatedAbility(Zone.BATTLEFIELD, new ReturnToHandTargetEffect(), new ManaCostsImpl("{1}{B}"));
ability.addCost(new TapSourceCost());
ability.addTarget(new TargetCardInYourGraveyard(filterCard));
this.addAbility(ability);