this.color.setGreen(true);
this.power = new MageInt(2);
this.toughness = new MageInt(2);
// {3}{G}, {tap}: You may tap or untap target artifact, creature, or land.
Ability ability = new SimpleActivatedAbility(Zone.BATTLEFIELD, new MayTapOrUntapTargetEffect(), new ManaCostsImpl("{3}{G}"));
ability.addCost(new TapSourceCost());
ability.addTarget(new TargetPermanent(filter));
this.addAbility(ability);
}