this.color.setGreen(true);
this.power = new MageInt(2);
this.toughness = new MageInt(2);
// Creatures with power less than Aura Gnarlid's power can't block it.
this.addAbility(new SimpleStaticAbility(Zone.BATTLEFIELD, new CantBeBlockedByCreaturesWithLessPowerEffect()));
// Aura Gnarlid gets +1/+1 for each Aura on the battlefield.
PermanentsOnBattlefieldCount count = new PermanentsOnBattlefieldCount(filter);
this.addAbility(new SimpleStaticAbility(Zone.BATTLEFIELD, new BoostSourceEffect(count, count, Duration.WhileOnBattlefield)));
}