filter.add(new ColorPredicate(ObjectColor.BLACK));
filter.add(Predicates.not(new CardIdPredicate(this.getId()))); // the exile cost can never be paid with the card itself
this.addAbility(new AlternativeCostSourceAbility(new ExileFromHandCost(new TargetCardInHand(filter))));
// Target creature gets -X/-X until end of turn.
DynamicValue x = new SignInversionDynamicValue(new ExileFromHandCostCardConvertedMana());
this.getSpellAbility().addEffect(new BoostTargetEffect(x, x, Duration.EndOfTurn, true));
this.getSpellAbility().addTarget(new TargetCreaturePermanent());
}