this.getSpellAbility().addCost(new SacrificeTargetCost(new TargetControlledCreaturePermanent()));
// Destroy target creature. Its controller loses 2 life.
this.getSpellAbility().addTarget(new TargetCreaturePermanent());
this.getSpellAbility().addEffect(new DestroyTargetEffect());
this.getSpellAbility().addEffect(new LoseLifeTargetControllerEffect(2));
}