Abyssal Butcher

Devil or Demon Offering (You may cast this spell any time you could cast an instant by sacrificing a Devil or Demon and paying the difference in mana costs between this and the sacrificed Devil or Demon. Mana cost includes color.)
When Abyssal Butcher enters the battlefield, you may have it deal damage equal to its power to up to two target creatures, then put a -1/-1 counter on Abyssal butcher for each cr