Nazkrull, Who Hungers

You may sacrifice a creature. If you do,
Nazkrull, Who Hungers gets +X/+X and has
menace and trample, where X is the sacrificed
creature's power.
{8}{b}{r}{g} Sacrifice Nazkrull, Who Hungers: Nazkrull, Who Hungers deals 16 damage to all creatures and all players, then you may return
target creature card from your graveyard to your
hand.