Rotwood Ooze

{1}{g}: Exile target card from your graveyard. Rotwood Oooze get +1/+1 until the end of turn.
Consume - ({t}: Sacrifice a creature with less toughness than this creature's power and put a +1/+1 counter on this creature, or create a Food token.)
Whenever Rotwood Ooze consumes a creature it gets an additional +1/+1 counter, or it untaps and has trample until end of turn.