Venom, Endless Hunger

Menace

Sacrifice another Symbiote creature, put X +1/+1 counters on Venom, Endless Hunger where X is the sacrificed creature's power.

Creatures in your graveyard have Assimilate {x}, where X is it's mana cost({x}, Exile this card from your graveyard: Create a token that’s a copy of it, except it’s a black Symbiote with menace in addition to it's other types with no mana cost. Assimilate only as a sorcery.)