Primal Fury

Unstoppable Fury: Choose a target creature you control. That creature gains +X/+X and First Strike until the end of the turn, where X is equal to the number of creatures you control.
Ancient Despair: If you control at least three additional black, or green creatures, all creatures you control gain +X/+X until the end of the turn, where
X equals the number of cards in your graveyard. Each opponent loses X lives.