Grisly Spawning

Undergrowth - When Grisly Spawning enters the battlefield, create a 0/0 black and green Germ creature token which enters the battlefield with a +1/+1 counter on it for each creature card in your graveyard.
Creatures you control with power 4 or greater have menace and trample.
"If we allow the Golgari to recycle all of our rubbish, we might find it coming back to haunt us."