Ganymede the Great

Devour 2 (As this enters the battlefield, you may sacrifice any number of creatures. This creature enters
the battlefield with twice that many +1/+1 counters
on it.)
At the beginning of your upkeep, create a 1/1
green Saproling creature token for each +1/+1
counter on Ganymede the Great.
She big, she monch, she gonna cromch!