Gravemind

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 Flood Infection Form creature token
for each +1/+1 counter on Gravemind.
"I am a monument to all your sins"