Gluttonous HIppo

Devour 3 (As this enters the battlefield, you
may sacrifice any number of creatures. This creature enters the battlefield with three times that
many +1/+1 counters on it.)
Undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a
+1/+1 counter on it.)