Throne of a Thousand Souls

Deathtouch, Trample

Devour 1 (As this enters the battlefield, you
may sacrifice any number of creatures. This creature
enters the battlefield with that many
+1/+1 counters on it.)

Undying 2 (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 +2/+2 counter on it.)