Caseoh, Eater of Worlds

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.)

Sacrifice a food token: put a +1/+1 counter on caseoh,
it gains trample until end of turn

If caseoh has 10 or more +1/+1 counters on it exile
caseoh and return it to battlefield transformed under
its owners controll tapped