Gork

At the beginning of combat add {g} to your mana
pool until end of turn, create a Green 1/1 Ork
token with haste and renown 1. Creatures you
control get +1/+0 until end of turn.
At the beginning of each end step if you control
no creatures or if three or more creatures you
control died this turn, sacrifice Gork.
If you attacked with three or more creatures transform Gork. (Mork {3}{r})