Goomba Tower

Exile each creature named Goomba you
control. Create an X/Y Goomba Tower
creature token, where X and Y are the total
base power and toughness of all exiled
Goombas. Goomba Tower has: "At end of turn,
remove Goomba Tower from the game and
return all Goombas exiled with Goomba Tower
to the battlefield under their owner's control."