Ethan, Conniving Combiner

When Ethan comes into play, declare a creature
type. Ethan, Conniving Combiner gains +1/+1
for each creature of that type on the battlefield.
Wombo Combo - At the beginning of the game,
declare 6 permanent cards. If all are on the board
while Ethan, Conniving Combiner in
play, you win the game.
—
"You messed with Squirrels."