Bowser, King Of The Koopas

Menace, deathtouch
If you control a Mario planeswalker, sacrifice
Bowser. If an opponent controls one, Bowser
deals damage equal to his power to Mario.
{1}{b}{r}, {t}: Create a 2/1 Koopa creature token
with: When this creature dies, put a +1/+1
counter on a Bowser you control.
Mario? Bah! I can take him.