Fire Lord Zuko [221s] [Prerelease] [Avatar: The Last Airbender: Promos] [Foil]

Firebending X, where X is Fire Lord Zuko's power. (Whenever this creature attacks, add X {R}. This mana lasts until end of combat.)
Whenever you cast a spell from exile and whenever a permanent you control enters from exile, put a +1/+1 counter on each creature you control.