Roronoa Zoro (113) [Legacy of the Master] Uncommon

[On K.O.] If your Leader has the "Supernovas" type, play up to 1 "Supernovas" type Character card with a cost of 4 or less from your hand rested.
[Trigger] K.O. up to 1 of your opponent's Characters with a cost of 1 or less and add this card to your hand.