Kakunsa, Beastly Maiden (DB2-072) [Draft Box 05 - Divine Multiverse]

Product Details

[Counter:Attack] Negate the attack, then play this card.
[Permanent] If your Leader Card is green and it's your opponent's turn, reduce the energy cost of this card in your hand by 2.
[Auto] When you play this card, choose up to 1 of your opponent's Battle Cards and KO it.