Final Gambit, CZ (OVL/SE51-E33H HC) [Nazarick: Tomb of the Undead Vol.3 Extra Booster]

[AUTO] When this card is placed on the stage from your hand, this card gets +X power until end of turn. X is equal to the number of characters your opponent has x1000. [AUTO] [Put 1 climax from your hand into your waiting room] When this card is placed on the stage from your hand, you may pay the cost. If you do, choose 1 green or "Grotesque Race" or "Nazarick" character in your waiting room, and return it to your hand.