Unconcealed Frustration, Ainz (OVL/SE51-E29 U) [Nazarick: Tomb of the Undead Vol.3 Extra Booster]

[AUTO] When this card attacks, if you have 2 or more other characters, this card gets +1500 power until end of turn. [AUTO] [(1)] During the turn that this card is placed on the stage from your hand, when this card's battle opponent becomes [REVERSE], 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.