Petit Shuna (TSK/S82-E104 PR) [That Time I Got Reincarnated as a Slime Vol.2]

[AUTO] When your other character becomes [REVERSE] in battle, choose 1 of your characters, and that character gets +2000 power until end of turn. [ACT] Brainstorm [(1)] Flip over 4 cards from the top of your deck, and put them into your waiting room. For each climax revealed among those cards, perform the following action. "Choose 1 character in your waiting room, return it to your hand, choose 1 card in your hand, and put it into your waiting room."