Extermination Request, Fern(SR)

[AUTO] [Put this card into your waiting room] When your other "Adventurer" or "Magic" character is frontal attacked, you may pay the cost. If you do, choose 1 of your characters in battle, and that character gets +1500 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."