ぷちシュナ
Petit Shuna is a Weiß Schwarz card from 転生したらスライムだった件 Vol.2 TSK/S82-104. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【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."