Trio's Melody, Riko Sakurauchi

【AUTO】 [(2)] When you use this card's "Backup", you may pay the cost. If you do, return all cards from your waiting room to your deck, and shuffle your deck.【ACT】 【COUNTER】 Backup 2500, Level 2 [(1) Put this card from your hand into your waiting room] (Choose 1 of your characters that is being frontal attacked, and that character gets +2500 power until end of turn)