元気な音夢 is a Weiß Schwarz card from D.C. D.C.II プラスコミュニケーション DC/W09-051. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【AUTO】 When you use this card's 「ASSIST」 ability, choose 1 of your 《バナナ》 or 《風紀委員》 Characters, during this turn, it gets +1 Level. 【ACT】 ● ASSIST 1000 Level 0 [Discard this card to Waiting Room from hand] (Choose 1 of your Characters being Front Attacked, during this turn, it gets +1000 Power)
This card was printed in Japanese only; the English text above is an unofficial community translation.