ポーズレッスン is a Weiß Schwarz card from THE IDOLM@STER IM/S07-022. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【COUNTER】 If you do not have a 《Music》 character, this card cannot be played from hand. Choose one of your characters, and that character gets +4000 power until end of turn.