Ｓ級クエスト is a Weiß Schwarz card from 2010年度トライアルデッキ【S】 FT/S09-T13. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
Choose up to two of your characters, and they get the following ability until end of turn. "【AUTO】 [(1)] When this card's battle opponent becomes 【REVERSE】, you may pay the cost. If you do, choose a character in your waiting room, and return it to your hand."