魔界の優等生マオ is a Weiß Schwarz card from 魔界戦記ディスガイア DG/S02-007. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【AUTO】 ［②］ When this card is placed in waiting room from stage, you may pay the cost. If you do, search your deck for up to 1 《勇者》 character or card with 「主人公」 in its name, show it to your opponent and place it into your hand. Shuffle your deck afterwards.
This card was printed in Japanese only; the English text above is an unofficial community translation.