“服が透けて見える魔法”フェルン is a Weiß Schwarz card from 葬送のフリーレン 新装版 SFN/S128-059. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【AUTO】 When this card is placed on the stage from your hand, choose 1 of your opponent's stage positions, and put all markers in the marker area corresponding to that position into their waiting room. 【AUTO】 [(1) Put 1 《Adventurer》 or 《Magic》 character from your hand into your waiting room] When this card is placed on the stage from your hand or put into your waiting room from the stage, you may pay the cost. If you do, look at up to 3 cards from the top of your deck, choose up to 1 card from among them, put it into your hand, and put the rest into your waiting room.