裏で糸を引く者 クレイマン
Puppeteer in the Shadows, Clayman is a Weiß Schwarz card from 転生したらスライムだった件 Vol.3 TSK/S101-067. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【AUTO】 [Put 1 《Demon Continent》 character from your hand into your waiting room] When this card is placed on the stage from your hand, you may pay the cost. If you do, choose 1 level 0 or lower 《Demon Continent》 character in your waiting room, put it on any position of your stage, that character gets +3000 power until end of turn, and at the end of the turn, put that character into your waiting room.