幻想御手開発者 木山 is a Weiß Schwarz card from 2010年度トライアルデッキ【W】 RG/W10-T03. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【ACT】 [②]Choose 1 of your character other than this card, during this turn, +1 Level, +4000 Power. At the end of turn, that card goes to Memory.
This card was printed in Japanese only; the English text above is an unofficial community translation.