BMO: Beating Himself at His Own Game is a Weiß Schwarz card from Adventure Time AT/WX02-029. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【CONT】 If your level is 2 or higher, this card gets the following ability. "【ACT】 [Put this card into your stock] Choose up to 1 "BMO: Noire" in your hand, and put it on the stage position that this card was on." 【ACT】 [【REST】 2 of your 《Ooo》 characters] Choose 1 card in your level and 1 card in your waiting room, and exchange them.