Bのリベンジ MEMちょ is a Weiß Schwarz card from 【推しの子】Vol.3 OSK/S133-011. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【CONT】 ASSIST Level x 500 to 《Show Business》 characters. 【AUTO】 When you trigger a CX with a Choice Trigger, choose 1 of your characters, this turn, it gets +1000 power and the following ability, "【AUTO】 (1) When this attacks, you may pay cost. If you do, during the Trigger Step of this attack, perform Trigger Check twice."
This card was printed in Japanese only; the English text above is an unofficial community translation.