ミステリアス ボーちゃん is a Weiß Schwarz card from 映画クレヨンしんちゃん CS/S114-033. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【AUTO】 When this is placed on stage from hand, choose 1 card from your hand, you may send it to Stock. 【ACT】 BRAINSTORM (1) Flip over the top 4 cards of your deck, then send them to Waiting Room. For each CX among them, resolve the following effect: "Choose 1 character from your Waiting Room, add it to hand, and discard 1 card."
This card was printed in Japanese only; the English text above is an unofficial community translation.