“舞台上のお嬢様”ダイナムヒロイン is a Weiß Schwarz card from アニメ『ウマ娘 シンデレラグレイ』 UMA/W134-046. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【AUTO】 At the start of your Attack Phase, choose 1 of your 《Uma Musume》 characters, this turn, it gets +1000 power. 【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 《Uma Musume》 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.