オンステージ！ ラインハルト is a Weiß Schwarz card from 「Re:ゼロから始める異世界生活」Vol.4 RZ/S132-014. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【CONT】 If you have 3 or more CXes with different names in your Waiting Room, this gets -1 Level in hand. 【AUTO】 [Discard 1 card] When this is placed on stage from hand, you may pay cost. If you do, choose up to 2 characters in your Waiting Room, add them to hand. 【AUTO】 RESONATE [Reveal 1 {RR 2/0 Felt - 004} from your hand] At the start of your CX Phase, you may pay cost. If you do, until the end of your opponent's next turn, this gets +1500 power and the following ability, "【CONT】 During this card's battle, you do not take damage from the AUTO effects of your opponent's characters."
This card was printed in Japanese only; the English text above is an unofficial community translation.