星空の下 瑠夏 is a Weiß Schwarz card from 彼女、お借りします Vol.2 KNK/W132-082. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【AUTO】 [Discard 1 CX with a Pants Trigger] When this is placed on stage from hand, you may pay cost. If you do, choose 1 CX with a Pants Trigger from your Waiting Room, and add it to hand. 【AUTO】 When this is Reversed, if the battle opponent's Cost is 0 or lower, you may send that character to the bottom of your opponent's deck.
This card was printed in Japanese only; the English text above is an unofficial community translation.