姉との思い出 六喰 is a Weiß Schwarz card from デート・ア・ライブ Vol.3 DAL/W131-057. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【AUTO】 When your other 《Date》 or 《Celestial Spirit》 character attacks, this turn, this gets +1500 power. 【AUTO】 When this is sent from Stage to Waiting Room, you may reveal up to 3 cards from the top of your deck. If you revealed 1 or more, choose up to 1 《Date》 or 《Celestial Spirit》 character from among them, add it to hand, send the rest to Waiting Room, and discard 1 card.
This card was printed in Japanese only; the English text above is an unofficial community translation.