夕映えに微笑む 六喰 is a Weiß Schwarz card from デート・ア・ライブ Vol.3 DAL/W131-053. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【AUTO】 At the start of your CX Phase, choose 1 of your 《Date》 or 《Celestial Spirit》 characters, this turn, it gets +1000 power. 【ACT】 [(1) Rest this] Choose 1 of your 《Date》 or 《Celestial Spirit》 characters, this turn, it gains the following ability, "【AUTO】 When this card's battle opponent is Reversed, choose 1 character in your Waiting Room, you may add it to hand."
This card was printed in Japanese only; the English text above is an unofficial community translation.