夜半の決意 有馬かな is a Weiß Schwarz card from 【推しの子】Vol.3 OSK/S133-091. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【CONT】 If you have another 《Show Business》 character, this gains the following 2 abilities, - "【CONT】 During your turn, this gets +5000 power." - "【AUTO】 ENCORE [Discard 1 《Show Business》 character]" 【AUTO】 [(1) Discard 1 card] When this is placed on stage from hand, you may pay cost. If you do, search your deck for up to 1 CX with a Book Trigger, show it to your opponent, add it to hand, and shuffle your deck afterwards.
This card was printed in Japanese only; the English text above is an unofficial community translation.