“白羽の伝承”鏡子 is a Weiß Schwarz card from TVアニメ『Summer Pockets』 SMP/W137-063. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【AUTO】 When this attacks, choose 1 of your other 《Summer Pockets》 characters, until the end of your opponent's turn, it gets +2500 power and the following ability, "【AUTO】 (1) At the start of Encore Step, if you do not have any other Rested characters in your Front Row, you may pay cost. If you do, Rest this."
This card was printed in Japanese only; the English text above is an unofficial community translation.