約束 is a Weiß Schwarz card from Phantom -requiem for the phantom- PT/W07-019. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
Choose 1 of your characters with 「キャル」 in the name, return it to hand. If you do, search your deck for up to 1 character with 「ドライ」 in the name, show it to your opponent and place it into your hand. Shuffle your deck afterwards.
This card was printed in Japanese only; the English text above is an unofficial community translation.