Shadow of the Six Samurai - Shien [SDWA-EN041] Ultra Rare

2 Level 4 "Six Samurai" monsters // Once per turn, during either player's turn: You can detach 1 Xyz Material from this card to target 1 face-up "Six Samurai" monster you control with less than 2000 ATK; its original ATK becomes 2000 until the End Phase.