Entrusted Arm of Archer, Shirou (FS/S64-E003S SR) [Fate/Stay Night [Heaven's Feel]]

[AUTO] When this card becomes [REVERSE] in battle, if your memory has 2 or less cards, you may put this card into your memory. [AUTO] When this card becomes [REVERSE], if this card's battle opponent is level 0 or lower, you may put that character into your opponent's stock. If you do, put the bottom card of your opponent's stock into his or her waiting room.