Proof of Contract, Rin (FS/S34-E061 U) [Fate/Stay Night [Unlimited Blade Works]]

[AUTO] When this card becomes REVERSE, if this card's battle opponent is level 0 or lower, you may REVERSE that character. [ACT][REST this card] Choose one of your characters with "Archer" in its card name, until end of turn, that character gets +1500 power and the following ability."[CONT] If the character facing this card is a lower level than this card, this card cannot attack."