Pressured Stealth Rogue, Sarashina-hime

Shadowstitch-:At the end of the battle that this unit attacked a vanguard and was boosted ([Boost]), if the attack did not hit, 1. :When this unit is placed on , choose one of your other units, and you may have it get -5000 until end of turn. If you do, this unit gets +5000 until end of turn.