Assassin Servitor

For 5 minutes, causes the servitor to be possessed with the spirit of an ancient assassin. Increases accuracy by 4, evasion by 4, Atk. Spd. by 20%, the critical rate occurring in the rear by 20%, the critical damage occurring in the rear by 20%, and resistance to de-buff attacks by 10. Bestows the ability to recover 5% of standard short-range physical damage inflicted on the enemy as HP. Consumes 10 Runestones.