Anyone in his right mind fears a leper. This Gift allows the Bone Gnawer to draw an illusion of terrible disease on his features, replling even the most stout-hearted onlookers. It's a useful trick in many situations. It can earn charity from well-meaning monks, terrify locals and even serve as a way of blending in - after all, people are afraid of you whether they think you're a leper or bewitched, but as least disease is more acceptable than witchcraft. This Gift is taught by a Rat or Disease spirit.
The Bone Gnawer rolls Manipulation + Medicine; the effects last for a scene. The imaginary disease may appear to be anything the Gnawer is familiar with, such as leprosy or pox, or even something entirely invented. Mortals viewing the illusion must make Willpower checks at difficulty 8 or shrink away in revulsion; a botch might even send them screaming out into the streets, screaming about pestilence. Supernaturals who are immune to disease have less to fear - they must still make Willpower tests, but the difficulty falls to 6