A Tremere with Weather Manipulation 2 or 3 and Lure of Flames 1 (both are minor, common paths), and an unsure amount of dots in Chimestry (never played gypsies). The Blood Bond would ensure people referring to him as "God". Probably a Tremere neonate with some Ravnos buddy behind the wall.
Oh, but from CofD? Any splat that can cause hallucinations, which is any splat.