Give her baatezu traits. Also psionics are fine, it's just 'rare' for devils have it (there are truename based devils and there is psionic demon in abyss, so your lamia could be rare case for have psionic powers instead traditional sorcery).<br/><br/>Anyways ok, bit rivalry but not crossing in purposes wise but there can be Glasya cultists around in mortal plane :P.