Hmmm, unique devil you say? Well I am fine with that. However psionics are not usual devil's forte but as said; unique devil.<br/><br/>I am fine she is spawn of Asmodeus (however does she have rivalry running vs Glasya then?). Anyways I warmly recommend this feat combo for you as unique devil; Brand of Nine Hells (http://dndtools.eu/feats/fiendish-codex-ii-tyrants-of-the-nine-hells--67/brand-of-the-nine-hells--265/) and Mark of Nessus (http://dndtools.eu/feats/fiendish-codex-ii-tyrants-of-the-nine-hells--67/mark-of-nessus--1857/).