[@Shadow Dragon]

"An immune system [i]can[/i] be too strong if it attacks your own body's cells" Ophion explained. "As for holy magic hurting you... yes. It wouldn't really affect your body, but you need to remember that you are still a wraith in a flesh-costume, basically. You can still be driven from that body by hostile magic, even though your body itself would simply fall to the floor, catatonic and pristine. There's no special resistance to holy magic from the drow-form we made for you. As for your patron, I have no idea what he would think, but if he objects, you may want to consider switching to a new one."