User blog comment:Iron.Shadow.Dragon/Take Over: Satan Soul origins?/@comment-5593752-20131020133934

I'm not sure either, because while she has her Satan Soul ability she has also demonstrated the ability to change her appearance to look like other people for example when she morphs to look like Lucy during the Phantom arc. So the exact mechanics of her magic are vague to say the least; still one of my favorite charters though :D