Well, yeah, she is kinda under XP. But you can help her with that
I take her with me, because she's (I think) part off the story-line since I know she's a bhaalspawn too. Just help her faith a bit and get that XP as high as your own.
------------------
There's something in your eyes, ah no, I see now, it's the reflection of my deadly gaze - Mirac Honorguard
(Necromancer)