[Suzerain of Sheol]

I'm not entirely sure how to begin addressing the issues with that post, I'll try to keep this relatively brief.

1.) There is no God to give her power. There is a distinct absence in the universe, a God-sized hole, if you will.

2.) What is this "universe" you're speaking of? This is a Biblical cosmology, the physical reality doesn't go beyond our solar system. Likewise, it has no power to help or hinder anyone, it is inert.

3.) If Heaven as ever inherently "good" it is no longer anything like that. The insane and deranged can cast Theurgy as readily as the pious and the meek, perhaps even more readily.

4.) Chakras. What. I don't even. I thought we've been over this.

5.) Theurgy can't be taught, it's the expression of the soul. A power-up would require a growth in spiritual presence, not in deeper understanding of the secrets of the universe.

6.) Why would she gain a sudden power-up in this particular moment? It feels very... mary sue-ish.

7.) Na'lsa is deep in Sin's innards at this point, I don't see how she can do much of anything to him. Likewise, why is she concerned with him when the DAUGHTER OF SATAN is in front of the group?

I think that covers most of it, really you could just have her react to the abominable creature she's been suddenly confronted with.