Just came back to delete the part about personal switch, cause I read it in the file, but looks I was too late. Sorry to bother needlessly w/ it.
But after a few hours more digging, checking, and looking for clues, I still can't get any spells working. Everything I have is 3.3h_rc2, that I also tripled-checked. Only two scripts and a couple 2da's up top, and all these were rechecked. Pretty stumped, I only tested previous versions with an assassin and never had spells for him either. I've tried this with a couple classes so far, no luck across the board yet. If I figure it out on my own, I'll be glad to call off the hounds.