Are you talking about Yekbun? Her? I mean.. Does Yekbun show any magical prowess? Do we actually see her perform magic? I haven’t gone back and read those scenes in a while, but I don’t think she does do any.. If she does, it’s definitely nothing to suggest she can manipulate the Void?
My real question is why you think Yekbun is the LEADER (much less a member) of the Followers of Virdana (or whatever the name of that twat is; it’s been a hot minute since I read AToC, sue me). Yekbun seems innocent enough to me, and she seems to have given us real and pretty valid information about our parents.. Can’t seem to find any hints of her be jealous or angry, either..
Dunno, pretty skeptical about that one there, friend. There’s always a chance that you’re right and I’m tweaking, you never know :]