I admire Ibelyn a little bit. She's not really a villain in my opinion. She went to Latte to tell her about the hate she have toward her and she didn't get physical yet. But her mentality is wrong. Hope she'll change for the better.
I think i know what's happening. I think that body is her real body. To protect her or something Yarn send her soul into a human body and a human soul into her body. That would explain why 'Leah Blessa' couldn't use magic but mc can. I think magic there is provide by the soul.
Look like someone just his muse