She’s a complicated, contradictory character and I like that a lot but I do feel like in a way they did rush a little to redeem her. We get hints that she is the way she is because of something traumatic in her past but we never see how she that. Maybe it’s that she doesn’t seem to have a lot of control over her power to absorb other witches’ magic like with Alice so that’s why she was labeled evil when she was young. Or maybe it was her mother’s insistence that she was born evil that ironically set her on this path. What happened with Nicky seemed like a tangent because she was already killing witches when he was a baby. I read a theory that she was doing that to appease Rio so that she wouldn’t come for Nicky but if that was true, it wasn’t very obvious.
And now she’s a mentor figure to a Young Avenger and the vibe at the end was very much like odd couple going on kooky adventures. I think it would’ve been interesting if it was more obvious at the end that while Billy can learn from her, he still can’t fully trust her. I would’ve loved it if she was given even less of a redemption.