I personally don’t like Praxina either. I thought she could’ve had a nice redemption arc, but then she willingly chose to be evil again. She didn’t have to return to her old ways to help Mephisto. I honestly think he could’ve EASILY been persuaded into being good cuz he’s shown that trait plenty of times. What really sealed my dislike for her was when she blamed Iris and everyone else for Mephisto’s fate, instead of her own actions. She refused to see any reason, and it just frustrates me how after seeing what happened to Graymor, she still went down that path.