Ghost Agatha

It seems like some people are mad Agatha is a ghost? Jac Schaefer said the endgoal was always for Agatha to end up a ghost and it makes sense with her mentor role. She can't mentor Billy or any magic user if she's able to syphon their powers.

In order for her to fall into that role they had to find a canon comic reason and her being a ghost is that. She was Wanda's ghost mentor in the comics and now she'll be Billy's. They can even give her , a solid look with only Billy being the only one who can see her. It's not that hard people.