Responses
First of all, love your name.
Secondly, highly unlikely. Anastacius had very weak magical powers before. Also he was possessed by aethernitas only after claude killed him which happened later.
guys i have a theory *drum roll* remember penelope (claude's ex-fiancee who apparently cheated on him with anastacius)?? what if penelope genuinely liked claude and had a good relationship with him in the beginning but then anastacius being the bitch that he is, saw penelope as a tool he can use to destroy claude that's why he did some brainwashing black magic shit on her that could make her do anything he wants (just like what he did to ijekiel's dad) that's why penelope ended up cheating on claude with anastacius.................