"HOW IS THE DEAD BODY STILL MOVING???" I dunno, prolly through necromancy? The thing she did when she was alive? Well whatever. Revenge o clock is ringing
I have to wonder, maybe when she was alive, she had been holding back how she used her necromancy because she knew how horrifying it is for the humans. Now she no longer cares about human ethics and starts getting... creative.dude... really forgot what her magic was...