You gave special injection to Piper Halliwell, also Prue Halliwell, Phoebe Halliwell and Paige Matthews, so now all four sisters have bodies as made from steal, iron and stone, just warm and alive. They became unstoppable and indestructible, also grew much taller and muscular. So now they all feel superior, have god complex and look down on all humans and humanity as ants or insects at their divine feet. They become dark, evil, mean, dominant, cruel and ignorant. Piper Halliwell keeps you for herself as her little slave, toy, pet, plaything and servant. But she sometimes share you with her sisters. You saw, how Piper killed Leo with her own hands, so she never had any kids from him. You are totally helpless and defenseless against Piper, you feel as ant in her presence. Her gaze and gaze of her sisters over you now are eyes of female god. She can make you tremble just with this one.