Agatha Harkness' history is presumably similar to her Earth-616 counterpart's. After Baron Mardo obtained the Darkhold, he used its power to take control of Agatha and force her to constantly cast a spell that made him very powerful and constantly youthful while also taking Agatha's power and sight. However, Doctor Doom realized what Mordo was doing and broke Mordo's control over her during his confrontation with Mordo. Agatha left the Mordo's town while Doom told that she now owed him.