Detailed Information of Superhero
Agatha Harkness (Earth-791218)
On Earth-791218, Agatha Harkness was one of the many mystics recruited by the Ancient One to determine what to do about the threat of Dormammu's disciple Stephen Strange. She was present in a circle of protection during an attack by Strange, and was almost be sucked into a portal opened by mistake by Anthony Druid. Later when Strange attacked again, Agatha and the others cast an illusion making it appear as though Strange had slain them so that he would attempt to battle Eternity, a move that would see Strange surrender his evil ways and ask the Ancient One to train him.
What If? #18 (September, 1979)
Peter Gillis, Tom Sutton