While the Marvel Universe has always had its fair share of menacing villains who threaten it at nearly every turn, its greatest heroes rarely fail to prevent these forces — even when outmatched in every possible way. Unfortunately, the nuances behind some of these epic confrontations haven't always been as black-and-white as they would seem. Worse still, the details of the Scarlet Witch's greatest victory have driven Agatha Harkness to undo everything that came with it, even if it means unleashing an ancient evil all over again.
Source:https://www.cbr.com/scarlet-witch-agatha-harkness-marvel-contest-of-chaos/