Since Agatha All Along failed to explain all of Agatha Harkness’ powers in the MCU, it’s possible the original Salem witch might be much more than she seems. Agatha All Along’s finale explored Agatha Harkness’ history in the MCU, revealing that she used the legend of the Witches’ Road to lure witches into her trap, but the popular Phase 5 series still left out some key pieces of information. Most notably, how Agatha Harkness’ power works is still a mystery, but the fact it’s so different to other witches in the MCU has spurred some huge new theories.

https://screenrant.com/agatha-harkness-power-mutant-unique-theory-explained/