During an interview with Comicbook.com on the set of Doctor Strange, Marvel Studios President Kevin Feige was asked what difference was between Doctor Strange and Scarlet Witch, considering they are both wielders of other worldly magic.
Feige answered saying, “Her powers, she’s never had any training, I’m talking about Scarlet Witch. She never had any training; she’s figuring it out. Arguably, you could say that that’s why her powers are much more chaotic and much more loose in the way that we showcased those light effects. In [Doctor Strange], some of what you might see today, even the cover of Entertainment Weekly, it’s much tighter. It’s all about focus. It’s all about pulling energies from other dimensions in an organized and purposeful fashion, which is why they can do a lot more than she can in, at least, a much more precise way.”
Fans continue to speculate if this is an indication that she may be drawing her powers from another dimension and tapping into “Chaos Magic”. In the comics, Doctor Strange was surprised to learn that Scarlet Witch used this specific form of magic as he and other Masters of the Mystic Arts believed that form of magic to be mythical and not real. Wanda rewrote reality in the 2005 limited series, House of M, using this ability.
Asgardians such as Loki, Odin and Frigga have also showcased the use of magic in the MCU being explained away in The first Thor film as simply very advanced science.
Dr. Stephen Strange (Benedict Cumberbatch), a young, arrogant surgeon with a promising career, loses his ability to operate after a terrible accident. Despondent and suicidal, Dr. Strange seeks advice from a mystical being known as the Ancient One and learns that he is the newly designated Sorcerer Supreme, responsible for protecting the planet from evil. With his girlfriend Clea and his loyal assistant Wong in tow, Strange sets out to fulfill his destiny.