Baron Karl Amadeus Mordo (known as Baron Mordo) is a fictional supervillain appearing in American comic books published by Marvel Comics. The character is depicted commonly as an adversary of Doctor Strange. The character was created by writer Stan Lee and artist Steve Ditko, and first appeared in Strange Tales #111 (August 1963). Baron Mordo is a gifted magician, especially adept in the black arts of magic, including summoning demons. (Wikipedia)
It’s all the other wonderful stuff that makes the movie. Director Scott Derrickson isn’t afraid to let his imagination run wild everything from acid trips to body horror to Inception called and they want their movie back is featured.