Doctor Strange finds himself in another dimension where he is attacked by the minions of Azmodeus. After capturing Doctor Strange, Azmodeus took his face and form and fled to earth to impersonate him. Managing to retrieve the cloak of levitation, Doctor Strange calls upon the wisdom of Oshtur and the curse of Watoomb to free himself.
Having done that, however, he realises that he cannot return to earth as his former self, because Stephen Strange is already there in the form of Azmodeus! To return to earth Doctor Strange forges himself a new costume - complete with full face mask. When he returns to his native planet he overcomes Azmodeus, but having done so, he decides he likes his new costume and sticks with it.