Origin of the Sorceress is the 73rd episode of He-Man and the Masters of the Universe, written by J. Michael Straczynski and directed by Marsh Lamore. The Sorceress tells He-Man the story of how she assumed her station as the guardian of Castle Grayskull, while they await a battle with the evil wizard Morgoth. This episode features the first and only appearance of Stridor in the series.