The Sorceress

From HallsWiki

The Sorceress is one of He-Man's biggest allies in the show He-Man and the Masters of the Universe. While she seldom can exit Castle Grayskull, she is quite powerful, and is responsible for He-Man having acquired his power sword. She is also the mother of Teela, making it either ironic or fitting that Teela defeated her to become the runner-up in the Battle of the Masters of the Universe, leaving the Sorceress to be a semi-finalist.