He-Man in black magic and all forms of combat. He was also shown to be extremely cunning and intelligent. Though his origin was mysterious, and the cartoon described him only as a "demon from another dimension", a tie-in comic implied that Skeletor's true identity was Prince Keldor (the older brother of King Randor), thus making him He-Man's uncle. It was revealed in the animated motion picture "He-Man and She-Ra: The Secret of the Sword" that Skeletor was Hordak's right-hand man until his capture (Hordak referred to Skeletor as "my old pupil" and Skeletor's throne-room in Snake Mountain as "my old throne-room"
He-Man this series maintained the double identity of Prince Adam and He-Man. On the planet Primus, Prince Adam posed as a traveling merchant and the nephew of Master Sebrian to disguise his secret identity. His transformation oath was altered slightly, to become "By the power of Eternia...". To tie in with a new line of action figures based upon the original toy line, a new He-Man cartoon series was produced in 2002-03 by Mike Young Productions again entitled "He-Man and the Masters of the Universe". This series retold the Masters of the Universe story from the beginning. He-Man's origin was told