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/ThunderCats Lion-O use the orb's connection to Grayskull to teleport away. They appear in a newsroom and find themselves in a reality where He-man is based on Earth as a Superman like hero. When Mummator appears both He-Man and Lion-O grasp the orb together to use their combine will to get back to the Castle. Instead they find themselves in a reality where He-Man and Lion-O's allies have merged. Mummator takes advantage of their surprise and manages to get He-Man's Sword before Lion-O uses the orb to get them away again. As they arrive in a new reality they realize Mummator