One of the very few Filmation characters to appear in more than one episode. I think he could make an awesome MOTUC figure. He kinda reminds me of Magneto except substitute Magneto's magnets/magnetism powers and knowledge for Negator's electrical/electronics evil mastermind supervillain genius.
Oh and here's a sweet custom by Faceless One: http://www.he-man.org/forums/boards/...d.php?t=182880 (See I do use the search feature, although it's not always my friend!!)