Masters of the Universe

The battle between He-Man and Skeletor on the planet Eternia, and a follow-up series, She-Ra: Princess of Power revolving around He-Man's sister She-Ra.

He-Man. created by Mattel, first appeared in 1982 and although the initial run was until 1988 since then these characters have entered the mainstay of fiction, with comics, magazines, films and tv-shows never far from shelves.