Editing Masters of the Universe (section)

=Eternia=
The first half of the combined MotU-verse, Eternia was originally presented as a [[Sword & Sorcery]] world of the "magical [[Post-Apocalyptic]] remnants of a hyper-advanced civilization", leading to the [[Conan]]-esque tiger-riding [[barbarian]] He-Man facing off against tanks and [[cyborg]]s. The first cartoon in 1983 presented as slightly closer to a standard fantasy world, in that there were functional governments beyond tribes, but still left it with that iconic 80s S&S style mixture of magic and tech with no explanation given whatsoever. Also, it's an alien world - Prince Adam's mom is actually a human astronaut who visited the place and decided to stay and marry a local king.

Eternia is home to the legendary Castle Greyskull, a mystical fortress which is shaped so its front looks like a giant, slightly demonic skull and which houses ancient sources of magical knowledge and power that would elevate anyone who could gain control of it to basically the role of a living god. Naturally, this means the evil [[warlock]] Skeletor wants it for himself. Since the nameless sorceress who currently acts as Greyskull's glorified housekeeper suffers a curse that prevents her from using her power or even leaving Greyskull without being stuck in the form of a telepathic falcon, it relies on a guardian. That guardian is Prince Adam, who discovered the enchanted Sword of Power. By holding it into the air and speaking the magic phrase, "By the power of Greyskull", he is transformed into He-Man, who can draw upon the magical energies of Castle Greyskull to gain superhuman physical abilities. To protect his family and limit the amount of people who know about Castle Greyskull, Prince Adam treats He-Man as a secret identity, using a very Batman-esque routine of pretending to be a cowardly, klutzy fop to disguise the connection between them.