Masters of the Universe: The Cosmic Key
Mattel · 1987 · 1 issue
About the series
In 1987, Mattel expanded the Masters of the Universe mythos with a single-issue comic, Masters of the Universe: The Cosmic Key. This standalone story delves into the lore of Eternia, centering on the titular artifact and its connection to the wider cosmos. While a brief entry in the franchise's comic history, it stands as a notable piece of the original Masters era, offering fans a focused adventure tied to the toy line's expansive universe.