Ninjor

Emerging from the wild creative energy of 1986's Copper Age, Ninjor made his comics debut in Masters of the Universe: The Search for Keldor, brought to life by the remarkable pairing of writer Steven Grant and a young Bruce Timm — yes, that Bruce Timm. A figure in the sprawling, sword-and-sorcery world of Eternia, Ninjor shares the page with titans like He-Man, Prince Adam, Skeletor, and The Sorceress across a handful of Mattel's Masters of the Universe comics, including Sneak Attack and The Powers of Grayskull. His catalog footprint may be small, but a debut co-created by Bruce Timm — before his legendary animation career — makes any appearance a genuine collector's curiosity worth tracking down.