King Sombra

Intro King Sombra's design depicts his incarnation as both a solid creature and a flowing mass of smoky darkness. His lack of color suggests his evil demeanor, punctuated by his blood-red eyes and royal cape. As a pony, he has a body structure that is bulkier and more eleongated, alluding to his status as a once-powerful ruler of the Crystal Empire. In his true form, King Sombra is a fierce-looking demonic unicorn with a gray coat, red eyes with dragon-slits, a flowing black mane and tail, a red curved horn and sharp teeth. His attire consists of metal armor, a red royal mantle and a grey helm with two curved spikes on each side, a tiny cylinder on the front between two red spikes and three black parts that cover his muzzle and sides of his face. By Season 9, the grey lines on the muzzle part of the helm are gone. At some points, his irises become green with purple smoke coming out, and when forcing anypony to see their worst fears, his eyes turn completely green with the pupils disappearing for a moment. In shadow form, Sombra appears as a shadowy mass with only his eyes visible. Later, he shows off his muzzle, two fangs and his horn.