King Sombras Umbrum
Description YT
In a flashback, Sombra looks down gleefully from his castle at a chain-gang of Crystal Ponies, when two silhouettes of Princess Celestia and Princess Luna shoot a beam at him that turns him to "shadow" and banishes him to "the ice of the arctic north." Celestia says he was able to put a curse on the empire as he was imprisoned, which caused it to "vanish into thin air". Celestia demonstrates that if the empire is filled with hope and love, then those emotions will be reflected across all of Equestria, but if hatred and fear take over the Crystal Empire, black crystals sprout from the ground. When Celestia creates the crystals, her horn is engulfed in black mist and her eyes glow green and emanate the purple smoky trail the same way Sombra's eyes do, implying that she may have knowledge of his magic.
-Yes, she knows that Umbrum magic very well.
Music by Dandelion, the musical Ass.
Art from the show.
Pony.fm download: https://pony.fm/tracks/46537-king-sombras-umbrum-edm