Scorpan (Friendship is Magic)

Scorpan is a male Gargoyle and the brother of ; both of them were princes of the Infernal Lands as the children of the Centaur King Vorak and the Gargoyle Queen Haydon.

History
Some time before the Pony of Shadows was banished, two brothers traveled to Equestria so that Tirek could realize his dream of claiming all pony magic for himself. After befriending Star Swirl the Bearded and seeing the way the ponies lived, however, Scorpan tried to dissuade Tirek from his evil path. Tirek refused, and so Scorpan alerted Princesses Celestia and Luna to his plans. Tirek was stopped and imprisoned in Tartarus, and Scorpan left Equestria to return home, leaving his brother a medallion in memory of their former bond. Over a thousand years later, Tirek would pass it on to Discord as a token of their alliance, only to betray him later and inform him that the medallion meant as little to him as his brother had.

Tirek's treachery would be his undoing, however, as the medallion would be passed from a repentant Discord to Twilight Sparkle, becoming the final key to the Chest of Harmony and the Rainbow Power that was used to defeat Tirek. Some time later, one Hearth's Warming Eve, Discord would use the phrase "Oh, for Scorpan's sake!", in a similar fashion to the way ponies use the names of Celestia, Luna, or Star Swirl. On another occasion, he was mentioned by Mudbriar in response to a Trivia Trot question related to Tirek.

Trivia

 * At one point, My Little Pony: The Movie was to have featured a prologue scene in which the Staff of Sacanas was taken from an aged Scorpan by the Storm King. This scene ultimately did not make the final film, and it is unknown whether it could be considered canon.