Tirek

Tirek (voiced by Markipier) is an evil dick and the main antagonist of Twilight's Kingdom. Tirek and his brother Scorpan had a plan a long time ago to rule Equestria together, but soon Scorpan came to befriend the ponies, and tried to get Tirek to abandon their plan. Tirek was imprisoned in Tartarus and Scorpan went back to his home. But many years, Tirek escaped and began stealing magic*snort snort* from ponies. Princess Celestia sent Dickord after Tirek, but Tirek offered Dickord something better than friendship...WEED! Together, Dickord and Tirek stole magic from unicorns, pegasi, and earth ponies. Soon, Tirek became so powerful that he even stole Dickord's magic, having no use for him anymore. All that was left was the alicorn magic, which he attempted to take from the Princesses, but they gave their magic to Twilight Sparkle, believing Tirek wouldn't know of a fourth princess. But Tirek did find out, and fought Twilight for the magic, only to reach an impass. Tirek made a deal with Twilight. The safety of her friends (including Dickord) for all the Alicorn magic. Twilight Said "fuck you bitch and fuck Dickord" and then she shot tirek.

Trivia:

 * In Twilight's Adventures series, he was not imprisoned forever, because he was released from Tartarus again by the Egyptian God of Chaos and ruler of the Heylin Empire, Shet, and Tirek helps his lord and masterbaiter and the villains of Heylin Empire to steal magic from The Rainbitches and annihilate them for good and rule The strip club, man...and then the entire world. He soon became one of the Rainbitches and Team Owl's most powerful, feared, hated and dangerous Heylin Pimps