Here are some facts about Wind Rider, who is one of the worst ponies in the show's history:
* Wind Rider is widely regarded as one of the most hated ponies in the show's history, as well as one of the worst antagonists ever
* He is the second character who has Jan Rabson as his voice actor, following Mulia Mild (Season 2). He is also the last one to date.
* He, along with Fire Streak, are the only ponies who used to have been members of the Wonderbolts.
* He is the second antagonist who encountered Spitfire, the first was Lightning Dust (Season 3).

You can find a little more about him here

This is one of three ponies I'm doing today, the other two being Cinnamon Chai and Stormy Flare.