My Little Pony: Friendship Is Magic Season 2 Episode 8 The Mysterious Mare Do Well Episode Title:The Mysterious Mare Do Well.Episode Description:Rainbow Dash's flying abilities make her a hero around Ponyville, but she lets the publicity go to her head, and her friends are concerned. Later, Rainbow Dash finds she is being upstaged by a masked hero, Mare Do Well, who appears to be a winged unicorn. Angered by the competition, Rainbow Dash chases Mare Do Well only to discover that all of her friends had a role in playing Mare Do Well. They had worked out this plan to help show Rainbow Dash the dangers of letting praise go to one's head, and she thanks them for revealing her folly.