Lightning Dust

Lightning Dust is a female Pegasus pony who appears in the episode Wonderbolts Academy and in the IDW comics' Friendship is Magic Issue #8. She shares her eye color and sometimes her cutie mark with Sassaflash, whose coat color is very similar to hers.

Lightning Dust's cutie mark consists of a lightning bolt and three stars. She is shown to leave a blue and yellow thunderbolt streak behind her when she flies, similar to Rainbow Dash's rainbow streak and The Wonderbolts' trail of lightning clouds.

Depiction in the series
Lightning Dust is shown to be a vigorous and highly competitive flyer who loves to test her limits. With her strong attitude, speed, and love for flying, she quickly forms a friendship with Rainbow Dash.

However, because of her competitive spirit, Lightning Dust is also very reckless and shows little concern for anyone who becomes a victim of her actions. This is shown when she ignores Rainbow Dash's injury during a team exercise, and again when she brushes off the fact that her tornado put Rainbow Dash's friends in danger. She also seems to be the only pony to have a bigger ego than Rainbow Dash.

Lightning Dust's recklessness and utter disregard for the safety of others eventually lead to her team leader status being taken away and given to Rainbow Dash.

Other depictions
In the IDW comics', Lightning Dust appears on page 16 and cover A, in both appearances behind Princess Luna and multiple other characters in Ponyville.

Lightning Dust is an available character in Gameloft's mobile game. She was added to the iOS version of the game on December 9, 2013 and on the Android version on December 17, 2013.

Merchandise
A mini-figure toy of Lightning Dust has been displayed at the 2014 American International Toy Fair.

On pages 20-21 of the upcoming book Winning Style, "Rainbow Dash and Lightning Dust can't wait for the flying competition at the Equestria Games. They work on their speed and agility while flying through the clouds."

Quotes
"Let me show you what I've got, ma'am."

- Wonderbolts Academy

"Ma'am, can you put the Dizzitron on maximum speed? I wanna push my limits."

- Wonderbolts Academy

"They should make us Wonderbolts right now."

- Wonderbolts Academy

"Hey, you snooze, you lose! Besides, Wonderbolts are supposed to be able to recover from a spinout. You saw them on the Dizzitron. They could use the practice. I mean, it's not our fault we're so much better than those other guys. Not every pony is destined to become a Wonderbolt. Only the best of the best, right?"

- Wonderbolts Academy