Lightning Dust

Lightning Dust is a female Pegasus pony who first appears in the episode Wonderbolts Academy and makes subsequent appearances in later episodes, IDW comics, and magazines. Her cutie mark usually consists of a lightning bolt and three stars. She leaves 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. She is called Lighting Dust in The Elements of Harmony Vol. II guidebook.

In When the Cold Breeze Blows Away, she will be the leader of the Washouts that she will be appeared in during the World War III