Rainbow Dash has a freak accident while performing a Sonic Rainboom, and awakens to find herself in a strange new world, with strange new abilities.

Avengers and My Little Pony crossover.

Image Credit goes to Alienfirst : Link

After returning home from viewing a meteor shower, Rainbow Dash finds a green rock in her room that makes her violently ill when she touches it. As she and her friends work to find out what exactly happened, she will come to learn more about her past, her family, and her place in Equestrian society.

Cover Art provided by Supersheep64

Comments may contain spoilers. YOU HAVE BEEN WARNED!

A horrible Cataclysm has turned all of Equestria into a Wasteland of barren ash and twilight desolation. The Sun and the Moon have been destroyed. Everypony has died--including Princesses Luna and Celestia. But one pony miraculously survives; she is a lone wanderer, the last of her kind, surrounded by menacing creatures that hate her. She navigates the Wastes in an airship and scavenges off the blighted landscape to keep herself alive.

Then one day she meets an old companion who grants her a gift, the chance to go back in time to the warm and sunny days of Ponyville, where her dead friends live in happiness. How far will the last pony venture into this joyous age of Equestria, even if she fully knows that there is no way to change the horrible fate of everypony she loves?

2013 Edition: Smaller Chapters, Better Grammar, and a Few New Scenes

(A shout-out to Vimbert, pre-reader and gentlecolt)

Scootaloo discovers an empty cardboard box behind the post office.

This is where her day begins.

Solutions to war, famine, disease and societal collapse are not easily happened upon. For Celestia and Luna, the solution was a mystery for eons, until their top six battle mages forged a plan from their very essence. To unite their absolute individual powers into one worthy host. One who could put an end to the horrors plaguing the budding nation of Equestria.

Only one pony was ever worthy. His deeds and heroism ultimately culled evil and hatred from Equestria and allowed peace to reign. After this achievement, the power vanished of its own accord upon the natural death of its wielder.

However, it seems that something in the shadows has provoked the lost power's return in the form of a new carrier, and she's going to find out her true destiny through a series of literal trials by fire.

(Updated on 3/1/2019, I'm ashamed that its been almost 5 years since my last chapter update...)

This is my take on the origin of "Super Rainbow Dash." Shout out to the creator of Super Rainbow Dash, Super Klonoa. My apologies for not finding out who you were sooner!

Thanks to unexpectedly high ratings, this story has been moved from an experimental work to a full production. Edited by the Awesome Amazing Regular... uh.. "Solid" SolidFire.

Discord, for a master of chaos, was actually a very good planner. Despite the confidence that he would bring Equestria to its knees in mayhem, several millennia of experience had taught him to have a back-up, no matter what. And after watching from the sidelines as Princess Luna became Nightmare Moon, he knew he had found an ace in the hole. Despite his defeat, Discord's greatest trick was still to come.

You know what this means: Equestria's greatest Nightmare is back. And this time, she's not alone.

Edit: Featured 9-27-2013, first time I've had a featured story. Thanks to everyone who's stuck by this story in spite of admittedly slow updates!

Celestia, Luna, Twilight, and her friends bask in the mid afternoon sun after having a much enjoyable picnic. Rainbow Dash, who has grown bored of lounging around, decides that she wants to challenge Celestia to a race, proving who is the fastest in Equestria. Could it be the Supersonic Pegasus, or the Alicorn Goddess?

This story is a sequel to Rainbooms and Royalty

Alternate Universe (Dashverse): A continuation of "Rainbooms and Royalty" Ponyville goes to sleep one night only to find in the morning that every foal in town is gone! The ancient evil King Sombra has returned and stolen foals from all over Equestria. But why? What is his true purpose in stealing them? It's up to Rainbow Dash and her friends to rescue the foals and stop this evil once and for all. But it's a long journey and complications arise with the ponies that join them. How can they save Equestria and preserve harmony when there is disharmony among their own ranks?

This story is a sequel to Hot Heads, Cold Hearts and Nerves of Steel

DASHVERSE: (Takes place several months after the events of http://www.fimfiction.net/story/68962/hot-heads-cold-hearts-and-nerves-of-steel)

Rainbow Dash and her friends are off to Canterlot to help in the preparations for the wedding of Princess Cadance and Shining Armor! But once she arrives, Rainbow learns of a sinister plot against Equestria. What's worse, she can't even rely on her friends to help her because one of them is not who she seems...

This is an idea that wouldn't leave my head, inspired by Fairy Slayer's "Mommy Nearest," Aldea Donder's "Alicorn," SoundofRainfall's "Play" and RainbowDoubleDash's "Lunaverse"

Alternate Universe: Instead of Twilight Sparkle, Princess Celestia made Rainbow Dash her personal student instead! Follow her through the events of the 1,000th Summer Sun Celebration. A reimagining of "Friendship is Magic"