Twilight Sparkle has too much magic, and it will take her decades to learn to control it. Her spectacular loss of control during her entrance exam only proves that fact. She is a danger to herself and others.

After Sunset Shimmer’s disappearance, Princess Celestia needs a new student to bear The Element of Magic to defeat Nightmare Moon. With all of Equestria at stake, Twilight Sparkle…is not the pony she needs.

Princess Celestia seals Twilight Sparkle’s magic with the distant promise of one day teaching her.

But there are two diarchs of Equestria. Amidst a lucid dream, an offer is made.

“Hello, Twilight. Would you like to be my student?”

Cover art provided by Lafiir.

On secret assignment from Princess Celestia herself, Twilight investigates a powerful magical artifact for clues to the mystery of Luna's transformation in the evil Nightmare Moon. Incautious use of the artifact sends Twilight hurtling back in time. Can Twilight discover what caused Luna's transformation? And will she ever make it home again?

Kickass cover art used with permission from Bitz.
http://allthebitz.tumblr.com/

In the far reaches of Canterlot Castle, high above in the towers lived the archmage. Everypony knew her, yet few had met her.

Twilight Sparkle sighed, having teleported away another noble seeking favors before reaching the top of the stairs for the second time today. They never learned. As the archmage, she already dealt with political squabbles far too often without inviting them into her home. Aside from personal favors for Celestia, she did what was required of her position and then returned to seclusion and research.

The nobility grumbled that no archmage should be a commoner, and Twilight’s disrespect toward them proved it. Each and every time they were forced to bow to her, they hated what they saw: the position, the status, the deference.

Was she not powerful? Was she not great?

Twilight, now reading through dusty scrolls and long forgotten tales, wrote in her notes — notes gathering dust of their own. A brief thought flashed through her mind.

Am I not powerful? Am I not great?

And then Twilight picked up The Tale of the Royal Pony Sisters.

Defunct side stories told in Across the Boundary. They can still provide a little context, but when in doubt, the main story here is canon.

Cover art provided by Lafiir

What if the villains were allowed to win without a fight? Would all of their plans bear them the fruits they so desired?
Probably not, especially when their royal adviser is Twilight Sparkle.

A collection of (continuous) One-shots in which our heroes don't have any epic fights with villains, and simply allow the power of logic to crush all of the hopes and wishes of the would-be rulers of Equestria.

Currently up: Nightmare Moon, Discord, Chrysalis, Sombra (bonus chapter - the fight is so not-epic it happens off screen).

The summer season was just about over at Stella Lacus adventure summer camp. Amie and her younger brother Wes were eager to return home. Unfortunately for them, their adventures had only just begun.

All at once, the entire summer camp and the mountain it was built upon shifted universes, leaving Earth behind for a far stranger world. In the same moment, every camper, counselor, and staff-member transformed into strange insectoid creatures, with unknown powers and incomprehensible needs.

Instead of returning to nursing school, Amie has a new goal: keep her little brother alive. If only the other campers didn't look at him like food...

Updates every Saturday. Editing by Two Bit and Sparktail.

Awesome cover by SimonDrawsStuff.

This story was sponsored by Canary in the Coal Mine on my Patreon. Thanks so much for your support!

A magician never reveals her secrets. The Great and Powerful Trixie just happens to have a few more secrets than most magicians. For example, she’s actually a princess of Transylmaneia. And she may or may not have doomed Equestria to eternal night. That's not even the biggest secret, either.

An entry in FanOfMostEverything's Imposing Sovereigns II contest, for the prompt Trixie / Coronation. Set between seasons 8 and 9.

Cover art by pixelkitties.

Recommended by Seattle's Angels!

This is a fic based on the Time Loop Files, the format of which was first codified by Innortal on fanfiction.net.
Here's a brief guide.
The basic idea is, one character (the Anchor, usually the main character of a fictional setting) is looping back to the very first moments of their parent series every time either they die or some kind of time limit expires. They of course end up monumentally stir crazy given enough time.
Eventually others start to loop as well.
The reset is not always perfect. Sometimes a loop's history will be different to the "prime" loop, or canonical plot.
"Crossover" or "Fusion" loops also occur, randomly. These can involve the home loopers having a guest, or the anchor for one universe spending time in another, or replacements of one character by another.
Vacation Loops are where the Anchor (or others) decide/s "buck it" and lets off steam by doing whatever comes to mind. There's little or no attempt to maintain the original timeline.

In addition, and particularly more recently, it should be known that this story has a collaborative element to it - people may submit loop ideas or loops, ideally at the Spacebattles thread (a link to the current version of which is on the Trope page), and they may become included.

There's two page image options, thanks to Filraen - the current page image has been edited by the original creator from this work of theirs.. The other one is here:
http://hourglass-vectors.deviantart.com/art/MLP-Loops-466030169