The storm is breaking on the Horizon.

It's been two months since the battle against Nightmare Moon. Luna is recovering, Celestia is busy turning the government back into a diarchy, and the Mane Six have returned to their lives. All seems well, but when Celestia discovers that half of the power of the Elements of Harmony have been transferred to each of the Bearers, she decides to send thirteen mysterious members of the Royal Guard to monitor them as they manifest and develop their new abilities.

The sins of a forgotten war still linger, and an ancient evil lurks in the shadows, just waiting for the right time to strike. The Mane Six suddenly find themselves once again at the heart of a conspiracy to bring about Eternal Night, and only by awakening their powers and realizing their full potential can they do anything to stop it. Friends both old and new will help them along the way, and an unseen force will guide them as it seeks to right a wrong made thousands of years ago. The Bearer's journeys will take them outside the borders of Equestria and into the world beyond, and when they return, they'll have the power and experience necessary to save the world and bring about balance in all things.

The Powers of Harmony TV Tropes Page (SPOILERS)
The Powers of Harmony Art

Thanks to Wildy71090 for the cover pic.

On a dark night filled with even darker magics, an insane cult attempts to give Nightmare Moon a body and life of her own, utterly separate from Princess Luna. But, when the spell is interrupted by Celestia, something unexpected is created.

Now, a little black alicorn filly named Nyx finds herself living under the care of Twilight Sparkle, only to be haunted by memories and emotions from her past. Is she Nightmare Moon reborn or is she simply a doppelganger with a soul and mind of her own? Can Twilight Sparkle protect Nyx from those who refuse to see past her dragon eyes and black coat?

Or, will Nyx be forced to inherit the sins that may not even be hers and become the greatest evil Equestria has ever known?

Twilight Sparkle never was a Unicorn and she didn't even know it.
What happens when her true heritage comes to light? Will she willingly embrace it? Or will she be forced to?

Beware of spoilers in the comments!

Edited by uTTerAbsurdity, Zervziel, Stormwatch and Gwenio

Cover art by the talented Cartoonlion and colored by the equally talented Stormwatch, original can be found here

Click here for the Tvtropes page

Mort, also known as the Pale Pony (of Death), has been tasked to take time off from his rigorous duties of reaping souls. Seeking guidance, he is directed towards the town of Ponyville, to learn about the magic of friendship from Twilight Sparkle and her friends. All he needs to do is keep his true nature a secret. That shouldn't be too difficult...right?

Special thanks to Specter-Von-Baren and Pyrite Foolsgold for their help in proofreading and editing this story, as I really needed it. Additional thanks to Pilate, Chuckle5, Unimpressive Vagaries and Admiral Biscuit as well! Couldn't have done it without all their help!

Credit for the title card goes to Siansaar, AKA Carnifex.

For another excellent take on Mort, check out Sip's version!

TTS Reading of the entire fiction: Courtesy of the FanFiction Reader on Youtube.

Character List: Courtesy of TruthHut (A work in progress)

Handy is not a happy man at the best of times.

He was even less happy to find himself in an alien world that offended the very laws of physics and got injured for his own stubborn refusal to accept the obvious path fate had apparently laid out for him.

For his trouble he is now on a journey, with the long term goal of finding his way back home, only to find himself involved in plots and machinations so far above his head and cares that he quickly becomes a pawn in a game played by powers who care not for his well-being.

Quite like his life back on Earth if you think about it.

Needless to say, Handy does not care for any of it. He is much more preoccupied with the more immediate and pressing mundane concerns of day to day life a human needs to worry about while in Equestria.

Obtaining a new pair of shoes for example.

All this and one almighty hangover, what's the worst that could happen?

Rated teen for harsh language and minor violence

Proofread by JBL, Jude and Usurper

A three arced story that begins slowly as partially Comedy and Slice of life and rotates more towards Adventure and Dark in later chapters.

Some school fillies have to deal with school crushes. Others with bullies. Sometimes they have to deal with both. But no filly has ever had to deal with an Evil Tyrant being bound to their shadow and have the power to control their every action. This, of course, seems to be no big deal for Sweetie Belle who seems to even enjoy the stallion's company. Though the feelings aren't mutual. The small filly reminds the old king too much of a filly he used to know... Though it's strange the only place he'd seen her before are in these strange dreams of his. Recollections of a past he can't remember.

Perhaps Sweetie Belle will awake in him that version of himself before he was a Tyrant. Before he was labeled evil. A time from when he was a father. Perhaps she will help him forgive.

First featured on 9/4/2014!

The cover art was sketched by me and colored by the very talented Midnight Sonare

Loyalty; Generosity; Laughter; Honesty; Kindness; Magic;
These are the pillars upon which Equestrian society stands. Upon these principles, Harmony is maintained, and civilization flourishes.

But there are other magics in this world. Intelligent life requires three things:
Wisdom, to decide upon an action.
Courage, to go through with the action.
Power, to carry out the action.

An individual with Wisdom, Courage, and Power... can change the world.

Evil unlike any Equestria has ever seen has come to the Everfree, and through proximity, Ponyville. The Mane 6 must attempt to overcome the darkness they are faced with; it will not be easy.

But they will not face such evil alone.

The Hero has come.

A Legend of Zelda Twilight Princess and MLP crossover.

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.

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