"OH! That would be the Elements of Harmony! They're the neatest thing! We each get a jewel necklace--Twilight gets a sparkly tiara--and we used them to defeat Discord and Nightmare Moon with rainbows that go pewpewpew-!"

A clawed glove wrapped over Pinkie Pie's lips, silencing her.

"What does the pink one speak of, pony?" He demanded of Twilight, who sputtered at his question. "Do these 'Elements' hold the power to resurrect humanity?"

"I'm... not sure." She returned, halfheartedly. "They're pretty powerful..."

"Where are they?"

"In Canterlot, the city on the mountains, but-"

He dropped Pinkie and stomped off, leaving her to flop around her stretched-out lips. Twilight saw that he was going out the door and in the direction of the city she had mentioned.

"W-wait! Stop!" She galloped after him.

And there came a day unlike any other-
When champions found themselves in Equestria united against a common threat.
On that day, they became heroes.
The invincible viking, Dovahkiin.
"What's a viking?" asked the dragonborn, turning to look at the the other champions.
Soma Cruz, Prince of Darkness.
"Hey, no- Just his incarnation/split soul/potential something or other," said Soma, arms thrown out to the side in a shrug. Even he was not sure what to call his situation.
The Dan, angriest hero there is.
"I have a last name you know- And who is talking anyway?" Dan had each of hands resting over both hips to look around.
Nathan Drake, fortune hunter and historian extraordinaire.
"I still don't know who Daring Do is supposed to be," Nate questioned with a raised eyebrow.
And Phoenix Wright, the first Avenger.
"That's copyright infringement! But we do need a team name..." Phoenix rubbed his chin in thought.
Humans, Assemble!
"You are not helping Pinkie Pie!"

(Interlude II is a mini guide if you want info and pics on the humans appearing in this story... So far.)
(Hey, don't be afraid to leave comments.)

Canterlot... For centuries, Canterlot was the shining gem of Equestria, the pinnacle of pony society. Now, it’s a reminder, a bleak and monolithic warning to the world. 

Changed by the chemical and technological poisons that plague the mountain, an abomination of nature, I wander the greatest disaster Equestria has ever seen. 

... I will escape eventually, and when I do, I hope my friends still see me as Twilight Sparkle, and not the monster that hides among the ruins. 

As a Royal Princess, it is Luna's responsibility to watch over the subjects in her kingdom. One of the ways she helps the common pony is to inhabit their nightmares, helping them to overcome their fears and anxieties in order to live stronger the next day. However, one night Luna steps into the dreams of a young filly and finds out that the pony is dying. With nopony else able to help the child, the Royal Princess realizes that she has no other choice but to help. Can Luna save the filly walking the line between life and death?