What if Emziko was Canon?

Arc One: Seeking Justice
Act One: The Green Dragoness

As a male narrator begins to speak, a picture of various dragons of various colors is being painted, with the end point painting a purple dragon next to a dragon wielding a sceptor that has a red gem on it.

Like Ponies, dragons come in a verity of colors. Of all these colors, purple is the absolute rarest of them all, as only one purple colored dragon is born every ten generations. Purple Dragons are said to be revered in Dragon Culture, and are treated as upper class compered to every other dragon that isn't the current Dragon Lord. While it's common for these Purple Dragons to refuse a position of leadership, Dragon Lords have sought advice from Purple Dragons in the past.

Then, a map of Equees suddenly shows up; with highlights going on as the narrator continues.

In the era of where Celestia rules the Pony Population, the current dragon lord is known as Torch who has a daughter by the name of Ember; named after an ally to a Purple Dragon that existed long before even Queen Faust ruled the lands of Equestria. To this day, the Dragons are awaiting the sighting of the new Purple Dragon to grace the land, not knowing that one already exists. The current Purple Dragon is called Spike, and he lives in Ponyville as the assistant to Twilight Sparkle. He has lived his entire life, not knowing of his true nature.

Much has already happened for the young dragon, and even before he was born. Luna; sister to Celestia; became Nightmare Moon. Celestia attempted to reason with her sister, but negotiations proved fruitless. The white alicorn had no choice but to use artifacts called "The Elements of Harmony" to banish her sister to the moon. It was only one thousand years later when Luna was saved by Twilight and her friends, that Luna stood to listen to reason. Of course, the second major event in this Purple Dragon's life was when Discord broke free of his prison, only for Twilight and her friends to imprison him in stone once more.

Now as the dragon migration is about to take place, it will send Spike on a collision course with a dragoness who knows about the details surrounding The Purple Dragon. This Dragoness has her own agenda, for she is seeking justice for the ponies she came to like had been most likely killed by an unknown assailant. This dragoness is on a journey to find the ones responsible for destroying the village she comes from, and bring the culprits to justice.

The hand of fate is about to bring these two unlikely dragons into a collision course, that will alter the course of known history...