Originally, part of The Many Destinies of Sunset Shimmer

Sunset always knew that she was different to other people and ponies, she thought that was because she was a pony that lived among humans in another dimension. The truth goes beyond her wildest dreams and it will create ripples that will change the history and destiny of Equestria and many other planets.

A great monster has appeared on Equestria bringing destruction and despair. This creature came from space alonside his army and no power in Equestria is capable of stopping him, not even the Elements of Harmony and their Rainbow Power.

Now Sunset Shimmer is mad, anger feeds her power and a golden aura points the road for her. To find her true Heritage somewhere on space.