When a mysterious Crystal Empire appears in northern Equestria, its surge of powerful magic causes Yuma Tsukumo, Astral, Reginald Kastle, Kite and Hart Tenjo, Orbital 7, and Tori Meadows to be flung from their home world and into the alternate universe where Alex Yuwell resides.
After befriending Alex, Twilight, and the rest of their friends, Yuma and his friends are sent to assist Twilight in saving the Crystal Empire from the ancient evil that once cursed it so they can return home.
______________________________________________________________________________________________
The Zexal characters here have their English names (because why would Japanese people be speaking fluent English?), but they shall be based off the Japanese version (mainly because there's more in terms of character development here), so rest assured, no, "I'm feeling the flow!" will be uttered from anyone's lips.
This is not so much a spin-off as it is a continuation of the Yu-Gi-Oh! Equus series, much like how Bonds Beyond Time was relevant to 5D's overall story. You will need to read Yu-Gi-Oh! Equus in order to better understand this fic.
Rated Everyone for mild language and simulated monster violence.