At the end of the Chrysalis incident, a powerful blast powered by love, sent all the Changelings away from Equestria, but one Changeling was unlucky enough to receive the strongest part of the blast and left Equestria altogether, his name was Excalibur.
Excalibur watched as Princess Cadence and Shining Armor rose off the ground surrounded by somesort of magic, Excalibur and the other Changelings caught a whiff of some pheromone sent by their queen, commanding them to stop them, but Excalibur was the only one who attacked, but it was too late.
He charged them and almost as soon as he landed on Shining Armor's back, a powerful blast hit him and he was sent soaring into the sky and beyond. It was a pain unlike anything he'd ever felt before, it felt like his carapace was set on fire and he was trapped inside it. He left the bonds of Equestria and was still propelled by the force of the blast away from his home, and all he'd ever know.
Excalibur could only watch as he sped further and further from his home. He watched all the points of light speed past him and he realized something, he was running out of air he writhed in the vaccum of space trying to get air into his lungs, but it was no use, for there wasn't any air. he felt himself slipping away and his eyes began to close slowly, and the last thing he saw was an extremely green planet getting ever closer.