My name is Orion direct decedent of Altaïr Ibn-La'Ahad but I better known as The Immortal Assassin, last of Assassins Brotherhood.

When Twilight Sparkle was killed in the changeling invasion all of Equestria mourned. But when a mysterious figure in armor slays Chrysalis in front of the princesses they will learn that anyone can change. For better or worse.

Everything was going perfectly for Celestia. She was happy, married, and Equestria was thriving. Funny how everything can be stolen so quickly.