Twilight decides to create a world without chaos and disharmony, and she's unafraid to assume tyrannical control of Equestria to do so. She's willing to kill anypony that stands in her way, no matter how bad it makes her feel. Trixie goes on a personal journey to try and stop her once best friend and mentor. Third Person, but the POV switches every chapter, kind of like Game of Thrones.