King Sombra returns to Equestria, requesting a chance to be reformed like Discord, on the condition that Twilight be his reformer. Fascinated by Twilight's ascendance, Sombra intends to study and corrupt her, but things do not go according to pl
The impossible has happened, through all the pain and darkness, Twilight Sparkle succeeded in her impossible mission...mostly. King Sombra is still plenty rough around the edges, but despite being an old dog he's making an effort to learn new tr
Twilight has failed, or rather, she has succeeded. Her darkness is her power, and together with her husband, Queen Twilight has a new plan for all of Equis. War is brewing as the black castle rises, and hope is now but a happy memory.
Twilight learns of Sombra's past, and finds him alive but weakened. She decides to learn how to use his Dark Magic for Good, by taking him back to Ponyville.
Given the successful befriending of Discord, Princess Celestia deems that no longer will villains be defeated but instead reformed. Brought back from the dead and stripped of his powers, Sombra only wishes he could have stayed dead all along.