Darth Massif

Darth Massif, born Starn Keller, was a Jedi Master during the Clone Wars that joined The Clone Resistance after the Fall of the Republic. Once the Clone-Imperial War ended with the Resistance joining the Rebellion, a rebel group that Keller didn't really trust. As a result, he tried to take on the Empire himself but was defeated by Darth Vader and the Star Destroyer he was on was completely destroyed by the Empire and was left for dead. His body than flew through space before he was found by a group of rebel soldiers, who revived Starn. When he woke up, Starn gave into the Dark Side and killed all the rebel soldiers and took their ship. His ship was later found by remaining members of the Sun Guard, who captured him and took him to their master, the Muun sith lord, Darth Plagueis. Plagueis convinced him to become his new apprentice. After taking his new name, Darth Massif, became powerful in the Dark Side was soon was trusted enough, by Plagueis, and soon, the two sith and their Sun Guards launched an attack on the Second Death Star to try an kill Emperor Palpatine but were too late and the Rebellion destroyed the Second Death Star. Massif and his master than rebuilt the Sith Empire and declared War on the New Republic. This started the New Republic Wars which lasted from 5 ABY to 10 ABY, when Massif saw the darkness he had helped spread across the galaxy and killed his master, joined the New Jedi Order and became the Grand Jedi Master in 15 ABY after Luke Skywalker stepped down to train more jedi younglings.