Lord Imperious

"My ally Tenebrae led an Empire out of the ashes and back into it. I and my loyal followers fled into the Unknown Regions and built an Empire so vast it could rival the Republic, the Eternal Empire and the Galactic Empire together."

- Imperious to Rey and Kylo Ren Imperious- known to the Old Sith Empire as The Ghost of Korriban and the Emperor's Will- was an extremely powerful Sith Sorcerer who stood beside Vitiate when he was needed such as when the Dark Council plotted against the Emperor. Imperious with the help of the Emperor completely disintegrated them without being anywhere near them and enslaving their conscious in never ending torment.

Born in 5175 BBY to unknown parents, Zidsos Siymai steadily grew his force powers and looked up to Naga Sadow for inspiration until the 2nd Battle of Korriban where his parents were killed and Zidsos was one of few survivors of the massacre. Bolstered by this massacre Zidsos took the name Imperious and assisted Lord Vitiate rebuild the Sith Empire and helped Vitiate gain supporters to become the Empire's new Emperor with Imperious the Will of the Emperor and the Ears of the Empire.

Vitiate and Imperious quickly grew powerful in the Force and taught each other abilities which then they would use against Slaves and Traitors. Imperious barely appeared to the Empire as he was constantly learning everything about the Force, the Light and the Dark. Imperious would discover the ability to change host bodies while maintaining consciousness. Imperious performed the ritual on Vitiate and a slave as a host which was successful. Later on Imperious would discover the Force ability to drain a person or animals life force and add it to his own.

Return of the Sith Empire
"This new Sith, Imperious what is he? Some unlucky Jedi caught in his path said they haven't seen powers like this before. The bodies are already decomposing how so?"

- Jedi Master Kreeak Nakri Imperious shared his knowledge across the Empire in hopes the Sith will become more powerful then ever and use these powers against the Republic. When Revan and Malak found the Sith Emperor, Imperious stood at the entrance and greeted the two Jedi and saying that they were expected. When the two Jedi looked at each other just to look back for Imperious to disappear without a trace they continued to their fate.

When Revan was locked up for the second time, Imperious and Lord Scourge interrogated Revan but he revealed nothing and they left him to the mercy of the Emperor. As the Sith Empire grew more powerful the Jedi wanted the Datacrons from Imperious in hopes that they would learn something that can help fend off these powerful Dark Sides powers. So the Jedi sent 6 Jedi Masters to attempt to steal the Datacrons and kill Imperious, Imperious discovered the Jedi before they entered his citadel on Yierus only a couple of light-years away from the Chrelythiumn System.

The Galactic War
When the Jedi arrived they sensed that Yierus was different than any other planet as this planet had a deep connection to the Force. The Jedi continued on until they met Imperious face to face, He stood tall in white and black pointy robed armor and his purple light saber ignited. The Jedi fought against Imperious but kept getting humiliated until 5 of the 6 gave in to the Dark Side and attacked him but again and again getting knocked down until they hopelessly submitted to Imperious. The Jedi that didn't turn ran but was disintegrated by a concentrated lightning attack from Imperious. He named his new apprentices Viyrla, Kiao, Sakun, Yalta and Zapal and ordered them to go back to the Jedi Temple and prepare for Darth Angral's attack by disabling comms and re-routing guards and ships in "Exercises" so the Sith could destroy a portion of Jedi.

When the Republic and Empire were at war once more, Imperious got more involved with the Empire eventually gaining a very large following of over hundreds of Sith and millions of Imperials as well as several Grand Moffs, Admirals and Generals. He gained following by demonstrating his abilities and preferring respect over fear to command his growing Power Base. Having ordered the construction of a new type of 3,200 meter Harrower dreadnought called Abomination Class Dreadnought equipped with a Concentrated Ion cannon. (Similar to the Silencer but disables ships) Imperious ordered his new apprentices to take command of these powerful ships and surround Republic bases as well as find a certain Rakatan weapon

The Emperor's "Death"
TBC later