I will not stop the wheel. I will break the wheel.
Zayin was born on Thillon, a planet in the Outer Rim. He was the son of a rich Sith Lord. When his force sensitivity was discovered he was sent to the Sith Academy on Korriban. He was trained by numerous Sith Masters until he reached adolescence. After that, the Dark Lord of the Sith Darth Ouzal took him under his wing.
After Zayin completed his training, he gained the status of Sith Lord. He became obsessed with the idea of immortality and invested the majority of his career into becoming an immortal. He went so far that he even replaced several parts of his body with cybernetic implants. He eventually succeeded, as he was able to survive for hundreds of years, far past a normal human lifespan. Because of his expert knowledge of Sith technology and knowledge as well as his long experience as a Sith Lord, he was allowed a position on the Dark Council as head of the Sphere of Technology. He was know known as Darth Aggath. Already deep in his thousands, he became the master of Lord Garth.
Darth Aggath original body was killed by a Jedi death squad. Shortly after his original death he became attached to the Force. He was severely weakend, but he was alive in some way as a ghostly apparition. He possessed various body's and they all died over and over again.
Around 100 BBY Aggath's followers attempted to create a total new body were he could manifest himself in. Through numerous dark rituals Aggath's followers finally created a new, proper body. Darth Aggath returned to full strength and all of his powers were now enhanced.
Aggath's shattered soul was forever erased from existence, but that hasn't stopped several Sith from revering him. He was respected by many other Sith Lords, both his allies and rivals. And even to this day, he is still seen as a force of evil.
Personality and traits
Darth Aggath was an arrogant and dangerous individual. He became even more malevolent after his original death. He was also very disciplined and cunning, using his brain before his brawn. He was responsible for the death of thousands of Jedi during his campaign into achieving immortality. Aggath was also noted as a capable battle commander.
Powers and abilities
Because of his approximately 4,000 years of experience, Aggath was incredibly skilled in Lightsaber combat, as well as being an expert in force using. He utilized the Shien form more often. And so, he used quick, ruthless and powerful strikes to tire and weaken his opponent. Aggath was also noted for being an expert in Sith knowledge. He used this to his advantage so that he could possess various body's to avoid death. After he found a suitable body he could enhance himself it with various Sith rituals.