Darth Sion (Drewton)

Darth Sion, titled the Lord of Pain and previously Lucien Draay, was a and later. In 3,963 BBY, the surprised and horrified him as he revealed himself as a servant of the  and his father, Barrison Draay. This created a schism between the and the, and this led to Lucien killing his father in anger. His plan to kill five Jedi Padawans as well as his own was discovered by the Council, and he was exiled from the Order. Not long after, he joined the led by Revan, also known as the Revanchist.

He was severely injured in the in 3,960 BBY when the  was activated. Left to die, he was consumed by the dark side of the Force and later found by his mother,, who herself had fallen to the dark side when she walked the surface of the planet. There, they started and took the names Darth Sion and Darth Traya. The Dark Lords of the Sith found and manipulated a being—or half of one—spawned by Sion's own former Jedi Padawan, Zayne Carrick.

When the concluded, he was an important figure in the  along with Darth Nihilus and Darth Haagen. Years later, in 3,951 BBY, he was killed by his former Padawan, Zayne Carrick, another exiled Jedi.