Darth Tenebrous's Sith Master

"&hellip;each successive Sith Lord improved on it, Tenebrous and his Master most of all, though they wasted years attempting to create a targeted virus that could be deployed against the Jedi, separating them from the Force."

- Darth Plagueis discusses the Sith Master's and Tenebrous's role in advancing the Grand Plan with Darth Sidious

A Twi'lek Dark Lord of the Sith reigned as the Sith Master of the Bith male Darth Tenebrous during the final centuries of the Galactic Republic. The duo followed the lineage of Darth Bane, adhering to its Rule of Two. During the Master's reign, the Twi'lek opened a hole in the Force, allowing the Jedi Order to feel the dark side for the first time eight centuries after the ending battle of the New Sith Wars. Eventually, the Twi'lek was slain by Tenebrous, who carried the Sith imperative forward by taking the Muun Hego Damask as his apprentice, dubbing him Darth Plagueis.

Biography
In the final centuries of the Galactic Republic, a Twi'lek was sensitive to the Force, eventually ascending to the rank of Dark Lord of the Sith as part of the Order of the Sith Lords. In keeping with the Rule of Two which limited the Sith to a Master and apprentice, the Twi'lek Sith Lord eventually took the Bith male Rugess Nome as his pupil, naming him Darth Tenebrous. The Twi'lek Sith Master and Tenebrous were dedicated to advancing the Grand Plan, which was a Sith imperative focused on destroying the Jedi Order and the Republic. The pair worked for years to develop a virus that would target a Jedi's connection to the Force and sever it. However, the project was ultimately abandoned by the Master and Tenebrous. At some point during the Sith Master's reign, the Twi'lek opened a rift in the Force, allowing the Jedi Order to sense the dark side of the Force for the first time in the eight centuries since the final battle of the New Sith Wars.

Tenebrous's Sith Master burdened the Bith with studying the Force, which Tenebrous viewed as simple. The Bith eventually came to believe that the Force was an energy source that he could manipulate in order to achieve his goals. After reading the prophecies in the Journal of the Whills regarding the Chosen One who would bring balance to the Force, Tenebrous was determined to use a variation of the essence transfer&mdash;a Force technique which enabled its user to transfer their consciousness into another body&mdash;at the moment of the individual's birth, thus making himself the Chosen One. During or after c. 167 BBY, when Tenebrous' calculations for his scheme were complete, the Twi'lek was slain by his apprentice, who went on to take the Muun Hego Damask as his apprentice, naming him Darth Plagueis.

The Sith Master's roles in advancing the Grand Plan to topple the Jedi and the Republic and opening a rift in the Force were acknowledged by the Twi'lek's eventual successor, Darth Plagueis. The Muun Sith Lord recounted the Master's and Tenebrous's achievements to his apprentice, Darth Sidious.

Personality and traits
The Twi'lek Sith Master was dedicated to the Sith initiative to topple the Jedi and Republic. Despite the Master's and Tenebrous' attempts to create a virus that would separate the Jedi from the Force, they ultimately abandoned their efforts. Tenebrous viewed his Master as simplistic and tottering.

Powers and abilities
Tenebrous's Master was capable enough to cause a rift in the Force which enabled the Jedi Order to feel the dark side's presence for the first time since the New Sith War's final battle. However, the Twi'lek was not able to withstand Tenebrous, who slew his Master.

Behind the scenes
Darth Tenebrous's Sith Master was first mentioned in the short story The Tenebrous Way, which was written by Matthew Stover for Star Wars Insider 130 and released in December 2011. The Sith Master was later mentioned in the novel Star Wars: Darth Plagueis, which was written by James Luceno, and was published on January 10, 2012. Tenebrous's Master's species was established as a Twi'lek in the novel.

Appearances

 * Star Wars: Darth Plagueis
 * Star Wars: Darth Plagueis