Darth Nyriss Darth Nyriss was a female Pureblood Dark Lord of the Sith who sat on the Dark Council for more than twenty years ( the third - longest tenure at the time ) . Biography . A female Sith Pureblood , Nyriss was an exceptionally powerful and ambitious woman . Darth Nyriss was one of the most talented and influential figures of the Sith Empire in her time . Perhaps her most notable accomplishments were the conquest of Drezzi , the destruction of Melldia , and gaining membership of the Empire ' s Dark Council on the basis of her talents . However , the Dark Council in her time was rife with internal power struggles and plotting . Nyriss , in particular , was subjected to several assassination attempts . Due to these occurrences , the Sith Emperor advised Nyriss to temporarily seclude herself from the Council ' s politics until the matter was resolved ; she resided in a well - protected citadel on the western edge of Kaas City during this time . The Sith Emperor also suggested Nyriss to hire an agent who would be detached from the Council ' s politics and help her investigate the matter . However , Nyriss had plans of her own , which she put in to motion once a renowned warrior called Lord Scourge arrived in Dromund Kass to assist her . By the time Nyriss met Scourge , her physical appearance had degenerated immensely as a result of the powerful dark side rituals that she chose to delve in ; she was highly proficient in the arts of Sith sorcery and strong in the dark side of the Force . Nyriss was once very beautiful and could easily afford the procedures required to retain her youthful appearance but she chose not to , possibly to flaunt her strength in the dark side or that she didn ' t care about superficial appearances . Nyriss ' s plans went beyond the elimination of her enemies who wanted her dead ; she was among the co - conspirators on the Dark Council who planned to destroy the Sith Emperor . When Scourge found about this , he confronted Nyriss to ascertain her true motives . However , Nyriss still deemed his usefulness and revealed some terrible secrets of the Sith Emperor to Scourge to buy his allegiance . She even took Scourge to Nathema — former homeworld of the Sith Emperor — to prove her claims . Nyriss was responsible for Revan ' s capture on Nathema and held him captive for several years in her stronghold , until the Jedi Master managed to turn Scourge against her on the basis of his talents and teachings . By this time , Scourge was not just ready to remove Nyriss from the picture but was also willing to help Revan in his plan to assassinate the Sith Emperor . As part of this plan , Scourge revealed Nyriss ' s treachery to the Sith Emperor , who then decided to eliminate all possible threats to him on urgent basis . Soon after , the Sith Emperor ' s forces attacked and seized Nyriss ' s stronghold . Final confrontation and death . As the battle ensued , Nyriss headed towards the prison cell where Revan was being held . Upon approaching the stairs which led to the prison cell , she noticed a droid called T3 - M4 who raised alarm about her arrival . Nyriss unleashed a blast of power which sent T3 - M4 tumbling down the stairs in response . Nyriss then saw two guards approaching her position whom she blasted with a powerful burst of purple lightning . The deadly bolts reduced those unfortunate guards to charred smoking husks in an instant . As Nyriss approached the cell of Revan , she noticed the presence of another powerful Jedi named Meetra Surik in the room along with Scourge . Nyriss questioned Scourge about his motives but upon receiving no response from him , she realized his betrayal , and attacked him and the Jedi simultaneously . Neither Scourge nor Surik could withstand the might of Nyriss . With combination of her impressive speed , skills with the lightsaber , and power of the dark side , Nyriss subdued both of her powerful opponents simultaneously . Nyriss then paused to prepare for the killing blow as the air around her began to crackle and grow hot . While she gloated about her past accomplishments , Revan emerged from his cell , with his Jedi robe pulled over his head and his mask on his face . Nyriss unleashed a swirling storm of pure dark side energy to incinerate her opponents . Revan stretched out his hands , and absorbed the deadly power of the dark side . Revan mocked Nyriss and redirected her power back at her . Nyriss was engulfed by her own power and failed to prevent the deadly bolts from ripping her apart , reducing her into a pile of ash . Powers and abilities . Darth Nyriss was a master of Force lightning and favored it heavily . Darth Nyriss was also an expert in Sith sorcery rituals making her an expert in the field . She was also capable of using Telekinesis , Force speed and force shield to protect herself from attacks . Nyriss proved exeptionally capable in combat subduing both Lord Scourge and Meetra Surik . Darth Nyriss used Juyo in lightsaber combat and carried a standard red - bladed lightsaber . Behind the scenes . Darth Nyriss was first introduced in the novel " " by Drew Karpyshyn . In the 2012 reference guide " The Essential Reader ' s Companion " , Darth Nyriss ' name is consistently misspelled Darth Nyris .