Exar Kun Exar Kun was a Jedi Knight who fell to the dark side , assumed the mantle of Dark Lord of the Sith , and waged a destructive war against the Galactic Republic and Jedi Order during the era of the Old Sith Wars . A Human male , Kun was apprenticed to the respected Jedi Master Vodo - Siosk Baas , and in his days as a student he came across forbidden knowledge of the history of the Sith . Extremely confident in his own abilities and naturally quick to anger , Kun was filled with a burning curiosity regarding the Sith , and soon went on his own quest to find out as much as he could . Kun ' s search led him to the planet Onderon , which had once been ruled by a Sith Lord named Freedon Nadd . With the help of a pair of Nadd ' s followers , Kun came across Nadd ' s tomb on Onderon ' s moon Dxun , and there was confronted with the spirit of the dead Sith himself . Seeing in Kun a potential avenue to regain a physical form , Nadd directed the young Jedi to the ancient Sith homeworld of Korriban . There , Nadd conspired to grievously injure Kun , only healing the man when he accepted the dark side into his heart . Kun ' s next stop was to the moon Yavin 4 , a place with its own Sith history — Kun enslaved the primitive Massassi living there and compelled them to build extensive temple complexes across the forested world . Soon afterward the fully corrupted Kun banished Nadd ' s spirit , having never trusted the old Sith , and in the process learned of several other nascent dark side users who had learned from Nadd . Seeing Nadd ' s other apprentices — Satal and Aleema Keto , Tetan nobles who had founded the Krath cult and conquered their native star system — as a threat , Kun set out to destroy them . On Empress Teta , Kun encountered Ulic Qel - Droma , a Jedi Knight who had lost his Master to a Krath attack and had gone undercover within the group to seek revenge . Qel - Droma had been seduced by the dark side himself , and while the two briefly dueled , their battle was ended when the spirit of long - dead Dark Lord of the Sith Marka Ragnos appeared to proclaim the two fit to call themselves Sith Lords . Exar Kun was to be the Dark Lord of the Sith , and Qel - Droma his apprentice , and together they resolved to bring a Sith golden age back to the galaxy . Allied with the remnants of the Krath and the Mandalorian warrior clans , Kun and Qel - Droma commenced a bloody war against the Republic starting in 3996 BBY . In the early stages of the conflict , Kun traveled to the Jedi library world of Ossus , murdered the Jedi Keeper of Antiquities , Odan - Urr , and took possession of a rare Sith holocron . Kun then took several prospective Jedi followers back to Yavin 4 , where he used the holocron ' s power to corrupt them and reshape them into his Brotherhood of the Sith . Kun sent his Brotherhood out into the galaxy to kill their Masters and wreak havoc , while he headed to the Republic capital of Coruscant to rescue Qel - Droma , who had been captured after launching an ill - advised attack on the planet . Ever the showman , Kun burst into the Senate Hall in the middle of Qel - Droma ' s trial for war crimes , murdering Supreme Chancellor Sidrona and setting Qel - Droma free . On his way out , he was confronted by his former Master , Vodo - Siosk Baas — unable to talk the Krevaaki into joining his side , Kun instead unveiled his new invention , the double - bladed lightsaber , and killed Baas in a duel . Distrustful of Aleema Keto , who had been responsible for Qel - Droma ' s capture , Kun sent her to her death soon afterward , manipulating her into causing a massive supernova in the Cron Cluster that was sure to destroy the planet Ossus . Ahead of the Jedi Order ' s chaotic evacuation of the doomed planet , Kun and Qel - Droma descended onto Ossus and ransacked the Great Jedi Library for its ancient treasures . While Kun made it in and out with a sizable haul , Qel - Droma got caught in combat , killed his brother , was taken prisoner and stripped of his connection to the Force . Shattered by his brother ' s death , Qel - Droma switched sides and led the Jedi to Kun ' s base on Yavin 4 . In the ensuing battle , Kun refused to go quietly , conducting an ancient ritual to free his spirit from his mortal form so he could wreak havoc through the cosmos . He did not entirely succeed : while the ritual worked as intended and the Jedi thought him dead , Kun ' s spirit was trapped on Yavin 4 for the next several millennia . In 11 ABY , Jedi Master Luke Skywalker established a Jedi training ground on Yavin 4 , as he attempted to build a New Jedi Order after the old Order ' s destruction at the hands of the Galactic Empire . After thousands of years in isolation , Kun attempted to influence Skywalker ' s apprentices to do his bidding , successfully turning the young Padawan Kyp Durron to the dark side and severely wounding Skywalker . However , the rest of Skywalker ' s apprentices banded together and , with the help of the long - dead shade of Vodo - Siosk Baas , banished Kun ' s spirit and finally put an end to his schemes . Biography . Jedi sojourner . Training . A Human male , Exar Kun was discovered as a Force - sensitive and taken in for training by the Jedi Order several millennia before the Battle of Yavin . Recognized as an extremely promising talent , Kun apprenticed under the venerable Krevaaki Jedi Master Vodo - Siosk Baas , training on the planet Dantooine alongside the Cathar mates Crado and Sylvar . On Dantooine , Kun honed his skills with the lightsaber by frequently taking on the two Cathar in training duels . From the beginning , Kun harbored a deep , burning desire to become a great Jedi , and pushed himself extremely hard to achieve his goals . Possessed of great ability but not a Jedi Knight yet , Kun regardless had great pride in his own skill and believed himself ready to learn about forbidden knowledge and the history of the Sith . On one occasion in 3997 BBY , Kun sneaked into Baas ' hut and activated the Master ' s holocron , which contained a wealth of information about the Sith — it was there that Kun first heard the name of Freedon Nadd , a fallen Jedi turned Dark Lord of the Sith who conquered the planet Onderon and ruled as a Sith king . Baas soon discovered Kun with the holocron , and rebuked the young apprentice for his curiosity . As Kun was nearing the end of his lightsaber training , Baas instead sent Kun to summon Crado and Sylvar for another round of training duels . Kun swiftly and easily defeated the weak - willed Crado , before engaging the Cathar ' s fierce and determined lover Sylvar . At the beginning of their encounter , Kun attempted to make Sylvar doubt her Cathar heritage with taunts ; instead , it caused Sylvar to give into her instinctive rage and claw Kun across the face , severely scarring him . Kun responded with a furious outburst of his own , nearly striking Sylvar down , but Baas jumped into the fray in the nick of time and disarmed his apprentice . When Baas challenged Kun himself , Crado tossed the Human his lightsaber , daring Kun to prove his arrogance . Wielding only his wooden staff , Baas quickly found Kun ' s balance point and sent him flying with only a single blow . But as Kun lay on the ground , he spotted another lightsaber sitting only a short distance away , using the Force to retrieve it and arming himself with both blades . Summoning all his rage and power , Kun went back on the offensive , eventually smashing Baas ' Force - imbued staff in two . Kun took his leave of the Krevaaki Master soon afterward — his interest in the power of the Sith growing , he decided to venture to Onderon in his starship , the " Starstorm One " , to seek out the forbidden knowledge of Freedon Nadd . Destiny calling . Posing as a Jedi archaeologist investigating Freedon Nadd and the Sith on Onderon , Kun managed to gain an audience with Jedi Knights Cay Qel - Droma and Tott Doneeta , who were supervising the transformation of the Dark Lord ' s old starship into a Jedi outpost . Although Kun was interested in a trove of Sith artifacts that had recently been found in the lair of the dead Onderonian king Ommin , the two Jedi informed him that they had been instead ordered to be shipped to the Great Jedi Library on Ossus , while Doneeta offered Kun a tour of Nadd ' s court in the city of Iziz instead . When Kun insisted that he had to study the artifacts , he was rebuffed — Qel - Droma and Doneeta ' s Master , the Arkanian Arca Jeth , arrived on the scene and confronted Kun about his fascination with the dark side , revealing that he knew Kun was lying about being an archaeologist . Although Jeth attempted to banish Kun from Onderon , Kun resolved to continue his investigation without their help and raised ship for Iziz . After wandering the streets of the walled city for some time , Kun came across a pair of street preachers named Nebo and Rask , who were being assaulted by an angry crowd for speaking out against the Jedi and expressing Naddist sympathies . Kun rescued the men from their plight , and after an interrogation and a promise of gold , the two Naddists agreed to guide Kun to Freedon Nadd ' s tomb , which Master Jeth had hidden away in secret on Onderon ' s moon Dxun . Kun ventured on alone after reaching Dxun , easily slicing through the beasts that guarded the massive structure . To his dismay , however , Kun realized that the mausoleum itself was made out of Mandalorian iron , through which his lightsaber could not cut . After trying and failing to break into the tomb , Kun suddenly felt a strange power surrounding him , and on his next attempt he easily broke through the outer shell of the crypt . Although Kun had some misgivings about proceeding further , he nonetheless journeyed on — passing the sarcophagi of King Ommin and his wife , Queen Amanoa , Kun finally came across the skeletal corpse of Nadd himself . To Kun ' s shock , Nadd ' s spirit emerged from the coffin . Offering Kun a " gift , " Nadd ordered the Jedi to remove his corpse from the sarcophagus , leading Kun to find a pair of scrolls written by Nadd ' s former master . Nadd revealed that the scrolls would lead Kun to the " last home of the Sith , " where Nadd would meet Kun again to continue the young Jedi ' s journey down the dark path . Nebo and Rask attempted to rob Kun for the scrolls when the Jedi emerged from the tomb , but Kun lashed out in a burst of anger and quickly slaughtered the pair with his lightsaber . Although Kun was shaken and distressed by how easily he gave into his anger after being touched by Nadd ' s dark power , he could not dwell on these negative emotions for long — he was overcome with relief and excitement to have the scrolls in his possession , and felt ready to uncover the secrets that awaited him . Returning to the " Starstorm One " , Kun ran the scrolls through an electronic translator , learning more of the history of the Sith and the name of their final home : Korriban . Surrender to darkness . While the rest of the Jedi Order was meeting at the Conclave at Deneba , the ever - curious Kun was putting the " Starstorm One " down on the surface of Korriban , landing his ship in the long - forgotten tombs of the ancient Valley of the Dark Lords . As Kun descended into the valley , he was attacked by skeletal corpses made animate by dark side energy — after destroying several , he once again heard the voice of Freedon Nadd , which beckoned him into a nearby temple . Disturbed by the immense dark side power he felt within the place , Kun attempted to turn back and return to his ship , only to find that the exit had been blocked in a sudden rockslide . With no choice but to press on further , Kun followed Nadd ' s spirit through the halls of the temple until finally coming across a mausoleum containing a large crystal that held the spirits of Jedi Masters defeated by the ancient Sith . As Kun peered into the crystal , Nadd released the cataclysmic energy inhabiting the temple , bringing the whole structure down on Kun . Kun barely survived the collapse , clinging to life with his bones smashed in over a hundred places . As he lay motionless on the rubble of the temple , Nadd ' s spirit again appeared to Kun , promising that he could only be saved by surrendering to the dark side . Master Baas sensed Kun ' s turmoil light year s away , and although the Krevaaki attempted to shield Kun with the light , Nadd ' s spirit manifested itself and foiled the Jedi ' s efforts . His body broken and with no help coming , Kun was left with no choice but to accept Nadd ' s offer and surrender to the dark side . In an instant , Kun ' s bones healed and strength returned , although Kun experienced several moments of intense pain — his cries were heard through the Force as far away as Deneba , where the Jedi convocation had gathered . Made whole again , Kun rose feeling stronger than he ever had before . Nadd ' s spirit guided him to the resting place of many of the ancient Sith Lords , where Kun realized that he now had the ability to read the Sith language written on the sarcophagi . Although Kun maintained that he was still a Jedi and would never belong to the dark side , when Nadd roused several deadly tuk ' ata beasts into the room to test Kun , he found that he had lost his ability to draw on the light side of the Force . His lightsaber taken by Nadd and a tuk ' ata at his neck , Kun reluctantly called upon the dark side and his inner anger to retrieve his lightsaber and slay the beasts . The spirits of the ancient Sith announced their approval of Kun after this act , and although he still believed that he had not been seduced by the dark side , Kun decided to follow Nadd ' s bidding and complete his research on the moon Yavin 4 , where the Sith magic ian Naga Sadow had taken his followers hundreds of years before . Becoming the Dark Lord . Seizing power . Kun immediately charted a hyperspace course to Yavin 4 , landing the " Starstorm One " next to one of the ancient Sith temples that dotted the moon ' s landscape . When Kun disembarked he heard Nadd ' s voice again , although Kun maintained that he wanted nothing more to do with the spectral Sith . As Kun moved further into the jungle , he was attacked by a group of Massassi warriors — the mutated and twisted descendants of Naga Sadow ' s followers , transformed into violent and single - minded guardians by Sadow ' s magic . Again finding his access to the light side of the Force blocked and hesitant to use the dark side , Kun was injured by the Massassi ' s flying lanvarok discs and was quickly swarmed by the warriors while attempting to flee the skirmish , while other Massassi began removing parts from his ship and rendered it inoperable . Overtaken by several warriors , Kun was inspected by the Massassi temple priest Zythmnr , who had emerged from twelve years in solitude after sensing the commotion . Recognizing Kun ' s power , Zythmnr ordered his warriors to bring Kun to the Temple of Fire , where Kun was chained to a Massassi altar to be the honored guest at a blood sacrifice . Using the power of Zythmnr ' s Sith amulet and Naga Sadow ' s ancient magics , the Massassi summoned a mighty Sith wyrm , a Sithspawn beast created by Sadow that towered over the unarmed Human . The wyrm attacked Kun , and as the Jedi Knight struggled in the beast ' s grasp , he again heard Nadd ' s call , ordering him to call upon the dark side and save his own life . In that moment , Kun had his final realization — the time had come to cast aside the Jedi ways and give in to his rage . Suddenly finding that he could speak the Sith tongue , Kun channeled his anger and laid claim to the Sith amulet . With his anger multiplied a hundredfold by the amulet , Kun summoned an immense amount of power and energy , obliterating the Sith wyrm and a number of Massassi . Although Kun nearly lost control , he emerged victorious , and those Massassi that had survived honored him and pledged their service . The battle over , Nadd suddenly manifested himself again to Kun , expressing his delight with Kun ' s newfound power and declaring that it was time for them to begin work on Sith alchemy that could once again give Nadd a physical form . Instead , Kun decided that he had had enough of Nadd ' s orders and tests . With a single burst of anger , multiplied by the power of the amulet , Kun obliterated Nadd ' s spirit once and for all . In his last moments , Nadd appeared to two of his other dark students — the cousins Satal and Aleema Keto , leaders of the Krath cult , who had used their significant talent in Sith magic to conquer the Empress Teta system — warning them of Kun ' s power and declaring him to be a pretender to the Sith legacy . Dark secrets . By lifting the curse of Naga Sadow from the moon , Kun established himself as the leader of the Massassi on Yavin 4 , with the tribesmen believing that he was the returned Dark Lord of the Sith spoken of in their legends . Kun had little interest in titles , only power , and as such he ordered the Massassi to build massive temples in accordance with ancient Sith designs , in order to focus a great amount of dark side energy on Yavin 4 . The Massassi followed their " God - King " enthusiastically and reverently over the following months , building statues and monuments to him along with the temples — Kun was willing to allow the tribesmen to believe whatever they liked about him , as long as they continued to obey him . Kun additionally took the opportunity to further his control over the Massassi , imprisoning the souls of their children in a massive Golden Globe , held in the newly built Palace of the Woolamander . Kun began to draw energy off the trapped souls within the Golden Globe , which was bound with Sith magic that only could be undone by Force - sensitive children . For himself , Kun constructed a temple that would come to be known as the Temple of Exar Kun as a private retreat , adorned with Corusca gems and distinguished by an ebon statue of the dark side sojourner . Kun also continued his research into the moon ' s dark mysteries , eventually deciding to follow the draw of the dark side back into the Temple of Fire where he had defeated the Sith wyrm . Kun surmised that the wyrm was created to guard something older and more powerful , which he was determined to master . Kun plunged into the pit from which the wyrm had emerged , finding within a hangar that contained the " Corsair " , Naga Sadow ' s flagship that had brought the Massassi to Yavin 4 centuries before . First excited at the prospect of having a way off the moon , Kun found something more inside : Sadow ' s alchemy lab , containing a wealth of ancient Sith knowledge and alchemical lore that was previously lost . Parsing through the Sith scrolls he found in the lab , Kun discovered the process through which Sith magicians were able to modify living creatures . Kun was eager to put this knowledge to the test , and the priest Zythmnr agreed to be his first subject . In accordance with Sith legends that told of alchemy that could turn a warrior into a god , Kun began a dark side ritual in the Temple of Fire where the power of the dark side would transform Zythmnr into " the greatest of all the Massassi . " Indeed , when the ritual was completed and the matrix opened , Zythmnr was changed . Kun had infused the priest with a metallic bioarmor and enhanced his muscle mass and bone structure , along with giving Zythmnr razor - sharp claws and a hardened outer hide . Contrary to Kun ' s assurances , the process was excruciatingly painful for Zythmnr — the Massassi still urged that the process continue , and Kun finished the ritual by infusing Zythmnr with the dark side , using some of his own physical makeup as a template . Zythmnr took well to the treatment and showed promise with the Force afterward , encouraging Kun enough to repeat the procedure on several dozen other Massassi . On Yavin 4 , Kun would also use the secrets of Sith alchemy to create monstrous creatures , such as the terentatek , which hungered for Force - sensitive blood , and two - headed battle hydra s . Lord of the Sith . Afterward , Kun decided that it was time to take his leave of Yavin 4 . The Sith amulet had shown him the existence of the Ketos , and with the discovery of the " Corsair " giving him the opportunity to finally leave the moon , Kun resolved himself to track down Freedon Nadd ' s other students and kill them . Along with two of his Massassi , Kun lifted off from Yavin 4 in the " Corsair " and traveled to the planet Empress Teta in search of the Ketos , eventually finding his way to the Iron Citadel that the Krath magicians called home . As he approached the fortress , his Sith amulet began to glow — Kun realized that the Ketos had taken possession of the amulet ' s mate , making them even more of a threat . But by then , circumstances had changed : Satal Keto was dead , slain by a Jedi named Ulic Qel - Droma who had initially joined the Krath as a sleeper agent , but had himself become seduced by the dark side and was leading the Krath alongside his now - lover Aleema Keto . Desperate to save Qel - Droma from his fate , several of his Jedi friends attacked the Iron Citadel from above in a daring bid to extract him from the Krath . Kun approached the citadel amidst the Jedi bombs , although by the time he reached the building the Jedi had already realized that Qel - Droma would not be swayed from his path and decided to leave . While Qel - Droma and Keto embraced , Kun announced his arrival . Keto immediately attacked but Kun swiftly took her out of commission with a blast of dark side power — Kun and Qel - Droma dueled , but the two were both such master swordsmen that neither could gain the advantage . As the two fallen Jedi battled , the Sith amulets they wore began to glow and envelop the pair in energy . The energies from the amulets combined and began to form an image of the ancient Sith Empire , a message carried in the two talismans for centuries . Finally , the image of long - dead Dark Lord Marka Ragnos appeared and ordered the pair to cease fighting , which they both immediately obeyed . In awe , Kun realized that he recognized the long - deceased Sith , as he had seen his mummified remains on Korriban . Ragnos ' spirit named Kun the new Dark Lord of the Sith , his initiation into the dark side complete — with a single touch , Ragnos burned a mark into the center of Kun ' s forehead , along with that of Qel - Droma , whom Ragnos said would become Kun ' s first and foremost apprentice . When the smoke cleared and Ragnos ' spirit had dissipated , Kun and Qel - Droma , rippling with tremendous amounts of dark side energy , eagerly clasped hands and resolved to bring down the galaxy . The Sith War . Preparations . Determined to defeat the Republic and the Jedi , the newly minted Lords of the Sith made their first order of business to consolidate the space around the Empress Teta system , having already gained the allegiance of Aleema Keto and her Krath cult . For this task he put into use , for the very first time , the Dark Reaper , an ancient Sith artifact that he had chanced across on Yavin 4 . Coupled with a device called the Force Harvester , the Dark Reaper had the ability to drain the Force energy from those around it and focus it into beams , making it a horrific offensive weapon . After the Reaper claimed thousands of lives on Raxus Prime , Kun devised a plan to use the weapon to destroy the Jedi Order . However , Qel - Droma , still harboring affection for some of his friends and relations within the Jedi Order , covertly aided the Republic in foiling Kun ' s plot and disabling the Dark Reaper at the old Sith world of Thule . It was 3996 BBY , the Great Sith War was underway , and to contend with the galactic powers that be , Kun and Qel - Droma decided that it was time to put together a force that could challenge their enemies . For his part , Kun ventured to the Jedi library world of Ossus , where he proclaimed a renewal of the Jedi way to Knights on the world , not letting on that he had fallen from the light himself . Kun railed against the current Jedi establishment , particularly focusing on Jedi Masters keeping their students from forbidden knowledge , and asked some of the apprentices on Ossus to leave their teachers and follow him instead . On Ossus , Kun revealed that it was he who had destroyed the spirit of Freedon Nadd , producing his Sith amulet — which he called a " Jedi amulet " — and wowed some of the apprentices with the vision of his power . After this display , Kun overheard venerable Jedi Master and Keeper of Antiquities Odan - Urr discussing a Sith holocron he had discovered in his younger days . Kun immediately knew that he had to have it , and as he entered Odan - Urr ' s hut , the holocron sensed his dark power , left the Jedi Master ' s grasp and hovered into Kun ' s hand . Odan - Urr attacked Kun , but the Dark Lord ' s Force power was too much for the old Master , who succumbed and died , his body disappearing as he passed into the next world . After the clash , a group of Jedi Knights rushed to the scene , planning on pledging themselves to Kun ' s cause : among them were Kun ' s former classmate Crado and the Vultan s Oss Wilum and Zona Luka . Kun claimed that Odan - Urr had peacefully passed on and had given him the holocron as a gift before naming him a Jedi Master . At the end of the day , Kun had a total of 20 Jedi ready to follow him , a number that included Wilum , Luka , Crado and the Human Jorak Uln . Meanwhile , Ulic Qel - Droma was busy building up an army . Qel - Droma won the allegiance of the formidable Mandalorian warrior clans after besting their leader , Mandalore the Indomitable , in single combat on the world of Kuar . Qel - Droma unified the forces of the Mandalorians with those of the Krath , creating a fighting force that would devastate worlds across the galaxy . Qel - Droma next seized the Republic ' s great shipyards at Foerost , claiming 300 of the Republic ' s newest and most advanced warships for the Sith cause . Kun and Qel - Droma spoke over hologram after the Foerost raid — while Kun wanted Qel - Droma to continue building up the fleet while he trained his Jedi learners in the dark side , Qel - Droma and the Mandalore were determined to strike at the Republic ' s capital of Coruscant . Kun was frustrated with Qel - Droma ' s rashness , but realized that he would not be able to sway his apprentice to change his mind . Kun reluctantly allowed Qel - Droma to attack Coruscant , but warned that he would continue his plans without him should his apprentice fail . Chaos in the Senate . While Qel - Droma pressed on with his plan to attack Coruscant , Kun flew his new Jedi charges to Yavin 4 aboard the newly repaired " Starstorm One " . Upon landing , Oss Wilum , sensing the touch of the dark side , realized that all was not as it seemed — but when he tried to leave the group , he was attacked by a group of Massassi that Kun was forced to call off . Kun explained that while the moon did have a dark side taint , he was attempting to purify it , and would need their help . Kun revealed Odan - Urr ' s holocron was indeed a Sith one , but instead of destroying it as he promised the Jedi he would , he instead released the faint remnants of the ancient Sith that remained within . The holocron shattered into dozens of crystal shards that became embedded within Kun ' s Jedi followers , immediately incorporating themselves into their targets , corrupting them with the dark side and reshaping them into Kun ' s Brotherhood of the Sith . The only one remaining unaffected was Crado , who was loyal to Kun nonetheless — the Dark Lord had other plans for the Cathar . Finally possessing his own force of dark acolytes , Kun ordered his charges to go out into the galaxy and murder their Jedi Masters . For his part , Kun resolved to deal with his old Master Vodo - Siosk Baas himself , instead dispatching former classmate Crado to assist Oss Wilum in killing the powerful and respected Tchuukthai Jedi Master Thon . But as the corrupted Jedi lifted off from Yavin 4 to begin their mission , another craft touched down on the moon . The ship was piloted by Mandalore the Indomitable , who brought news from the Coruscanti front : Ulic Qel - Droma ' s attack had failed , and the Republic was preparing to put Kun ' s apprentice on trial for war crimes . Kun agreed to help save Qel - Droma , and the pair immediately made their way to Coruscant along with a phalanx of Massassi troops . Kun and his force brazenly marched into the Republic Senate Hall while the trial was underway , with Kun using a Sith spell to freeze the onlookers and render them unable to react . Kun freed Qel - Droma and promptly made his way up to the Senate pulpit , which was occupied by Supreme Chancellor Sidrona . The aged Chancellor attacked Kun with his staff , but his attempt was quickly cast aside — Kun then used Sith magic to dominate Sidrona ' s mind , forcing the helpless Chancellor to parrot Kun ' s pronouncement of the Republic as a crumbling , outdated institution . When Kun released his hold on Sidrona , the Supreme Chancellor died . While Kun and Qel - Droma prepared to leave the Senate chamber behind , however , Vodo - Siosk Baas emerged to speak to his former student . Kun was reluctant to engage his former Master initially , hoping instead that Baas could be convinced to join their Sith movement . When Baas refused , Kun challenged him to battle — if Baas won , Kun pledged that he would return to his old Master ' s tutelage . The two dueled on the Senate floor , with the Krevaaki Jedi Master wielding only his wooden staff as he had before on Dantooine . When Kun found himself unable to swiftly overcome Baas , he decided to go with his ace in the hole , revealing a modification he had recently made to his lightsaber : a second blade . The tide of the duel immediately turned , and with one final blow , Kun blasted through his former Master ' s staff and killed him — with Baas promising , in his final words , that the two would one day fight again , and that Kun would be defeated . Kun then dispatched of his former classmate Sylvar with a telekinetic blast when she charged him , but allowed her and several other Jedi present in the chamber to live . Having made his point , Kun and Qel - Droma left the shocked , silent Senate chamber behind , walking right out the front door with no resistance . Crumbling alliances . Kun promptly returned to Yavin 4 with Aleema Keto , where they met with Qel - Droma and the Mandalore , the latter of whom had discovered that it was Aleema ' s treachery that had led to the Sith apprentice ' s capture by the Republic . Meanwhile , Kun ' s corrupted charges fanned out into the galaxy to slay their Jedi Masters . Some of his apprentices failed in their duty — Oss Wilum and Crado were defeated and the former taken captive by Master Thon and Nomi Sunrider on the planet Ambria , and Zona Luka was slain in battle with her former Master — but Kun ' s plot resulted in the deaths of eight of the most respected Jedi Masters in the Order . Wounded , Crado survived the clash on Ambria and managed to escape back to Yavin 4 , where he reported on Thon ' s survival and Wilum ' s capture to Exar Kun . Putting on a forgiving face , Kun assigned Crado to part of a force led by Aleema Keto that was planned to attack the Kemplex IX jump station in the Auril sector . Using the ancient power held within the " Corsair " , Aleema would destroy the jump station , and whatever Republic and Jedi forces they could draw there , with Sith magic — it was meant to be a strike against the Republic , but secretly , it was also a way for Kun and Qel - Droma to get rid of the nuisances and traitors that were Crado and Keto . Meanwhile , Kun and Qel - Droma also had another plan for Kemplex IX , as it would open the way for them to pillage the nearby Great Jedi Library on Ossus of any relics and valuables of use . Following Kun ' s plan , Keto used the power of the " Corsair " to rip the core from one of the ten stars of the Cron Cluster , which she then used as a weapon to destroy a number of Jedi who had pursued them to Kemplex IX . In doing so , however , she had doomed herself — the removal of the core caused a chain reaction inside the Cron Cluster , releasing a massive surge of energy that obliterated the " Corsair " and killed Keto and Crado . Back on Yavin 4 , Kun and Qel - Droma felt a disturbance in the Force that confirmed to them that their plot had succeeded — the supernova was next to claim Ossus , and the Sith pair immediately set out for the world to rob the library blind as the Jedi evacuated . The Cron supernova immediately caused a panicked , desperate evacuation , and provided a perfect opportunity for the two Sith Lords . Kun flew to Ossus aboard the " Starstorm One " with Qel - Droma flying in on his personal shuttle , their descent covered by a phalanx of Mandalorian troops . Although Qel - Droma was quickly caught up in a firefight with his brother Cay , Kun landed safely within the walls of the Great Jedi Library and set out with a group of several Massassi warriors to plunder whatever he could from the complex . Kun soon came across the tree - like Neti Jedi Master Ood Bnar , who was busy safeguarding a trove of ancient lightsabers and other artifacts in a shielded vault . The two briefly battled , but when Bnar — never a great warrior — realized he had no chance of winning a contest of strength , Bnar used his Neti ability to take root on top of his vault of artifacts , denying them to Kun . Although Kun was disappointed , his Massassi had already loaded up the " Starstorm One " with dozens of treasures , and he considered the endeavor to be a success . Although a vengeful Sylvar attempted to attack Kun as he retreated to his starship , Kun simply allowed his Massassi to buy him time until he pulled away for Yavin 4 . His apprentice would not be so lucky . Left behind on Ossus by Kun ' s departure , Qel - Droma wound up in a pitched duel with his brother Cay , eventually slaying him in a fit of anger . The Sith Lord was immediately overcome with guilt for what he had done and begged for forgiveness , only for Nomi Sunrider to strip him of his connection to the Force . Broken , repentant and blind to the Force , Qel - Droma realized that Kun needed to be stopped , and agreed to lead the Jedi to his former Master ' s base on Yavin 4 . Downfall . With Qel - Droma now aiding the Jedi and Aleema Keto dead , another pillar of Kun ' s dark army soon fell . While the attack on Ossus was still ongoing , Mandalore the Indomitable led a massive force of Mandalorian troops in an invasion of Onderon at Qel - Droma ' s behest . Met personally in battle by Onderonian King Oron Kira and Onderon ' s native Beast Riders , along with reinforcements from the Republic Navy , the Mandalorians found themselves hopelessly outgunned and retreated back to the moon Dxun . Hoping to evade pursuit in Dxun ' s wild jungles , the Mandalore instead had his Basilisk war droid shot down before being ripped to shreds by jungle beasts . Defeated in every sense , Ulic Qel - Droma led a combined force of thousands upon thousands of Jedi , in thousands upon thousands of ships , to Exar Kun ' s base on Yavin 4 for what could only be the final endgame of the war . Furious at Qel - Droma ' s betrayal , Kun realized that he had no chance at standing up to the combined might of the entire Jedi Order , and so delved into the ancient texts that he had salvaged from the Great Jedi Library . Kun was certain that he would die , but he had uncovered a way that his consciousness could continue to exist , separated from his physical body . Kun had no choice but to undertake the ritual — he still did not completely understand the pathways the act would open , and cognizant of the possibility that his plan could fail , Kun sent the Massassi warrior Kalgrath to wait in the isolation chambers beneath the temples as a last line of defense . Kun ' s ritual needed the use of tremendous amounts of life , so the Dark Lord called in every single Massassi on the moon and gathered them within the structure that would come to be known as the Temple of Exar Kun . Kun chained himself to an altar as the Massassi began to sacrifice themselves by the thousands so that Kun ' s spirit could escape — Kun hoped that his consciousness would be able to run rampant through the cosmos forever . As Kun ' s mortal body disintegrated , the incredible amounts of energy that surged forth from the Temple of Fire reacted with the wall of light cast down upon the moon by the Jedi forces , causing a massive fire that swiftly engulfed the jungles of Yavin 4 . The Jedi , and Qel - Droma , did not need to see any more to know that Kun was defeated , and they soon departed . But unbeknownst to all , Exar Kun ' s ritual had succeeded — but not in the way he had hoped . While his spirit had been freed from his body , he was trapped inside the walls of the temple , desperate to find a way out of his pitch - black chamber . In the meantime , Kun ' s dark campaign soon fell apart without him and Qel - Droma at the helm . After Mandalore the Indomitable was killed on Dxun , his mantle was taken up by the young Taung warrior known as Mandalore the Ultimate , who withdrew the Mandalorian Crusaders from the conflict . With Aleema Keto dead , the Republic managed to recapture the Empress Teta system , and scatter the Krath to the farthest corners of space . The rest of Kun ' s forces were pushed back to remote areas that comprised the traditional " Sith space . " Kun himself did not sense another living soul for two years , when Ulic Qel - Droma , now a nomad perpetually searching the galaxy for a way to regain his connection to the Force , made a journey to Yavin 4 to fulfill his desire to see what really happened on that fateful day . Although Kun called out to his former apprentice , Qel - Droma was unable to hear him , and soon left the vanquished Dark Lord behind . Reawakenings . Over the coming years , Kun ' s spirit would continue to be bound to Yavin 4 , slumbering restlessly . During one period of intense Force activity on the moon in 3638 BBY , the former Dark Lord ' s spirit manifested as a ghost in the jungles east of the Temple of Sacrifice . It would not be the last time that Kun ' s spirit would make contact with the living — although the Jedi expunged all record of the Yavin system in the aftermath of the war , the citizens of the galaxy would eventually stumble upon Kun ' s moon again . During the Galactic Civil War around four thousand years after Kun ' s physical death , some of his temples on Yavin 4 were rediscovered and used by the Rebel Alliance as a base of operations . Kun was briefly roused from his stupor during this time , although he was only dimly aware that his temples were being occupied . In fact , in the early days of Rebel settlement on Yavin 4 , Alliance naturalist Dr ' uun Unnh stumbled across the Temple of Exar Kun , and had begun work translating the temple ' s writings and pictographs before he was killed in the opening salvoes of the Battle of Yavin . As knowledge of the existence of temples filtered out , in 1 ABY Professor Walter Emanus led a Corellia University archaeological expedition to the moon . However , during their excavations , they uncovered the catacombs beneath the Dark Lord ' s temple and reawakened his spirit . He possessed them and made them into the Cult of Exar Kun , devoted to his worship . Under his influence , some of the cultists traveled to the Corellia University research outpost on Talus to recruit more students and researchers to their ranks . The cult based itself around the catacombs , but was destroyed when Professor Cornelius Wagglehorn , a former colleague of Emanus , hired a group of spacers to drive them out . Exar Kun himself battled the spacers , but due to his spirit form , was easily defeated and silenced once more . However , Kun still had great power from beyond the grave . During the era of the Galactic Civil War , Kun made a link with a young Force - sensitive man named Gantoris , a native of the remote world of Eol Sha — Kun began to appear in his dreams , with Gantoris perceiving the fallen Dark Lord as a " dark man " who he believed would offer him incredible secrets before destroying him . In 11 ABY , Gantoris was recruited by Jedi Master Luke Skywalker , who was traveling the galaxy in search of prospective apprentices for his New Jedi Order . Although Gantoris initially believed Skywalker to be the " dark man , " he eventually allowed Skywalker to train him in the Jedi ways . As it happened , Skywalker chose Yavin 4 as the place where he would train his first class of Jedi students , amongst the ruins of Kun ' s temples . It would not be long before Gantoris and fellow Jedi prospect Streen stumbled across the Temple of Exar Kun , immediately identifying it as a site of great power — only Skywalker , a trained Jedi Master , could discern its darkness . While Gantoris and the other apprentices learned at Skywalker ' s Jedi Praxeum , Kun again began to speak to Gantoris in his dreams , secretly instructing the man on how to build his own lightsaber and driving the Padawan towards the dark side . Kun also began to influence the other inhabitants of Yavin 4 , at one point appearing in the dreams of Luke Skywalker himself , trying to convince the Jedi Master to study the heritage of the Sith under the guise of Skywalker ' s father . Final banishment . With several prospective Jedi students now inhabiting Yavin 4 , Kun saw an opportunity to lure them to the dark side — just as he had with his Brotherhood of the Sith — and turn them into a new Force - wielding army . He started his attempt with Gantoris . Although met with some resistance , Kun succeeded in pushing Gantoris to give into his anger after showing the apprentice a vision of his people being massacred by Imperial forces at their new colony on Dantooine . Enraged , Gantoris attempted to attack Kun ' s shadow , only for the former Dark Lord to obliterate him . Gantoris ' incinerated body was discovered by his fellow students the next morning . Although Gantoris was gone , Kun soon found another target : Kyp Durron , a new arrival to the Jedi Praxeum , a young man who had spent most of his life imprisoned in the spice mines of Kessel and who had swiftly outpaced the rest of Skywalker ' s apprentices . Immensely talented in the Force and driven by an all - consuming desire to destroy the Empire that had imprisoned him and destroyed his family , Durron was frustrated with the slow pace of Skywalker ' s lessons and allowed Kun to teach him his secrets . Kun showed Durron the path to the Temple of Exar Kun , previously rediscovered by Gantoris and Streen , and Durron immediately made his way to the structure along with his companion Dorsk 81 . Kun used the Force to put Dorsk 81 to sleep once the pair were inside the temple , and proceeded to teach the awestruck Durron , who wanted nothing more than the power to defeat the Empire himself , the history and ways of the ancient Sith . Emboldened by Kun ' s teachings , Durron began to rebel against Skywalker , whom he believed to be weak , indecisive , and not committed to destroying the Imperial threat that had recently reared its head again under the command of Admiral Natasi Daala . Although Durron was still wary of Kun , he soon fled Yavin 4 in a stolen starship , and after searching for relics of the fallen Sith Lord Darth Vader on Endor , the young apprentice proclaimed himself to be the new Lord of the Sith . Durron promptly returned to Yavin 4 , and with Kun ' s aid , Durron used the Force to bring forth the Imperial superweapon known as the Sun Crusher from inside the gas giant Yavin Prime , where it had been secreted away . Skywalker was stunned at Durron ' s fall , and although he attempted to convince Durron to turn away from the dark side , Kun revealed himself and aided his young apprentice in attacking and overwhelming the Jedi Master — as Durron left Yavin 4 behind aboard the Sun Crusher , Skywalker was left in a semi - comatose state , his spirit sundered from his still - living body . Pushed fully into the dark side , Durron used the Sun Crusher to destroy the planet Carida , home to the Imperial Military Academy . But while Durron was on his rampage , Kun was still at work . Just as he had with Gantoris and Durron , Kun began influencing another of Skywalker ' s Jedi prospects : this time it was Streen , a former tibanna prospector from Bespin who had joined the Order to calm his powerful innate Force empathy . Although Streen was already accustomed to hearing the thoughts of others in his head , Kun ' s constant whispers drove the grizzled man to panic . Kun also attempted to influence the Jedi apprentice and former New Republic ace starfighter pilot Corran Horn to turn to the dark side and kill Skywalker , but was not able to affect the Corellian — the two would clash again when Horn intruded upon Kun ' s temple . After Horn mocked Kun , the former Dark Lord sent the pilot flying from the structure , breaking the man ' s arm . Kun would also confront Skywalker ' s spirit , which had remained in the presence of his students and family who had rushed to his side , with the former Dark Lord proclaiming that he would destroy Skywalker ' s body and doom the Jedi Master to a fate untethered to the physical world . After Kun issued his threat , he put Streen into an unconscious trance , driving the man to try and kill his Master — fellow apprentice Kirana Ti managed to stop him , and Streen soon snapped out of his state . Kun next sent battle hydras — descended from some of his alchemical creations during his lifetime — to attack Skywalker , only for Skywalker ' s spirit to guide the hand of his young nephew , Jacen Solo , to battle like a master swordsman and foil Kun ' s plan . His attempts on Skywalker ' s life unsuccessful , Kun continued to harass and taunt the Jedi Master ' s spirit , even while Skywalker ' s students plotted to destroy the " dark man . " But for all of Kun ' s bravado , he was not able to overcome the collective will of the Jedi . When Kun next attempted to drive Streen to murder his Master , he found his attempts to influence the man repelled , as the rest of Skywalker ' s students gathered to stand against him . With increasing desperation , Kun attempted to weaken the Jedi by driving at their failures and insecurities , but was met only with resolve . As the synergy between the Jedi grew , the images of Luke Skywalker and the long - dead Vodo - Siosk Baas appeared — after four thousand years , Master Baas proclaimed Kun defeated , just as he had promised before his former apprentice struck him down on the Senate floor . Once the scene had reached a fever pitch , Streen and Ti crossed lightsabers within Kun ' s shadowy body , extinguishing the " dark man ' s " spirit and banishing him for good . Legacy . Although Kun ' s spirit remained hidden away in secret for thousands of years after his physical death , the impact of his life , and his war with the Republic , was felt throughout the galaxy . One of Kun ' s most immediate legacies lay in the millions who perished in the Great Sith War , and the worlds his campaign razed : places like Toprawa , Ossus and his moon Yavin 4 , which saw its forests scorched at the end of the Great Sith War . It took less than ten years for Yavin 4 to be green again , but Kun ' s temples still dotted the moon ' s landscape for millennia . Ossus remained a shattered wasteland , with the descendants of some Jedi survivors persisting as primitive tribes . Those worlds were not alone — nearly a quarter of the civilized worlds of the Republic were devastated by the Great Sith War , and many were forced to rebuild by themselves , as the Jedi Order and Galactic Republic were greatly depleted by the conflict . The Republic was able to greatly rebuild its shattered infrastructure and economy over a 30 - year Restoration Period , although it wouldn ' t be long until the government was embroiled in another galaxy - spanning conflict . In 3964 BBY , Mandalore the Indomitable ' s successor attacked the Republic , and while the Republic prevailed again , the war directly led to the horror of the Jedi Civil War — Kun ' s fall was credited as a major catalyst . Despite all the bloodshed , Kun ' s story was largely regarded as legend by the galaxy at large by the time he was rediscovered on Yavin 4 , as many historical sources were destroyed along with the Jedi Temple during the Galactic Empire ' s purge . He was remembered in some circles , however , as the inventor of the double - bladed lightsaber , or " saberstaff , " which in time became used by Jedi Masters and Sith Lords alike . In fact , the Sith Lord Darth Maul , a noted wielder of the double - bladed lightsaber who lived several thousand years after the Great Sith War , patterned his weapon on Kun ' s . Over the coming years , the results of Kun ' s study of Sith alchemy , which included experiments on living creatures , continued to pose dangers to the living . Sithspawn such as terentateks and Sith wyrms were still present throughout the galaxy . As a result , the Jedi Order launched the Great Hunt , a campaign to exterminate Kun ' s creations , that touched worlds like Onderon , Kashyyyk and Korriban . Many Jedi died during the Great Hunt , and it was not entirely successful — by the time of the Jedi Civil War , there were still terentateks to be found on Kashyyyk and Korriban . In addition , Kun ' s battle hydras continued to make a home on Yavin 4 , regressing into typical predator behavior and making their lairs in mountain caves . Kun ' s rise ended up having a dramatic effect on one of Vodo - Siosk Baas ' other apprentices , who in turn became a central figure in a bizarre affair within the Jedi Order several decades after the end of the Great Sith War . Shattered by the deaths of her husband and Master Baas during the war , Jedi Master Krynda Draay became obsessed with prophecy , distraught over the fact that the Jedi Order ' s greatest seers had failed to predict Kun ' s fall to the dark side . In response , Draay began training several promising young Force - users to become seers , in time forming the secret Jedi Covenant dedicated to keeping watch for the return of the Sith . The Covenant ' s visions eventually led to the massacre of four young Padawans on the planet Taris in 3964 BBY , after the Covenant ' s First WatchCircle misinterpreted a vision to mean that one of their students would bring about the ruin of the Republic and the Jedi Order . Surviving Padawan Zayne Carrick was publicly accused of the murders , but he was eventually exonerated after elements within the Covenant rose in an unsuccessful attempt to usurp control of the Jedi Order . Outside of keeping vigil for the return of the Sith , the Jedi Covenant ' s activities also included the recovery and storage of hundreds of dark side artifacts — in time , this came to include Kun ' s double - bladed lightsaber , which was recovered by Jedi Shadow Celeste Morne and placed in the Covenant ' s storehouse in the Sanctum of the Exalted on the planet Odryn . In 3963 BBY , in the midst of the Mandalorian Wars , the lightsaber fell into the hands of the notorious Mandalorian scientist Demagol , a Zeltron biologist who had dedicated his life to researching the source of the Jedi ' s Force powers . In a fight with his daughter Chantique on the planet Osadia , both Zeltrons died , each impaled on one of the lightsaber blades . Afterward , Zayne Carrick turned the weapon back over to the Jedi Council for safekeeping . By the time of the Galactic War several centuries after Kun ' s original defeat , Kun was the subject of a text called " " , which was suggested reading material for Jedi apprentices of the age . A holocron attributed to Kun was also extant during this time , containing information on Force spirits . During the Galactic Civil War , Kun was depicted in a painting called " The Will of Exar Kun " , which was available for purchase in the town of Aurilia on the planet Dathomir . In the aftermath of Kun ' s banishment by the Jedi class on Yavin 4 , Luke Skywalker ' s spirit was able to return to his body and the Jedi Master continued to train his students . Many of the prospective Jedi that fought against the former Dark Lord — including Streen , Kirana Ti , Corran Horn , Cilghal and Kam Solusar — became respected Masters of the New Jedi Order . Even Kyp Durron found himself redeemed , vanquishing his memory of Exar Kun within the Sith Lord ' s old temple on Yavin 4 as his last test before being readmitted into the Order . The Jedi Praxeum flourished on Yavin 4 , and in 22 ABY , apprentices from the training center stumbled upon Kun ' s Golden Globe , which had continued to hold the souls of trapped Massassi children for the last several millennia . With the help of the Jedi Master Ikrit , young Anakin Solo and Tahiri Veila succeeded in breaking the globe and freeing the spirits of the Massassi . In 40 ABY , Tionne Solusar , a Jedi Master who had been among the Jedi class that battled Exar Kun on Yavin 4 , compiled a about the history of the Force that discussed Kun ' s life and afterlife extensively . The tome included a first - hand account from Streen on his experiences battling Kun ' s shade , among other stories from the Tedryn Holocron on the Sith Lord ' s life . Solusar was unable to find any clue as to why Kun was unable to cause more havoc in the Jedi Praxeum , although Corran Horn offered the possible explanation that , after 4 , 000 years in solitude , the exertion it took to possess Kyp Durron and defeat Luke Skywalker had simply tired Exar Kun out . Personality and traits . Confident in his talent and abilities to the point of arrogance , as a young man Exar Kun developed an obsessive curiosity towards the forbidden knowledge of the dark side . Although he held great respect for his Master , Vodo - Siosk Baas , and pushed himself extremely hard to fulfill his burning desire to become a great Jedi , Kun was impatient and chafed at the slow pace of his lessons . Kun believed that that he was underestimated by his Master and his peers , a perception fueling an inner anger that occasionally came to the fore during lightsaber training sessions . As such , Kun placed himself well above his fellow Jedi students , the Cathar mates Crado and Sylvar , disdaining the abilities of what he termed to be " animal Jedi , " and he would later turn on his " friend " Crado with no reservation . Kun believed that only he knew the true extent of his abilities , and his heart remained a mystery to those around him — meanwhile , Kun ' s fascination with the dark side continued to grow , to the point that Kun broke with his Master and proved himself willing to lie and scheme to get his hands on Sith artifacts . Kun made the choice to pursue knowledge of the dark side , but he initially found himself surprised by what that choice entailed . The growing ease with which he was able to give into his anger and accept Freedon Nadd ' s dark power disturbed him , even as his excitement at being nearer to the secrets he sought grew . But despite his misgivings , Kun ' s insatiable curiosity pushed him on , while Nadd ' s meddling eliminated any chance that Kun could turn away . It was Kun ' s fear of death that pushed him to finally fully accept the dark side into his heart — but even after Nadd saved him , Kun remained defiant , claiming that the dark side would never claim him . Kun only begrudgingly allowed himself to be taught by Freedon Nadd , while initially despairing that his connection to the light side had deserted him . But once Kun fully accepted his hate and completed his fall , he never looked back , his reluctance replaced only with a lust for power . This new Exar Kun cared little for titles or trappings , his only focus being his quest to accrue as much power as possible , including his subjugation of the Massassi race . Others who might also study the dark side were only seen as threats , to be immediately eliminated , at least until the spirit of Marka Ragnos proclaimed Ulic Qel - Droma to be Kun ' s first apprentice . Nevertheless , Kun and Qel - Droma ' s relationship was often rocky — Kun was frustrated with Qel - Droma ' s rashness and disobedience , scoffing at Qel - Droma ' s " foolish " strivings to " prove his manhood , " ultimately allowing his apprentice to proceed with his plans but leaving him to suffer the consequences of his choices . In turn , Kun never let go of his respect for Master Vodo , and he initially tried to find a way to bring the Krevaaki Jedi Master into the fold . As Dark Lord of the Sith , Kun proved himself to be an able spinner of lies and dark side seducer of curious Jedi , sparking the interest of prospective apprentices by appealing to their interest in forbidden knowledge and sowing distrust towards the leading Masters of the Jedi Order . Hiding his Sith status from them , Kun presented himself instead as the greatest of all Jedi , solely intent on safeguarding a great future for their Order . Of course , Kun always did have his eye on the future , but his goal was a future based on his Sith teachings , not what he viewed as the " creaking old " Republic and Jedi ways . Kun disdained the Jedi Order he once served , seeing the old foundations of the galaxy as irrelevant , outdated and ineffective , with the Republic government especially seen as puppets to tradition . Kun ' s all - surpassing hunger for ancient knowledge still drove him on , as he became obsessed with his quest to bring back an ancient Sith " golden age " to rule the galaxy . As he descended deeper into ancient Sith lore , Kun discovered a fondness for Korriban ' s highly intelligent tuk ' ata , or Sith hounds , bringing several with him to Yavin 4 . Although Kun grew bolder in his rebellion against the Republic , culminating in his storming of the Senate floor and his devastation of Ossus , his focus remained completely single - minded , and he had no qualms casting aside those who did not hold any further use to him , including Ulic Qel - Droma . This latter betrayal would end up leading to Kun ' s defeat in the end , but as it was when he first fell to the dark side , the Dark Lord was willing to sacrifice anything and everything to avoid death . Millennia in isolation on Yavin 4 made Kun grow desperate and half - mad , but his ambition was never dulled . His disdain for the Jedi class of Yavin 4 was complete , and he scorned Luke Skywalker , an accomplished Jedi Master in his own right . Kun dreamed of reviving his old Brotherhood of the Sith with the new Jedi apprentices on the moon , but he was reduced to ineffective attempts to prey on the apprentices ' emotions when things eventually unraveled for him and he was ultimately defeated . Kun stood 1 . 9 meters tall , and had black hair , gray eyes and light skin . Powers and abilities . The venerated Jedi Master Vodo - Siosk Baas called Exar Kun the most formidable student he had ever trained , and his power in the Force only grew once he accepted the dark side into his heart . Once the choice was made , Kun lost his ability to tap into the light side of the Force , but the dark side offered new possibilities and new abilities to master . On Yavin 4 , Kun intensely studied Sith magic , learning how to unleash enormous amounts of destructive dark side energy , even more so once he discovered Naga Sadow ' s ancient " Corsair " . The discovery of the " Corsair " also allowed Kun to research Sith alchemy , which he would quickly master — Kun would eventually gain the ability to create monstrous dark side creatures , such as terentateks and Sith wyrms , that would continue to pose a menace long after the end of the Great Sith War . Kun would also develop strong mental Force powers , notably using a Sith spell to mesmerize the entire Galactic Senate and dominate the mind of the Supreme Chancellor . As he delved deeper into Sith magic , Kun discovered pathways that he did not truly understand , but that he used anyway to free himself of his body at the end of the Sith War — at the expense of thousands of Massassi lives . But while he would become a master of the arcane ways of the dark side , Exar Kun shone the most with his vaunted lightsaber ability , which he honed in training duels with the Cathar Crado and Sylvar on Dantooine . His preferred form was Niman . Even as an apprentice , Kun was strong enough to defeat his Master , Vodo - Siosk Baas , although his combat style tapped into an inner anger that worried his Master . An overwhelming combatant with his single - bladed lightsaber , Kun would later add to his arsenal by innovating and mastering the double - bladed lightsaber , which was a previously unseen weapon in his time . Kun ' s formidable prowess in combat was bolstered by his tactical genius in utilizing the adaptability of his double - bladed lightsaber . By suddenly changing the intensity or length of one of his blades , Kun was often able to trick his opponents into overextending themselves and creating openings for fatal counterstrikes . Coupling his tactics with his ability to predict his enemies ' actions through the Force , Kun became a nearly unbeatable force . In addition to his proficiency with a lightsaber , Kun was also handy with a blaster pistol and with vibroweapon s . Kun was fluent in Basic , Arkanian , Ryl , Catharese , Kreva , and Tetan , along with the ancient Sith language after his corruption to the dark side at the hands of Freedon Nadd . Kun ' s powers expanded after his physical death , although he lost the ability to use some Force skills , such as Force lightning . No longer bound to a mortal body , Kun gained the ability to manifest where he pleased amongst his network of temples on Yavin 4 , appear in the minds of others , and even possess his targets . In his spiritual form , Kun was still strong enough to complete great feats of Force power , such as sundering Luke Skywalker ' s spirit from his body and helping Kyp Durron bring forth the Sun Crusher from Yavin ' s sun , but he was weak enough that he was unable to prevent his own demise at the hands of a group of Jedi apprentices . Equipment . A master of lightsaber combat , Exar Kun was remembered for his innovation of the double - bladed lightsaber , using a blue - bladed weapon that he constructed himself as a modification of his original blue - bladed lightsaber . Although Kun was often credited with the weapon ' s invention , Master Vodo - Siosk Baas ' Tedryn Holocron stated that Kun followed instructions from a Sith holocron , possibly prepared by the original Sith Lords , Jedi exiles who fought in the Hundred - Year Darkness millennia before Kun ' s life . Kun added a second emitter matrix on the other end of the lightsaber ' s handle , which allowed him to use the weapon with only one blade released or both . Kun also added customized controls to the lightsaber , allowing him to adjust both the length — measuring from half a meter to one and a half meters — and the intensity of each blade , using this variability to his tactical advantage in combat . Kun used this modified lightsaber much as his Master , Vodo - Siosk Baas , used his quarterstaff , utilizing one blade to block attacks before spinning his grip and attacking with the other blade . Kun ' s lightsaber prowess and Force ability was bolstered in turn by the powerful Sith amulet that he obtained after being captured by the Massassi on his first trip to Yavin 4 . Wearing the amulet on his left hand and shoulder , Kun gained the ability to unleash huge amounts of dark side energy . Kun owned a cortosis - woven light battle suit during his life , which may have been found by the Sith - turned - Jedi Revan and his apprentice Meetra Surik on their adventures during the Jedi Civil War and Dark Wars , respectively . Not long after the Battle of Yavin , the Rodian treasure hunter Suz Tanwa discovered what she believed to be Kun ' s light battle suit on the moon of Yavin 22 , where it had been hidden by her ancestor , Suvam Tan , a former Sith slave during the Great Sith War . During his life , Kun made use of his personal starship , the " Starstorm One " , a vessel that could be operated by himself alone . Kun used the " Starstorm One " as a Jedi apprentice and continued to fly the ship as Dark Lord of the Sith , using it to transport Jedi artifacts after his raid on Ossus . Behind the scenes . The character of Exar Kun was created by author Kevin J . Anderson , who used the Dark Lord ' s spirit as a major antagonist of his 1994 " " . Kun first appeared as a dreamlike " dark man " in the trilogy ' s first novel , " Jedi Search " , and was properly introduced in the next novel , " Dark Apprentice " . When creating the character , Anderson was initially unsure whether Kun should be a Dark Lord of the Sith or a " Dark Jedi , " finally making his decision when George Lucas voted on the former . Soon afterward , " " comic author Tom Veitch suggested that they combine Kun ' s story with that of Veitch ' s already - running " Tales of the Jedi " , as Kun had only been established as living " sometime in the past " and not in any set timeframe . Enthusiastic about the idea , Anderson decided to sketch out Kun ' s backstory for a stand - alone " Tales of the Jedi " issue , which turned into a three - issue story arc , which ended up turning into the 12 issues comprising " " — written by a collaboration between Veitch and Anderson — and " " , written by Anderson alone . After writing the comics and fleshing out Kun ' s life story , Anderson stated that he wished he could have written the " Jedi Academy Trilogy " books afterward , as he had a better sense of the character and he could have provided more depth . In the " Star Wars " universe , Kun is notable as the first character ever depicted wielding a double - bladed lightsaber , a weapon that would gain popularity when the antagonist Darth Maul used it in the 1999 movie . The concept was created by artist Chris Gossett , who pencilled most of the " Dark Lords of the Sith " arc , but it went unused until fellow artist Dario Carrasco , Jr . drew Kun with it in " Tales of the Jedi : The Sith War " . During his run in the " Tales of the Jedi " comics , Kun was illustrated by three different artists : Gossett , Carrasco , and Art Wetherell . Kun was also portrayed in the of " Dark Lords of the Sith " , where he was voiced by Peter Reneday . " " The " Star Wars Insider 26 " article " Straight from the Horse ' s Mouth " lists Kun ' s rise to Dark Lord of the Sith at 3991 BBY , although numerous later sources place the event at 3997 BBY . As the " Insider " article contradicts numerous other established dates , it is treated as incorrect on that matter for the purposes of this article .