Star Wars; Diminished Hope
Exar Kun was a Human male Jedi Knight who fell from the light and became an infamous Dark Lord of the Sith at the time of the Old Sith Wars.
Kun, during his time as a Jedi Padawan, displayed an unusual curiosity into forbidden teachings, so much so, that, upon completion of his training, he abandoned his master and set out in pursuit of the knowledge and power of the ancient Sith. Initially, his quest led him to the planet Onderon and then its jungle moon, Dxun, where he entered the tomb of a long-deceased Dark Lord of the Sith named Freedon Nadd. With Kun’s intrusion, Nadd’s spirit awoke.
Seduced by Nadd with the promise of power through acceptance of the dark side of the Force, Kun allowed himself to become Nadd’s apprentice. As Kun rapidly progressed in Sith magic, Nadd directed him to Yavin 4, where Kun acquired even greater Sith powers. He then destroyed Nadd’s spirit, and set out on his own quest for galactic domination.
Kun was aware of several of Nadd’s other prospects, and saw them as hindrances to his ascension to the mantle of Dark Lord. Thus, he journeyed to the Empress Teta system to eliminate the Krath Sith cult, the other darksiders under Nadd’s instruction. After a brief confrontation with Krath warlord Ulic Qel-Droma, Kun and his opponent were visited by the ghost of the ancient Sith Lord Marka Ragnos—who completed their initiation into the ways of the dark side and christened Kun the new Dark Lord, with Qel-Droma as his first apprentice. Kun then partnered with Qel-Droma’s Krath to form the infamous Brotherhood of the Sith, and together, they waged total war upon both the Galactic Republic and the Jedi Order which protected it.
After traveling to Ossus and killing Odan-Urr, the Jedi Keeper of Antiquities, Exar Kun stole an ancient Sith holocron in the Draethos Master’s possession and used it to corrupt many Jedi Knights to his cause, forming the foundations of a Sith-inspired galactic empire. He then ordered his converts to strike down their masters in an attempt to destabilize the Jedi Order’s leadership; Kun himself would confront his own former Master, Vodo-Siosk Baas, on Coruscant during the trial of Ulic Qel-Droma, where he slew both the Supreme Chancellor of the Republic and Master Baas. Kun then set Qel-Droma free, and the two Lords of the Sith resumed their campaign of galactic terror.
After instigating the destruction of the Cron star cluster, Exar Kun led his forces in a raid on the Jedi’s stronghold world of Ossus, where he pillaged as much of the ancient lore of the Jedi as possible. He then retreated to his temple on the moon of Yavin 4, but was unaware that Ulic Qel-Droma had betrayed him to the Jedi, and had also led them to Yavin to stage a final offensive against him. Using an ancient Sith technique that even he did not understand, Kun separated his spirit from his body in an attempt to elude capture. However, he was defeated when Nomi Sunrider led thousands of Jedi in the creation of a wall of light; the power of which destroyed the landscape of Yavin 4, and trapped the Dark Lord’s spirit within the walls of his temple forever.
Thousands of years later, Exar Kun’s spirit returned to wreak havoc on the students of Jedi Master Luke Skywalker’s praxeum on Yavin 4. After haunting several of the trainees, Kun’s spirit subtly corrupted one of them, Gantoris, to the dark side of the Force, but killed Gantoris when he tried to reject the Dark Lord’s influence. He also corrupted Kyp Durron and took Master Skywalker’s soul from his body, but was ultimately defeated by the combined power of Luke’s students, the spirit of Vodo-Siosk Baas and Luke Skywalker himself.