Kosa - Yin Hadu Kosa - Yin Hadu was a Gungan male Sith cult member who lived during the waning years of the Galactic Republic . Originally a member of the Jedi Order , Hadu trained as the Padawan of Jedi Knight Kin - Ya Dosun , a fellow Gungan . In about 33 BBY , the pair was dispatched on a mission from the Jedi Temple on the planet Coruscant , but they subsequently disappeared . At some point , Hadu fell to the dark side of the Force and became a member of the Believers , a Sith cult that was based on the planet Almas . Circa 31 BBY , Hadu and the Mon Calamari Dark Jedi Gar Granga were sent by Garvin Delquist , the leader of the Believers , to poison Almas ' s kaluthin plants as part of a Believer plot to drive the Jedi — who operated a training facility on Almas — off the planet . However , the plot was uncovered by a group of freelance agents , who attacked and defeated Hadu and his Believer compatriots . Biography . The Force - sensitive Kosa - Yin Hadu was a Gungan male who joined the Jedi Order during the waning years of the Galactic Republic . Hadu became a Jedi Padawan and studied under the tutelage of Jedi Knight Kin - Ya Dosun , a fellow Gungan . The Padawan constructed his own lightsaber , and he trained to become one of the Jedi Guardian s , a branch of the Jedi Order that focused on developing their combat abilities . In about 33 BBY , Hadu and Dosun were dispatched on a mission from the Jedi Temple on the planet Coruscant , but the pair subsequently disappeared . Hadu fell to the dark side of the Force and became a Dark Jedi , and he eventually joined the Believers , a Sith cult that was based in a Sith fortress on the planet Almas , in the Cularin system . At some point , the Gungan infused the focusing crystals inside his lightsaber with the power of the dark side , causing the crystals to filter powerful dark side energy into anyone who wielded the weapon . Circa 31 BBY , Garvin Delquist — the leader of the Believers — tasked Hadu and the Mon Calamari Dark Jedi Gar Granga with killing Almas ' s kaluthin plants . The kaluthin had been created by the Sith Lord Darth Rivan thousands of years earlier to make Almas habitable , and Delquist believed that destroying the plants would help the Believers drive the Jedi Order away from Almas , where the Order operated a training facility . A group of Believers led by Hadu and Granga established a temporary camp on an Almas hilltop and erected a tent to serve as Hadu ' s field office and personal quarters . Using the camp as a base , the Believers attacked kaluthin farms across Almas over a period of three months , poisoning many of the planet ' s aquifer s with a biological toxin and causing large swaths of kaluthin to die . Agitated by the attacks on their crops , some of Almas ' s kaluthin farmers blamed the Jedi Order for the death of their plants . In an attempt to further escalate tensions between the farmers and the Jedi , Hadu visited the cantina Building 49 - A in the city of Forard and bad - mouthed the Jedi while in the presence of a number of farmers . The scientists at a kaluthin research station on Almas started to investigate the areas of kaluthin extinction , and Hadu and Grangra feared that the station posed a risk to the Believers ' operation , believing that the researchers might be able to identify the toxins that the Believers were using to poison the aquifers . In an attempt to mitigate the threat posed by the scientists , Hadu , Granga , and several other Believers traveled to the planet Cularin , where they plotted to stop a shipment of supplies from being transported to the research station , to prevent the scientists from performing their studies . The supplies were due to be taken to Almas by the Duros Welrin Maduk aboard the freighter " Fool ' s Paradise " , so the two Dark Jedi headed to the " Fool ' s Paradise " landing bay in the city of Hedrett with some other Believers , planning to hijack the vessel . As a safeguard , Hadu and Granga parked a starship on a landing pad near the " Fool ' s Paradise " and then concealed their craft and an exit from the " Fool ' s Paradise " landing bay using a Force illusion . The Dark Jedi duo then approached the " Fool ' s Paradise " while accompanied by a squad of battle droids and three other Believers , and the pair told Welrin Maduk that they had been sent by the port authority . Maduk protested and claimed that his ship had already been inspected , so Hadu and Granga ignited their lightsabers and prepared to attack the Duros . However , the Heroes of Cularin , a group of freelance agents who operated in the Cularin system , saw that Maduk was being threatened , and they came to his rescue . As the agents approached the " Fool ' s Paradise " , Hadu and Granga fled through the concealed hangar entrance , leaving the battle droids and the other Believers to face the agents alone . Hadu returned to the Believers ' hilltop camp on Almas , where he received a holographic message from Garvin Delquist , who warned him and Granga that the Jedi had learned of the Believers ' presence on Almas and urged the two Dark Jedi to accelerate the timetable of their work to poison the kaluthin . The Heroes of Cularin investigated the poisoning of the aquifers , and they launched an assault on the Believers ' encampment . After being alerted of the attack , Hadu emerged from his tent and engaged the agents in combat along with some of his guards , while the other Believers powered up their landspeeders in preparation to evacuate the camp . The agents eventually defeated Hadu and his Believer subordinates , thwarting the Gungan ' s attempts to wipe out the kaluthin . The Jedi learned Hadu ' s identity , and Jedi Master Seenlu Kir began to research the mission on which Hadu and Kin - Ya Dosun had disappeared , in an attempt to discover how the two Gungans had been lost . However , her research was unsuccessful , for she did not learn anything new about the two Gungans . Personality and traits . Kosa - Yin Hadu was an angry individual who was happy to persecute and torture other people in order to achieve his aims . He wore an All - Temperature Cloak and was equipped with both a lightsaber and a heavy blaster pistol . Although he originally studied as a Jedi Padawan , he later turned his allegiance to the Sith cult of the Believers . Powers and abilities . Hadu mastered a number of Force powers , and he was able to use the Force to sense things , grip objects , heal himself , augment his fighting spirit , and boost his combat abilities . In addition , he was able to use the powers of Force hatred and Force rage when fighting against his opponents . Hadu was multi - lingual and could speak Gungan and Mon Calamarian in addition to Galactic Basic Standard . Behind the scenes . Kosa - Yin Hadu was created by Adam Burns for " The Kaluthin Are Always Greener " , a 2002 role - playing supplement that formed part of the Almas , Sweet Almas trilogy of the " Living Force " campaign . In the supplement , the player characters role - play as the Heroes of Cularin , and when the agents confront Hadu at the Believers ' encampment on Almas , the Gungan ' s level of combat prowess is dependent on the players ' role - playing experience tier . If the players are in the lower role - playing tier , Hadu is weakened as a result of expending large amounts of Force energy to terrorize some farmers earlier in the day , and during combat , he does not use the Force to heal himself , because he does not believe that the agents are worth the effort . If the players are in the medium tier , Hadu has used up some of his Force energy to intimidate some innocent beings prior to the agents ' assault , and during the attack , he considers using the Force to heal himself if the players pose a danger to him . If the player characters are in the higher role - playing tier , Hadu is at full strength when he engages the agents in combat . When the players ' battle against Hadu comes to a conclusion , the Gungan can either be killed or escape . If the agents kill him , it is possible for one of the player characters to loot Hadu ' s lightsaber .