Battle of Otavon XII The Battle of Otavon XII was a skirmish which took place in 19 BBY and involved the Sith Lord Darth Vader . During the battle , Lord Vader supervised the construction of AT - AT ' s on Tremor Base , located on the planet of Otavon XII . At the start of the battle , the Ovoni rebels attacked the base and the stormtrooper soldiers present there . Vader then made his appearance and killed all of the Ovoni rebels present . After that , he spoke with the commander in charge of the mission , Crik , who was speaking with Vader about the schedule of the construction of the AT - ATs on the Tremor Base . Shortly after that brief conversation , a severely wounded clone soldier of the Empire came from the forest , saying that the Ovoni rebels had a Jedi Force with them . When Vader received that information he inmediately began a search for the Jedi present on the planet , although Crik didn ' t like the idea at all . Vader traveled through the planet ' s jungle in search of the Jedi , and he first encountered the Padawan Dendro who was with four Ovoni rebels . After Vader killed the four rebels , he dueled the Padawan and quickly killed him . When Vader finished that short duel , he found a native creature of the planet , a Sugati , who was in attack position , but before it could harm Vader , he discovered that it was weak - minded , and fooled it with a mind trick . After that he traveled over to a mount , where the Dendro ' s Master was hiding . When Vader found the Jedi , the two had a brief conversation , before fighting in a duel . In the fight , Vader cut off the Jedi ' s lightsaber , the Jedi responding by releasing a second blade . However , Vader then ignited a second blade too , the Dendro ' s lightsaber , to kill the Jedi Master behind the whole Ovoni operation , who , before dying , revealed his name : Hylon . Vader then returned to base , and found that it had been destroyed by Ovoni rebels and that the Jedis were just a merely distraction for him . Soon after the Emperor arrived and ordered Vader to stay and meditate on his failure there . The Empire later covered up the event and used footage of it for propaganda broadcasts . The battle . In 19 BBY , on the remote world of Otavon XII , the Sith Lord Darth Vader was assigned by Emperor Palpatine to protect an AT - AT manufacturing facility from anti - Imperial natives . The planet was chosen as a sufficient location for the construction of AT - AT walkers , an operation that was maintained in secrecy from the galaxy at large . During one attempt by Ovoni rebels to destroy the facility , they were taken by surprise by Darth Vader , who killed many of them while forcing the rest to retreat and hide within the jungle . Shortly after the Ovonis ' failed assault , General Crik shared his worries about endless insurgent attacks with Vader , but the Dark Lord dismissed the general ' s fears and commanded him to focus on finishing the production of numerous AT - AT Walkers . At that moment , a wounded stormtrooper emerged from the forest and reported that the Ovoni had Jedi amongst them . Vader , ever intent on killing the remaining Jedi that survived Order 66 , wasted no time in embarking into the jungle . Discovery of the Jedi presence . A short time later , Vader discovered Jedi presence on the planet , and traveled across the jungle in search of the Jedi . He first surprised the Padawan Dendro and a group of rebels away from the base , when he killed the Ovoni rebels , he dueled with the Jedi Padawan Dendro , who Vader killed moments after the duel began . After that brief duel , he encountered a Sugati , a native creature of the planet , who was about to kill Vader , until he realized that those beasts were weak - minded , and easy to fool ; for that Vader performed a mind trick to deceive the beast . After he traveled past that creature , he arrived at the location of Dendro ' s Jedi Master , on Mount Dijandi . Once Vader stepped onto the mountain , he had a brief conversation with the Jedi Master , which resulted in a duel . During the fight Vader managed to destroy the lightsaber of the Jedi , who in turn released another blade , but Vader countered this by releasing another lightsaber , belonging to the now deceased Padawan of the Jedi Master . Ironically , the Jedi was killed by the weapon of his own Padawan . Before Vader killed the Jedi Master , he revealed his name : Hylon , the man behind the entire Ovoni operation . After the duel , Vader traveled by foot across the jungle of the planet , until he arrived at Tremon Base . Aftermath . However , when he arrived back to the AT - AT plant , he found that the Ovoni had used Sugati to destroy the base , and that the Jedi Dendro and Hylon had merely been distracting him , sacrificing their own lives , allowing the Ovoni warriors to destroy the base , causing Vader to fail in his mission . Shortly after , the Emperor arrived at Tremor Base with two of his Royal Guards in a " Theta " - class shuttle . When he saw the disastrous outcome of the battle , he punished Vader by leaving him there on the planet to meditate on his failure . Despite the Sith Lord ' s failure , the Empire covered up the event and used footage of the battle for propaganda broadcasts . Behind the scenes . The first appearance of the Battle of Otavon XII , including the Ovoni and the Sugati , was in the " Jedi Purge " comic series , " " , released on April 7 of 2010 , written by W . Haden Blackman and pencilled by Chris Scalf . It is unknown what happened to Commander Crik in the aftermath of the battle , as the casualties of the battle were never mentioned in the comic , allowing for the possibility of the death of the commander . The Battle of Otavon XII made a brief appearance in the comic " Dark Times — Fire Carrier 1 " , but the name of the planet was misspelled as Ovaton VII .