While on the planet the two Jedi Knights failed to complete their mission when they fell to the lure of the dark side of the Force and abandoned the Order. Beldorion cast aside Taselda as the weaker half of the team and established himself as the ruler of the world. Providing his subjects with honorifics which he should be addressed by such as "Beldorion of the Ruby Eyes" and "Beldorion the Splendid," Beldorion was corrupt and enslaved many. While originally prepared as Beldorion's meal, the Droch known as Dzym came to conspire with the Hutt, helping the Dark Jedi remain strong and youthful in exchange for the freedom to access the planet's rare Tsil stones.[1]
Avoiding the Great Jedi Purge, it wasn't until 13 ABY that Beldorion's relatively unopposed rule was disrupted by the arrival of Jedi Callista Ming. While she was unsuccessful in getting to the Hutt and imprisoned, her disappearance drew the attention of additional Jedi: Luke Skywalker, the founder of the rebuilt Order, and his sister, Leia Organa. Like Ming, Organa was also captured by the Hutt who divulged stories from the past, recalling the histories of Jedi Masters Thon and Yoda. During her captivity, Organa was able to regain possession of her lightsaber and engage her captor in a duel. Though the centuries old Dark Jedi was powerful, Organa was able to move more freely and bisected the Hutt at the mid-section.[1]
Unlike most Hutts, Beldorion used the Force to maintain a muscular form, allowing him to retain his prowess with a lightsaber after several centuries of life. Having crafted a lightsaber with a purple blade, Beldorion would change the trajectory of his lightsaber strikes in a battle, demonstrating some attributes of the seventh form of lightsaber combat.[1]
In The New Essential Chronology, The New Essential Guide to Characters, Balance Point and The Planet of Twilight his name is erroneously spelled Beldorian.