Canon

Decimus

From Halopedia, the Halo wiki

Decimus
A render of Decimus.
Biographical information

Homeworld:

Doisac[1][2]

Born:

June 16, 2498[2]

Died:

March 30, 2559 (aged 60)

Cause of death:

Mortally wounded in battle by UNSC forces

Personal details

Species:

Jiralhanae

Gender:

Male

Height:

281.9 centimeters (9 ft 3.0 in)[2]

Weight:

680.4 kilograms (1,500 lb)[1][2]

Hair color:

White

Eye color:

Yellow

Political and military information

Affiliation:

Rank:

War Chief[1][2]

 

"The Covenant could not stop us. You have no chance."
— Decimus to humans from the UNSC Spirit of Fire[3]

Decimus was a Jiralhanae warrior who founded the Banished alongside Atriox when they and several other Jiralhanae rebelled against the Covenant when a Sangheili executioner was sent to kill Atriox during the Algolis Invasion. One of the longest serving War Chiefs within the Banished,[2] Decimus had been serving as Atriox's right hand and second-in-command ever since his rebellion.[1]

Biography[edit]

The Covenant and the Banished[edit]

Decimus about to slam a Sangheili into the ground following Atriox's defiance of the Covenant during the Algolis Invasion. Screenshot taken from the opening cinematic in A New Enemy.
Decimus prepares to slam a Sangheili into the ground.

Decimus once served in the Covenant's military. He fought in the genocidal war against humanity. He was present on Algolis when Atriox, the survivor of numerous suicide missions and a disbeliever in the Covenant's Great Journey and the war, was meant to be executed. He was inspired by Atriox's refusal to allow himself to be killed and his defiance of the giant empire. At that moment Decimus sprung into action. He and other Jiralhanae killed all of the Sangheili present in the immediate area. Decimus personally was responsible for numerous deaths, which he caused with his bare hands. Forthwith, he fell to both knees before Atriox and pledged to follow him and formed the Banished together. From that day onward, he was Atriox's right hand.[3]

He accompanied Atriox during raids on Covenant supply lines and stores to build up a formidable amount of ordnance stolen from the empire.[3]

Recruiting Sig Raan[edit]

Decimus and Sig Raan discuss her Yanme'e forces.

Shortly after the foundation of the Banished, Decimus travelled to a secret Covenant facility on the planet Otraak to attempt to recruit a Kig-Yar scientist he knew named Sig Raan, in an effort to expand the Banished's technological base and support their fleets. Upon arrival to the planet Decimus and his group were attack by many Unggoy fending off the attackers quickly. A hologram of Sig Raan would appear to stop the Grunts assault, inviting Decimus inside to discuss his proposel. Decimus would try to convince Sig Raan to join the Banished, with the Jackal simply taking him to her Yanme'e hive, where all Drones there would follow her orders. she was their queen thanks to a device created by her that would mimic the sonic and pheromonal signals of the Yanme'e Queen. Sig Raan then would inform Decimus that his signal to his group had been cut off and that this was the end for him. Decimus was set upon by Sig Raans drones, being swarmed by them. Decimus would only live thanks to the surprise arrival of Atriox. Atriox coming to the aid of Decimus alongside his reinforcements would push back and defeat the entire hive, and as Sig Raan tried to escape Decimus would kill her firing a shot from his plasma pistol, causing Sig Raan to fall to her death. Decimus would take the device from the dead Sig Raan and pondered using to control the Yanme'e as engineer or obediant soldiers. Atriox, however, would take it from him and crush it, declaring all his troops would follow him out solely of their free will.[4]

Leading the Banished[edit]

"He serves as one of Atriox's most trusted field commanders, and has served as the Banished second-in-command for years."
— A description of War Chieftain Decimus.

After the Banished had grown larger following the recruitment of many mercenaries and criminals, Decimus served in the Banished as a War Chief.[5] He had command over multiple types of leaders, including Jiralhanae Warlords who were loyal only to him and Atriox, as well as Unggoy thrall-taskmasters.[6] Harboring a hatred for the Sangheili due to the feud between their species, Decimus often ordered the Banished Sangheili mercenaries under his command on suicide missions as canon-fodder for sadistic pleasure.[7]

Dealing with Jovus[edit]

Atriox and Decimus meet with Jovus.

Atriox arranged to meet with Jiralhanae Chieftain Jovus, who had made a name for himself. Decimus was sent to meet with him first when he arrived on the planet Karava. Decimus would act as a console to Jovus going to him unarmed. He would speak of Atriox's accomplishments on Otraak, Decimus would speak in utmost respect of his leader's brutality. Jovus would snap at Decimus for his views. Then the ground would shake and tremble as explosive charges would be let off. Soon, Jovus and his group would be fired upon by Pavium and Vroidus. Sending Jovus and his group fleeing back to their supply depot where they would be cut off by the Banished who would charge Jovus' group and decimate them, leaving Jovus weak and limping having taken plasma fire to his left shoulder. When Atriox would make himself known comending Jovus for his pointless endeavour fighting. Decimus would stand by as Atriox tried to convince Jovus to join him.[8]

Jovus would defy Atriox to the end. Charging at the warmaster, Jovus would be struck down by Atriox with Chainbreaker, killing the Brute instantly. Decimus would watch as Atriox declared that Jovus and the time of the Covenant were at an end, but the time of the Banished had just begun.[8]

The Ark[edit]

"The Ark is ours, humans, and no one will stand before the might of the Banished!"
— Decimus to UNSC forces while in the midst of battle with them.
A screenshot of a large group of UNSC infantry fighting Decimus on the level A New Enemy.
Decimus under heavy firepower while fighting against the crew of the UNSC Spirit of Fire.

In November of 2558, the Banished arrived in force at Installation 00 aboard the Enduring Conviction. Atriox chose Decimus to lead the