Deranax
Deranax was a Centurion in the World Eaters Legion and was once a greater believer in the Imperium's Great Crusade. When the Horus Heresy began though, he joined his Legion in tearing down everything the Crusade had accomplished and was later among the Traitors' forces set to invade Terra.[1]
However, when Horus learned that the Blood Angels Legion was attempting to pass through the Ruinstorm to reach the Emperor's side, Deranax was charged with stopping the Loyalists. Given command of the Battleship Gladiator and many of his Legion's warships, Deranax prepared an ambush in the Diavanos System, which he knew the Blood Angels would need to pass through. However, Diavanos was a world of the Imperium and once they discovered the World Eaters' fleet, they sent out a plea for aid. The World Eaters were unaware of this, so Deranax's fleet was caught by surprise when the Ultramarines Legion suddenly entered the system, after receiving Diavanos' message. Led by their Primarch, Roboute Guilliman, the Ultramarines were fighting any Traitors they came across, to ensure the Blood Angels reached Terra and intended to wipe the World Eaters from the System.[1]
In the subsequent Battle of the Diavanos System, the World Eaters' fleet was destroyed, but not before Deranax aimed the stricken Gladiator at the Loyalist world. Wanting to land one last blow against the Imperium, he readied a Cyclonic torpedo to explode - but not to destroy Diavanos. The Centurion had anticipated Guilliman would personally try to stop him, in order to save Diavanos, and so planned to explode the torpedo within the Gladiator. When the Primarch and Ultramarines boarded the Gladiator, the World Eaters set off explosives which destroyed every passageway to the battleship's bridge and forced the Ultramarines to enter its torpedo bays. However, when they saw what the Centurion intended, the Ultramarines charged the World Eaters protecting the torpedo and Guilliman was able to kill Deranax before he caused it to explode.[1]
