Changes

[[File:Horus Heresy Calas Typhon.jpg|thumb|right|220px|First Captain Calas Typhon during the Horus Heresy.{{Fn|6}}]]

[[File:TyphusCodex.jpg|thumb|right|220px|Post-Heresy Typhus kills [[Tau]] ]]

Typhus was born '''Calas Typhon''' on the Death Guard's eventual homeworld of [[Barbarus]]. Typhon was a half-breed, the result of one of the [[Overlord (Xenos)|Overlords]] of Barbarus taking a liking to his human mother. For this, his mother's fellow villagers drowned her.{{Fn|19b}} As a child upon the toxic planet of Barbarus, Calas Typhon was troubled by nightly phenomena over which he believed he had no control. Objects would shudder and smash around him whenever he was frightened or angered, and plants would wither and die under his gaze. These phantom powers troubled him greatly, but he resolved to turn them to his advantage. By the time Typhon reached maturity, he had learned to master the psychic energies that resonated within him each night; a feat of will that impressed his elders mightily. With this act, Typhon became stronger in his resolve to succeed than any of his peers. When [[Mortarion]] defected from the Overlords after witnessing their atrocities, Typhon was the first person the Primarch encountered and the young child helped lead him to safety.{{Fn|19a}} During his early adulthood, Typhus was a champion of Mortarion's early Death Guard in his war against the [[Warlord of Barbarus]].{{Fn|18}} When the [[Emperor]] reclaimed his lost son Mortarion from the poisonous mists of Barbarus, and reunited him with the the superhuman warriors born from his [[gene-seed]], Typhon was amongst those chosen to join their ranks. As he joined the legion, his psychic potential was suppressed through training due to the anti-[[psyker]] sentiment of his Primarch. Nonetheless through his rugged talent, Typhon was eventually able to rise to the prestigious position of [[First Captain]].{{Fn|12a}} He shared a strong bond with Mortarion, the two being close comrades due in part to their shared origin as outsiders even among Barbarus.{{Fn|17b}}

According to Typhon himself, he was secretly converted to worship of the [[Gods of Chaos]] during the [[Zaramund Campaign]], receiving revelation at the touch of the hand of an old woman.{{Fn|19d}} Typhon's allegiance to Chaos predated that of his own Primarch, or of [[Horus]] himself.{{Fn|2a}} With the help of his new gods, Typhon became [[First Captain]] of the Death Guard and commander of the battleship ''[[Terminus Est]]''.{{Fn|1}} Typhon was not particularly loyal to Mortarion, and always wished to travel the Galaxy and forge his own destiny in the name of the Ruinous Powers.{{Fn|1}}

When Mortarion joined [[Horus]] in his rebellion, Typhon helped orchestrate the massacre of loyalist [[Space Marines]] on [[Isstvan III]], when Horus's fleet virus-bombed the surface and killed nearly every living thing above-ground.{{Fn|2b}} Because Battle-Captain [[Nathaniel Garro]] was unable to join his loyalist comrades on the surface, Typhon detailed him to the frigate ''[[Eisenstein]]'', along with Commander [[Ignatius Grulgor]], privately ordering Grulgor to deal with Garro and his men when necessary.{{Fn|2c}} Typhon was furious when the ''Eisenstein'' broke from orbit without joining the virus-bombing. Realizing that Grulgor had failed, he commanded the ''Terminus Est'' in pursuit of the frigate, and managed to severely damage the vessel, but was unable to stop it from escaping into the [[warp]].{{Fn|2d}} Later during the Heresy, Typhon led half of the Death Guard in a splinter fleet while Mortarion himself took command of the other. During his campaign of misery and misdirection against the [[Dark Angels]], Typhon's fleet attempted to acquire the [[Tuchulcha]] engine in fulfillment of [[Nurgle]]'s designs but was foiled by [[Lion El'Jonson]] during the [[Battle of Perditus]].{{Fn|5}} Hounded by a Dark Angels retribution force under the command of [[Corswain]], Typhon's fleet later reappeared at the [[Zaramund System]]. There, the Death Guard forces were welcomed by [[Luther]] and his [[Fallen Angel]]s.{{Fn|16}} Fleeing from [[Corswain]] and his Dark Angels, Luther hid the Death Guard fleet while deceiving his former comrades.{{Fn|22}}

Typhus subsequently rallied the Death Guard to retake the [[Astronomican]] before it could be reactivated and lead [[Roboute Guilliman]] and his reinforcements to Terra. He attempted to tempt the [[Fallen Angel]] [[Librarian]]s such as [[Zahariel]] inside to join Horus' cause, but to no avail.{{Fn|26a}} Typhus then launched a full-scale assault on the Astronomican.{{Fn|26b}} Typhus' forces were able to penetrate the [[Hollow Mountain]], and seemed to have victory in his grasp despite a determined assault by the Dark Angels and forces of [[Sigismund]]. However, Keeler was able to lead a sacrificial prayer amongst the faithful throngs that caused a psychic backlash which not only threw back the Death Guard but also reactivated the Astronomican.{{Fn|27}}

Since the Heresy, Typhus has continued to spread the glory of Nurgle across the galaxy. Leading a contingent of Death Guard of the '''[[Plague Fleet]]''' from the [[Terminus Est]], Typhus is known to have laid waste to many worlds and waged many battles in Nurgle's name. He has even travelled to the [[Garden of Nurgle]] inside the [[Warp]] itself, where he has battled [[Khornate]] [[Daemon]]s. After killing the leader of this daemon army, he took the dog-headed daemon's guts and brought them to the Nurgle Palace itself as a gift for Nurgle's Cauldron. The [[Lord of Decay]] was so pleased that for this great deed Typhus was honored with being allowed to dip his [[Manreaper]] into the filth of the Throne of Nurgle.{{Fn|12b}} Typhus turned into [[Plaguebearers]] the entire populations of [[Protheus]] and [[Carandinis VII]] with all their billions of people. He destroyed the population of the [[Shrine World]] [[Jonah's World]] with a carefully orchestrated pandemic and unleashed the Red Flux on the planet of [[Florins]], wiping out the entire male population there.{{Fn|12b}} Typhus has also laid waste to the world of [[Ligeta]] with a noise-plague where the infected became forced to eternally sing a hymn to the Lord of Decay.{{Fn|7}} In 757.[[M40]], he killed 23 billion people on [[Hydra Minoris]] with the [[Zombie Plague]].{{Fn|9a}} In the [[13th Black Crusade]], Typhus's Plague Fleet was the first Chaos force encountered by the Imperium. In the Crusade, his forces went on to ravage the [[Agripinaa Sector]].{{Fn|8}} He also oversaw the infestation and desecration of the holy planet [[Annunciation]] by himself.{{Fn|11}}