Editing Primaris Space Marines (section)

==History and Background==
Shortly after the conclusion of the Horus Heresy, Guilliman predicted that another major Chaos attack on the Imperium might come at some point in the future. Though the Space Marines had proven themselves worthy defenders of Mankind, the Primarch foresaw that there might be a time where even they would struggle against the onslaught of the Ruinous Powers - [[Derp|because Roboute himself broke Legions in chapters]], and those tend to have problems fighting Black Crusades against ''hundreds of thousands'' of CSM (the reason why Dorn declined Codex Astartes at first, being one of the few after the Scouring to suppose the Traitor Legions may be back one day). But nowadays it turns out Guilliman knew about it as well - which makes the whole situation awkward to say the least (Though it's likely the sudden transition of Space Marines from full sized Legions to smaller Gendarmerie-esque Chapters was only intended to be a temporary measure until the post-Horus Heresy Imperium sorted it's trashed situation out).

Ahem, in a frankly extreme show of [[just as planned]] (though Guilliman probably didn't plan to be made Fulgrim's bitch), our [[Spiritual Liege]] gained the aid of Archmagos Belisarius Cawl and began a program to create a new, superior form of Space Marines in secret over the next ten millennia. To assist him, Guilliman gave Cawl a relic called the Sangprimus Portum- a device containing the purest samples of each Primarch's [[/d/|genetic material]] that outstripped even the gene-seed in its potency. The artifact was actually a Selenar construct originally named the "Magna Mater" which was used to create the original Space Marines, and was secured by the Sisypheum's crew from Chaos hands on [[Luna]] during the Siege of Terra.

Even after he was poisoned by [[Fulgrim]], Guilliman's plan continued without anybody learning about it, and by the time of his revival, Primaris Marines were ready to be unveiled to the Imperium - the only thing needed was a sanction from the Primarch himself.

In conjunction with the [[Ultima Founding]], there are now going to be entirely new chapters composed just of Primaris Marines as well, with some taking over the [[Fortress-Monastery|fortress-monasteries]] of extinct chapters. In addition many chapters conveniently devastated by recent conflicts are also being reinforced by the Primaris joining their ranks. Some to the point that they essentially become Primaris chapters with the original marines becoming a minority in the ranks.

Standard marines can also be "transformed" into Primaris Marines. The first revealed to have gone through with this procedure was [[Marneus Calgar]]. However, the process, dubbed the "Rubicon Primaris" (as in the phrase [[:wikipedia:Crossing_the_Rubicon|"crossing the Rubicon"]]) is also agonizing even by Space Marine standards (Imperial Fists be like "tell me more"), very difficult (the description of it we have for when Marneus Calgar went through it has his entire body sliced open and briefly ''killed him'' in the process- they had to jump-start his heart to revive him afterwards), and according to Cawl himself it had a 61.6% chance of failure until Cawl had enough data to refine the process. By the final years of the Plague Wars in Ultramar the process seemed to be stable enough that it was considered unusual for high ranking officers to not undergo the process. However it still remained a lengthy and agonizing process not to be taken lightly. By and large, it's indisputably easier to make new Primaris from scratch rather than convert old marines, which are becoming rarer every passing year anyway, so expect the procedure to be mostly restricted to special characters who need to stick around for meta reasons.

The introduction of the Primaris marines and the Rubicon Primaris has been controversially received by the current space marine chapters across the Imperium, with opinions ranging from enthusiastic to full-on hostility - Guilliman himself has referred to the Primaris as "Cawl's blasphemous hordes", not because he himself is distasteful of them (quite the opposite, in fact), but as a reference to how controversial their implementation has been to the wider Imperium. Some claim that the Primaris would be the end of many chapters' traditions and character (which isn’t meta at all) and is against what the Emperor intended for the Astartes. Others claim they will breathe new life into many struggling chapters and an ailing Imperium. Which admittedly is true for [[Celestial Lions|those]] [[Lamenters|guys]].