The Despairing T'au (Ten-Thousand-Word Chapter, Please Subscribe)

As the military organization within the Imperium of Man with the most extensive experience fighting Warp Demons and Chaos forces, the Grey Knights undoubtedly possessed a massive archive far beyond what outsiders could imagine.

It contained dense records on all manner of Demons, Chaos Astartes, and cultist heretics, including their traits, abilities, weaknesses, and detailed countermeasures.

And these were precisely what New Phyrexia needed most urgently.

During the previous battle against the Thousand Sons, Raymond had discovered that although the Praetors he created were already powerful enough, their lack of souls meant they could not use Psionics from this universe. As a result, they were easily ambushed, sabotaged, and restrained when facing Tzeentch's followers, who excelled in psychic sorcery, preventing them from displaying their full strength.

To ensure that similar situations would not occur again, he accepted the cooperation proposal put forward by Roboute Guilliman.

The Imperial Grey Knights would provide their vast archive concerning the Warp and Chaos forces, while New Phyrexia would provide more effective enchanted weapons and ammunition.

Both sides got what they needed, and the agreement came together immediately.

Although some of the more conservative Grey Knights were quite dissatisfied with forming an alliance with a group of "xenos creatures" whose nature they did not even fully understand.

The sight of Skulltaker, Khorne's Archdevil who had been compleated by Phyrexian Oil, in particular made these elite Adeptus Astartes, who had fought Demons for so long, feel uncomfortable from head to toe.

Though they knew that Phyrexian Oil could devour and control Demons in the material universe, they still had difficulty getting past that mental barrier.

Yet under the forceful push of the Imperial Regent, they began making contact step by step under the pretext of investigating the Thousand Sons Legion.

Before long, the Grey Knights were