The Wolfspear is a Loyalist Space Marine Chapter comprised entirely of Primaris Space Marines, created from the lineage of the Space Wolves and raised during the Ultima Founding of 999.M41. These supreme transhuman warriors were created by order of Roboute Guilliman, the recently resurrected Primarch of the Ultramarines, who had tasked Archmagos Dominus Belisarius Cawl with crafting a legion of new transhuman warriors to serve as Humanity's last line of defence following the Horus Heresy. Even then, Guilliman foresaw a time of encroaching darkness when Chaos would threaten the galaxy itself. These gene-crafted warriors are intended to protect the Imperium of Man against the gathering darkness from Chaos, xenos and the myriad threats that threaten the Imperium on all sides. They are the key components of the resurrected Primarch's Indomitus Crusade to reclaim the galaxy for Mankind.
The Wolfspear was created after the end of the Indomitus Crusade by Lord Commander of the Imperium Guilliman from the ranks of his Unnumbered Sons. They were tasked with guarding the Pit of Raukos to prevent any further use of that Warp rift by the Forces of Chaos to assault the nearby Imperial worlds. The Astartes of the Wolfspear were not happy with being placed permanently on garrison duty, hoping to remain on the frontlines of battle, as befit true sons of Leman Russ. The Astartes of the Wolfspear suffer from a deep burden -- though they know their progenitors, the Space Wolves, have accepted Primaris Space Marines like them into the ranks of their Chapter, there are still many within the Space Wolves who have not yet decided whether to accept Primaris Astartes as true inheritors of the legacy of the Wolf King. Their Chapter homeworld is located at 108/Beta-Kalapus-9.2 in Wilderness Space.
For ten millennia, Archmagos Dominus Belisarius Cawl has been working on a task set for him by the Primarch Roboute Guilliman before he was mortally wounded by the Daemon Primarch Fulgrim in the days after the Horus Heresy: a new legion of transhuman warriors. Developed on orders from Guilliman 100 standard centuries past, Primaris Space Marines were diligently developed and perfected by the Priesthood of Mars during the long intervening millennia. As an optimist, but never a fool, Guilliman learned from the mistakes of the Horus Heresy, and he foresaw that the Forces of Chaos would never relent in their aim to bring the Imperium low. He anticipated that devastating times would once again engulf the galaxy and knew that warriors resilient enough to stand against them would be needed as never before. That time has surely come. Now, as the Imperium of Man is poised on the brink of annihilation at the hands of Chaos, his task is at last complete.
The Primaris Space Marine is a new breed of hero for this, the darkest age in the Imperium's history. These new warriors are the next step in the evolution of the Emperor's Angels of Death -- genetically altered from their brethren to be bigger, stronger and faster -- timely reinforcements for the Imperium's armies as their enemies close in for the kill in the wake of Abaddon the Despoiler's 13th Black Crusade and the birth of the Great Rift dividing the Imperium in two.
To aid them in battle, these gene-forged warriors are equipped with new arms and armour forged on Mars itself, such as the Mark X Tacticus Pattern Power Armour worn by the Primaris Space Marine Intercessors, which combines the most effective elements of ancestral Horus Heresy patterns of battle-plate with more recent developments in Power Armour technology; the Mark II Cawl Pattern Bolter, the archetypal firearm of the Adeptus Astartes, now re-engineered, re-crafted and perfected, and Redemptor Dreadnoughts.
At the dawn of the Indomitus Crusade to retake the Imperium from the advancing armies of Chaos and xenos alike, Lord Commander of the Imperium Roboute Guilliman has gathered his new armada, along with elements of the Adeptus Custodes, a small contingent of the Silent Sisterhood and a vast war host of Primaris Space Marines as he fights to liberate the scattered bastions of the Imperium. Some, Guilliman has forged into new Space Marine Chapters, whole brotherhoods comprised only of these new transhuman warriors. Others he has offered to the existing Space Marine Chapters. Many Chapter Masters have welcomed their Primaris brethren into their ranks, accepting the new reinforcements gladly. Others, though, view these new creations with suspicion or outright hostility, claiming that the Emperor's work should never have been meddled with by mere mortals.
Though they are a step removed from their brothers, the Primaris Space Marines still bear the gene-seed of their Primarchs, and some dissenting voices worry how this new type of warrior will react with the known genetic quirks and flaws of some of the more unusual Chapters, such as the Blood Angels and the Space Wolves. Though the Primaris Space Marines offer new hope to a besieged Imperium, the future remains a dark and uncertain place...
- Guardians of the Pit of Raukos (Unknown Date.M42) - During the Indomitus Crusade, Guilliman and his forces fought a major battle against the Forces of Chaos who had emerged from the Pit of Raukos, an ancient Warp rift located in the star system that orbited the dying sun designated 108/Kapalus-9. The Pit was an old anomaly, predating the violent turbulence in the Warp that had created the Great Rift and was located in a region of Wilderness Space that had never been claimed by the Imperium during the Great Crusade. The Pit of Raukos was a deep rift in realspace that was used frequently by both daemons and Chaos Space Marine warbands to launch raids into the surrounding Imperial space with relative impunity. Guilliman's Astartes defeated the Forces of Chaos near the Pit, finally clearing the system of all the forces of the Archenemy. In the wake of the Imperial victory and after the end of the Indomitus Crusade, Guilliman ordered the creation of the Wolfspear Chapter of Primaris Space Marines from among the members of the Unnumbered Sons to take up permanent garrison duties near the Pit of Raukos, to prevent the Warp rift from ever being used by the servants of the Ruinous Powers again. This was an unpopular decision with the Primaris Space Marines of the Wolfspear, who sought always to remain on the front lines of the Imperial counteroffensive as they believed proper for true sons of Leman Russ.
- Sergeant Bjarni Arvisson - Bjarni Arvasson was originally a Sergeant in command of an Inceptor Squad in the Unnumbered Sons, the nine Legion-sized forces created by Roboute Guilliman which comprised half of the Primaris Space Marines created during the Ultima Founding who were not placed within the normal Adeptus Astartes Chapter structure. He, along with many of his Space Wolves-derived brethren, were formed into the Wolfspear Chapter to guard the Pit of Raukos.
The Wolfspear's Chapter colours are currently unknown in Imperial records.
The Wolfspear's Chapter badge is not currently listed in Imperial records.
- Dark Imperium (Novel) by Guy Haley, Chs. 6, 15