Spear of Russ
The Spear of Russ is a legendary artifact of the Space Wolves chapter, which was wielded by their primarch Leman Russ. It was snatched up by the Wolf Lord Garm and used to injure Magnus the Red, primarch of the Thousand Sons, when Leman Russ stumbled in battle against him, buying Russ the opportunity to drive off the traitor, albeit at the expense of Garm's own life.
The Spear was stored for millenia in the Shrine of Russ on the planet Garm, named for the Wolf Lord who fell there. Prophecies of the Space Woles state that, when Leman Russ returns for the Wolf Time he will return to Garm to reclaim his weapon.
The Spear was lost, however, when elements of the Thousand Sons, including the sorceror Madox, stole it for use in a ritual to bring their primarch through to the material world from the warp. The Great Company of Wolf Lord Berek Thunderfist were able to interrupt the ritual and (then Blood Claw) Ragnar Blackmane seized up the Spear of Russ and hurled it through the warp portal into the the single cyclopean eye of Magnus the Red. This injured the ancient primarch and closed the portal that, potentially, threatened to overwhelm the whole planet, but at the cost of losing the Spear of Russ into the warp.
