The Khorne Berzerker is a warrior consumed utterly by the Blood God's rage, a killing machine driven by an unquenchable thirst for slaughter. Bearing the Butcher's Nails implanted within his skull, he feels reward only in the act of murder, and torment in every moment that his blade is not wet with blood.
In battle the Berzerker abandons all caution, all strategy, all thought beyond the next kill. He charges headlong into the foe, chainaxe roaring, screaming praises to Khorne as he hacks bodies apart in a red frenzy. So deep is his madness that he scarcely notices his own wounds, fighting on through injuries that would fell a lesser warrior, heedless of anything but the harvest of skulls.
The Khorne Berzerkers are the savage heart of the World Eaters, a Legion long ago driven to ruin by the Nails and by their primarch's fall. Among the Chaos Space Marines they are the ultimate close-assault troops, a tide of berserk fury that offers every death upon the field to the throne of the Blood God.