Delvarus

Delvarus was a champion of the Triarii, the World Eaters' honour guard, and one of the Legion's most storied killers in an age that measured worth in little else. A Nucerian by birth like his primarch, he carried the swagger of the fighting-pits into every war he fought, a boastful, theatrical butcher who treated battle as the arena writ large and the taking of heads as a performance owed to his watching brothers. Where some World Eaters killed in grim silence, Delvarus killed with relish, and his reputation grew with every enemy champion he laid low.

The Butcher's Nails suited a temperament already inclined to violence, and Delvarus embraced their gift without the ambivalence that troubled quieter souls. In the Heresy he was among the World Eaters loosed to do what they did best, his skill making him a terror on battlefields where terror was the Legion's chief export. He embodied a particular strain of the XII's character, not the pained enslavement of Angron nor the tragic decline of Khârn, but something older and simpler, the gladiator who had discovered that the thing done to him could be turned outward, and who had decided, somewhere along the way, to enjoy it.