No Legion dreads the fate of the Chaos Spawn more keenly than the Emperor's Children, for there is no crueller mockery of their obsession with perfection than to be dissolved into a shapeless ruin. Every champion who seeks the favour of the Dark Gods gambles with such an end; when the blessings of the Warp overwhelm the flesh that bears them, or when a warrior's hunger for sensation drives him past the point of no return, his body unravels into a heaving mass of mutated limbs, gaping mouths, and weeping wounds, all memory and self drowned in the transformation.
For the servants of Slaanesh, this damnation often comes at the end of a long descent into excess. A warrior who chases each new thrill further than the last, who indulges every appetite until nothing can satisfy him, may find his abused form finally rebelling, curdling into a Spawn that retains only a dim and endless craving it can never name. Their fellow Heretic Astartes regard these creatures with a peculiar horror, for they are a glimpse of the abyss at the bottom of the Legion's own path. Yet they are not wasted; herded to the battlefield, the Spawn are loosed upon the foe as mindless engines of destruction, a final, ugly use wrung from what was once a proud and beautiful warrior.