Creatures of the ruinous powers, daemons of the ruinstorm. They go by many names but during the heresy Dorn and Malcador often referred to them as the ‘neverborn’ in the siege of terra series of novels. They were part of my Word Bearer plans from the outset and I had a very specific palette in mind which was less saturated than what I tend to think of as ‘Chaos Daemons’ in 40K. Something closer to corrupted and warped flesh, waxy and unnatural. Basically how the Astartes describe them from their earliest encounters.
Although I have started with what would be considered plaguebearers of Nurgle, in the context of heresy these are simply lesser daemons of the ruinstorm and not really understood to be associated with a specific power by Imperium forces, they simply don’t have the knowledge or experience yet to recognise the difference. That was another reason to choose a neutral base palette; to draw on many different miniature designs yet blend them together into a unifying force that defies classification. Patron powers, factions, these are all unclear to the loyalist forces, only size and terrifying abilities.