A Rotting Rider
The Rotting Riders were Plague Knights in the service of Nurgle, the Chaos God of disease and decay, and commanded by the Champion of Nurgle and Chaos Lord Gutrot Spume.[1a]
Though the rust-gnawed Chaos Armour that protected Spume's infamous Chaos Knights appeared on the verge of collapse, the riders that wore it had flesh as hard as oak and a truly vicious temperament.[1a]