Nurgle

Has the Daemon rule, Hatred (Daemon of Tzeentch), Shrouded and Slow and Purposeful.

A unit that contains at least one model with this special rule cannot Run, Turbo-boost, move Flat Out, perform Sweeping Advances or fire Overwatch. However, they can shoot with Heavy, Salvo and Ordnance weapons, counting as stationary even if they moved in the previous Movement phase. They are also allowed to charge in the same turn they fire Heavy, Ordnance, Rapid Fire or Salvo weapons.

A unit that contains at least one model with this special rule counts its cover save as being 2 points better than normal. Note that this means a model with the Shrouded special rule always has a cover save of at least 5+, even if it's in the open.

Cover save bonuses from the Shrouded and Stealth special rules are cumulative (to a maximum of a 2+ cover save).