Well for starters it is an absolute imperative to have them ingame at some point, I mean what is CHAOS without its demons
PLAGUEBEARERS- should be slow and cumbersome , just like chaos warriors, should have no armour but should regenerate health at a pretty fast rate, they should have something like BUBOLES on them ( a finite number , let’s say 2-3) wich should spray u with puss when u break them. Should have poison attacks and explode into puss when they die. Something like a mini boss actually. There should only be one active at any point…summoned by a sorcerer would be the best way…and if u interrupt the summon the demon disappears , you can use one of the existing sorcerers (blightstormer comes to mind) or create a new subtype
PLEASE FOR THE LOVE OF NURGLE MAKE NURGLINGS
they should come from small hives, (like the buboles) be like the little rats that roam the levels easy to kill low damage, more annoying than dangerous for full health heroes , but able to bring down a injured hero, u kill the hive and they stop coming.
GREAT UNCLEAN ONE
Remember concocation of decay? well what if they managed to summon the demon?
Should only be half summoned like the demon in DAWN OF WAR 2. Should be up to his belly in entrails , unable to move…have a huge slow swing that poisones heroes, a barf just like the troll , regeneration and no armour, and of course summon NURGLINGS