If every model from your army has the CHAOS KNIGHTS or HERETIC ASTARTES keyword, you can include LEGIONES DAEMONICA units in your army, even if they do not have the Faction keyword you selected in the Select Army Faction step. The combined points cost of such units you can include depends on your battle size, as shown below.
None of these models can be your WARLORD, and they cannot be given Enhancements.
In addition, for each of the following keywords, the number of non-BATTLELINE units with that keyword you include in this way cannot be greater than the number of BATTLELINE units with that keyword you include in this way:
If your Army Faction is LEGIONES DAEMONICA, certain areas of the battlefield are considered to be within your army’s Shadow of Chaos, as follows:
While a LEGIONES DAEMONICA unit from your army is within your army’s Shadow of Chaos, each time that unit takes a Battle-shock test, add 1 to that test and, if that test is passed, one model in that unit regains up to D3 lost wounds (if that unit is a BATTLELINE unit and that test is passed, up to D3 destroyed models can be returned to that unit instead).
While an enemy unit is within your army’s Shadow of Chaos and/or it is within 6" of one or more BLOODTHIRSTER, GREAT UNCLEAN ONE, KAIROS FATEWEAVER, KEEPER OF SECRETS, LORD OF CHANGE, ROTIGUS, SHALAXI HELBANE or SKARBRAND units from your army, each time that unit takes a Battle-shock test, subtract 1 from that test and, if that test is failed, that enemy unit suffers D3 mortal wounds.