The Dark Brethren
(Rule)Description: Effects
• At the start of the battle, after both sides have deployed their entire army, excepting only those units deploying by means of the Infiltrate special rule, but before the start of the first turn, one unit in the enemy army that has been deployed onto the battlefield must be selected as the Sacrifice by the player of the Detachment using this Rite of War. If no enemy units are deployed on the battlefield at that point, the controlling player of the Detachment using this Rite of War must select an enemy unit from Reserves or otherwise off the battlefield as the Sacrifice. If all models in the Sacrifice unit, including any models that are assigned or have joined the unit, are destroyed or otherwise removed as casualties then the player controlling this Detachment gains one Favour of the Dark Gods and another Sacrifice unit is selected from among those enemy units deployed on the battlefield at the end of that turn by the player of the Detachment using this Rite of War. If no enemy units are deployed on the battlefield at that point then the player that controls the Detachment using this Rite of War must select one enemy unit that is in Reserves to be the Sacrifice.
• The controlling player of the Detachment using this Rite of War must assign each point of Favour of the Dark Gods to one of the units under their control as soon as it is earned. For each point of Favour of the Dark Gods assigned to a unit, its Strength, Movement and Weapon Skill are increased by +1. A unit may have no more than 3 points of Favour of the Dark Gods assigned to it (so a unit with 2 points of Favour of the Dark Gods would increase the Strength, Movement and Weapon Skill of the chosen unit by +2).
Limitations
• Any one unit from the Detachment using this Rite of War must inflict at least one unsaved Wound or Hull Point of damage on the Sacrifice unit in each of their turns or one of the units in the Detachment using this Rite of War, selected at random, suffers Perils of the Warp.
• An army that includes a Detachment using this Rite of War must have the Traitor Allegiance.