Before making a Casting roll, any Liche Priest within a Mortuary Cult army may draw upon the magical animus of any nearby undead constructs. To do so, nominate a friendly unit that has the Nehekharan Undead special rule, that is within the Liche Priest's Command range and whose troop type is swarms, monstrous infantry, monstrous cavalry, monstrous creature or behemoth. The nominated unit immediately loses 1-3 Wounds, as chosen by the controlling player. The Liche Priest may then modify their Casting roll by adding the number of Wounds lost by the nominated unit to the result.

Note that this is a modifier to the result of a roll – it does not negate a roll of a natural double 1.