Each time an enemy unit is selected to shoot or fight and one or more TZEENTCH MUTANT INFANTRY or TZEENTCH MUTANT MOUNTED units from your army are selected as a target of one or more of those attacks, each of those TZEENTCH MUTANT units can make a Warpmeld Sacrifice. If it does, until the end of the phase, each time an attack targets that unit, subtract 1 from the Wound roll. At the end of the phase, that TZEENTCH MUTANT unit suffers D3 mortal wounds.
Each time a TZEENTCH MUTANT INFANTRY or TZEENTCH MUTANT MOUNTED unit from your army is selected to shoot or fight, before selecting its targets, that unit can make a Warpmeld Sacrifice. If it does, until the end of the phase, each time a model in that unit makes an attack, add 1 to the Wound roll. At the end of the phase, that TZEENTCH MUTANT unit suffers D3 mortal wounds.