SAVAGE DISTRACTION

Use this Stratagem in the Fight phase, when an enemy unit is destroyed as a result of an attack made by a model in a unit from your army. In your opponent's next Shooting phase, that unit gains the following ability: Savage Distraction (Aura): While an enemy unit is within 6" of this unit, each time a model in that enemy unit makes a ranged attack against another unit from your army, subtract 1 from that attack’s hit roll.