Each time this unit makes an **ingress move** (20.04), if every model in this unit has this ability, it can be set up anywhere on the battlefield that is more than 8" horizontally from all enemy units, even if that is within your opponent’s deployment zone.
If your Army Faction is **^^Grey Knights^^**, at the end of your opponent’s Fight phase, you can select a number of units from your army that are on the battlefield (excluding units that are within Engagement Range of one or more enemy units), providing every model in those units has this ability. The maximum number of units you can select depends on the battle size, as follows: Incursion - Up to 2 units Strike Force - Up to 3 units Onslaught - Up to 4 units Once you have made your selections, remove those units from the battlefield and place them into Strategic Reserves.
Each time a model in this unit makes a melee attack that targets a unit (excluding Vehicles or Monsters), improve the Armour Penetration characteristic of that attack by 1.