The Blade of Wisdom

When rolling To Hit for a model with this special rule as part of an attack with a weapon that has the Melee type on any turn in which they are part of a successful Charge against an enemy unit, add +1 to the result of the roll if the enemy unit targeted by the attack has already been the target of a another friendly unit composed entirely of models with the Legiones Astartes (Ultramarines) special rule in the preceding Shooting phase.