Annihilation Legion

Each time a DESTROYER CULT or FLAYED ONES unit from your army declares a charge, you can re-roll the Charge roll. If one or more targets of that charge are Below Half-strength, add 1 to the charge roll as well.
Each time a DESTROYER CULT unit from your army makes a ranged attack that targets the closest eligible target, add 1 to the Armour Penetration characteristic of that attack.