Fire a cannonball at target, dealing physical damage. If they die, the cannonball ricochets to the nearest enemy, dealing the overkill damage. When it does, permanently gain % Attack Damage.
This trait is active only when you have exactly 1 or 4 unique Emissaries. Ambessa: Allies gain 2 Armor and Magic Resist for each opponent defeated. Garen: On Combat Start, Garen and allies to his left and right gain 20% of his max Health. Nami: Allies' attacks grant 2 bonus Mana. Tristana: Allies gain 6% Attack Speed per star level.
Every 5 attacks, Artillerists launch a rocket that deals 125% Attack Damage around the target. They also gain Attack Damage.