Wall Break

A projectile weapon with the "Wall Break" ability means its projectiles can pass through walls. These are the weapons with Wall Break. Wall Break includes the Piercing Shot attribute

In an update between 15.xx.xx to 16.xx.xx, when hitting targets through walls, it reduces the damage by 50% or 75%. (However the Ice Club, Battle Falcon, Farewell Volley, Hocus Pocus and Thor Hammer are exceptions)