"Why avoid a barrier when you can break through it?"
A shield is a mighty piece of weaponry and armor that is often difficult to bypass, but a Shield Breaker has the ability to plow through such armament with ease. Breaking barriers and exposing weakness are just a few attributes they are privy to adding another layer of complexity to combat.
Armor Penetration: Slashing
Armor Penetration: Crushing
Armor Penetration: Piercing