Instead of performing a standard Block Reaction, you may perform a Barricade.

When you do, you gain a damage reduction pool equal to 6 + your Shield Bonus until the start of your next turn. This pool can be applied to multiple attacks, with each attack reducing the remaining pool.

Unlike a standard Block Reaction, Barricade can reduce damage to 0.

This maneuver works against both Melee and Ranged Attacks.