Greater Shield Focus

Prerequisite: Weapon and Shield Combat Style, Shield Focus

You are even more adept at deflecting blows with your shield. Increase the AC bonus granted by any shield you are using by 1. This bonus stacks with the bonus granted by Shield Focus. Additionally, if you aren't incapacitated, you can add your shield's AC bonus to any Dexterity saving throw you make against a spell or other harmful effect that targets only you.