Shield Grandmaster

You use shields not just for protection but also for offense. You gain a number of shield points equal to your Prof bonus.You regain expended Points when you finish a long rest.You can spend a point to use one of the following abilities each turn. While you are wielding a shield:

• If you take the Attack action on your turn, you can use a bonus action to take the Dodge Action. 
• As a reaction, you can add your shield's AC bonus to any Dexterity saving throw you make.
• While equipped with a shield you gain +2 to your AC until the beginning of your next turn. 
• When you are engaged with an enemy that attempts to take an action that would provoke an attack of opportunity from you, they must first succeed Wis save (DC equal to your Armor Class) if they fail the save, their action is expended but it does not succeed.