Shield Defender

You have continued mastering the flow of combat with a weapon and shield, honing your understanding and reflexes to use the shield in close quarters as a deadly part of your maneuvers.  

(Bonus Action): melee attack modifier is strength + proficiency to hit, and 1d6 + strength modifer damage; on a hit the opponent must make a dexterity saving throw equal to 10 + wielder strength modifier or be shoved 10' and eliminating opponents Attacks of Opportunity.

Saving throw bonus:  The base Shield Armor AC (+2) adds to Dexterity Saves; successful saving throws that equate to 1/2 damage equals 1/2 of that damage with large shields.