Shield Expertise

your shield is now an impregnable defence and a mighty offence

• prerequisites: you must be proficient with a shield 
• using your bonus action you may attack with your shield, on a hit you do 1d6+STR bludgeoning damage
• using your bonus action you may attempt to knock a target within 5t of you prone if they fail a STR DC of 8+STR+PROF
• you can not use your bonus action to attack a target and knock them prone
• you gain an extra +1 to AC when using a shield