Shielded Combatant

The shield in your hand is as much a weapon as your sword, and you are braced to use it as such. While you are wielding a shield, you gain the following benefits:

• While you are wielding a weapon with the versatile property, you may perform damage rolls with either of that weapon's damage dice when making a melee attack with that weapon. You are still treated as if you were holding that weapon in one hand.
• When you land a critical hit with a melee weapon attack against a creature within 5 ft. of you that is not prone or more than one size larger than you, you may, as part of that attack, attempt to shove that creature with your shield. If the creature you are attempting to shove in this way is not a size larger than you, that creature performs its contesting Strength (Athletics) or Dexterity (Acrobatics) check with disadvantage.
• When you take the Attack action on your turn, you may perform an additional melee weapon attack with your shield that has a range of 5 ft. as part of that action. You are proficient with this attack, and gain a total bonus to your attack roll equal to your Strength modifier + your shield's AC bonus + your proficiency modifier, and deal 1d6 + your Strength modifier + your shield's AC bonus in bludgeoning damage on a hit. If you are already benefitting from the Extra Attack feature or another feature that would grant you additional attacks, you cannot perform the additional attack granted by this feat, but you may instead replace any one of your attacks made as a part of your attack action with an attack with your shield.