Sword and Board

while you are wielding a shield:
    If:
        * you take the Attack action on your turn
    then:
        * you can use a bonus action to:
            * with your shield, try to shove a creature within 5 feet of you
    If:
        * you aren't incapacitated
    then:
        * 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.
    If:
        * you are subjected to an effect that allows you to make
          a Dexterity saving throw to take only half damage
        * you succeed on the saving throw
    then:
        * you can use your reaction to take no damage