Enhanced shield Master

Your mastery of shields allows you to extend its protective benefits to those around you. You gain the following benefits while you are wielding a shield:

• If you aren't incapacitated, 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 an effect moves you against your will along the ground you can use your reaction to reduce the distance you are moved by up to 15ft.
• If you, or any friendly creature within 5ft, are subjected to an effect that allows you to make a Dexterity saving throw to take only half damage, you can use your reaction to take no damage if you succeed on the saving throw, planting your shield between yourself and the source of the effect. When planted, it acts as half cover until picked up again.