Shield Master

• If you aren't incapacitated, you can add your
shield's AC bonus to any Dexterity saving throw
you make against a spell or harmful effect that
targets only you.
• If you are subjected lo 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,
interposing your shield between yourself and the
source of the effect.