Wind Guard

You weave the air currents around you to shield yourself from harm.

Whenever an enemy targets you with a ranged weapon attack or a ranged spell attack, you can use your reaction to impose disadvantage on the attack roll. This must be done before the attack is rolled.

Alternatively, when subjected to an area of effect that requires a Dexterity saving throw, such as a dragon's breath weapon, you can grant yourself advantage on the saving throw. This, also, must be done before the saving throw is rolled.