Brace for Impact

When you are hit by an attack, or are forced to make a Strength, Dexterity, or Constitution saving throw, you can use your reaction to assume a defensive stance. You cannot use this feat while blinded unless you have Blindsight.

You gain the following benefits until the end of the turn:

• You have resistance to all damage dealt by the triggering attack or effect, except poison and psychic damage. 
• If the triggering effect would cause you to make a Dexterity saving throw, you can make a Strength or Constitution saving throw instead.
• As long as you are mounted or your feet are touching the ground, you cannot be moved or knocked prone. If your mount is moved, you move with it.

 Once you use this feat, you must finish a short or long rest before you can use it again.