Reflexes

You have learned to take better awareness of your surroundings. Whenever an opponent misses an attack on you, you can perform a reaction an make a attack back.

If they miss a melee attack, you can make an attack with a sheathed melee weapon on your opponent, or perform a close range spell

If a thrown item misses you, you make a DC 10 strength saving throw, and can catch the item, or a DC 15 (DC 10 still if item is small and light), and can throw the item back, otherwise it falls like normal

If a shot at you misses, on a DC 10 saving throw, you can catch the ammunition