Two Weapon Master

You have learned to exploit the full extent of your offhand weapon.

Once per turn, when you take the attack action, you can make an additional attack with your offhand weapon as a free action. This makes you unable to utilize any bonus action attacks until the end of your turn.

As a reaction to being targeted by an attack while wielding two weapons, you can make an attack roll using either of your weapons. If the result is higher than the incoming attack roll, the attack aimed at you misses, as you deflect the blow.