Lightning Draw

"After mastering the sword you have learned to draw your blade unbelievably fast to counter anyone who would dare strike you down!"

While your sword is sheathed, and when a creature within 5 feet attacks you, you can roll for an attack to counter and/or strike the said creature attacking, failing the roll will add 1d10 to the creature's attack damage. Rolling a Nat 20 will add the additional effect of the attacking creature to be disarmed and/or their weapon broken, while rolling a Nat 1 will add the additional effect of causing you to be disarmed and/or your weapon to become broken.