Hurricane Edge

Prerequisite – 11th level

When you make a whirlwind attack action, you can expend two superiority dice to modify the action. When you do, whirlwind attack’s range changes to 20 feet, and each creature you would make a melee attack against instead must make a Dexterity saving throw. Creatures who fail their saving throw suffer the whirlwind attack’s normal effects plus damage equal to two rolls of your superiority die. Creatures who succeed their saving throw take half of that damage.