Unquenchable Fury

Anger is a powerful tool. This bargain stokes it into a formidable inferno, but it threatens to consume everything in its path.

Furious Onslaught.

As a Bonus Action, or when you take the Attack action on your turn, you can choose to enter a fury. While in this fury, you can make one additional melee attack when you take the Attack action on your turn, and you reduce all damage you take by an amount equal to your Proficiency Bonus. The fury ends if you have the Incapacitated condition, if you die, or if you end your turn and there are no creatures within 60 feet of you that you can see or hear.

Once you use this feature, you can’t use it again until you finish a Long Rest. You also regain the use of this feature when you kill a Humanoid.

Red Haze.

While you are in a fury, you must make a DC 15 Wisdom saving throw at the start of each of your turns. On a successful save, you can choose to end your fury or continue it. On a failed save, you no longer make the saving throw at the start of your turns, and you regard the creature nearest to you that you can see or hear as your enemy (if there are multiple, choose one at random). On each of your turns, you must move as close to the creature as possible and take the Attack action, targeting that creature with melee attacks. If you’re unable to get close enough to the creature to attack it, your turn ends after you’ve used up all your available movement. If the creature dies or can no longer be seen or heard by you, the next nearest creature that you can see or hear becomes your new target.