Path of Fury

For some barbarians, rage is a means to an end—that end being violence. The Path of Fury is a path of untrammeled fury, slick with blood. As you enter a furious rage, you thrill in the chaos of battle, heedless of your own health or well-being. You are untethered and your rage knows no bounds.

"You ever been in a storm, you know...a real storm? Not a thunderstorm, but a storm of fists raining down on your head. Blasting you in the face. Pummeling you in the stomach. Hitting you in the chest so hard you think your heart's gonna stop. You ever been in a storm like that?" -Dennis Reynolds, famous rage monster

Fury

Starting when you choose this path at 3rd level, you can go into a fury when you rage. If you do so, for the duration of your rage you can make a single melee weapon attack as part of your action on each of your turns after this one. When your rage ends, your movement speed is reduced by 10 for 1d4 hours.

Mindless Rampage

Beginning at 6th level, you now have immunity to the frightened condition. If a large or smaller creature tries to frighten you, they must then make a Wisdom saving throw (DC equal to 8 + your proficiency bonus + your Strength modifier). On a failure, that creature is then frightened of you until the end of your next turn. On a success, nothing happens.

Frightening Aura

Beginning at 10th level, you can use your action to frighten someone with your menacing presence. When you do so, choose three creatures that you can see within 30 feet of you. If the creature can see or hear you, it must succeed on a Wisdom saving throw (DC equal to 8 + your proficiency bonus + your Charisma modifier) or be frightened of you until the end of your next turn. On subsequent turns, you can use your action to extend the duration of this effect on the frightened creature until the end of your next turn. This effect ends if the creature ends its turn out of line of sight or more than 60 feet away from you.

If the creature succeeds on its saving throw, you can’t use this feature on that creature again for 24 hours.

Retaliatory Blow

Starting at 14th level, when you take damage from a creature that is within 5 feet of you, you can use your reaction to make a melee weapon attack against that creature. On a hit, that creature then has disadvantage on their saving throws and ability checks until the start of your next turn.