Path of the Brawler

Barbarians are known for their prowess in combat.  For some, simply being good is not enough.  Some want to add a challenge to their fight, bask in more personal glory, or make the fight fair for others.  These barbarians eschew traditional weapons in favor of their own body and what they can find lying around

Fists of Steel

At 3rd level, you become skilled at fighting without conventional weapons.  You gain proficiency with unarmed and improvised weapons.  Additionally, you do 1d6 damage with both these weapons and can make an extra melee attack as a bonus action

Unbreakable Chin

At 6th level, you gain the ability to absorb even more damage than normal and allow it to fuel your attacks.  While you are raging, you are immune to being stunned.  Also while you are raging, when you take damage, your next attack does an additional 1d6 of damage to the creature that attacked you. 

Fight Through the Pain

At 10th level, you learn to fight through the pains of combat.  You can use an action you can expend up to one-third (rounded down) of your hit die to heal.  You cannot do this again until you complete a long rest.

Unrelenting Beatdown

At the 14th level, you learn to unleash your rage into one devastating assault.  While you are raging you can, as a bonus action, make 5 extra unarmed or improvised weapon attacks at advantage.  Once this assault ends, enemies have advantage against you on melee attacks and your rage ends.