Path of the Reaver

After a barbarian invokes the power of the dragons, they become a Reaver. A Reavers pain is their gain, taking more damage for them means dealing more damage, and momentarily taking less elemental damage.

Bloodied fury

Starting when you choose this path at 3rd level, you can go into a Bloodied fury when you rage. If you do so, for the duration of your rage when you take damage, you deal an additional 1d8 of damage on your next attack. You also get a constant resistance to fire, lightning, psychic, radiant, and cold damage

Violent rebuttal

Beginning at 6th level, while not raging you deal an additional 1d6 damage on your next attack, after taking damage. This also scales with your level. As a bonus action you can take 1d6 of damage, which would trigger violent rebuttal and bloodied frenzy.

Revitalization

Beginning at 10th level, after making an attack on a creature, as a reaction you can regain health equal to half of the damage dealt to the creature. You have charges of this equal to your STR modifier, and it has a 1 turn cooldown

Cleaving rush

Starting at 14th level, you can use an action to make a cleaving rush. you charge forward 20ft. with your weapon ahead of you and deal damage equal to a melee strike + 2d6 to each creature in your path. This has a 1 turn cooldown, and does not allow you to move afterward.