Path of the Reaver

Anyone that has the fortune, be it good or bad, to encounter a high dragon and survive that encounter would be hard pressed to not envy their power. Warriors who take in this power are gifted with many aspects of the beasts, typically however, the ferocity and bloodlust are the most notable.

Blood Frenzy

By dealing or self-inflicting at least 8 damage to an enemy with a single melee attack(while Raging), you increase your Strength score +1. At 6th, 10th, and 14th level this bonus increases by an additional +1, but the damage also increases by 4 each time, to a maximum of 20 damage. This bonus lasts a number of rounds equal to 1/2 of your Barbarian level and cannot be stacked. Self-inflicting the damage is a bonus action.

Devour

By spending 1 minute with a body, no longer dead than 1 hour, you heal 5 hitpoints per barbarian level.

Aura of Pain

At 10th level you can activate an aura that radiates psychic damage. This aura can be activated/deactivated as a bonus action. When active, all creatures within 10 feet, including self, take 1/2 of your Barbarian level in psychic damage. This damage cannot be blocked or resisted and occurs at the beginning of each creature's turn. This damage does count towards Blood Frenzy.

Fervor

By 14th level, you have been close to death so many times, often at your own hands, that it takes very little to activate your blood magic related abilities. When you are under half of your hitpoint maximum, your Blood Frenzy is active for your entire rage. Your Aura of Pain no longer deals damage to yourself. Your rage also persists until you choose to end it or are incapacitated.