Oni Barbarian (legacy)

Path of the oni barbarian subclass

Devil's Fury

Starting when you choose this path at 3rd level, you can channel fiendish fury into your weapon strikes. While you’re raging, your weapon burns with devilish energy and every attack you make deals extra damage equal to 1d6 + half your barbarian level. The extra damage is necrotic.

Hellish Features

At 3rd level, when you enter your rage, you can transform, revealing the fiendish power within you. Until your rage ends, you are Resistant to fire damage and you manifest a natural melee weapon, choosing one of the following options each time you rage (Must Flip a coin, Heads = Horns and, Tails = Fangs):   

Demon Presence

At 6th level, you gain some mastery over your On! powers, and use them to aid your allies. If you are raging and another willing creature you can see within your ( base movement speed) of you is attacked, you can use your reaction to switch places with them taking the attack instead and not being able to move on your next turn.

Blood Thirst

Beginning at 10th level, you go into a bloodthirst when you rage for more than 12 seconds(2 rounds). If you do so, for the Remaining duration of your rage you can make a single melee weapon attack as a bonus action on each of your turns after this one. When your rage ends, you suffer one level of exhaustion. 

Rage Beyond Death

While you’re raging, having 0 hit points doesn’t knock you unconscious. You still must make death saving throws, and you suffer the normal effects of taking damage while at 0 hit points. However, if you would die due to failing death saving throws, you don’t die until your rage ends, and you die then only if you still have 0 hit points.