Path of Conflagration

The Path of Conflagration draws on the forces of the Elemental Plane of Fire to bring its cleansing powers to bear on corruption in the Material Plane. It's a frustrating battle as the odds are firmly against you, but Path of Conflagration barbarians aren't known for checking the odds before a fight.

 

Ablaze

Starting when you choose this path at 3rd level, you are set ablaze when you rage - your body and weapons completely sheathed in flame to which you are impervious. For the duration of your rage, your flaming weapon(s) does an additional 1d8 fire damage on a successful hit. 

This damage scales to 2d8 at 7th level, 3d8 at 11th level, and 4d8 at 15th level. 

While in this form, you are immune to fire damage.

When your rage ends, you suffer one level of exhaustion (as described in appendix A of the PHB).

Fire Thrower

Starting at 6th level, as an action, you can mimic throwing your weapon and send out a flaming spectral shape of that weapon as a ranged attack. Your attack has a range of 60 feet after which the image dissipates and is harmless.

The flaming image does the same damage as if you were making a melee attack with it along with any magical benefit to hit or damage. 

This damage scales as does your fire damage from the Ablaze ability. 

Firebright

Starting at 10th level, once per long rest, while in a rage, you can flare yourself to a brightness that can blind your enemies.

As a bonus action your flare will blind any enemy in a 30 foot radius of you unless they make a DC 17 CON saving throw. If they succeed, they suffer no effect. If they fail, they are blinded until the end of their next turn. 

Flaming Rebuke

Starting at 14th level, if a melee attack hits you while you are ablaze, fire shoots from your body in the form of a melee attack at the attacker. On a hit, the shot does 4d8 fire damage, half as much if they make a successful DC 15 DEX saving throw.