Path of the Dying Sun

This Primal Path Allows Barbarians to Harness Heat as their source of power and damage. As a Barbarian Progresses through this Paths Features the Power of the Sun entombed within their bodies grows at exponential rates throughout combat, allowing them to release the burning energy onto their foes. This Entombed Heat also allows the Barbarian who so chooses this path to aid their allies in battle in very specific ways. 

Molten Aura

Starting when you choose this path at 3rd level, when your not raging a 15ft Orange Aura glows in a radius of dim light around you, creatures who are not allied with you feel uncomfortable heat when they stand within this 15ft radius, you have advantage on intimidation rolls against creatures affected by the aura. When you enter your rage the 15ft Radius Glows brighter casting out bright light, creatures who are not allied with you that start their turn in this aura take 1d6 fire damage, this damage is increased to 1d8 at level 6, 1d10 at level 10, 2d8 at level 14, and 2d12 at level 20. 

Impervious Heat

Starting at 6th level, You gain resistance to Fire damage, and you can no longer be effected by the conditions of extreme heat as described in the Dungeon Master's Guide. While Raging all non-magical objects of your choosing within your Molten Aura may burst into flames, additionally while raging you leave behind small burning fires in the ground where ever you step in your rage. While you not raging you may use an Action to touch a non-magical object and cause it to burst into flames. 

Searing Defense

At 10 level, Allied creatures who stand within your Molten Aura now have resistance to Fire Damage, in addition You and Your Allies gain advantage on Dexterity saves against spells that deal Fire Damage. Should You or an Allied Creature succeed the Spells Saving Throw you instead take Quarter Damage. 

Solar Vengeance

At level 14, When you have taken damage from a creature you can see, on your turn your speed is doubled while moving towards that creature. Upon reaching that creature you may take an additional attack against them after your main attack action. Furthermore, if a creature makes a melee attack against you and they are standing within your Molten Aura you may use your reaction to make a single attack action against them. After you make this reaction attack the creature makes a Dexterity Saving Throw, on a failed save they take Fire Damage equal to your Barbarian Level, or half as much on a successful save.