Path of the Demon

The Path of the Demonborn is one not easily traveled. Those who do harness the very powers of hell itself to empower their rage. The hellfire they summon upon raging is strong enough to debilitate their foes. There are many ways a clan could encounter these secrets. The clan could have made a deal with some fiend for this power. or surviving a hellish world or landscape is enough for them to learn how to control it.

Hell's Fury

Starting when you choose this path at 3rd level, your rage bonus damage is now fire damage. This damage cannot be prevented in anyway due to immunities or resistances. In addition. The damage a creature takes from your rage bonus damage cause the target to have a penalty to their next attack or saving throw they make equal to the damage. A target can only be affected by this penalty once.

Inner Demon

Beginning at 6th level, when you enter a rage non friendly creatures within 30 feet of you must roll a charisma save versus 8 + your proficiency + your rage bonus damage or become frightened of you. A creature may repeat this saving throw at the end of each of their turns. In addition you also gain temporary hitpoints equal to twice your rage bonus damage.

Rising Anger

Beginning at 10th level, while you are raging your bonus rage damage is increased by 1 for every instance of damage you have taken and dealt since the end of you last turn.

Unleash Hell

Starting at 14th level, as a bonus action on your turn you may choose to unleash hell. You gain a number of extra attacks equal to half your current rage bonus damage. At the end of your turn you take fire damage equal to your rage bonus damage. This damage cannot be prevented by any resistances or immunities.