Path of the Demon

Barbarians that follow the path of the demon in one way or another have their soul bound to a demon. Some are the products of abyssal cults, some have been possessed in some way that still allows them agency, no mater how they got their demon their rage is fueled by the demonic strength and abyssal anger that persists in the reassesses of their soul.

Demonic Form

3rd-level Path of the Demon feature

At 3rd level when you adopt this path the taint of the Abyss begins to draw you in and transform your nature. You gain the following benefits:

• You become resistant to poison damage
• You gain proficiency with the Intimidation skill
• You can manifest demonic weapons which you can use to do a demonic strike. Demonic Strikes counts as a simple melee weapon for you, and you add your Strength modifier to the attack and damage rolls when you attack with it, as normal. Demonic strike deals a d6 of damage and can be used in place of an unarmed attack.  This damage can be Bludgeoning (Fist), Slashing (Claw), or Piercing (Tail or Horns) and increases as you gain barbarian levels. Your demonic strike grows to a d8 at level 9, a d10 at level 13, and a d12 at level 17.
• While you are raging, when you use the Attack action to make at least one demonic strike you can make one demonic strike as a bonus action.

Abyssal Adaptation

6th-level Path of the Demon feature

The Demonic Strikes from your Demonic Form count as magical for the purpose of overcoming resistance and immunity to nonmagical attacks and damage.

You can also adopt a demonic trait that you can choose to manifest. When you finish a long rest, choose one of the following benefits, which lasts until you finish your next long rest:

Armanite's Lance

As an action, you let looses a bolt of lightning in a line 60 feet long and 10 feet wide. Each creature in the line must make a Dexterity saving throw (DC equal to 8 + your Constitution modifier + your proficiency bonus) or take damage equal to a number of d8 lightning damage equal to your proficiency bonus, or half as much on a success. 

Once you use this feature, you must finish a short or long rest before you can use it again.

Hezrou's Stench

As an action, you emit a cloud of nauseating gas 10 feet around you. The cloud spreads around corners, and its area is heavily obscured. The cloud lingers in the air for the duration.

Each other creature that is completely within the cloud at the start of its turn must make a Constitution saving throw (DC equal to 8 + your Constitution modifier + your proficiency bonus) against poison. On a failed save, the creature spends its action that turns retching and reeling.  Creatures that don't need to breathe or are immune to poison automatically succeed on this saving throw.

Once you use this feature, you must finish a short or long rest before you can use it again.

Shoosuva's Sting

When you hit a creature with a Demonic Strike, you can attempt to poison the target. The creature must succeed on a Constitution saving throw (DC equal to 8 + your Constitution modifier + your proficiency bonus) or become poisoned. While poisoned, the target is also paralyzed. The target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Once you use this feature, you must finish a short or long rest before you can use it again.

Aspect of the Demon

10th-level Path of the Demon feature

 You can adopt the aspect of a powerful type of demon allowing you to manifest certain traits corresponding to that demon. When you gain this feature, choose one of the following aspects:

Balor's Pressence

You adopt the aspect of the Balor allowing you to exude an overpowering presence to punish those who would defy you. You gain the following benefits while you are raging:

You adopt the overpowering presence of the Balor allowing you to obtain the following benefits:

• Balor's Aura: While you are raging you gain a fiery aura, a creature that touches you or hits you with a melee attack while within 5 feet of it takes fire damage equal to your proficiency bonus.
• Aggressive Pursuit: When you enter a rage you can magically teleport to any uncopied space within 5 ft of a creature you can see within 90 ft. of you. Once you use this feature, you must finish a short or long rest before you can use it again.

Goristro's Might

You adopt the aspect of the Goristro and fortify your body to become an unstable force allowing you to gain the following benefits while you are raging:

• Siege Breaker: You deals double damage to objects and structures.
• Trampling Charge: Once per turn, when you move 15ft feet straight toward a target and hit it with a Demonic Strike you can deal extra damage to the target equal to your Demonic Strike die. If the target is a creature, it must succeed on Strength saving throw (DC equal to 8 + your Constitution modifier + your proficiency bonus) or be pushed up to 20 feet away and knocked prone

Klurichir's Ferocity

You adopt the aspect of the Klurichir becoming a deadly force of unyielding ferocity. You gain the following benefits while you are raging:

• Deadly Pin: Once per turn, as part of a Demonic Strike you can attempt to grapple a creature. A creature that is grappled this way is also considered restrained
• Terrifying Presence: When you enter a rage you can force each creature of your choice that you can see within 30 feet of you to make a Wisdom saving throw. (DC equal to 8 + your Constitution modifier + your proficiency bonus) or suffer one of the following effects (your choice). On a failed save, a creature becomes frightened of you for 1 minute. The frightened creature can repeat this saving throw at the end of each of its turns, ending the effect on itself on a success.

Abyssal Ressilience

14th-level Path of the Demon feature

 You have fully mastered the abyssal influences in your body and gain the following benefits:

• You gain resistance to fire, cold and lightning
• While ranging, you gain magical resistance which gives your advantage on saving throws against spells and other magical effects.
• While raging, whenever you hit a creature with a Demonic Strike you can deal an additional d8 of fire, cold or lightning damage (your choice).