Path of the Posssesed

You have been possessed by a spirit or demon Binding it to your soul. it might be the spirit of a fallen samurai looking for a way to get his vengeance, or a demon that possessed you when you were exploring an abandoned temple when you were a kid, or you might have touched a cursed item when you were a kid, or you might have touched a cursed item whose previous owner had sworn to protect it and did so even after its death.

The Darkness Within

At 3rd level, Your rage is no longer fueled by your own anger but by the spirit or demon possessing you. Because of this, you can no longer get Charmed or Frightened while raging. The possessing spirit or demon also amplifies your own anger. When you rage your eyes glow like a purple flame and your canine grow in size.

Ravenous Fury

By 6th Level, The spirit or demon possessing you has formed a bond with your weapon. As an action, you can call your weapon to your hand and imbue it with darkness. For one minute it now has the throw property, after throwing or dropping the weapon you can use a bonus action to call it back to your hand. You can use a bonus action to call it back to your hand. You can add (your proficiency bonus - 2)d6 damage to your attack rolls with the weapon. The weapon also emits dim light in a 10 ft radius.

Growing Darkness

At 10th level, You get more used to the possessor and get some of its abilities. You have true-sight out to a range of 60 feet. Twice a short rest you can hurl a shadow bolt at one creature within 60 feet range. Make a ranged spell attack against the target. On a hit, the target takes 2d10 damage.

Anger Unleashed

When you reach 14th level, You can use an action to let the spirit or demon possessing you empower you, releasing a wave of dark magic dealing 4d6 to everybody in 10 feet of you. While raging your AC increases by 1 , you cant be Blinded or Poisoned and can use your bonus action to attack a 3rd time. You need to take a long rest before you can use this feature again.