Path of The Oni

Taken over by a curse, your Oni powers awaken and take full control over you. Your strength and power increase as you decimate hordes of enemies with your Kanabō in hand. When entering rage you become an oni, shaped with an oni mask and growing in bulk. A Kanabō shapes into your hand from red velvet blood. Your eyesight changes to a deep red and everything pulsates around you. The curse of becoming an oni is irreversible for the path that has been walked on can never be retraced as you are stuck with the monster inside you forever. 

Oni's Respite

3rd-level Path of the Oni feature

When entering rage your regular weapon is sheathed away into a void and is replaced with a Kanabō. It 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.

Kanabō. Your Kanabō shapes into the design of your choice. It deals 1d8+STR bludgeoning damage on a hit.

Oni's Flame. Every long rest as an action you slam your Kanabō into the ground to surround the 5ft area around you in a blood-red demonic flame that requires a dc 8+str+proficiency bonus save or deals 2d8 damage or half as much on a succeeded save. This can be done for your amount of proficiency bonus

Demon's Embrace

6th-level Path of the Oni feature

When attacking an enemy that you have attacked from the turn before, the target creature will emit a burning 5ft radius that deals 3d6 damage to target creatures surrounding (excluding yourself, the status creature, and allies). This effect will last 1 turn. Anyone else caught in the 5ft radius must make an 8+str+proficiency bonus dex save or take full damage on a failed save or half on a succeeded.

At level 11 this damage is increased by 2d6

While a creature is under this effect, you can teleport up to 60ft to space within 5ft of the creature that is not occupied.

Touch of Corruption

10th-level Path of the Oni feature

With the touch of your hand at your will, you can rot or rust items. When using it on a target creature they must make a dc 8+con+proficiency bonus con save or be poisoned for 1 minute. You are also immune to poison and your own corruption.

You can also speak Abyssal, or another language if Abyssal is already known.

Discord of Izanami

14th-level Path of the Oni feature

As an action, you breathe out a 15ft cloud 10ft away from you that affects all creatures inside. Creatures caught in this cloud must make an Intelligence saving throw. A creature automatically succeeds if it is immune to being frightened. On a failed save, the target loses the ability to distinguish friend from foe, regarding all creatures it can see as enemies until the spell ends. Each time the target takes damage, it can repeat the saving throw, ending the effect on itself on a success.

Whenever the affected creature chooses another creature as a target, it must choose the target at random from among the creatures it can see within the range of the attack, spell, or other ability it’s using. If an enemy provokes an opportunity attack from the affected creature, the creature must make that attack if it is able to.