An anger filled Monk.

At times there are monks who master their emotion not through intense suppression but by hardening their rage and manipulating it through their ki. These monks can burn through armies and even destroy the soul of their foes.

Raging Blast

Starting at 3rd level, as an action, you can use 1 ki point to unleash a ball of pure ki at an enemy. This special attack is a ranged spell attack with a range of 30 feet. You are proficient with it, and you add your Dexterity modifier to its attack and damage rolls. This deals 1d10 necrotic damage per ki point spent.

Hurricane Surge

Starting at 6th level, you learn to harness the power of the foot to launch yourself at an enemy. By spending 2 Ki points, you can fly 30 feet towards an enemy and make an unarmed strike with disadvantage. If it hits it deals 3 times the normal damage.

Final Strike

At level 11 the Raging Demon can spend 3 Ki points to launch themselves at an enemy 15 feet near them. The enemy must make a Constitution saving throw, dealing 8d8 Necrotic damage to them on a failed save, or half as much on a successful one. You can spend an additional Ki point to increase the damage by 1d8 per Ki point spent. If the damage done is over half their current HP the enemy dies. If they still fail they are stunned until the end of your next turn.

Oni Power

Starting at 17th level, the Raging Demon can unleash their anger filled energy into their body as a bonus action. For five minutes they assume a semi-demon form. In that form their unarmed strikes deal an extra 2d10 Force damage and their jump height is multiplied by 5. Their speed is doubled, and they gain immunity to necrotic and radiant damage for the duration.

Additionally, your Dexterity score is increased by 6 for the duration. You can use this ability once per long rest.