Base Class: Paladin
abandon the oath of light and become one who uses their own negative side to help the weak. You use shadows and hatred to fight the evil in the world. The oath is to yourself and if let go be consumed by your hatred.
Shadowbringer
Create a shadow copy of yourself that helps you for one minute. One done can't do so again till a long rest. This action takes a bonus action.
Level 3: Living Dead
You use Channel Divinity to use Living Dead. Once under the effect you can't die. If you reach 0hp your next two attack will restore hp for the amount of damage you did to your own opponents. It last for 1 minute.
Dark Knight Spells
At level 3 you gain new spells that are your to use. Eldritch Blast, Darkness, Necortic Smite
Delirium
Your Aura of Protection now deals damage to an enemy that starts their turn in the aura. It does 2d6 force damage.
Level 15: Salt and Darkness
You cast a 40ft sphere within your eyesight. The area becomes difficult terrain and everyone in it is in pure darkness. You can see in this darkness since you know gain devil sight of 120ft. Also while obscured by darkness you have advantage on all attack rolls