The Blade of genocide

The Blade of genocide is a corrupted fighter with dark heart that has been overtaken with lust for death. Their power leaks out of them manifesting as a inky thick black substance that they can control and create.  

Dark slash

Dark power fills into your blade and is sent towards a creature up to 15 ft away. The dark slash acts as a ranged weapon attack dealing 2d6 necrotic damage to the target. You can use dark slash 3 times per long rest.

Aura of malice

you gain proficiency with intimidation and persuasion checks due to your discomforting aura

Inky respite

When an attack is made against you, you can use your reaction to not take damage however it does not stop spell damage. You quickly turn the assaulted area into a black inky substance that allows the attack to pass through. You can use this ability 2 times per long rest.

Hateful infliction

At 15th level you can channel your hate into your weapon causing those hit with it to be overcome with dark and hateful emotions. When you make a success full attack against a creature you can force the creature to be overcome by intense hate. The afflicted creature has to make a wisdom save against your charisma score, if the creature fails the save they will attack the closest creature be it friend or foe with all their might. 

You can use this ability 3 times per long rest

Armaments of genocide

You fully embrace your darkness and are consumed by your inky power giving you an inky exterior with your eyes and mouth taking on a simple form of one solid varying colour. Your inky exterior gives the ability to create an inky version any non-magical simple or martial weapons and any type of non-magical ammunition that only you can use. All your weapons and ammunition count as magical and can be created as a bonus action. Your transformation lasts for 1 minute and after it ends you gain 3 levels of exhaustion. You can use this ability once per day and regain use after dawn.