Grim seeker

Devils born from the abyss to gather and adsorb the flames of nightmares in worlds broken and decaying, and where tragedy lies, they will be...

Flame of Tragedy

 you have access to feel the fragments of the nightmare from a mile away, when you adsorb the fragment you can see images of the tragedy that happened in the location.

The art in the nightmare

Starting at level 3, In your travels you have learned to manifest in and better control the power of the nightmare giving you new and beautiful ways to do your deeds.

cursed Nightmare Fire: you are able to control the nightmare fire in your favor Whenever you make the attack action you can expend up to three Ki points to deal fire or psychic damage. The number of damage dice is equal to the dumber of Ki points that you spent. The damage dice is your martial arts die.

hose eyes that plunge me into the abyssYou know the charm person spell. The DC is your Ki save DC. You can cast this spell once without expending a spell slot. You must take a long rest to regain this feature

Soul Eater

whenever you reduce a creature to 0 hit points you regain one expended Ki point.If you choose not to regain an expended Ki point then you instead heal 10 HP

Audience of the souls

Audience of the souls: as an action you expend 2 Ki points to create a 30 ft circle of difficult terrain at any point within 60 ft of you that you can see. Every creature within this radius takes 1d6 necrotic damage for every 5 ft that they move. Additionally every flying creature that ends their turn 30 ft above this area must make a dexterity saving throw or become grounded and can only use their movement speed to walk for the duration of this ability.

Nightmare king

As a bonus action you expend 4 Ki points to go into your “nightmare king” state. The duration is 10 minutes or until you are below half your maximum HP

While in the Nightmare King state, you gain the following benefits and features

You gain advantage on wisdom and dexterity saving throws

Whenever you use Ki points while in this state you deal 2d6 extra damage of the same damage type.

Cloak spikes: Whenever you use deflect attack you can expend 1 Ki point to use redirect attack without needing the damage to be reduced to 0. This damage will count as magical for the purpose of overcoming resistances and immunities

Hesitant deflection: when you use deflect attack and the damage isn’t reduced to 0 then you can expend 1 Ki point to double the number rolled on deflect attack.