Spirit Walker

Either through years of training or, inherent ability, you have the ability to commune with undead spirits and allow them to peacefully enter your body through possession with no damage to yourself. As well as gaining ghost-like residual abilities that will maximize your ability to fight, regardless of your actual humanoid capabilities.

Spiritual Medium

Through exposure and training you’ve gained the ability to establish a means of communication with all ethereal creatures. When speaking to Wraith, Ghost, Will-O-Wisp, Spectre, or any other undead creature lacking a body, and the undead is friendly to you, you can establish a two-way telepathic link to it, if it is not friendly you must roll a persuasion check (DC 8+the undead’s charisma modifier + the undead’s CR) to establish the link. This link can survive them transitioning into the ethereal plane, but not if they move more than 500 feet away in either plane.

Possession

If there is a ghost within 10 feet of you, which is not hostile to you, you may willingly invite it to possess your body as an action. Upon entering your body it may possess you for up to 1 minute as a bonus action and you can be possessed 2 times per long rest, the number of times you can do this increasing by 1 at levels 5, 10, and 15. Unlike forced possession you retain your autonomy but can now use the spirit's latent power. All of the spirit’s thoughts and actions become synchronized with yours for the one minute you are possessed. Once possessed, you can choose to make your weapon attacks do an additional 1d4 necrotic damage at will. You also gain the use of horrifying visage once per use of this ability (DC of 8+your charisma modifier+your proficiency bonus) and an additional point of armor class due to your new found ability to rapidly contort your body. If you reach 0 hit points the spirit flees your body and severs any telepathic connection you may have had. Any radiant damage that consumes half or more of your total hit points will cause the same effect.

Spiritual Domination

As a bonus action if you are possessed you can allow the ghost to take over your mind for 2 whole rounds. For every 3 points of damage you do on your turn you gain one temporary hit point by consuming the opponents’ life points, and if you aren’t surprised in combat and have attacked on your turn you can etheralize your form at will and give an attacking opponent disadvantage on any non-spell melee weapon attack.

 

Upon using this ability you can not use it again until after a long rest.

Undead Persistence

Before taking damage that will reduce you to 0 hit points you can instead spend a reaction and be sent to the ethereal plane instantly and remain there until the end of the attacker’s turn or until the hazard in the material plane has completely passed through you.

 

After using this ability, you can't use this feature again until you finish a long rest.

 

Ghastly Legion

After the death of a hostile creature you may spend a reaction and make a Charisma check (DC 10+ ½ the creature's CR) to absorb their waning soul and instantly gain all knowledge of that specific creature's thoughts immediately before death. Along with knowledge of their save proficiencies, skills, and ability scores. And you gain one skill proficiency of theirs for one round. If you fail, no uses of this ability are expended.

 

You may use this ability 3 times a day

The Dark Specter's Influence

Your connections to spiritual beings have grown so strong you possess ghost like powers which are only rivaled by spirits themselves. As an action, while being possessed, you can enter the ethereal plane at will and remain there for as long as you choose. While in the ethereal plane you perceive the material plane as ghostly wisps but you can’t interact or touch any creatures or objects within it. As a bonus action you can return to the material plane. If you persist in the ethereal plain for more than 24 hours you will lose your body and become an undead spirit.