Divided Soul

Your Magical Power comes from an arcane ritual performed by several cults and secretive organizations, they take your soul from your body and infuse it with the energy of a Wraith.
This process causes memory loss in whomever it is performed on.

Elemental Bond

Due to the Wraith inside of your Soul you have a natural resistance against a specific type of element.
You may choose one of the following Elements to be resistant against:
Fire (Fire), Ice/Water (Cold), Air (Lightning), Light (Radiant), Darkness (necrotic)

If you encounter an environmental hazard of that element you automatically succeed in every skill check related to it.

Natural Friendship

When encountering an Elemental they will act neutral towards you and not attack before you or a party member does.

Elemental Influence

Upon casting a Spell that uses your chosen Element as a damage type, you deal an additional dice of whatever dice it uses in damage.

Physical Similarities

At 14th level, you start to gain slight similarities with a wraith.

You can choose one of the following effects:

1. Your Body becomes slightly transparent. You may bypass somatic components.
2. You emit a slight mist. You have advantage on stealth and sleight of hand checks.
3. You hover slightly above the ground. Difficult terrain doesn't affect you anymore.

Erupting Energy

At 18th level, you and the wraith inside of you have become fully attuned to one another.

You can use your Action to cause the Wraith inside you to erupt into a wave of your chosen element. This deals 10d12 of your chosen damage type in a 15 ft radius. You may use this once per Long rest.