Spectra

Spectra are the souls of damned humans that have been twisted due to eternal torture in Hell leaving them withered husks of themselves devoid of all humanity. While classified as a demon, Spectra are in fact ghosts.

Characteristics
Spectra are the souls of damned humans who have been dragged to Hell either by being so morally reprehensible that no afterlife realm would accept them or they made a deal with a Faustian Demon.

Like other ghosts, Spectra are incorporeal beings who normally cannot interact with the Physical World. Powerful Spectra are capable of doing so but most Spectr must possess a vessel in order to do so. They appear as long funnels of black smoke similar to a demon's astral/spirit form in which they enter their victims and take over their bodies.

Spirit Form

 * Possession: Most Spectra must possess a vessel in order to interact with the Physical World.
 * Telekinesis: Powerful Spectra are capable of interacting with physical beings with telekinesis.
 * Intangibility: Spectra cannot be interacted with by physical means but this goes both ways as Spectra cannot interact with physical beings either.
 * Flight: Spectra are capable of flight in this form.
 * Teleportation: Spectra can teleport.
 * Electromagnetic Interference: A spectra's presence interferes with technology.

While possessing a vessel

 * Enhanced Strength: Spectra, while possessing a vessel, possess enough strength to be able to break a devil's neck or rip a grown adult human in half.
 * Enhanced Speed: Spectra are shown to be faster than regular humans.
 * Enhanced Durability: Injuries such as a broken neck or a headshot are incapable of killing a Spectra.
 * Telekinesis: Spectra can move matter telekinetically.
 * Thermokinesis: Like other ghosts, spectra can lower the temperature with just their presence.
 * Electromagnetic Interference: A spectra's presence can interfere with technology.

Harming, Trapping, and Banishing

 * Iron: Like other ghosts, Spectra can me temporarily dispelled with iron.
 * Salt: Spectra cannot cross salt lines.
 * Exorcism: Spectra can be banished via an exorcism like all demons.
 * Burning their corpse: Spectra can be banished by burning their bodies.

Killing

 * Higher Level Beings: Spectra can be killed by beings of comparable power or stronger than they are.
 * Enochian Weapons: Spectra can be killed while in a physical body with an Enochian Weapon.
 * Hallowed Ground: Like Devils, Spectra are incapable of entering hallowed ground. They will be destroyed upon stepping foot. However, powerful spectra are capable of doing so.

Trivia

 * Spectra are based on Demons from Supernatural.
 * Spectra is derived from the word "Specter" which means "Ghost".