Immortal: Immortal human endowed with superhuman abilities, which include all human aspects to supernatural levels. can use magic and absorb the power of those he kills, in addition to the power that constantly grows.

dhampir: it would be something like D

half ghost: would be a combination of Danny Phantom with Spawn

divine half alien: descended from an extremely unique ascended divine alien (or alien race)

I feel the most creative route would be the alien-demigod hybrid but i the half ghost with Spawn like traits sounds awesome

@Mortal Reminder616 my intention with the half ghost was to show the power of the human soul as something to be feared, something powerful, the human spirit with great power.

It would even be an explanation of why demons and deities depend so much on humans