Spells:

You gain the Prestidigitation cantrip. Starting at 3rd level, you can cast the invisibility spell with this trait, without requiring a material component. Starting at 7th level, you can cast the greater invisibility spell with this trait, without requiring a material component, however you can only cast it with a range of touch.

You can cast those spells a number of times equal to your proficiency bonus. Once you run out of charges for any spells granted by this trait, you can’t cast that spell with it again until you finish a long rest. You can also cast any of those spells using any spell slots you have of the appropriate level.

Constitution is your spellcasting ability for these spells when you cast them with this trait.

Incorporeality:

As an action you can become incorporeal for 1d4 minutes, this action counts as concentration. Doing this, you can move through other creatures and objects as if they were difficult terrain. You take (1d10) force damage if you end your turn inside an object. Your elemental resistance becomes an immunity. You can also deactivate this any time (no action required). Deduct the time you are incorporeal from the abilities max duration. After your max duration of the abilities use, you can no longer use the ability until you complete a long rest. 

im serious

Half-Ghosts don't visually age as they look roughly the same age their spiritual powers manifested, however they mature at about the same rate as their original race.

Ghosts can come in many sizes depending on who they were originally. Your size can be Large, Medium, Small, or Tiny.

Your base walking speed is 30 feet. Additionally, you gain 15 ft of flying speed.

You have apparitional ancestry. Choose one type of ghost from the Apparitional Ancestry table. Your aura weapon and damage resistance are determined by the ghost type, as shown in the table.

Apparitional  Ancestry

You can use your action to release destructive energy. When you use your elemental aura, roll to hit based on your con + your proficiency bonus. Throw a mote of energy causing an enemy to take 2d6 ([6th] 3d6, [11th] 4d6, [16th] 5d6) if the attack hits. You can use this action a number of times equal to your Con Modifier.

Being an elemental spirit grants you resistance to the damage type associated with your apparitional ancestry.

You can speak, read, and write two languages of your choice.