Your Wisdom score increases by 1 and one ability score of your choice increases by 1

It is not known when Ghost's truly mature, Their life span is persumed to last indefinite.

Ghosts are weird creatures, not particularly non to even have much of a will or complete selfawarness, yet they are fully capable of making decisions. It is persumed that most of them tend to be neutral.

Ghosts are around 3.5 feet tall and average about 45 pounds. Your size is Small.

Your base walking speed is 25 feet.

Accustomed to life underground, you have superior vision in dark and dim conditions. You can see in dim light within 120 feet of you as if it were bright light, and in darkness as if it were dim light. You can’t discern color in darkness, only shades of gray.

You have immunity to being charmed and frightened.

You can understand, read, and write Common, Celestial, Sylvan and Undercommon yet can't speak.

As a Ghost grows in experience and expertise it start's to molt, shedding of it's old shell and adopting a greater form representing it's inner growth. When you reach 5th level your walking speed increases by 5, your size increases by one and either your  Constitouton or Strength score increases by 1. The same happens again at 10th level but you choose a feat instead of an ability score improvement.

Your very birth as a Ghost was an accursed event brought upon by holy life tainted with an ancient substance, when you recieve damage small drops of ink like substance seem to fall of your body and while exhausted black smell less fumes arise from you.

Additonally you have resistance to necrotic damage and have advantage on death saving throws.

 A dark process which was used for your creation allows you too cheat death itself but for a terrible cost. Should you die, you instead spawn a Shade and get revived with half your hit points and equipment rounded up. Addiotonaly your hit point maximum is reduced to 75% of it's current maximum. You also have disadvantage on Constitution saving throws.

These changes last until your Shade has been defeated.

Shade

Small aberration, chaotic evil

Armor Class 10

Hit Points 23 (5d8 + 2)

Speed 0 ft., fly 50 ft.

STR

10 (+0)

DEX

10 (+0)

CON

10 (+0)

INT

1 (-5)

WIS

22 (+6)

CHA

6 (-2)

Damage Resistances Acid, Cold, Fire, Lightning, Thunder; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks

Damage Immunities Necrotic, Poison

Condition Immunities Blinded, Deafened, Exhaustion, Frightened, Grappled, Invisible, Paralyzed, Petrified, Poisoned, Prone, Unconscious

Senses Darkvision 100ft., Truesight 30ft., Passive Perception 15

Languages Deep Speech Can't speak it

Challenge 1 (200 XP)

Incorporeal Movement. The specter can move through other creatures and objects as if they were difficult terrain. It takes 3 (1d6) force damage if it ends its turn inside an object.

Sunlight Sensitivity. While in sunlight, the specter has disadvantage on attack rolls, as well as on Wisdom (Perception) checks that rely on sight.

Simultanious Growth. The Shade's size , Constitution, Strength and Armor class are equal to your own and it's flying speed is equal to yours *2. These Change in tandum with your Molting feature. Additionally it get's to add your proficiency bonus to all rolls it makes.

Actions

Life Drain. Melee Spell Attack: +4 to hit, reach 5 ft., one creature. Hit: 10 (3d6) necrotic damage. The target must succeed on a DC 10 Constitution saving throw or its hit point maximum is reduced by an amount equal to the damage taken. This reduction lasts until the creature finishes a long rest. The target dies if this effect reduces its hit point maximum to 0.

Void Slash. Melee Weapon Attack: +5 to hit., one creature. Hit: 8 (2d4) piercing damage plus 2 (1d4) necrotic damage.