Your Constitution score increases by 2, and Charisma decreases by 2.

You can't be magically put to sleep.

You learn the Chill Touch and Antilife Shell cantrips due to being undead.

At level 1, the undead of CR 1/4 or lower within 100 ft. that can see or hear you become afraid of you and won't willingly attack you. At level 5, the undead of CR 1/2 will be affected by your aura. At level 10 undead of CR 1 will be affected, at level 15, the undead of CR 2 will be affected. At level 20, any undead of CR 4 or lower will be affected and will unquestionably follow any orders you give them.

When your HP is reduced to 0 you are completely aware of your surroundings but are unable to move or interact with them. When you succeed on a death saving throw you regain 1HP and are considered prone.

 If you kill any creature your size or larger, you gain a number of temporary hit points equal to your Constitution modifier. (Minimum of 1) Your temporary hit points last until you lose them in combat or take a long rest.

You can speak, read and write Common, Infernal, Abyssal, and the one languages that were known by the skeletons that your body is made of.

Thanks to you being undead, you have superior vision in dark and dim conditions. You can see in dim light within 60 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 are immune to disease and treat exhaustion as if it was non-exsistent. Instead of sleeping, you enter an inactive state for 4 hours each day. you do not dream in this state; you are fully aware of your surroundings and notice approaching enemies and other events as normal.

• You are immune to poison damage.
• You are immune to disease.
• You don’t need to sleep, and magic can’t put you to sleep.
• You don’t need to eat, drink, or breathe.

Your unnatural features and disturbing visage granted by the necromancy that made you gain proficiency in the Intimidation skill.

You have advantage on death saving throws.