Angels of death don't age and live until they are killed in battle.

Angels of death don't have a set alignment, but they are usually not lawful.

Angels of death are almost always between 6 feet and 8 feet and rarely weigh more than 130 pounds. Your size is Medium.

Your base walking speed is 30 feet.

You can speak, read, and write Common, Celestial, and have Telepathic communication within 500ft to all beings, other than Constructs.

Due to your Angelic origins, you have wings on your back but your wings have become emaciated, and decayed. You have the ability to conceal your wings at any time.

Starting at second level, you can use some loose quills on your wings as a ranged attack, up to 30 feet away. You deal 3d4 of Piercing damage. You can only use this ability twice per short or long rest.

At higher levels, the damage you deal is increased. 

Due to your undead soul, you do not need to eat, sleep, breathe or drink. Instead, you must enter a semi-conscious trance for 4 hours a day. Remaining in this trance for 4 hours a day gives you the same benefit 8 hours of sleep for a normal human would give

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 colour in darkness, only shades of grey. You also have Truesight in a range of 10 feet.

Because your body has already died, and it is of Angelic origins, it is a bit sturdier against toxins that affect the living. You are resistant to poison damage. Since you are also already dead, you are immune to necrotic damage.

You blend in with shadows exceptionally well. You are proficient in the Stealth skill.

Your Dexterity score increases by 2, and your Charisma score increases by 1.