The Mark of Death*

You have gained the Mark of Death. Your veins run black with dark twisted magic that fuels your abilities. Make the following changes to your character.

Ability Score Increase
Your Intelligence score increases by 2, and your Charisma score by 1.

Poison Breath
As an action you can exhale poisonous gas in a 30ft cone. Each creature in that area must make a saving throw against your spell save DC or take 4d8 poison damage and be poisoned for 1 round. While poisoned in this way, the creature cannot regain hit points. On a successful save, the creature takes half as much damage and isn’t poisoned. You can use this feature once per long rest.

Master of Death
Undead creatures are indifferent toward you and will not attack you unless you threaten or harm them. You can cast the Diabolism* spell with this trait. Additionally, you can cast the Animate Dead spell with your mark. Once you cast this spell with this trait, you can’t cast that spell with it again until you finish a long rest. Intelligence is your spell casting ability for this spell.

Spells of the Mark
If you have the Spellcasting or the Pact Magic class feature, the spells on the Mark of Death Spells table are added to the spell list of your spellcasting class.
Mark of Death Spells