Dungeons & Dragons 5e Classes: The Endless Grave

For the purpose of interacting with spells, class abilities and animals you are considered Undead even though you are still alive. You gain the ability Undead Fortitude: If damage reduces you to 0 hit points, it must make a Constitution saving throw with a DC of 5 + the damage taken, unless the damage is radiant or from a critical hit. On a success, the zombie drops to 1 hit point instead. Once you use this feature, you can’t use it again until you finish a short or long rest.

Starting at 6th level, you can cast the Animate Dead spell as a ritual. Once you use this feature, you can’t use it again until you finish a long rest.

Beginning at 10th level, your patron’s energy has begun to immortalize your body. When necrotic energy is used to harm you, it will instead heal you and this feature can turn that necrotic damage into temporary hit points if you are already at maximum hit points. These temporary hit points cannot exceed a number equal to double your charisma modifier.

Starting at 14th level, as an action you can release a wave of necrotic energy in every direction with a range of 60 feet. Every corpse in this area is instantly animated under the effects of the Animate Dead spell. If the combined CR rating (adding the total CR rating of each corpse) of these corpses is equal to 10 or less, then these corpses also act as if under the effects of a Haste Spell. The effects of Impure World Resurrection last for 1 minute and when it ends the animated corpses turn to dust and you gain a level of exhaustion. Once you use this feature, you can’t use it again until you finish a long rest.