Your creature type is undead as well as your original race.

You are brought back to life with the following changes: Your body gives the faint odor of rotting flesh. You do not require air, food or drink.

Parasitic Compulsion. You require a daily intake of iron rich blood from a living humanoid or beast, blood of humanoids is best, other beasts will do.

Restorative Fortitude. You gain +1 to your Constitution score to a maximum of 20. You gain resistance to necrotic damage and immunity from poison damage and the poisoned condition.

Undead Endurance. If damage reduces you to 0 hit points, you 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, you drop to 1 hit point instead.

Corporal Deterioration. When you go a day without consuming fresh blood your flesh body deteriorates in the following stages: 1 Day Your skin turns a light shade of green; 2 Days Your skin turns a darker, deeper shade of green; 3 Days Your face becomes gaunt and your skin wrinkles; 4 Days Your skin slips and sags on your bones creating hanging eye sockets; 5 Days Your flesh dries and clings to your skeleton, showing the shape of all the bones underneath, the only remaining hair you have is thin. 6 Days Your flesh falls off your bones until you are an animated skeleton with vocal cords.