Undead Variant

You are resistant to poison damage and immune to necrotic damage. You do not need to breathe, eat, or sleep (though long and short rests are still required as normal and you can still be put to sleep through magical means). You have a disadvantage on Constitution and Charisma saving throws. Your creature type is Undead. Conditions that would normally not affect Undead creatures have a normal effect on you except in regards to healing. Healing conditions that would normally ignore Undead targeted at you only heal half the intended hit points.