While you wear this rusted iron choker, you are treated as if you don't have blood by spells and magical effects, and you have advantage on saving throws against bleeding and against poison or disease caused by effects that deal bludgeoning, piercing, or slashing damage. Also, when creatures regain hit points based on necrotic damage they have dealt to you, you have resistance to that necrotic damage, and the healing is calculated as if you had taken no necrotic damage at all.

Notes: Advantage: Saving Throws, Advantage: Saving Throws, Warding, Jewelry