Shroud of the Unburied (Patreon)

Wondrous item, rare

This canvas burial shroud is permanently stained red and is worn like a cloak. When you're reduced to 0 hit points while wearing the shroud but not killed outright, it magically wraps around you to protect your unconscious body. You immediately gain 25 temporary hit points, which remain for 10 minutes or until you regain any hit points, at which point the shroud unwraps from you. While you have these temporary hit points, you can neither gain nor suffer any death saving throw successes or failures, and whenever a creature within 10 feet of you deals damage to you, it immediately takes 2d12 necrotic damage.

Once the shroud has granted temporary hit points in this way, it can't do so again until 3 days have passed. In the meantime, you must make a DC 5 Constitution saving throw whenever you finish a long rest. On a failed save, you gain only the benefits of a short rest, as you're plagued by horrific visions of long-dead spirits.

Even if you bring me down...

the next blood to spill is yours.