Armor of Death

Armor of Death:

Medium Armor
15 ac + dex (maximum +2)
When the wearer hits 0 hp as a reaction they can heal again for 2d4 + spell casting modifier. However the armor can only do this once per long rest.
It does emit a aura of death and it unease most

Made from tough but flexible leather, studded leather is reinforced with close-set rivets or spikes.