Uncommon Armor (Half Plate), Requires Attunement 

A suit of armour that is covered in regenerating bloated flesh and pus. When worn and attuned to, the pus-filled flesh starts spreading over your body as well, creating a hideous protective layer.   

• Once per short rest when you are reduced to 0 Hit Points while wearing this armor, the flesh on it explodes and showers those around you with poisonous bile and brine. All creatures within 10 feet of you must make a DC 13 Constitution saving throw, taking 7(2d6) Poison damage on a failure and becoming poisoned until the end of their next turn, or only half the damage and not being poisoned on a success.
• Each time you finish a short rest or long rest, your body becomes covered in the layer of flesh, giving you 5 temporary hit points that last until your next short or long rest.