Vest of Fiery Pain (3.5e Equipment)
From D&D Wiki
Vest of Fiery Pain: This vest looks exactly like a Major Vest of Fiery Healing but deals 1d6 points of damage every round it is worn. The pain from the fire is so intense that it takes either a successful Concentration check or Fortitude save (both are at DC 20) to remove the Vest of Fiery pain.
CL <!-Caster level for creation-->;