Steam Billow Weapon

Magical Melee Weapon - Rare Requires Attunement You can use a Bonus Action to cause super heated steam to spew out from the weapon. While active, all creatures within 5ft of you must make a DC 13 Constitution Save at the start of their turn, taking 2d6 fire damage on a failed save, or half on a success. Being underwater doesn't grant resistance against this damage. The steaming lasts until you use a Bonus Action to stop it or until you drop or sheathe the sword. This weapon is crafted from the remains of Teldros the Mighty. When active, scalding steam billows out from crawls and ports in the weapon's surface.