Exclusive to: Shipwrecked.
The Obsidian Armor is an armor from the Shipwrecked DLC. It requires 1 Log Suit, 5 Obsidian and 1 Dragoon Heart to craft. Like all items in the Volcanic Tab, it cannot be prototyped and the player must always be wearing a Brain of Thought or must be near an Obsidian Workbench to craft it again.
The armor acts similarly to the Scalemail from the Reign of Giants DLC. It grants fire immunity to the wearer and will ignite attackers, however unlike Scalemail, it does not restore sanity while worn. It has 1350 durability and absorbs 70% of physical damage.