Obsidian Skull

Type	AccessoryCrafting material
Defense	1
Tooltip	Grants immunity to fire blocks
Rarity
Sell	54 SC
Research	1 required

The Obsidian Skull is a pre-Hardmode immunity accessory that grants +1 defense and immunity to the Burning debuff inflicted upon contact with Meteorite, Hellstone, Hellstone Bricks, or Ancient Hellstone Bricks. It does not grant immunity to lava or fire-based attacks.

In For the worthy(Desktop, Console and Mobile versions) and Get fixed boi(Desktop, Console and Mobile versions) worlds, the Obsidian Skull also protects against the Burning debuff inflicted by contact with Crispy Honey Blocks.

Crafting

Recipes

Result	Ingredients	Crafting station
Obsidian Skull	Obsidian20	Furnace

Used in

Result	Ingredients	Crafting station
Magma Skull(Desktop, Console and Mobile versions)	Obsidian Skull Lava Charm	Tinkerer's Workshop
Molten Charm(Desktop, Console and Mobile versions)	Lava Charm Obsidian Skull
Obsidian Horseshoe	Lucky Horseshoe Obsidian Skull
Obsidian Shield	Cobalt Shield Obsidian Skull
Obsidian Skull Rose(Desktop, Console and Mobile versions)	Obsidian Skull Obsidian Rose
Obsidian Water Walking Boots	Water Walking Boots Obsidian Skull

Notes

The Obsidian Skull can be worn in a social accessory slot. (Desktop, Console and Mobile versions) When worn, it gives the player a unique appearance.
If the player equips a helmet, it will cancel out the Obsidian Skull's appearance, even if the helmet reveals a little bit of the player's face. This can be remedied by wearing the Familiar Wig, which will override the helmet and make the Obsidian Skull visible, so long as it is toggled to be such in the equipment menu. Another exception can be seen when the player is wearing Bunny Ears while having the Obsidian Skull equipped.
When the player equips an Obsidian Skull (or its upgrades) or benefits from the Obsidian Skin buff, the Dangersense buff will no longer highlight Hellstone, Hellstone Bricks, and Meteorite.

Trivia

It is one of the (Desktop, Console and Mobile versions) six / (Old-gen console and 3DS versions) four components of the Ankh Shield that can be obtained in pre-Hardmode, the others being the Cobalt Shield, Nazar, Bezoar, (Desktop, Console and Mobile versions) Adhesive Bandage, and (Desktop, Console and Mobile versions) Megaphone.