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From Terraria Wiki
The Obsidian Skin Potion is a buff potion which grants the Obsidian Skin buff when consumed. The buff makes the player immune to Lava, Hellstone, and Meteorite for 4 minutes, as well as providing the ability to breathe in lava. Obsidian Skin Potions can be crafted, dropped by pots in the Underworld, or found in Shadow Chests and Crates. Additionally, it makes you invulnerable to the On Fire! debuff.
- 220.127.116.11: Sprite updated.
- 1.0.6: Duration increased from 3 to 4 minutes.
- 1.0.5: Introduced.