The ring of fire that appears when using the Inferno Potion.
The ring of fire at night.
The 狱火药水 is a 增益药水 that grants the 狱火 增益 when consumed, which casts a ring of fire that inflicts low damage and the 着火了！ 减益 on some enemies on contact, as well as giving off light. Critters and other passive NPCs are spared. It can be crafted or found in Shadow Chests. The buff lasts for 4 minutes.
- Crafting this potion requires a 熔线钓钩, as its two fish ingredients can only be caught in 熔岩.
- Enemies that are immune to 着火了！ are also immune to damage from the Inferno.
- While the ring deals minimal damage to most Hardmode enemies, this potion is extremely useful when fighting 猪龙鱼公爵 because his 爆炸泡泡s will be destroyed before they can damage the player. It is also useful in the Wall Of Flesh for keeping the hungry at bay, or for fighting Plantera, to kill spores and keep the hooks away from you.
- In the 3DS version, there is an exploit involving this item, where pausing with the buff active will keep the hitboxes active. This is immensely helpful against mobile Hardmode bosses, such as Duke Fishron.