Bottomless Lava Bucket

The Bottomless Lava Bucket is an item that functions similarly to the standard Lava Bucket, except that it never runs out of Lava and can place it slightly faster than a regular lava bucket (especially when moving the cursor around while filling). It is obtained as a rare drop from fishing in lava.

It is the lava counterpart of the Bottomless Water Bucket.

Tips
this item can be used to make underground biome farms, as enemies can’t spawn on or in lava the bucket can be used to quickly fill any cavities around the farm quickly, and unlike sand using the bottomless lava bucket will retain the ability to get the respective biome key that the farm was built in
 * This item can be used to create infinite Obsidian when paired with the Bottomless Water Bucket.
 * This can be used to attain infinite money, albeit slowly, by crafting and selling Obsidian Skulls.
 * It can be used in mid-air to create a platform to step on with Lava Waders, resetting any extra jumps.
 * When combined with the Superheated Blood (Lava Shark) mount, and with some practice, this item can be used to grant fast infinite flight in pre-Hardmode by pouring it over oneself repeatedly. This will however quickly flood the area with lava.
 * This technique can be used to avoid the Wall of Flesh when it reaches a very high speed.

Trivia

 * Even though it can be obtained pre-Hardmode, it has the same Lime rarity as the Bottomless Water Bucket.