Hot Stuff

Hot Stuff is a reforge stone that applies the Heated reforge bonus to mining tools. It can be obtained from Crafting or Forging, both requiring (4). The reforge does not give any base stats. The reforge bonus grants for every 2 blocks down you are on the Y-level.

Trivia
Because the Crystal Hollows is below the Dwarven Mines, which itself is below the Deep Caverns, the Heated reforge bonus accounts for your height beginning at the Deep Caverns when in either the Crystal Hollows or the Dwarven Mines. This means that if you want to use this reforge to the best of its abilities, it is best used firstly in the Crystal Hollows, secondly in the Dwarven Mines, and thirdly in the deeper levels of the Deep Caverns.

There used to be a way to craft the reforge stone using 96 Enchanted Hard Stone and an Enchanted Lava Bucket but this was removed sometime in July 2021 in a shadow patch.