Lamp of Lava
Wondrous Item – Very Rare
We know what you’re thinking, but don’t drink it! The Lamp of Lava casts bright light in a 30-foot radius and dim light for an additional 30 feet. While this lamp is in your possession, you can cast Hallucinatory Terrain once per long rest and make it seem as though an area is filled with lava.
As an action, the Lamp of Lava can be intentionally smashed on the ground up to 20 feet away, destroying the item and creating a 20-foot diameter circle of burning lava, centered on the point where it was smashed. The lava deals 10d10 fire damage to any creature that moves through it, and it cools after 1d4 hours. Rubbing the Lamp of Lava will not bring forth any genies, it will just burn your hand.