The Doomsday Stone is a living stone that gives warnings of apocalyptic events and it is one of known objects alongside the Doomsday Door in the Ghostbusters universe. It made its appearance in The Real Ghostbusters cartoon series.
This strange artifact is a stone that has Sumerian writing on it. Unlike a normal stone, this is capable of speaking. It tells visitors about the Doomsday Door and the end of the world. It reveals doomsday will spread until it engulfs the whole world.
Powers and Abilities
Other than formally warning interlopers of doomsday through speech, the Doomsday Stone is anchored to its position.