Pyrovile
The Pyroviles were a race of rock-based humanoids native to the planet Pyrovillia.
Biology
Pyroviles were made of rock with a magma interior. They were able to shoot flames out their mouths which turned humans to ash in seconds. They could be killed by large quantities of cold water.
When they were disintegrated, if a human breathed in the ash it would slowly transform them into Pyroviles. Pyroviles were also able to enhance the latent psychic powers of humans that they possessed.
Appearances
The Fires of Pompeii (TV)
Lights Out (Prose)