Underworld dragons embody the pressure between tectonic plates, the heat behind geysers, and flash fires that ignite when the conditions are just right. Natural alchemists, these dragons innately understand reagents and catalysts. While some research the effects of magic on material reactions, the majority of underworld dragons concentrate on building their hoards. They scour the world for carved gemstones and artifacts of precious minerals, both of which they see as distilled essence of earth's bounty.