Brimstone is an artificial creation also dubbed the "Engine of Destruction", sent by Darkseid of Apokolips to Earth. He first appeared in the DC Comics miniseries Legends in 1986. Brimstone was actually a diversion for the heroes of Earth so that Darkseid's agent, Glorious Godfrey, could seize political power and gain persuasion to turn the people of Earth against the planet's superheroes.
To dream of brimstone, foretells that discreditable dealings will lose you many friends. if you fail to rectify the mistakes you are making. To see fires of brimstone, denotes you will be threatened with loss by contagion in your vicinity.