The Sardian Mountains were home to many dwarves. It was these dwarves, along with some goblin tribes, that invented a substance like gunpowder, an otherwise rarely seen invention on Dominaria. The Brothers soon made much use of this "goblin powder" in their war-time technologies. Near the end of the war, Urza had the dwarves purged after the creation of his Colossus, because they had been caught sending provisions to Mishra. Buried under a thin layer of dirt, the Colossus was known for centuries as Mount Sardia.