The air now had a trace of sulfur smell.
The environment in the Underdark was bad. In some places, there were even underground volcanoes that could erupt at any time. This was especially true when the faint smell of sulfur was more obvious. Grey dwarves were also not afraid of death; they liked to build their cities near the volcano, or directly dig through the ground to bring out the underground magma. In terms of forging technology, the technology of the grey dwarfs was far superior to that of the surface dwarfs; often, there would be +3, +4 blacksmiths down here.
However, the materials used in the Underdark were useless when these weapons were brought to the surface.
