From Discworld MUD Wiki
The demon is your worst nightmare incarnate. It appears to consist of a fast moving cloud of dust, but you can distinguish a very creditable set of claws and fangs. It is in good shape. It is standing.
This kind of demon is currently only found in one place: Ankh-Morpork.
Possible spoiler: Dwarf mansion.
- Except for demon body parts.
- Air demons have moderate fighting abilities.
- They do normal physical damage.
- They auto-attack!