Magical and non-magical gases found in the Realms.
“Sleeping gas was a tool used by some rogues to deal with pesky guards. Sleeping gas was stored...Sleeping gas
“Inferno vapor is an explosive gas that can build up in bubbling pools in swamps. At regular...Inferno vapor
“Hsskala ("nearkill" in the Common tongue) was a positoxin that would render an undead creature...Hsskala