Quote Originally Posted by Emanick View Post
While phosgene, mustard gas and sarin gas are even worse than chlorine gas, I very much doubt that any of them exist in elemental form in the OOTSverse.
In the real world what makes poison gas a consensus evil weapon isn't that it kills people, pretty much all military weapons kill people, it is that it permanently disables the survivors WITHOUT necessarily stopping them from fighting and the wind could blow it back over your own position (and even if it doesn't, for offensive use you have your own guys advancing into the cloud).

So you permanently cripple large numbers of soldiers from both sides, without necessarily taking them out of the current combat, and it's not even particularly good at winning the battle.

If gas were a war-winner or really useful, it would never have been banned or the ban would never have held. After WWI the consensus was, "It's horrible, and it doesn't even work."

Chlorine gas is in many respects one of the most evil forms of gas warfare, not because it's more effective, but because it's even less effective than the others.