Cloudkill

With this spell, an air scholar floods his current room with a burst of poison gas, damaging those present within it and attempting to poison them, for not more than one hour. This cloud is so noxious, that it is possible for it to kill those breathing it in when it is first called, though this is unlikely.

The cloud of poison gas will linger where it is cast for a while, afflicting those who breathe it in with pain and nausea, making it difficult for them to move or act while so afflicted.

A mistral ward may offer partial protection to this poisonous cloud.