This spell was originally created for Sylphs. Characters or creatures of other races can learn to cast it with GM permission.
This spell functions like gaseous form, except the target’s vaporous body is dangerous to creatures that touch it. A creature can make a Fortitude save (DC 14 + your Intelligence modifier) on its turn to resist the vapors. When you cast this spell, you select one of the following options.
Poisonous cloud: The target’s body is deadly poison, dealing 1d2 points of Constitution damage to creatures that fail their saves (Fortitude halves). This form of the spell requires a material component.