Similar to more common spell, poison cloud, noxious fumes can be very annoying
and dangerous nuisance. The most powerful magicians of the art of toxicology
have found a way to produce gas like substance containing venomous
constituents. With intense body and mind consentration one can channel noxious
fumes through his glands and skin. Since fumes tend to spread out fast in the
air it is very important that the caster masters his spell well. Knowledge of
toxicology helps focusing the gas into cloud like formation and thus avoiding
the unwanted targets.