When a shout spell is cast, the wizard gives himself tremendous vocal powers. The caster can emit an ear-splitting noise that has a principal effect in a cone shape radiating from his mouth to a point 30 feet away. Any creature within this area is deafened for 2d6 rounds and suffers 2d6 points of damage.
A successful saving throw vs. spell negates the deafness and reduces the damage by half. Any exposed brittle or crystal substance subject to sonic vibrations is shattered by a shout, while those brittle objects in the possession of a creature receive the creature's saving throw.
Deafened creatures suffer a -1 penalty to surprise rolls, and those that cast spells with verbal components are 20% likely to miscast them.
The shout spell cannot penetrate the 2nd-level clerical spell, silence, 10' radius. This spell can be employed but once per day, for otherwise the caster might permanently deafen himself.
The material components for this spell are a drop of honey, a drop of citric acid, and a small cone made from a bull or ram horn.