Great shout

Great shout was an arcane evocation spell that produced a tremendous sonic force similar to a horn of blasting from the mouth of the caster.

Effects
There were at least two distinct versions of this spell. The original, presumably invented by a wizard named Daimos, was dangerous to the caster, requiring some of his or her own vitality in the casting, with possibly fatal results. It also required an item that radiated magic as a material component. A later version was much less taxing, did more damage, had a bigger area of effect, and only needed an arcane focus (which was not consumed in the casting).

Great shout had two areas of effect, one inside the other. The primary area of devastation was a narrow corridor emanating straight out from the caster. The secondary region of sonic punishment also emanated from the caster in the same direction as the primary but was in the shape of a widening cone that surrounded the primary on both sides.