Evocation [Sonic]
Level: Sorcerer 5, Wizard 5
Components: V, S, F
Casting Time: 1 standard action
Range: 30 ft.
Area: Cone-shaped burst
Duration: Concentration, up to 1 round/level
Saving Throw: Reflex half
Spell Resistance: Yes
Your final words of the spell become a deep, rumbling hum, as loud as the din of a battlefield, and they blast outward from you in a cone.
You create a cone of powerful sound. If used to attack, the cone deals 1d6 points of sonic damage per two levels (maximum 10d6) each round a creature is within the area; a successful Reflex save reduces this damage by half. Targets within the area of a silence spell are immune.
Focus: A hollow cone of brass and gold worth 50 gp.
Source: Spell Compendium, page 195.