Sonic Wave

Evocation [Sonic]
A sonic wave is a wave of sonic energy that erupts from your fingertips and travels in a 15-foot-wide wave in one direction to the extent of the spell's range. The wave deals 1d6 points of sonic damage per caster level (maximum 15d6).
Range: Close (25 ft. + 5 ft./2 levels)
Sor 5, Wiz 5

From: Dragon #304