Vortex of Teeth

Evocation [Force]
Manifests as a swirling, spiraling storm of magically created incorporeal piranha that swim through the surrounding region. Unfortunately for creatures in the area of effect, the ravenous teeth of the magic piranha solidify upon contact with flesh.
Range: Medium (100 ft. + 10 ft/level)
Drd 4, Sor 4, Wiz 4

From: Web
Spell Compendium