Drown, Mass(Spell Compendium, p. 74)
Conjuration (Creation) [Water]
Level: Druid 9,
Components: V, S,
Casting Time: 1 standard action
Range: Close (25 ft. + 5 ft./2 levels)
Target: One or more creatures, no two of which are more than 30 ft. apart.
Saving Throw: Fortitude negates
Spell Resistance: Yes
You speak the words and make the sign of the wave, indicating each of your foes in turn. They sputter and pitch forward, water gushing from their mouths and nostrils
This spell functions like drown, except that it affects multiple creatures.