Wave

You create a 20 feet high wave of water that starts at your location and moves 30 feet per round away from you in a direction of your choosing. The wave is up to 5 feet long for each wizard level you possess.

Creatures struck by the wave might be knocked down and pushed away. On a successful caster level check each creature is knocked prone and is carried with the wave
(+5 bonus if the creatures are next to you). Nonmagical fires hit by the wave are automatically extinguished.

You can use this ab