Create Wave

You create a 5ft by 5ft cube of water that crashes out in a single direction.  Target must make a Dex saving throw or be pushed 10 feet by the wave.  The water will magically disappear 5 minutes after casted.  

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, you create a 10ft by 10ft cube.  Target must make a Dex saving throw or be pushed 20 feet by the wave and take 1d6 bludgeoning damage.  The size of the cube increases by 2.5 feet and the damage by 1d6, for each slot level above 1st.