Aqueous Blast

You conjure a poweful stream of water from your hands. Make a malee spell attack. On a hit you deal 1d8 bludgeoning damage to the target and you are pushed back 10 feet in a straight line by the pressure of the water. This is considered forced movement. 

This spell's damage increases by 1d8 when you reach 5th level (2d8), 11th level (3d8), and 17th level (4d8).