You have learned to control water, using it to knock your enemies to the ground. You summon a wave of water up to 30 feet away from you that crashes down onto every creature that is 10 feet in front of the wave, the wave is 10 feet wide and 10 feet tall. On impact the wave deals 2d8 bludgeoning damage and those hit by the wave are knocked prone, creatures hit by the wave need to make a Strength saving throw, on a successful save they only take half damage and aren't knocked prone.