Crashing Wave

This spell allows you to move like water. When you cast this spell and then as a bonus action on each of your turns until the spell ends, you can move up to 20ft in a straight line. While moving in this way, you can move though another creatures space. When you move though another creatures space for the first time on a turn, it must succeed on a Strength saving throw or take 2d6 bludgeoning damage and be knocked prone.