Water Whip

You manifest a whip-like stream of water and make a melee spell attack against a creature that you can see within 30ft of you. On a hit, the target takes 1d6 bludgeoning damage, and if it is medium or smaller it must make a Strength saving throw against your spell save DC or be knocked prone.

The damage dealt by this cantrip increases by 1d6 bludgeoning when you reach certain levels (2d6 at 5th level, 3d6 at 11th level, 4d6 at 17th level).