Water Whip

You summon a long, flexible whip of water to lash out at a creature or object in range. The target must make a Dexterity saving throw. On a failed save, the target takes 1d8 bludgeoning damage, and you knock it prone. On a successful save, the creature takes half as much damage, and you don’t knock it prone.

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