Water Whip

Upon casting the spell, a creature of medium size or less you can see within range must succeed a dexterity saving throw against your spell save DC. Upon a failure, the creature is grabbed by the whip, takes 3d6 bludgeoning damage, and is knocked prone by the whip slamming them onto the ground.

At higher levels: For each spell level above first, the damage taken increases by 1d6.