Water Eruption

You point at a spot within range, causing a violent eruption of water. Each creature within a 20 feet radius must succeed on a dexterity saving throw. A creature suffers 5d6 bludgeoning damage and is knocked prone. Succeeding the saving throw causes the creature(s) to only take half damage and is not knocked prone. Creature(s) and objects within the radius is soaked in water.

At higher level. For each spell slot used above 4th level, increases the damage dice by 2d6.