Torrential Downpour

You conjure a heavy rainstorm centered on a point you choose within range. The downpour covers a 30-foot radius and reduces visibility to 10 feet. When the downpour appears, each creature in that area must make a Constitution saving throw. On a failed save, a creature takes 4d6 bludgeoning damage from the force of the rain and is knocked prone. On a successful save, the creature takes half as much damage and isn't knocked prone.

While the spell is active, the area is considered difficult terrain for creatures other than you. You can use your action to focus the downpour into a concentrated deluge on a single target within the area. That target must make a Strength saving throw or take 3d6 bludgeoning damage and be restrained by the force of the water until the start of your next turn. On a successful save, the target takes half as much damage and isn't restrained.

At Higher Levels: When you cast this spell using a spell slot of 5th level or higher, the initial damage increases by 1d6 for each slot level above 4th.