Water Bolt (Waterbending Arts)

You hurl a bolt of water at a creature or object within range. Make a ranged spell attack against the target. On a hit, the target takes 1d10 bludgeoning damage and must make a Strength saving throw or be knocked prone

This spell's damage increases by 1d10 when you reach 5th level (2d8), 11th level (3d8), and 17th level (4d8).