Water Ball

Conjure a highly pressurized orb of water to shoot at a creature or object in range. Make a ranged spell attack against the target. On a hit, the target takes 1d4 bludgeoning damage and 1d4 cold damage. All creatures in a 5 ft cone behind the hit target must make a Dexterity saving throw. If they fail they take 1d4 of bludgeoning damage. The cone leaves behind a small puddle of water.

The initial hit of this spell deals an additional 1d4 of bludgeoning and cold damage when you reach 5th level (2d4 of each), 11th level (3d4 of each), and 17th level (4d4 of each).