Water Jet

A jet of pressurised water bursts from your hand in a 60ft-long and 5ft-wide line in a direction of your choice. Each creature in the line must make a Dexterity saving throw. A creature takes 4d6 bludgeoning damage on a failed save and is knocked prone. Creatures who succeed on the saving throw only take half damage and are not knocked prone. 

The jet douses exposed flames and pushes objects 20ft away from you, so long as they are not being worn or carried. 

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d6 for each slot level above 3rd.