Waterball

A giant ball forms from you to a point you choose within range and then slams into a large wave of water. Each creature in a 20-foot-radius Sphere centered on that point makes a Dexterity saving throw, on a fail taking 6d6 Force damage and has the Prone. Half as much damage on a successful one.

Objects with the burning condition are put out.

Using a Higher-Level Spell Slot. The damage increases by 1d6 for each spell slot level above 3.