Aqueous Blast

You conjure a small ball of water and hurl it at a point you can see within range, which can be extended through hydromancy. The ball then expands in an explosive blast of water. Each creature in a 20ft radius must make a Strength saving throw. On a failed save, a creature takes 4d8 bludgeoning damage and is pushed 20ft away from the center of the sphere. On a success, the creature takes half as much damage and is pushed half as far. The water spreads out across the ground, extinguishing unprotected flames and forming a thin puddle in the area.

At higher levels  When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d8 for each slot level above 3rd.