Hydaelyn

You conjure a powerful geyser at a location you can see within range. The area is a 20ft. radius cylinder which stands 40ft. high. All creatures in the affected area must succeed on a Strength saving throw or take 6d8 bludgeoning damage and be thrown 20ft. straight back, from the closest edge of the geyser, and take half as much damage and suffer no other effects on a success. When you cast this spell using a spell slot of 6th level or higher, the damage increases by 1d8 for each slot level above 5th.