Erupting Geyser

Choose a point you can see on the ground within range. A large geyser appears and erupts steaming hot water in a 20-foot cube centered on that point. Each creature in that area must make a Dexterity saving throw. A creature takes 3d12 fire damage on a failed save, or half as much damage on a successful one. Additionally, each creature that fails their saving throw must take 2d6 fall damage

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d12 for each slot level above 3rd.