Burning Fissure

The ground around you starts to rumble and burning rocks rise to the surface. Any creatures other than you within that range must make a saving throw. On a failed save, creatures take a combination of 1d4 bludgeoning damage and 1d4 fire damage, and is knocked over into a prone position. Loose ground becomes more unstable after Burning Fissure and will need to be cleared. The full radius of the spell takes at least 1 minute to clear by hand

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d4 for each part of the spell for each slot level above 1st.