Asra's Meteoric Decent

You engulf yourself with heat and otherworldy energies as you fly up 20 feet, before launching yourself at an unoccupied space on the ground within 90 feet, detonating on impact. This movement does not trigger attacks of opportunity. Each creature in a 20-foot-radius sphere around you, where you impact, must make a Dexterity saving throw. A target takes 6d6 fire damage plus 1d8 force on a failed save, or half as much damage on a successful one.

The fire spreads around corners. It ignites flammable objects in the area that aren't being worn or carried.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the force damage increases by 1d8 for each slot level above 4th.