Bombos

From the blade used as the material component of this spell, you send out a wave of flame that circles out from you in a spiral, immediately followed by a series of thunderous explosions.

All creatures within a 120-foot radius of you must make a Constitution saving throw. On a failed save, a target takes 4d12 fire damage and 4d12 thunder damage, is deafened for the duration, and is ignited for the duration. A creature ignited by this spell takes 1d12 fire damage at the end of each of its turns, unless it uses its action to put out the fire.

On a successful save, a creature takes half as much damage, and is neither deafened nor ignited.