Cerberen Hellfire

A ball of black flame is fired at a location of your choosing. Targets in a 15 foot sphere must make a Dexterity saving throw. A target takes 4d8 on a failed save, or half as much damage on a successful one. This fire spreads around corners and ignites flammable objects in the area that aren't worn or carried.

Cerberen can use this spell without needing V, S, or M

 Damage increases by 1d8 for every spell slot after 2nd.