Devil's Hiss

You let out a dissonant chord infused with subtle arcane energy towards a creature of your choice. The target must make a Charisma saving throw against your spell save DC or take 3d8+6 fire damage and be intimidated. On a successful save, the target takes half damage and is not intimidated. 

When cast using a 4th level spell slot or higher, add an additional 1d8 per spell slot used.