Blistering Invective

You unleash an insulting tirade so vicious and spiteful that enemies who hear it are physically scorched by your fury. When you cast this spell, make a Charisma (Intimidation) check to demoralize each enemy within 30 feet of you. Each target must make a Wisdom saving throw opposing your Charisma (Intimidation) check. On a failure, each creature is affected as if under the effects of the bane spell. 

Enemies that are demoralized this way take 1d10 points of fire damage and must succeed at a Dexterity save or catch fire.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d10 for each slot level above 2nd.