You conjure a mysterious screaming purple flame which burns the body and soul. When you cast this spell, you can choose to affect a 100-foot long, 10-foot wide line, or you can choose to fan the flames across the area, sweeping through a 60-foot cone. Each creature in the area must make a Dexterity saving throw. On a failure, a creature takes 5d6 fire damage and 5d6 psychic damage, and is weakened for 1 minute. A weakened creature can make a Constitution saving throw at the end of each of its turns, ending the effect on itself on a success. On a successful save, a creature takes half damage and isn't weakened.

 When you cast this spell using a spell slot of 6th level or higher, the damage increases by 1d6 for each slot level above 5th.