Aura Ablaze

Once per long rest as a bonus action you can set Flameheart Radiance aura ablaze. Every creature within 30 feet of you must make a Dexterity saving throw against you spell save DC and take 4d6 fire damage on a failed save or half as much on a successful one.

At Higher Levels. This damage increases to 6d6 at level 11 and 8d6 at level 17. You can use this ability additional times per long rest by spending two sorcery points.