Wave of Elemental Fire

You summon a surging wave of searing heat and elemental fire that incinerates everything in its path. This wall of flame, measuring 5 feet thick and reaching up to 10 feet in both height and width, rolls forward for 30 feet before dissipating. Any creature caught in the wave must succeed on a Dexterity saving throw or suffer 5d6 fire damage and ignite, suffering the Burning condition until the flames are put out. A successful save reduces the damage by half and prevents ignition. Furthermore, any unsecured flammable objects within the area of effect are set ablaze until they are destroyed or the fire is extinguished.