A line of roaring flame bursts out below you as the blast rockets you 30 feet into the air. Each creature in the line and in a 10 ft circle on the ground below you must make a Dexterity saving throw. A creature takes 5d6 fire damage on a failed save, or half as much damage on a successful one. Once per round, while concentrating on this spell, you may use your action to move up to 30 ft in any direction. A creature must attempt this saving throw only if you end your movement above it.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the damage increases by 2d6 for each slot level above 2nd.