You hurl five flaming balls at five chosen points within range.  Each point becomes the center of a 5 foot radius sphere of flames. A creature caught in one or more of the spheres must make a Dexterity saving throw, suffering 5d6 fire damage on a failed save or half as much damage on a successful one. A creature caught in multiple explosions is only damaged once, but if two or more of the spheres completely cover the creature, it has disadvantage on the saving throw.  Any flammable objects hit by this spell ignites if isn't being worn or carried.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, you create one additional fireball for each slot level above 5th.