Tiny Fireball

A dim spark flashes from your pointing finger to a point you choose within range and then blossoms with a low roar into a small explosion of flame. Each creature in a 10-foot-radius sphere centered on that point must make a Dexterity saving throw. A target takes 2d6 fire damage on a failed save, or half as much damage on a successful one.
The spell's damage increases by 2d6 when you reach 5th level (4d6), 11th level (6d6), and 17th level (8d6).