Blaze Volley

You create three flaming balls and make a ranged spell attack for each ball. On a hit, the target takes 1d6 Fire damage. You can shoot them towards one target or several.

On a hit, each ball also inflicts Burning on the target for 1 round, dealing 1d4 Fire damage at the start of its turn.

Using a Higher-Level Spell Slot. You create one additional ray, and Burning lasts for 1 more round for each spell slot level above 1.