Ember Swarm

You create a swarm of tiny burning elementals starting directly in front of you. The swarm can travel in a line up to 60 ft and can make up to one arc that does not exceed 90 degrees. Each creature within the line must make a Charisma saving throw or be attacked by the swarm for 3d6 fire damage on a failure or half on a success. The target at the end of the spells line is engulfed by the swarm taking an additional 8d6 fire damage on a failed save or half on a successful save.

At Higher Levels: When you cast this spell using a slot of 6th level or higher, the initial damage and additional damage both increase by 1d6 for each slot above 5th.