Combust

You create a mote of fire and fling it at one creature within range. Make a ranged spell attack against the target. On a hit, the target bursts into flame, and takes 1d6 piercing damage. The target must then succeed on a Dexterity saving throw or catch fire. If the target catches fire, on the first round thereafter, creatures adjacent to it (including you) must each succeed at a Dexterity saving throw or take 1d4 points of fire damage. The target can use its action to put out the flames.