Wildfire

A mote of rebounding flame shoots towards a target within range that you can see. The target must make a Dexterity saving throw. On a failed save, the target takes 6d6 Fire damage and is burning for 1 minute or until extinguished, taking 2d6 Fire damage at the start of their turns. On a successful save, a target takes half damage only. If a creature, object, or structure is within 10 feet of a burning target, that creature, object, or structure must make a Dexterity saving throw as the fire jumps to them, taking 6d6 Fire damage and burning for 1minute or until extinguished, taking 2d6 damage at the start of their turn on a failed save, or half damage only on a successful save.

     Using Higher-Level Spell Slots. The distance the fire can jump increases by 5 feet for every spell slot level above 4.