A line of light 60 feet long and 5 feet wide emanates from you in a direction of your choice. Each creature in the line must make a Dexterity saving throw. On a failed save, a creature takes 10d8 radiant damage and catches fire; until someone takes an action to douse the fire, the creature takes 1d10 fire damage at the start of each of its turns. A successful saving throw halves the damage and prevents a creature from catching fire. The burning radiance ignites flammable objects in the area that aren’t being worn or carried.