You make a weapon attack that rings the target in flames. As part of the action used to cast this spell, you must make a melee attack with a weapon against one creature within the weapon's melee attack reach, otherwise the spell fails. On a hit, the target suffers the attack's normal effects, and it becomes sheathed in rings of flame until the start of your next turn. If the target willingly moves before then, it immediately takes 1d6 fire damage, and the spell ends.