Fire Devotion( Complete Champion, p. 58)
You can burn your enemies with your melee attacks.
Once per day as a swift action, you can sheathe your body in red and orange flames. The fire does not harm you, but you illuminate the nearby area as a torch would. While you are thus alight, each of your melee attacks deals 1 extra point of fire damage + 1 point for every three character levels you possess (maximum +7 at 18th level). This effect lasts for 1 minute. Any foe injured by this fire ignites and burns for an additional ld4 points of fire damage per round unless it succeeds on a Reflex save (DC 10 + 1/2 your character level + your Cha modifier). A burning creature can take a move action to automatically douse the flames.
You can select this feat multiple times, gaining one additional daily use each time you take it.|||If you have the ability to turn or rebuke undead, you gain one additional daily use of this feat for each two daily turn or rebuke uses you expend.