Sure, it’s a bit “Supernatural,” but the idea of a crossroads demon making deals seems like a fun thing to add as long as the players have to pay up in horrible ways.
Trace: • Jack o' the Lantern • Trolls • The Stinging Bowels • Ideas for Undead Wizards • Crossroads Demon
Q: Why did the Drow become a comedian? A: For the Lolth