"Viva Las Vegas"-Elvis. Obviously works best in Las Vegas itself. Doug's gambling, drinking and womanizing skills (or just "Carousing" as one old game system put it) may not actually be enhanced, but he'll enjoy himself a lot. Watch out for the "burning soul" lines though.
"Devil Went Down to Georgia"-Charlie Daniels. Really more for contests of skill than luck, but it's a co-worker's favorite song. May be helpful if Doug has a Game of Darkness/Shadow Game declared against him, as those often involve risking your soul/life.
"Midnight Rambler"-Rolling Stones. A stealth song, but the second verse changes it to "Midnight Gambler." Helpful with sleight of hand, or getting out the door if things turn sour.
Google search turns up several references to Mongolian gambling songs, for some reason.
"Devil Went Down to Georgia"-Charlie Daniels. Really more for contests of skill than luck, but it's a co-worker's favorite song. May be helpful if Doug has a Game of Darkness/Shadow Game declared against him, as those often involve risking your soul/life.
"Midnight Rambler"-Rolling Stones. A stealth song, but the second verse changes it to "Midnight Gambler." Helpful with sleight of hand, or getting out the door if things turn sour.
Google search turns up several references to Mongolian gambling songs, for some reason.