Get this Firefly-class Fluxx deck, and the Firefly Upgrade Pack and we'll include all the rest of the dubious cargo and suspicious characters you can carry,
though some may be more trouble than they're worth.
That's four free promo cards: both Saffron (her full expansion is discontinued) and Bridget and even some Alliance Treasure though you may find The Alliance comes along with it, too, hot on your tail.