DHARMA Initiative playing cards were used on and off the Island. Unless otherwise noted, all DHARMA Initiative playing cards seen on the show bore the logo of the Swan station on their reverse. The cards were first seen when Libby was in need of polysporin. In order to win back the medication, Jack played a game of poker against Sawyer with the DHARMA cards. ("Lockdown") A pack of the cards was used by Frank and Miles to pass the time, while the others were trying to decide what to do with the Man in Black. ("The Package")