Preserving Priceless Cards. The ability to discern when to let go of cards and when to hold onto them is equally crucial. Keep in mind that cards tlucky rummy starhat are consecutive in the same suit or have several cards of the same rank may come in handy later on in the game when they form a set or sequence. Conversely, in order to strengthen your hand, you might need to discard any unmatched cards that do not fit into any possible sets or sequences.