Throughout the game, you can have more options for forming runs or sets if you hold onto a variety of cards from different suits. You might be able to make runs with different combinatioslots and casinons when other players discard cards, for instance, if you have a mix of high and low cards from different suits. Having this flexibility can help you keep the game moving forward & keep your opponents guessing about your strategy. Because they give you important information about what your opponents are collecting or discarding, discards are crucial to rummy strategy.