Also, knowing the colors that are more common in the deck will help you decide which cards to discard and which to pursue, improving your gameplay in the process. all the gameIt takes careful preparation & strategic thinking to create powerful color sets in Color Rummy. Collecting cards that complement one another in terms of rank and color is a good strategy. For example, if you already own a few cards in a particular color, concentrate on getting more that can finish a set or add to a sequence.