This will help you stay one step ahead of your opponents and make calculated moves that will bring you victory. Keep an Eye on Your Cards. In Rummyholy, efadda rummyfective hand management is essential to winning games because it allows you to form sets and runs ahead of your rivals. This is paying attention to the cards you need to finish your sets & runs, as well as the cards that you can probably draw from the discard or draw pile. Don't Aid Those Who Are Against You.