You can learn a lot about your opponents' strategies by seeing how they use jokers in their sets and runs. Then, you can modify your own strategy accordingly. For instamatakagamence, if you see that a rival is using a joker to finish a set of high-value cards, it can mean that they are almost certain to win & should be your top priority to take out. You can raise your chances of winning at Yono Rummy by making the most of your joker usage and exploiting knowledge that comes from your opponents' joker usage.