Reason for the 4* is because we're not allowed to trade cards with friends/players it would be so much more awesome if that were possible also i think for those of us who does spend actual money should be awarded more gems and not only that but a good amount or at least a secret rare card or something like that but it's also a fun game to play good for Yu-Gi-Oh players.(ITS TIME TO DUEL!!)THANKS KONAMI FOR SUCH AN AWESOME GAME I SAY THAT WITH SINCERTY AND HONESTY.