Needs better optimization, the game lags like crazy during duels and internet connection is unstable no matter where it's played. Another important point: the banlist is horrible for a best of 1 format, it feels like it was built for proper best of 3 TCG matches. The duels feel very luck based as a result. With a side deck and a best of 3 format, this would be workable. Either add that or fix the banlist to work with single duels. Lastly, the card pool is outdated on launch by months. What?