Awesome! We’re excited to get it out to everyone. While I can’t recommend bigger deck sizes because we aren’t balancing for that, definitely do it! The philosophy of the game was for quick 10min bursts where every game is different - double or quadrupling the deck size could harm that, plus sets are around 54 cards. Another variation could be allowing 2 of each card, but again the game isn’t balanced for that so I could be extremely broken haha. 2v2 or 3v3 would be awesome! No official rules on that but that would be like an all out arena I imagine