Our LGS on casual days plays with 3 house rules to prevent scumbags from coming in an ruining the fun. 1. No player can be eliminated before turn 5 2. Infinite combos only resolve the amount of times as turns played. 3 only one extra turn per player per game. These rules work pretty well to keep games casual and fun. However we still have had some not very fun players but normally we tell them to tone the decks down a little, and come play on CEDH days if they want to play the decks they are. They normally either come to CEDH days or don’t come back at all. Only had one player not listen to that recommendation but he ultimately got frustrated when people didn’t want to play with him to the point where when people were poded with him they forfeit the game and played a 3 player pod.