by mrmonkeyball
The only thing we found out that can be overpowered is that building that gives you VPs for your amount of cloister buildings you have. If (new) players are not aware of it and leave most cloister buildings to just one player, he wins the game in the end almost surely by a huge margin. If all players build equally many cloister buildings, that building stays good but not overpowered.And, no game is won just by building the priory and no game is lost just by not doing it. It is a good building though and not a mistake to build it early.