Re: Is building swap allowed if leading to duplicate buildin
There is nothing wrong with duplicate buildings anymore as per Bruno Faidutti. He said it is an unnecessary rule. You can do a search for that discussion (maybe a year ago or when the expansion came out?).
If you search well, you'll find two different opinions from the author. Bottom line is, it's up to you to decide whether ou allow duplicate swaps or not. But if you do, better to have an incentive for doing so (hence the bonus points).