A set/mechanic about gathering resources - MaRo's lessons learned | tcgmode

So I've just finished reading [MaRo's last "lessons learned"](https://magic.wizards.com/en/news/making-magic/lessons-learned-part-9), where he talks about the design decisions on Lost Caverns of Ixalan and MKM, and found a scrapped mechanic so interesting, I really hope we one day get in an actua...