In this page you can tell people in what village level you found a specific card. You can also add what type of chest it was found in (wood, gold or magic). If you see someone who got the card from the same village as you please like the comment. The most liked comments will be shown first. The more people making connections the better the card strategy list will become on my Cards page.
The following is from Coin Masters official website:
The village level determines which cards can be found in chests as well as their rarity. The cards are spread throughout all the villages in the game, so if you notice that you are no longer finding any new cards, it's a good indication that it's time to move up a few villages before continuing your search.