Cards are usually obtained in chests won in events, raids, or purchased with cash. The village-level controls which cards and rarities can be found in the chests when seeking new cards. Swapping cards with pals is another wonderful way to accumulate cards. Regular cards can be swapped at any time during the day, subject to the daily limit, however, gold cards can only be traded during special events. Last but not least, cards can be found in chests and during special events!