To trade cards with your Clanmates, you need Trade Tokens! You can trade all card rarities and even trade for cards you haven’t unlocked yet. The only requirement for using Trade Tokens is for your King to have reached level 8.
Each rarity has its own token. The number of cards to be traded for each rarity is as follows:
Each trade will show two Tokens spent. One by the player requesting the trade, and another one by the player accepting it.
During Clan Wars, you can also trade cards with the Trader! For more information, read our article about The Trader.