To unlock a Club, you need to collect at least one Club Card for it. If you're looking for a specific Club, to increase your chances of collecting the needed Club Cards, make sure to: 

  1. Play in different game modes. Certain Clubs are featured as rewards in specific game modes. For example, the Wolf Club can only be unlocked through Arena. Playing in Kingdom, Brink Game, Arena, or Tournament modes can increase your chances of getting different Club Cards.
  2. Participate in Events. Follow live Events, as sometimes, special Clubs are featured.
  3. Get and open Chests. You can get them in various ways: winning Stage matches, completing Daily Quests, Free Rewards and Daily Deals in the Store, being in the top 15 in the Leaderboard Ranking, etc. After putting in seven balls, you unlock the Pin Chest on the Main screen. 
  4. Challenge Pass. Club Cards can be earned as rewards for unlocking milestones by completing Daily, Active, and Exchange Quests.

Different resources can also be found through the Store.