The game is really good. Most of the card characters that you can get is from the original Clash of clans game. The gameplay is you must protect your Main castle against the enemy troops that will march towards your base. Summon your troops using the cards that you put on your line-up and deploy them using the elixir that continuously regenerates.
The first one to lose their their main castle or the player with the most stars after the time expires will win the game.
Overall, the game is really good. You just need to upgrade your troops and think wisely of the cards that you will put on your deck to ensure your victory.