Clash of clan is a great online game available in the playstore. Here you can build your own village and you can play two types of battle. Home village and builder base village. Clan war are amazing because you can fight with different group of people making a group called clan. The more you get involve in the game more interesting it becomes. There are various types of tropps you can use for the battle. It a game of strategy so there is no shortcut except buying gems and gemming. You have to steadily progress and build more powerful village of yours. Globally ranking is done and it restarts in every month. Enjoy the game