Clash Royale is a game all about strategy and luck. The strategy part of it comes from the game play part of it because you can play someone way better than you and still win and same goes the other way like if you are bad you can lose to someone way worse than you if they have no strategy and they do. The luck part of this game is when you get chests and in those chests you get troops, coins, and gems. If you get lucky you get a epic or a legendary troop because those are the best.
I like to play Clash Royale because it is an adventuress game, strategy game, and you can beat your friends. It is adventuress because when you battle other players and win you gain trophies and when you lose you lose trophies. When you get enough trophies for the next arena you go to the next arena. In the higher arena you get better cards like in arena four that is where the first legendary comes in. The beat your friends part comes in when you join the same clan and friendly battle. In a friendly battle you can't lose or gain trophies. So basically all you get are bragging rights.