If you want to see how to hack clash royale, simply watch this video. It shows full instructions from a to z, within 5 minutes you will have your unlimited amount of gems. This is supported for both iOS & android and you can generate gems more than once.
You should try using this a 2nd time if it didn’t work the first time (this happens very rarely though). Sometimes the server gets overloaded, however, it will work the 2nd time since the server gets overloaded very rarely. Download Game
How to Clash Royale 2017 Unlimited Gold Amount Free Gems & Gold Adder