The glitch is working! If you miss our previous post on Clash Royale Unlimited Gems, Gold and XP Glitch, just go here. This method is working on Clash Royale 1.2.0 latest version version.
Download Clash Royale 1.2.0 Here
Just follow the tutorial and you will gain unlimited gems on gatherer and unlimited XP also, now you can increase your battle experience and card collectables.