If you are interested in organizing community tournaments or participating in one, we have just the thing for you: a separate website that was specifically created to provide the best experience to everyone interested in competitive GWENT. It is packed with the ability to create and playout tournaments for GWENT and has all the helpful tips and guides on how to use it!
Check it out for yourself: tournaments.playgwent.com/about
Please note that the Tournament Platform is launched as an Open Beta feature, which means that we are still working on it and it is limited to English for now. You can always submit your feedback, bug reports and new feature requests on the official forum right here.
Good luck!