According to Supercell they are leveling the playing field for Clash Royale tournaments and truly competitive play!
Clash Royale's fast, strategic gameplay is well-suited to competitions. We're thrilled that players are already organizing their own tournaments, and we've been watching as many as we can! One big lesson so far is that disparities in card and tower levels can be hard to overcome for even the most skilled players. In order to make tournaments a big part of Clash Royale, our goal is to give players an easy way to level the playing field.
To achieve this, we plan to emphasize the importance of our "Tournament Rules" in the future, which we consider to be the basis for competitive Clash Royale play. This will ensure that skill, timing and placement will always be the deciding factors in competitive matches.