It's harder than it looks to get to the Six parth of the ranked arena, players like us wait a long time in line to find a whale (impossible to beat them). Change the system to something more free, it doesn't need to be as open as the theme arena, but at least we can catch weaker opponents or of the same strength. I saw an open topic here about this and as I also had it in mind I decided to reaffirm here, take this suggestion to the developers.