As a F2P it is really easy to spot the real P2W people in arena. They have scaling ninja that do 50%+ damage with standard attacks in the first round before they even ramp up. The others are just P2P, and a F2P can beat them if they happen to have the right counter team. Actually compared to just a month ago, I'm seeing much more variety in ranked arena now. Not too long ago it was nothing but 6paths in there.