Really great write up. I especially like the discussion of how overall win rates are just not adequate to determine deck strength. You also make a great point about mythic. Especially now with the smaller player base, the weekend ranked reset churns them down into diamond and even solar gold quite often.

Also great points about a card win rate being at best a crude indicator. People can slot in Dense Fog into a top-tier deck and pump its win rate.

For these and other reasons, I just have no confidence when GU devs say "we crunched the numbers and everything looks fine."