@spook When doing these things, there isn't really a good way to control for player skill (though if someone has a good idea, we would definitely consider it). That said, I think Big Blue is kind of attacked from too many angles. Against Gush, the deck has more mana, a major hurdle in Dack Fayden, and a less efficient draw engine (not to mention randomly getting hosed by Null Rod/Stony Silence). Against Storm, the deck's permission is taxed by the discard/grids, and many cards don't interact with the opponent such as Tinker, Vault/Key, Yawgmoth's Will. Against Shops, the deck has a couple more mana sources but is typically trying to resolve 3 mana instants and sorceries - Thirst is particularly awkward as to get card advantage, you really want to be discarding artifacts but most of your artifacts are mana sources you need to cast spells. Revoker is also typically great against them and Tangle Wire is a lot better when your opponent doesn't make Tokens casting spells. Maybe the Golem restriction allows Big Blue to shift a bit more to combat Gush and Storm but I'm not convinced that will happen.