I meant Calculating your own deck, and the value you can get from cards and combos, in order not to Put something underpowered in your deck, and you'll see there are many cards that play for their Prov, that do not see play simply because they are not in Meta Snapshots or Streamers Decks, Streamers are able to Create decks every now and then, so the game is pretty diverse, why ppl don't try that is another topic, I agree that certain decks become god tier and need to be nerfed in a hotfix, but you can tech against them if you are creating your own homebrew deck.
Also Creating Homebrew decks needs experimenting aswell, you might see you are bad at certain matchups, and need to Change some cards to improve your bad matchups, for example, I Created a Bloodthirst Deck last season, and actually Climbed with it, and defeated most Hidden Caches and uprising players, aswell as Poisen NG, Or I wanted make a Siege deck, played some games, realised Trebuchets don't bring that much value cus the opponent will play all their cards on melee row, so Why not add some Crazy row damage and use this advantage? I added Dragons dream and Sabrina, and it worked perfectly. Same for Streamers, if Gwent was that imbalanced, they wouldn't have been able to come up with new decks every now and then, but as a whole I agree that it needs to be better than this, but as I said, it's not that bad either.