Devs are so good at balancing cards and game play that there's basically a total of 3 meta decks. If you don't have one of those decks it's a promised guaranteed loss. Even if you drop enough money to feed the homeless for a year and don't have those decks, you will lose. Matchmaking isn't even the problem anymore, despite being higher in all values with a deck, if it isn't a meta-you will lose. Better off downloading a north korean dating app, you'll have better chances of success.