Soap knows his shit haha ^^'
I started watching the videos he told me to, and I forged a makeshift Lock Zoo deck with what cards I do have access to. I went like 5-2 or so. My last win was actually against a guy who was decked to the nines with amazing stuff, I mean clearly he spent quite a bit on this game, unique backed cards, played a legendary or two, etc. And he was a mage too which against a Zoo Deck is murder with all that AoE.
I've spent $0 USD on this game so far. I understand how I can improve my deck, I know that if I spent USD on it that improvement could come FASTER, but I don't need any of it to be very competitive if I just get smarter about knowing what sort of options other classes and decks have at clearing waves.