No offense man but, if some of you guys are stucked at gold with Ankis and 3 floodgates, no wonder why you think this game is expensive... the problem might be you and not the cards, just saying.
Sorry I think this comment is for me since I put my deck with similar cards you mentioned.. I had long hiatus, but felt confident so I jumped right through the Ranked only to found out I don't even know most of the card being played. I got rusty and didn't research the meta so it's partly my fault. I'm now improving. :)