There are only about two days left in the season, so we'll see how far I can get. My cards are still pretty weak, but so are a lot of other peoples' cards in the Gold league. Not everyone has them at the max level possible. The people who do are probably already up in the Diamond and Champion leagues already. That's the nice part about trying to gain rank near the end of the season.
It's much more difficult to gain rank at the beginning of the season when everyone with their powerful cards is stuck down at the bottom with weaklings like me.