I stopped playing after the release of Rastakhan. I had 5k wins, spent so much time, now I'm actually happy.
It is an effing broken game, lots of grind and so little gain. Match-ups are boring, netdecking slays creativity. Even without netdecking, they give you plain stupid auto-include tools to create your decks. So many "I drew it, I win!" cards...
Please, just leave this game and never look back. I kinda look back, at least Hearthpwn, to see what Blizzard have been doing to save the game, just a habit. I see that they released a wild bundle. Yeah we all wanted to play your never-supported format, exactly what we needed.
"Just wait for the next rotation." you might say. Guys, one rotation goes, new broken stuff comes along. I've seen it so many times. They have this great opportunity, an online card game, but they are always so slow to react. It's been asked all the time for them to do frequent balance changes. Their answer, "Nah, it's fine".
Anyway, I wanted to write this for some time. Do yourself a favor and join me. There are other games, same or other genres. Support indie games for example, they need it more than Blizzard. Stop playing for a second and think about how you spend your time. Thank you.