A new game mode was released in Hearthstone today. It is a new set of dungeon runs designed for the new Witchwood set. I really enjoyed the last set of dungeon runs so I'm excited to get my hands on this new set of runs.
So far I have only played as 2 of the 4 classes they give you as options. You don't get the standard classes, which I think adds a cool new twist to the format. In stead of just thinking about what works for certain classes, you are pretty much trying to figure out how best to use the new mechanics presented.
I'm really enjoying it so far and will probably be dumping a lot of hours into this over the weekend. In fact, I might go play another round right now!