Curse of Naxxramus is the new solo adventure content in Hearthstone. I’ve finished the Normal Mode and the two class challenges in this section. The next step is to try the Heroic Mode.
So far, I have been really unsuccessful with this part! Try as I might, I cannot defeat Anub’Rekhan in Heroic. Instead, I ended up using it as a way to level up some of my decks that still needed to unlock cards. I also took this opportunity to experiment with building a customized deck (something I’d never tried before).