Hearthpwn

You have every right to express your disappointment. However, we have only seen 12 cards of the expansion so I feel like it is a little bit early to start the complain train. For all we know the really exciting cards are just around the corner.

In addition, I wouldn't say the new Hagatha card is a copy of Kazakus at all. It uses Shaman spells for one, rather than unique potions, and it comes with an extra 5/5 body. We have also gotten two new mechanics in the schemes and in twinspell, which all seems pretty exciting, in addition to the ones you mention. 

I think we would need to see as many as 75% of the cards before we can really get a good idea for the quality of the expansion (at least from a new-card stand-point). As for the solo content, it is optionally free if you have enough gold, and it also could be amazing and so worth the extra money.

Lets not count our chickens before they have hatched.

This brawl is so bad. It is basically pay to play constructed and hope you get lucky enough times in a row that the reward afterwards is worth it. I wish Blizzard could have been more creative with this. The worse part about this is that it is worse then actually playing constructed, because there is more on the line if you lose.