I honestly think that Battlecry Shaman will be a viable deck list, at least on ladder. The Synergies between highvalue minions has reached a level of ridiculousness. Not sure this is the best combination of them, but let me know what you think, or if there's some other op combo I'm missing.

You can't just NOT have 2 Hexes. That card is insane.

Decks built around a card or two are not viable unless the cards are powerful to the point of being overpowered and have immediate effect on board without relying on other cards like Mysterious Challenger.

Quote from IamOrphar >>

You are missing Druid class for OP combos :)

Quote from Kbp8 >>

Decks built around a card or two are not viable unless the cards are powerful to the point of being overpowered and have immediate effect on board without relying on other cards like Mysterious Challenger.

The main point of the deck is that it's cards that are good their own, but great with each other!