Now that quite a lot of C'Thun-related cards have been revealed, I thought let's make a Shaman deck, also including The Mistcaller, due to its synergies with Youngful Brewmaster, Brann Bronzebeard and of course, C'Thun himself. It is a VERY slow deck, and it's definitely not finished yet, but it looks like it could be going somewhere.
Also I decided to not include the Ancient Harbinger, because I feel like it's pretty unnecessary in this deck, as it is more focussed on the strong Midrange-y minions, which will become absurdly strong after The Mistcaller. And I feel like by the time he's really gonna make a difference, you've already drawn him.
Thanks for taking a look and feel free to comment about it!