Hearthpwn

A C'thun rogue deck that relies on a heavy secret package to empty the deck quickly and defend yourself against aggro. 

Don't be afraid to use shadowsteps on your minions,  even thought doing so means you get to play one less C'thun at the end. Most matchups don't need more than one C'thun to finish them. The only decks you are going to want to keep your 2 shadowsteps for C'thun are heavy control decks that can gather large amounts of armor, or big boards (even thought your best bet is to keep board control until you can get your C'thun)