I don't have many games under my belt with Conjurer Mage (aka Khadgar Mage), but I gotta say it has been my favorite deck from this expansion. There are a bunch of versions floating around, but oh man the one suggested by a comment on hearthstonetopdecks to include "the Janalai package" is so godly!
What is cool about this deck is that you are discovering stuff during the match with Firetree Witchdoctor and the new Raven. Pulling of the Giant + Khadgar + Conjurer's Calling is super satisfactionary + it's not even RNG based. Like there are two possible minions in the pool. Later on Astromancers and the 8 mana summon two dudes card are of course summoning random things, but if you've gotten so far in the game the sheer power of putting basically big threats on the board turn after turn wins control matches quite handily.
Maybe I need to face 10 aggro decks in a row to lose my high hopes for this deck though! But even then I saw two possible inclusions mentioned here (abomination and tunnel blaster) to add some needed aoe clears.