Hearthpwn

My Legendary Control shaman. Viable in the current Nax Meta. 

Reasoning for the less commonly used cards.

Wild Pyromancer added as extra aoe to deal with the high amounts of Aggro Rogues and Zoo. It is great a dealing with Death Rattle minions and Divine Shield can also be used as +1 Spell damage with lightning storm, adding a little edge when facing a Concealed Auctioneer. Can be replaced with a second Argent Squire if the Meta changes from Agro. 

Mana Tide Totem While many people don't like running this card I find it has a great many situations where it is very useful and at very worst it is a card for card trade often removing the cards that would later remove your Flame tongue later. Places to use Handlock: drop on turn 4 before a Drake of Giant goes down will either require them to Waste a turn to Kill with a Soul fire or Owl giving you an extra card and board presence for the threat or it sticks there for multiple turns giving double changes to get precious Earth stock or Hex. Often giving you the momentum to deal with any threats he can drop. Miracle Rouge: Dropping Mana Tide before turn 5 delays the dropping of Auctioneer or Drake giving you that extra turn to develop your own threats and if they chose to ignore it the extra card will easily give you the advantage. With Priest andWarrior behind a taunt this can can get massive value or bate out removal protecting your Unbound Elemental. This card is Slightly weak against Zoo decks but at worst absorbs  3 damage and cycles a card. 

Stormforged Axe great against Agro good to have a little extra removal and another way to buff the Unbound Elementals with all your ways of doing 3 damage it is the little bit extra need to kill something like a Chillwind Yeti. I do see some shamans running  Doomhammer but it is an expensive card that usually only ends up being used as damage to the face as it is very rare you can afford to take 6 hits to the face control shaman really isn't about the burst once you have board control you will by far have enough Damage to get the kill. 

Advice on difficult match ups.

Control pally: the best advice against this deck is just don't over extend take full advantage of your Totems often with defender of Argus your hero power is better than his. If you over extend you will lose to equality's and concentrations this match up is about value and often goes to fatigue but you should nearly always win. This is one match up where over drawing can be a problem can don't be afraid to sac you mana tide and use the  Auctioneer as a 4.4. One final thing to keep in mind Always keep a Hex or Earth Shock for Tirion Fordring.

Hunter, control or Agro:

This is basically a race who can kill who first you can try play a safe game and keep only 3 minions of the board but with some Hunters now longer running Unleash and the face that limiting your self to 3 minions will allow him to kill you  with Hero power and charge before you can kill him my advice is fill the board the only Aoe hunters have to Explosive Trap which you can usually see coming and play around Explosive Shot. With a full board you will limit the possibility of card draw by having to many minions and hopefully put up enough of a threat he will be forced to play a defensive game.

Freeze Mage

This while is mean to be a bad match up I have a very high win rate against it. The tactic I employ is very simply charge face you need to put up enough pressure to stop the mage being able to get any damage out of  lighting bolt to face with unbounds and spell power, axe face save Rock biters for Al'Akir the Windlord to face ignore the Mages aoe and keep pushing damage once you get your fire elemental out they often will need to fire ball them to remove making it possible to draw out enough damage that they can not even get the kill. Tips save Hex for turn 9 Alex and Earth shocks for Doomsayers.  

If you have any questions or need any Advice post below and I will get to it ASAP.