Hearthpwn

This deck pretty much does the exact same thing every game, which is going second if you get Mana Addict + Counterfeit Coin + Conceal you play all those cards on turn one and then Preparation into Myra's Unstable Element or going first you do the same thing on your second turn that works because Myra's doesn' stop after drawing the rest of the cards in your deck but instead since the deck refreshes while you draw you always get a full hand.

From there you have a Mana Addict your opponent can not interact with unless he has like a Flare but that hasn't been the case for me so far.

Now this doesn't have an answer to Ice Block and pretty much auto loses against Coldlight Oracle since after playing Myra's Unstable Element your deck is empty till you draw. But pretty much everything else you can't lose against since Druid can't Naturalize the Addict Warlock can't Soulfire the Addict and Priest blows all their spells on a minion that's just gonna get sapped.