Hearthpwn

I believe this is an earlier edition of someone else's  Secret Paladin.  Wanted to put this here because it's helped me ladder up to rank 8 in about 6 hours of playing.  After getting use to the play style of the deck I won 8 in a row!  Prior to that I would win 4 lose 1.  It does take some getting use to and putting thought on when to play your secrets if you draw into them (Srsly like 1/3rd of your deck is secrets).  

Secret Keepers give you so much value when you play the mirror match up as well as Hunters/Mages.  They additionally give you some sort of board presence when you draw into secrets before Dr 6ing them.

 Went from Rank 19 to 8-7 without changing anything.  23-3 from Hearthstats.. started to get about a 60% win at higher ranks.

This is a kind of gimicky deck though, so it won't be a player who knows what to do.  Usually that Mysterious Challenger bringing out 5 secrets puts people's mind into mush but it's really not too difficult to play around if you have 2 minions on board.