Hearthpwn

Pretty fun deck that is surprisingly good, on high rolls the deck is pretty nuts.

Mulligan:

Mulligan hard for Shroud of Concealment and Reconnaissance if you have one of these look for Preparation, Blackwater Cutlass can be traded for a turn 2 Cocealment. Consider backstab for agroo DH or pirate warrior.

Ideal play order examples:

Concealment version:

• T1: Preparation +  Shroud of Concealment 
• T2:  Reconnaissance
• T3: Ideally a random generated 5 drop
• T4: Ambassador Faelin
• T5: Vanndar Stormpike + Gone Fishin'
• T6-8: Discounted Colossals
• T7+: Contraband Stash as finisher

Reconnaissance version

• T1:  Preparation +  Reconnaissance
• T2: Ideally a random generated 4 drop
• T3: Shroud of Concealment 
• T4: Ambassador Faelin
• T5: Vanndar Stormpike + Gone Fishin'
• T6-8: Discounted Colossals
• T7+: Contraband Stash as finisher

Other Tips:

Swordfish + any trade card tutors a colossal.

Deck runs a lot of damage cards, the opponent can get blown out by unexpected stab x2 + tooth x2 + weapon  = 20 damage.

Shadowstep [/card] a colossal makes you summon another colossal minion with  [card]Contraband Stash .

Shadowstep [/card] Vanndar is not as greddy as it looks because [card]Shroud of Concealment draws 1 mana colossals.

Shadowstep Faelin is not that great and often feels like overkill and tempo loss unless you are going for the very long game.

Matchups

So far deck is doing pretty good against mech mage, mech paladin, priest decks, curse warlock, and has problem against fast decks like aggro DH, quest Hunter and pirate warrior.  

Weakness 

Consistency, the deck really needs the core cards early and sometimes luck is not on your side still vanndar blow up is quite common.