Hearthpwn

Overview:
Easily overpower the boss with a turn 1 Dragonhatcher and big taunt dragons.

Mulligan:
Dragonhatcher. Toss your dragons back.

Early Game:
Turn 1, play Dragonhatcher. It will pull either Sleepy Dragon or Primordial Drake. They will be full strength.

Mid Game:
From there, heal the dragons, let the board become full of dragons, rez the dragons if necessary, and go face. Play Convincing Infiltrator, Catrina Muerte and Obsidian Statue whenever they come up.

Late Game:
Most of the cards in the deck won't even be used. The fight is so easy.

My Other One Night in Karazhan Decks:
The Parlor
     Silverware Golem (Patron Warrior)
     Magic Mirror (Silence Priest)
     Chess (White King)

The Opera
     Romulo & Julianne (Taunt Warrior)
     Big Bad Wolf (Resurrect Dragon Priest)
     The Crone (Murloc Shaman)

The Menagerie
     The Curator (Exodia Mage)
     Nightbane (Resurrect Priest)
     Terestian Illhoof (Thief Priest)

The Spire
     Shade of Aran (Aggro Mage)
     Netherspite (Freeze Mage)
     Free Medivh! - Prince Malchezzar (Jade Taunt Druid)