Hearthpwn

1Silence trivializes Razorgore, by letting you fill up the board with 0/X eggs.  You'll probably eat a Bloodlust, but once you've used Mass Dispel to get most or all minion slots filled with an egg, its the only risk.

Use Unstable Ghoul, Wild Pyromancer, and Explosive Sheep to keep the eggs from hatching until you can queue up a full board for Mass Dispel.

Mulligan for Unstable Ghoul or Northshire Cleric, Mass Dispel, and Silence to get the first egg down before it can hatch, then the cards above to mitigate the increasing health of the eggs.  If you can dispel them all while at full health, you probably can't lose unless he has back to back Bloodlust.

Shade of Naxxaramas is in here as the finisher, but could be played before you get the board egg-blocked.  Light of the Naaru can be useful as a finish as you buff it healing fromBloodlust, but isn't necessary.