The title pretty much says it all. If you get the imp out and then play Deathwing, you clear the board and get to draw a card for each card discarded, plus Silverware Golem sticks to the board afterwards and Fist of Jaraxxus is guaranteed to hit opponent's face. Thaurisan only needs to hit either Deathwing or Malchezaar's Imp to play them both on turn 10.
I run a Handlock deck with Classic Deathwing, 2x Silverware Golem, 2x Fist of Jaraxxus, and 2x Malchezaar's Imp, and I do pretty well. I'd love to see how well someone who's actually good at the game does with this concept.