Couple of changes from my QCP Challenge List:
Edict of Makkar back to market and Annihilate main
Buhton to synergize with Darkblade; have generally found him to be stronger than Sear.
Yushkov to fight off the SS mirror and the rise in Xenan decks
Hideout Pistol over Desecrate in the market as cleaner removal.
*I think Open Contract is an easy 4 of main, particularly if the percentage of SS in the meta continues to rise. The deck does not have enough draw for the downside to be noticeable.
Good luck! ^-^