Argenport Mid (masters)

This deck, along with an updated version of my Hooru Midrange deck, took me to masters fairly easily, going on a win-streak through most of diamond.
Most of the cards are fairly self explanatory. I think the only real question is why I don't have Bartholo, the Seducer in the deck. IMO Bart was a lot better when you could press-gang on turn 4 and would usually draw all your ruffians or at least 2-3 every game, but now I don't think he's worth it (I also don't have 4 copies of him yet). I think most of the market options are pretty solid, apart from Telut, Queen's Hand which could be better as Stormhalt Knife if you have trouble with aggro, although between Defiance, Vara, Vengeance Seeker and Backbreaker you have the tools to fight it, or as some kind of anti Worldpyre tech if those decks kick off. You might also want to try running Equalize maindeck, in which case you put Cast into Shadow into the market.

That's about it. Enjoy!