This deck has a specific purpose - get some lifesteal so you are +13 life over the opponent, then win with Unspeakable Torment. The deck has proven to be very good at that strategy for me. A reliable gauntlet farming deck that I use after I get frustrated with other decks ;)
Edit: I toned the deck down to 75 cards, but had to add in Rolant Iron Tyrant (honestly, there might not be such a thing as an Argenport deck that isn't *better* if he is in it).
So the goal is to quickly build life up and not lose control of the board. If you do, harsh rule could save you, but it may be close. Once you get near 15+ more health than the gauntlet AI, play an Unspeakable Torment and try to defend the one round to the win.
If you get Wasteland then you will probably grab Imprison (one of the best cards vs gauntlet). The other merchant you will probably grab Withstand (or harsh rule if things aren't in your favor). Once in awhile I'll Wasteland up 4xWithstands if I can just beat down the AI comfortably.