For many, its the best opportunity of the year to buy, sell, and trade cards in person

Arguel's Blood Fast Bandit's Talent Black Market Connections Braids's Frightful Return Braska's Final Aeon Call of the Ring Chains of Mephistopheles Coercive Impetus Construct a Cosmic Cube Dark Prophecy Demonic Covenant Demonic Lore Discreet Retreat Dockside Chef Echo of Death's Wail Elspeth's Nightmare Erebos, Bleak-Hearted Erebos, God of the Dead Forbidden Crypt Gravestorm Greed Greed's Gambit Grisly Transformation Hateful Eidolon Infernal Scarring Infernal Tribute Krovikan Fetish Krovikan Plague Lich Lich's Mastery Lithoform Blight Lord Skitter's Blessing Midnight Oil Mindless Conscription Mornsong Aria Necrodominance Necromancer's Stockpile Necropotence Nihilistic Glee Null Profusion Oath of Lim-Dl Obsessive Pursuit One Ring to Rule Them All Origin of Black Widow Out of the Tombs Phyrexian Arena Phyrexian Etchings Raiders' Spoils Robot Domination Rune of Mortality Scavenged Weaponry Scion of Halaster Scourgemark Sicken Soulreaper of Mogis Summon: Anima Tainted Well Teval's Judgment The Cloning of Shredder The Creation of Avacyn The Cruelty of Gix The Death of Gwen Stacy The Eldest Reborn The House Grows Hungry The Long Reach of Night The Revelations of Ezio The Rise of Sozin The Toymaker's Trap Tymaret Calls the Dead Underworld Connections Vampiric Rites Vampirism

Cards stacked too closely together can become damaged over time, and the same goes for loose piles of cards
All cards are raw (ungraded) unless otherwise stated
I don't like four-mana permanents that don't do anything when they hit the battlefield, but Outpost Siege is unlikely to get removed if you choose Khans when it enters, and it should give you a steady stream of those impulse draw cards
You must also reveal all face-down spells and permanents you control if you leave the game or if the game ends.