Given that we have such generous friends who are willing to include some of their quite valuable cards in our cube, in order to not accidentally steal anything here is a list (currently incomplete) of what people have donated:
Jasper
Ancestral Recall
Ralph
Survival of the Fittest
Le
Karn Liberated
Red Sun's Zenith
Volition Reins
Sun Titan
Consecrated Sphinx
Baneslayer Angel
Koth of the Hammer
Bloodline Keeper/Lord of Lineage
Mirran Crusader
Avacyn's Pilgrim
Dave
Archon of Justice
Stoneforge Mystic
Mother of Runes
Swords to Plowshares
Reveillark
Eternal Dragon
Elesh Norn, Grand Cenobite
Bribery
Draining Whelk
Glen Elendra Archmage
Fact or Fiction
Mana Leak
Blue Sun's Zenith
Treasure Mage
Trinket Mage
Pestermite
Capsize
Jace, the Mind Sculptor
Sower of Temptation
Thirst for Knowledge
Forbid
Bitterblossom
Nantuko Shade
Ob Nixilis, the Fallen
Oona's Prowler
Puppeteer Clique
Ancient Grudge
Kuldotha Pheonix
Slagstorm
Siege-Gang Commander
Wildfire
Indrik Stomphowler
Arbor Elf
Cloudthresher
Ice Storm
Wood Elves
Primal Command (Chinese)
Oracle of Mul Daya
Rofellos, Llanowar Emissary
Woodfall Primus
Loxodon Hierarch
Lightning Helix
Niv-Mizzet, the Firemind
Trygon Predator
Stillmoon Cavalier
Azorius Guildmage
Broodmate Dragon
Murderous Redcap
Firespout
Loxodon Hierarch
Indrik Stomphowler
Pernicious Deed
Voidslime
Broodmate Dragon
Epochrasite
Dimir Signet
Sword of Fire and Ice
Sword of Feast and Famine
Tangle Wire
Sol Ring
Umezawa's Jitte
Artisan of Kozilek
Oblivion Stone
Dimir Aqueduct
Arcane Sanctum
Temple Garden
Hallowed Fountain
Breeding Pool
Windswept Heath
Polluted Delta
Wooded Foothills
Bloodstained Mire
Flooded Strand
Scalding Tarn
Tropical Island
Savannah
Gemstone Mine
Opposition
Sarkhan the Mad
Future Sight