Creature - Beast Mutant Hide in Plain Sight Look at the top five cards of your library, cloak two of them, and put the rest on the bottom of your library in a random order
Add in its innate haste for vehicles and you've got a nasty brew going

Cards Added Anger Anje, Maid of Dishonor Basilisk Collar Bedevil Bojuka Bog Costly Plunder Cranial Plating Cryptolith Fragment Drana, Liberator of Malakir Falkenrath Forebear Florian, Voldaren Scion Ghirapur Aether Grid Goldvein Pick Grim Hireling Inspiring Statuary Leechridden Swamp Malakir Rebirth Marionette Master Nighthawk Scavenger Nullpriest of Oblivion Olivia Voldaren Olivias Attendants Patriarchs Bidding Reckless Fireweaver Retreat to Hagra Sanctum of Stone Fangs Squee, Goblin Nabob Unexpected Windfall Vampire Socialite Victim of Night Vito, Thorn of the Dusk Rose Voldaren Bloodcaster Zagras, Thief of Heartbeats Cards Removed Anjes Ravager Anowon, the Ruin Sage Avacyns Judgment Bloodlord of Vaasgoth Bloodtithe Harvester Charcoal Diamond Commanders Sphere Crimson Honor Guard Damnable Pact Dark Impostor Falkenrath Gorger Fire Diamond Glass-Cast Heart Imposing Grandeur Indulgent Aristocrat Kamber, the Plunderer Laurine, the Diversion Midnight Arsonist Mob Rule Molten Echoes 1 Mountain Predators Hour Rakish Heir Shadowgrange Archfiend Stromkirk Condemned Stromkirk Occultist 2 Swamp Temple of the False God Underworld Connections Unstable Obelisk Urge to Feed Vampiric Dragon Most of these cuts are cards that are either a little slow, or dont do enough for our overall strategy

Avacyn does cost a lot of mana to cast, so it'll take a bit to get enough mana to cast it, but once you do, it'll be hard to ever get rid of
For some people, cards are investments to store like casks of wine