INN, DKA, AVR, SOI, and EMN plus a few themed cards.

Mythics: Decimator of the Provinces, Emrakul, the Promised End, Grimoire of the Dead, Elbrus, the Binding Blade, Arlinn Kord, Drogskol Reaver, Falkenrath Aristocrat, Geist of Saint Traft, Gisa and Geralf, Gisela, Blade of Goldnight, Grim Flayer, Grimgrin, Corpse-Born, Havengul Lich, Huntmaster of the Fells, Ishkanah, Grafwidow, Nahiri, the Harbinger, Olivia, Mobilized for War, Olivia Voldaren, Sigarda, Heron’s Grace, Sigarda, Host of Herons, Sorin, Grim Nemesis, Sorin, Lord of Innistrad, The Gitrog Monster, Ulrich of the Krallenhorde, Army of the Damned, Ghoulcaller Gisa, Griselbrand, Liliana, the Last Hope, Mikaeus, the Unhallowed, Mindwrack Demon, Reaper from the Abyss, Relentless Dead, Tree of Perdition, Angelic Overseer, Descend Upon the Sinful, Entreat the Angels, Gisela, the Broken Blade, Mikaeus, the Lunarch, Archangel Avacyn, Geralf’s Masterpiece, Jace, Unraveler of Secrets, Mirror-Mad Phantasm, Startled Awake, Stitcher Geralf, Tamiyo, the Moon Sage, Skaab Ruinator, Bonfire of the Damned, Goldnight Castigator, Mirrorwing Dragon, Nahiri’s Wrath, Tibalt, the Fiend-Blooded, Wolf of Devil’s Breach, Craterhoof Behemoth, Essence of the Wild, Tree of Redemption, Ulvenwald Hydra, Vorapede, Garruk Relentless, Bruna, the Fading Light, Ludevic, Necro-Alchemist, Elder Deep-Fiend, Dungeon Geists, Terminus, Mayor of Avabruck, Soul of the Harvest, Blasphemous Act, Devil’s Play, Vexing Devil, Helvault, Gavony Township, Kessig Wolf Run, Increasing Devotion

1 "Mythic" per pack, 4 "Rares" per pack, everything else distributed in 10s or so.