They adjust the environment exactly so that they can field test how the players are going to respond to it

Abian, Luvion Usurper (playtest) Abzan Charm Aeon Chronicler Ambition's Cost Ancestral Recall Ancient Craving Baba Lysaga, Night Witch Bag of Devouring Bandit's Talent Battle Angels of Tyr Battle of Frost and Fire Bewildering Blizzard Blood Fountain Carnival Elephant Meteor Cathartic Pyre Chandra, Flame's Catalyst Chandra, Flamecaller Cipherbound Spirit Cling to Dust Colossus of the Blood Age Commodore Guff Contact Other Plane Cryptex Cult of Skaro Cut of the Profits Damocles Base, Sword of Kang Darkblast Does Machines Dreamstone Hedron Dungeon of the Mad Mage Electric Revelation Elminster Fast // Furious Fast // Furious Fathom Seer Feed the Infection Felothar the Steadfast Fiery Gambit Fugitive Codebreaker Garruk, Primal Hunter Goliath Hatchery Greater Mossdog Hulldrifter Hunter's Prowess Illuminate History Imskir Iron-Eater Inga Rune-Eyes Inspired Idea Inspired Sphinx Inspiring Refrain Interpret the Signs Into the Story Jace, the Living Guildpact Jace, the Perfected Mind Jin-Gitaxias Joshua, Phoenix's Dominant Jushi Apprentice Jushi Apprentice Kaya, Intangible Slayer Kefnet the Mindful Keruga, the Macrosage Kozilek, the Broken Reality Laughing Mad Leaves from the Vine Leonardo da Vinci Life from the Loam Liliana's Other Contract (double-faced)(playtest) Loopy Lobster (playtest) Loot, the Pathfinder Lord Windgrace Lord of Change Lorehold Command

The Leaders released in OP03 include: Portgas D
Oh yes, Monkeys
in 20% of packs youll also find a Traditional Foil Land card (which may even feature a Full-Art Western Landscape) Duskmourn: House of Horror Duskmourn: House of Horror play boosters is a solid draft environment with cool mechanics that gel pretty well with long-game payoffs balanced with fresh aggro toys