Playtest, a Lot Before the unreleased cards even have official art, play-testers are using them in a dedicated room, called the Pokemon Card Game Laboratory or, simply, the play testing room in the Creatures, Inc
If you do, you may choose new targets for the copy
I often find valuable cards, including Reserved List cards, in bulk boxes from sets before Exodus
It's one of the reasons why the first slate of dual lands is so expensive, and why other mana-only entries can be pricey as well
Sketches, notes, and observations found in an explorers personal journal inspired the glimmers on the cards

Release date: 2010-06-17 A Display of My Dark Power Agony Warp All Shall Smolder in My Wake All in Good Time Approach My Molten Realm Architects of Will Armadillo Cloak Artisan of Kozilek Avatar of Discord Avatar of Woe Azorius Signet Barren Moor Battering Craghorn Batwing Brume Beacon of Unrest Behold the Power of Destruction Bituminous Blast Bog Witch Branching Bolt Breath of Darigaaz Cemetery Reaper Chameleon Colossus Chandra's Outrage Choose Your Champion Colossal Might Corpse Connoisseur Dance, Pathetic Marionette Dimir Signet Dragon Breath Dragon Fodder Dragon Whelp Dragonspeaker Shaman Dreamstone Hedron Dregscape Zombie Duplicant Embrace My Diabolical Vision Ethersworn Shieldmage Everflowing Chalice Every Hope Shall Vanish Every Last Vestige Shall Rot Evil Comes to Fruition Extractor Demon Feed the Machine Feral Hydra Fertilid Festering Goblin Fieldmist Borderpost Fierce Empath Fireball Fires of Yavimaya Flameblast Dragon Fog Forest Forgotten Ancient Furnace Whelp Gathan Raiders Gleeful Sabotage Graypelt Refuge Gruul Signet Harmonize Hellkite Charger Heroes' Reunion Hunting Moa I Bask in Your Silent Awe I Call on the Ancient Magics I Delight in Your Convulsions I Know All, I See All Ignite the Cloneforge
