Because Wizards has a major problem in this area, something that I've talked about before and has been widely known and discussed for years

Arcane Maelstrom Commander (1) Planeswalker (1) Creatures (21) Nascent Metamorph Dualcaster Mage Glademuse Haldan, Avid Arcanist Crackling Drake Eon Frolicker Lunar Mystic Murmuring Mystic Niblis of Frost Rashmi, Eternities Crafter Solemn Simulacrum Talrand, Sky Summoner Goblin Dark-Dwellers Pako, Arcane Retriever Xyris, the Writhing Storm Charmbreaker Devils Etali, Primal Storm Melek, Izzet Paragon Wort, the Raidmother Djinn Illuminatus Ravenous Gigantotherium Instants (24) Crop Rotation Artifact Mutation Comet Storm Commune with Lava Evolution Charm Starstorm Strength of the Tajuru Tribute to the Wild Chaos Warp Decoy Gambit Deflecting Swat Frantic Search Harrow Hunter's Insight Natural Connection Temur Charm Channeled Force Chemister's Insight Curious Herd Slice in Twain Clash of Titans Prophetic Bolt Whiplash Trap Hunting Pack Sorcery (1) Enchantments (6) Primal Empathy Psychic Impetus Shiny Impetus Wilderness Reclamation Predatory Impetus Swarm Intelligence Artifacts (7) Sol Ring Arcane Signet Lightning Greaves Bonder's Ornament Commander's Sphere Twinning Staff Lavabrink Floodgates Lands (38) Cinder Glade Command Tower Desolate Lighthouse Exotic Orchard Frontier Bivouac Gruul Turf Halimar Depths Izzet Boilerworks Kessig Wolf Run Mossfire Valley Mosswort Bridge Myriad Landscape Oran-Rief, the Vastwood Rugged Highlands Rupture Spire Scavenger Grounds Simic Growth Chamber Swiftwater Cliffs Thornwood Falls Yavimaya Coast Forest x8 Island x5 Mountain x5 Commander, Theme, and Strategy Kalamax loves a good storm, and what better way to create a storm than with instants

But there is also a lot of confusion
2) Elesh Norn, Mother of Machines Step and Compleat $147 Most versions of Elesh Norn hold some value, but this one is very special
Allowing you to return an artifact, creature, enchantment, or planeswalker to its owners hand, this Legendary Land doubles up as a useful piece of removal
If you've never heard of this card before, that'll probably be because it was part of The Big Score: that strange collection of cards tacked onto Outlaws of Thunder Junction after Wizards of the Coast discovered what a disaster Epilogue Booster packs truly were, and excised them from all future MTG sets