Despite the technicality, remember that the Legendary Collection's reverse holos usually command a higher premium
Secret Lairs are often discussed by hobbyist in terms of individual card value, as purchasing singles is almost always the best way to spend money on MTG

Mirror Mastery Commander (1) Planeswalker (1) Creature (24) thersnipe Animar, Soul of Elements Artisan of Kozilek Avatar of Fury Baloth Woodcrasher Chartooth Cougar Conundrum Sphinx Deadwood Treefolk Edric, Spymaster of Trest Elvish Aberration Faultgrinder Fierce Empath Hydra Omnivore Intet, the Dreamer Krosan Tusker Magmatic Force Magus of the Vineyard Nucklavee Rapacious One Simic Sky Swallower Spitebellows Trench Gorger Valley Rannet Veteran Explorer Instant (9) Brainstorm Tribute to the Wild Colossal Might Invigorate Spell Crumple Electrolyze Ray of Command Prophetic Bolt Hunting Pack Sorcery (13) Collective Voyage Hull Breach Cultivate Kodama's Reach Firespout Ruination Explosive Vegetation Chain Reaction Death by Dragons Vengeful Rebirth Disaster Radius Call the Skybreaker Savage Twister Enchantment (3) Vow of Flight Vow of Lightning Vow of Wildness Artifact (6) Sol Ring Armillary Sphere Gruul Signet Izzet Signet Lightning Greaves Prophetic Prism Land (41) Command Tower Evolving Wilds Forest x13 Fungal Reaches Gruul Turf Homeward Path Island x7 Izzet Boilerworks Kazandu Refuge Mountain x8 Rupture Spire Simic Growth Chamber Temple of the False God Vivid Crag Vivid Creek Vivid Grove Commanders, Themes, and Strategy Mirror Mastery is the Temur deck and does classic Temur things like duplicate spells and cast big creatures

These copies feature exclusive artwork by Dan Frazier, the mox guy that players can't find anywhere else
If you see a population number tied to a distribution of any card, its best to see that number as a rough minimum not as a maximum
As an added bonus, you can use Sunder at your opponent's end of turn, possibly forcing him to discard some cards