Blue decks tend to be slow and patient, gradually building up card advantage and other resources until they're ready for the endgame, which is perfect for a midrange-oriented, moderately powerful format like Commander
Symmetry Matrix is a much more subtle card, as we have to plan out how we spend our mana
Even beyond the dual lands, Wizards could spend the next several years making piles of money selling foil Mox Diamonds, Moats, Gaea's Cradles, and Mishra's Workshops, and these are only the most expensive of the Reserved List cards
14 The Eighth Doctor As soon as The Eighth Doctor enters the battlefield, you get to mill three cards, kickstarting his primary ability
This does apply to reprint sets like Double Masters, as well as combination sets like Commander Legends