[-11]: Search your library for any number of colorless nonland cards, exile them, then Shuffle
Scarcity is the first reason and buyers who are willing to spend big bucks on collectibles are looking for trading cards in limited supply
We cannot fail to mention the enormous flexibility when building a deck around Yamato
For better or worse, tastes change as new preconstructed decks are revealed, so usually these spikes dont last
Further Upgrades There are still tons of cards you can add to the deck to make it better: Delayed Blast Fireball, Blasphemous Act, Chandra's Ignition, The Meathook Massacre Removal: Jeska's Will, Birgi, God of Storytelling, Urabrask, Dockside Extortionist, Seething Song, Talisman of Indulgence, Mana Crypt, Jeweled Lotus Ramp: Mayhem Devil Pingers: Passionate Archaeologist, Seize the Day Big Damage: Lightning Greaves, Deflecting Swat, Malakir Rebirth, Tibalt's Trickery Protection: Demonic Tutor, Vampiric Tutor Tutors: Urborg, Tomb of Yawgmoth, Leechridden Swamp, Ancient Tomb, Takenuma, Abandoned Mire, Blood Crypt, Luxury Suite, Sulfurous Springs, Bloodstained Mire, Haunted Ridge Lands: Next Week: Narset