1 The Ur-Dragon
Sideboard:
1 Academy Rector
1 Ancient Brass Dragon
1 Ancient Bronze Dragon
1 Ancient Copper Dragon
1 Ancient Gold Dragon
1 Ancient Silver Dragon
1 Arcane Signet
1 Balefire Dragon
1 Beledros Witherbloom
1 Birds of Paradise
1 Blood Crypt
1 Bloodstained Mire
1 Breeding Pool
1 Burgeoning
1 Cavern of Souls
1 Chromatic Orrery
1 Chrome Mox
1 City of Brass
1 Command Beacon
1 Command Tower
1 Cyclonic Rift
1 Dark Ritual
1 Defense of the Heart
1 Demonic Tutor
1 Dracogenesis
1 Dragon Tempest
1 Dragonlord Dromoka
1 Earthquake Dragon
1 Enlightened Tutor
1 Esper Sentinel
1 Exotic Orchard
1 Exploration
1 Fierce Guardianship
1 Filigree Sages
1 Force of Negation
1 Force of Will
1 Ganax, Astral Hunter
1 Godless Shrine
1 Goldspan Dragon
1 Grim Tutor
1 Hallowed Fountain
1 Hellkite Courser
1 Hellkite Tyrant
1 Ignoble Hierarch
1 Jetmir's Garden
1 Ketria Triome
1 Klauth, Unrivaled Ancient
1 Lotus Petal
1 Maelstrom of the Spirit Dragon
1 Magda, Brazen Outlaw
1 Mana Confluence
1 Mana Drain
1 Mana Vault
1 Marsh Flats
1 Miirym, Sentinel Wyrm
1 Mistrise Village
1 Morophon, the Boundless
1 Mox Jasper
1 Noble Hierarch
1 Old Gnawbone
1 Omniscience
1 Overgrown Tomb
1 Pact of Negation
1 Reflecting Pool
1 Rhystic Study
1 Sacred Foundry
1 Scalding Tarn
1 Scaled Nurturer
1 Scion of the Ur-Dragon
1 Scourge of Valkas
1 Show and Tell
1 Smothering Tithe
1 Sneak Attack
1 Sol Ring
1 Spara's Headquarters
1 Steam Vents
1 Stomping Ground
1 Sylvan Library
1 Tainted Strike
1 Teferi's Protection
1 Temple Garden
1 Terror of the Peaks
1 The Great Henge
1 Tiamat
1 Time Sieve
1 Timeless Lotus
1 Twinflame Tyrant
1 Ureni of the Unwritten
1 Urza's Incubator
1 Urza's Saga
1 Utvara Hellkite
1 Vampiric Tutor
1 Verdant Catacombs
1 Watery Grave
1 Wooded Foothills
1 Worldly Tutor
1 Xander's Lounge
1 Ziatora's Proving Ground