The Ur-Dragon leads a five-color Dragon tribal deck. It stacks cost reducers and fixing so its expensive Dragons arrive early, then attacks with flyers so the Ur-Dragon's attack trigger draws a card per attacking Dragon and drops a free permanent from hand. Enter-the-battlefield damage, token copies and attack-trigger Dragons turn each new Dragon into more value, more bodies and more damage, so the board snowballs quickly. How it wins: It wins by overwhelming opponents with an escalating air force of Dragons and Dragon tokens, backed by burn whenever a Dragon enters, with Miirym, Bladewing and Terror of the Peaks as an infinite-damage loop, Dragon Tempest with Ancient Gold Dragon's token burst, and Call the Spirit Dragons as alternate finishers. Key roles: - Dragon cost reduction and fixing: Stacked discounts and Dragon-only mana sources cut the five-color, high-curve Dragons down to castable sizes and make all-colors-required cards playable, alongside the commander's eminence discount. (Dragonspeaker Shaman, Urza's Incubator, Morophon, the Boundless) - Attack-trigger engine: The commander and other Dragons reward attacking by drawing cards, cheating permanents into play, making mana or Treasure, and creating more Dragons mid-combat, with haste enablers to swing right away. (Klauth, Unrivaled Ancient, Utvara Hellkite, Temur Ascendancy) - Enter-the-battlefield punishment: Each Dragon that enters deals damage scaled to the board or to its own power, and doubling effects turn a flood of tokens into lethal burn. (Terror of the Peaks, Scourge of Valkas, Dragon Tempest) - Token copies and recursion: Copying nontoken Dragons, adding token Dragons, and recasting or reanimating Dragons from the graveyard multiply every arrival, and this package is what forms the infinite loop. (Miirym, Sentinel Wyrm, Bladewing the Risen, Lathliss, Dragon Queen) - Dragon tutoring and cheating: Searches and dig effects fetch specific Dragons or put them straight onto the battlefield, refilling threats and assembling combos. (Tiamat, Ureni of the Unwritten, Sarkhan's Triumph) - Combat finishers and board control: Double strike, -1/-1 sweeps and combat-damage punishers end games once the air force connects, while a one-sided Dragon-safe wipe clears blockers. (Atarka, World Render, Silumgar, the Drifting Death, Crux of Fate)

The Ur-Dragon decklist

• Arcane Signet
• Chromatic Lantern
• Dragon's Hoard
• Fellwar Stone
• Herald's Horn
• Lightning Greaves
• Mox Jasper
• Sol Ring
• Urza's Incubator
• Arid Mesa
• Blood Crypt
• Bloodstained Mire
• Breeding Pool
• Cavern of Souls
• Command Tower
• Exotic Orchard
• 2× Forest
• Haven of the Spirit Dragon
• 2× Island
• Jetmir's Garden
• Ketria Triome
• Maelstrom of the Spirit Dragon
• Misty Rainforest
• 2× Mountain
• Overgrown Tomb
• Path of Ancestry
• 2× Plains
• Sacred Foundry
• Scalding Tarn
• Secluded Courtyard
• Steam Vents
• Stomping Ground
• 2× Swamp
• Temple Garden
• The World Tree
• Unclaimed Territory
• Verdant Catacombs
• Windswept Heath
• Wooded Foothills
• Ziatora's Proving Ground
• Ancient Copper Dragon
• Ancient Gold Dragon
• Ancient Silver Dragon
• Atarka, World Render
• Balefire Dragon
• Birds of Paradise
• Bladewing the Risen
• Dragonlord Dromoka
• Dragonlord's Servant
• Dragonspeaker Shaman
• Goldspan Dragon
• Hellkite Courser
• Klauth, Unrivaled Ancient
• Lathliss, Dragon Queen
• Miirym, Sentinel Wyrm
• Morophon, the Boundless
• Old Gnawbone
• Ramos, Dragon Engine
• Rith, Liberated Primeval
• Rivaz of the Claw
• Sarkhan, Soul Aflame
• Savage Ventmaw
• Scalelord Reckoner
• Scourge of Valkas
• Silumgar, the Drifting Death
• Terror of the Peaks
• Tiamat
• Twinflame Tyrant
• Two-Headed Hellkite
• Ureni of the Unwritten
• Utvara Hellkite
• Call the Spirit Dragons
• Dracogenesis
• Dragon Tempest
• Garruk's Uprising
• Rhystic Study
• Rhythm of the Wild
• Smothering Tithe
• Temur Ascendancy
• Counterspell
• Cyclonic Rift
• Heroic Intervention
• Path to Exile
• Sarkhan's Triumph
• Swords to Plowshares
• Teferi's Protection
• Sarkhan Unbroken
• Crux of Fate
• Cultivate
• Demonic Tutor
• Farseek
• Kodama's Reach
• Nature's Lore
• Swamp