Gogo is a mono-blue mana engine that ramps hard through artifacts, untappers and activated-ability-only mana, then turns that mana into multiplied value with its copy ability. Gogo copies activated or triggered abilities X times, which turns many effects into overwhelming advantage: fetchland and Wayfarer's Bauble activations that thin the deck into a pile of Islands, untap abilities, card draw engines, upkeep triggers, and extra-turn-like phases. A big fetch-and-untap land package feeds Islands for High Tide, Caged Sun, Waterbending Scroll and Spectral Deluge. Untappers and haste enablers let Gogo and the mana creatures fire repeatedly. How it wins: It generates huge amounts of mana and cards, then wins through Mechanized Production copying an artifact (assembling a legendary-proof board via James's investigate clues), The Millennium Calendar doubled out by copied activations, or an overwhelming board of flyers behind countermagic and bounce. Key roles: - Ability-only mana and ramp: Rocks and creatures make mana restricted to activations, which is exactly what Gogo's {X}{X} and the other engines need, while cost reducers stretch it further (Omen Hawker, The Enigma Jewel // Locus of Enlightenment, Training Grounds) - Land fetch multiplication: Fetchlands, panoramas and land tutors are activated or triggered abilities that Gogo copies into multiple Islands at once, then Island-count cards and land untaps cash them in (Myriad Landscape, Wayfarer's Bauble, Peregrine Drake) - Untap engines: Untappers and mass-untap effects reset Gogo, mana rocks and draw artifacts for repeated copied activations, and can loop into enormous mana (Dramatic Reversal, Ioreth of the Healing House, Unstoppable Plan) - Extra beginning phases and upkeep triggers: Additional untap and upkeep steps double mana, Calendar counters and Mechanized Production copies, and Gogo can copy those triggers too (Sphinx of the Second Sun, Shadow of the Second Sun, The Millennium Calendar) - Copy-based alternate wins: Mechanized Production stacks artifact copies toward eight, fed by James's clues, while the Calendar race is pushed by copied doublings (Mechanized Production, James, Wandering Dad // Follow Him, The Millennium Calendar) - Interaction and flash control: Counterspells that refund mana, bounce and spot removal protect the engine, with flash enablers letting the deck hold mana up (Mana Drain, Cyclonic Rift, High Fae Trickster)

Gogo, Master of Mimicry decklist

• Arcane Signet
• Basalt Monolith
• Caged Sun
• Fellwar Stone
• Insight Engine
• Lightning Greaves
• Midnight Clock
• Mind Stone
• Sapphire Medallion
• Sol Ring
• Swiftfoot Boots
• The Enigma Jewel // Locus of Enlightenment
• The Millennium Calendar
• Thought Vessel
• Thousand-Year Elixir
• Waterbending Scroll
• Wayfarer's Bauble
• Bant Panorama
• Brokers Hideout
• Escape Tunnel
• Esper Panorama
• Evolving Wilds
• Fabled Passage
• Flooded Strand
• Grixis Panorama
• 14× Island
• Misty Rainforest
• Myriad Landscape
• Mystic Sanctuary
• Polluted Delta
• Reliquary Tower
• Terramorphic Expanse
• Vibrant Cityscape
• Aboleth Spawn
• Aphetto Alchemist
• Arcanis the Omnipotent
• Benthic Anomaly
• Dreamscape Artist
• High Fae Trickster
• Hullbreaker Horror
• Ioreth of the Healing House
• James, Wandering Dad // Follow Him
• Lyra, Tolarian Archangel
• Malcolm, Alluring Scoundrel
• Marvin, Murderous Mimic
• Myojin of Cryptic Dreams
• Omen Hawker
• Peregrine Drake
• Pit Automaton
• Solemn Simulacrum
• Sphinx of False Conclusions
• Sphinx of the Second Sun
• Vizier of Tumbling Sands
• Mechanized Production
• Mystic Remora
• Propaganda
• Shadow of the Second Sun
• Training Grounds
• Unstoppable Plan
• Aetherize
• An Offer You Can't Refuse
• Arcane Denial
• Borne Upon a Wind
• Counterspell
• Cyclonic Rift
• Dramatic Reversal
• High Tide
• Mana Drain
• Mana Sculpt
• Pongify
• Rapid Hybridization
• Reality Shift
• Sink into Stupor // Soporific Springs
• Swan Song
• Fabricate
• Reshape
• Spectral Deluge
• Windfall
• Sea Gate Restoration // Sea Gate, Reborn
• Glasspool Mimic // Glasspool Shore
• Hydroelectric Specimen // Hydroelectric Laboratory
• Silundi Vision
• Obscura Storefront
• Maestros Theater
• Scalding Tarn
• Prismatic Vista