Ugin's Nexus + Tamiyo's Compleation + Mechanized Production

Ugin's Nexus
Tamiyo's Compleation
Mechanized Production

Requires
Ugin's Nexus must be on the battlefield. Tamiyo's Compleation must be on the battlefield. Mechanized Production must be on the battlefield. Tamiyo's Compleation and Mechanized Production both attached to Ugin's Nexus.
Steps
  1. At the beginning of your upkeep, Mechanized Production triggers, creating a token copy of Ugin's Nexus.
  2. The token copy of Ugin's Nexus is put into exile as a state based action due to the legend rule, causing you to take an extra turn after this one.
  3. Move to your next turn.
  4. Repeat.
Results
Infinite turns.

Tawnos, Solemn Survivor
0.11% of 896 decks 1 decks
Jacob Hauken, Inspector
0.09% of 1158 decks 1 decks
Arcum Dagsson
0.08% of 1268 decks 1 decks
Dynaheir, Invoker Adept
0.07% of 1388 decks 1 decks
Kruphix, God of Horizons
0.07% of 3074 decks 2 decks
Lara Croft, Tomb Raider
0.05% of 2188 decks 1 decks
Morska, Undersea Sleuth
0.02% of 4043 decks 1 decks
Mirko, Obsessive Theorist
0.02% of 4561 decks 1 decks
Urtet, Remnant of Memnarch
0.01% of 12841 decks 1 decks
Urza, Chief Artificer
0.01% of 13534 decks 1 decks
Muldrotha, the Gravetide
0.01% of 14788 decks 1 decks
High Synergy Cards
Ancient Den
100% of 5 decks +97% synergy
Fabricate
75% of 12 decks +72% synergy
Top Cards
Swords to Plowshares
80% of 5 decks +51% synergy
Artificer Class
58% of 12 decks +58% synergy
Counterspell
50% of 12 decks +29% synergy
Etherium Sculptor
42% of 12 decks +39% synergy
Swiftfoot Boots
42% of 12 decks +14% synergy
Urza, Lord High Artificer
33% of 12 decks +32% synergy
Emry, Lurker of the Loch
33% of 12 decks +31% synergy
Myr Battlesphere
33% of 12 decks +31% synergy
Unwinding Clock
33% of 12 decks +31% synergy
Foundry Inspector
33% of 12 decks +29% synergy
Creatures
Timestream Navigator
25% of 12 decks +25% synergy
Jin-Gitaxias, Progress Tyrant
25% of 12 decks +23% synergy
The Reality Chip
25% of 12 decks +23% synergy
Instants
Dispatch
60% of 5 decks +58% synergy
Enlightened Tutor
60% of 5 decks +52% synergy
Negate
33% of 12 decks +22% synergy
Cyclonic Rift
25% of 12 decks +11% synergy
Sorceries
Organic Extinction
60% of 5 decks +59% synergy
Demonic Tutor
60% of 5 decks +48% synergy
Cultivate
50% of 6 decks +28% synergy
Time Warp
25% of 12 decks +24% synergy
Ravenform
25% of 12 decks +23% synergy
Utility Artifacts
Time Sieve
60% of 5 decks +59% synergy
Encroaching Mycosynth
30% of 10 decks +29% synergy
Mindslaver
25% of 12 decks +25% synergy
Tamiyo's Journal
25% of 12 decks +24% synergy
Darksteel Forge
25% of 12 decks +24% synergy
Lightning Greaves
25% of 12 decks -0% synergy
Enchantments
Rhystic Study
33% of 12 decks +20% synergy
Mirrodin Besieged
25% of 12 decks +24% synergy
Planeswalkers
Karn, the Great Creator
25% of 12 decks +24% synergy
Utility Lands
Vault of Whispers
60% of 5 decks +58% synergy
Academy Ruins
50% of 12 decks +48% synergy
Seat of the Synod
50% of 12 decks +47% synergy
Inventors' Fair
42% of 12 decks +38% synergy
Darksteel Citadel
42% of 12 decks +38% synergy
Buried Ruin
33% of 12 decks +28% synergy
Otawara, Soaring City
33% of 12 decks +25% synergy
Minamo, School at Water's Edge
25% of 12 decks +23% synergy
Mystic Sanctuary
25% of 12 decks +19% synergy
Urza's Saga
25% of 12 decks +18% synergy
Reliquary Tower
25% of 12 decks -4% synergy
Mana Artifacts
Sol Ring
92% of 12 decks +7% synergy
Arcane Signet
67% of 12 decks -5% synergy
Simic Signet
50% of 6 decks +47% synergy
Mox Opal
25% of 12 decks +21% synergy
Lands
Goldmire Bridge
100% of 3 decks +99% synergy
Razortide Bridge
80% of 5 decks +78% synergy
Command Tower
67% of 12 decks -7% synergy
Yavimaya Coast
67% of 6 decks +61% synergy
Mistvault Bridge
60% of 5 decks +59% synergy
Hallowed Fountain
60% of 5 decks +51% synergy
Watery Grave
60% of 5 decks +50% synergy
Glimmervoid
25% of 12 decks +25% synergy
Exotic Orchard
25% of 12 decks -10% synergy