Go-Shintai of Life's Origin
There and Back Again
Clock of Omens
Contagion Engine
Encroaching Mycosynth

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield.
Go-Shintai does not have summoning sickness. There and Back Again has exactly two lore counters on it.
4 if you don't control a Smaug token available

   Steps

How does this combo work?
1
At the beginning of your precombat main phase, There and Back Again triggers, putting a lore counter on it.
2
There and Back Again's third chapter ability triggers, creating a legendary 6/6 Smaug creature token and causing you to sacrifice There and Back Again.
3
If you control two Smaugs, put one into your graveyard due to the legend rule.
4
If you do, the Smaug that died triggers, creating fourteen Treasure tokens.
5
If you made Treasures this way, activate nine Treasures by tapping and sacrificing them, adding 4.
6
Activate Go-Shintai by paying and tapping it, returning There and Back Again from your graveyard to the battlefield with a lore counter on it.
7
There and Back Again's first chapter ability triggers, causing the Ring to tempt you.
8
Activate Contagion Engine by paying 4 and tapping it, putting two lore counters on There and Back Again.
9
There and Back Again's second and third chapter abilities trigger.
10
Holding priority, activate Clock of Omens twice by tapping four artifacts, untapping Contagion Engine and Go-Shintai.
11
Resolve the second There and Back Again trigger, causing you to search your library for a Mountain and put it onto the battlefield.
12
Resolve the third There and Back Again trigger, creating a legendary 6/6 Smaug creature token and causing you to sacrifice There and Back Again.
13
Repeat from step 3.

   Results

What do I get from this combo?
Infinite colored mana
Infinite death triggers
Infinite ETB
Infinite LTB
Infinite proliferate
Infinite Treasure tokens
Put all Mountains from your library onto the battlefield
Infinite mana nonland permanents you control can produce
Infinite untap of nonland permanents you control
Go-Shintai of Life's Origin
0.01% of 16300 decks 1 decks
Creatures
District Guide
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Auratog
100% of 1 decks +100% synergy
Gatecreeper Vine
100% of 1 decks +98% synergy
Faith Healer
100% of 1 decks +100% synergy
Jegantha, the Wellspring
100% of 1 decks +94% synergy
Ajani's Chosen
100% of 1 decks +100% synergy
Phantatog
100% of 1 decks +100% synergy
Moritte of the Frost
100% of 1 decks +99% synergy
Go-Shintai of Shared Purpose
100% of 1 decks +96% synergy
Go-Shintai of Ancient Wars
100% of 1 decks +96% synergy
Go-Shintai of Hidden Cruelty
100% of 1 decks +96% synergy
Weaver of Harmony
100% of 1 decks +94% synergy
Go-Shintai of Boundless Vigor
100% of 1 decks +96% synergy
Kura, the Boundless Sky
100% of 1 decks +99% synergy
Go-Shintai of Lost Wisdom
100% of 1 decks +96% synergy
Ondu Spiritdancer
100% of 1 decks +98% synergy
Ojer Kaslem, Deepest Growth
100% of 1 decks +99% synergy
Uro, Titan of Nature's Wrath
100% of 1 decks +99% synergy
Ulvenwald Hydra
100% of 1 decks +100% synergy
Archon of Sun's Grace
100% of 1 decks +97% synergy
Lotus Cobra
100% of 1 decks +98% synergy
Tireless Provisioner
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Bloom Tender
100% of 1 decks +83% synergy
Biovisionary
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Dryad of the Ilysian Grove
100% of 1 decks +87% synergy
Faeburrow Elder
100% of 1 decks +80% synergy
Sanctum Weaver
100% of 1 decks +90% synergy
Nine-Fingers Keene
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Instants
Realms Uncharted
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Pact of Negation
100% of 1 decks +95% synergy
Archdruid's Charm
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Sorceries
Wargate
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Pir's Whim
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Gates Ablaze
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Open the Gates
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Reap and Sow
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Nylea's Intervention
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Mythos of Illuna
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Explore the Underdark
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March from Velis Vel
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Hour of Promise
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Sylvan Scrying
100% of 1 decks +96% synergy
Circuitous Route
100% of 1 decks +94% synergy
Rite of Replication
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Utility Artifacts
Staff of Domination
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Amulet of Vigor
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Bootleggers' Stash
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Navigation Orb
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Phyrexian Altar
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Cloudstone Curio
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Expedition Map
100% of 1 decks +96% synergy
Enchantments
Revel in Riches
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Sanctum of Calm Waters
100% of 1 decks +96% synergy
Sanctum of All
100% of 1 decks +96% synergy
Sanctum of Tranquil Light
100% of 1 decks +96% synergy
Sanctum of Fruitful Harvest
100% of 1 decks +96% synergy
Sanctum of Stone Fangs
100% of 1 decks +96% synergy
Sanctum of Shattered Heights
100% of 1 decks +96% synergy
Honden of Life's Web
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Honden of Cleansing Fire
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Honden of Night's Reach
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Honden of Seeing Winds
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Honden of Infinite Rage
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Guild Summit
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Pemmin's Aura
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Second Chance
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Enchanted Evening
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Intruder Alarm
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Omenpath Journey
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Freed from the Real
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Utility Lands
Thran Portal
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The Black Gate
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Basilisk Gate
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Baldur's Gate
100% of 1 decks +94% synergy
Maze's End
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Lands
Gruul Guildgate
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Azorius Guildgate
100% of 1 decks +93% synergy
Orzhov Guildgate
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Boros Guildgate
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Dimir Guildgate
100% of 1 decks +94% synergy
Golgari Guildgate
100% of 1 decks +93% synergy
Izzet Guildgate
100% of 1 decks +94% synergy
Selesnya Guildgate
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Gateway Plaza
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Rakdos Guildgate
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Gond Gate
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Heap Gate
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Sea Gate
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Manor Gate
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Cliffgate
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Citadel Gate
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Black Dragon Gate
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Planar Nexus
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Talon Gates of Madara
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Simic Guildgate
100% of 1 decks +93% synergy