Goblin Welder
Retreat to Coralhelm
Darksteel Citadel
Ancient Den

   Prerequisites

What do I need to start this combo?
Darksteel Citadel in your graveyard.
All other permanents on the battlefield.
Goblin Welder does not have summoning sickness.

   Steps

How does this combo work?
1
Activate Goblin Welder by tapping it, causing you to sacrifice Ancient Den and return Darksteel Citadel from your graveyard to the battlefield.
2
Darksteel Citadel enters the battlefield, triggering Retreat to Coralhelm, untapping Goblin Welder.
3
Activate Darksteel Citadel by tapping it, adding .
4
Activate Goblin Welder by tapping it, causing you to sacrifice Darksteel Citadel and return Ancient Den from your graveyard to the battlefield.
5
Ancient Den enters the battlefield, triggering Retreat to Coralhelm, untapping Goblin Welder.
6
Activate Ancient Den by tapping it, adding .
7
Repeat.

   Results

What do I get from this combo?
Infinite colorless mana
Infinite landfall triggers
Infinite white mana
Dr. Madison Li
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Breya, Etherium Shaper
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Ishai, Ojutai Dragonspeaker // Toggo, Goblin Weaponsmith
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Liberty Prime, Recharged
0.0%inclusion1 decks5.25K decks
Optimus Prime, Hero
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Garth One-Eye
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Bjorna, Nightfall Alchemist // Sophina, Spearsage Deserter
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High Synergy Cards
Vault of Whispers
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Great Furnace
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Jhoira, Weatherlight Captain
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Unwinding Clock
58%inclusion7 decks12 decks
56%synergy
Foundry Inspector
58%inclusion7 decks12 decks
54%synergy
Treasure Vault
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47%synergy
Inventors' Fair
50%inclusion6 decks12 decks
46%synergy
Dispatch
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44%synergy
Etherium Sculptor
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44%synergy
Top Cards
Esper Sentinel
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39%synergy
Krark-Clan Ironworks
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41%synergy
Ichor Wellspring
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40%synergy
Daretti, Scrap Savant
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40%synergy
Goblin Engineer
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Reckless Fireweaver
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38%synergy
Enthusiastic Mechanaut
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An Offer You Can't Refuse
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18%synergy
Electrostatic Pummeler
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Master Transmuter
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Game Changers
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18%synergy
Mana Vault
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27%synergy
Enlightened Tutor
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9%synergy
Creatures
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31%synergy
Emry, Lurker of the Loch
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29%synergy
Guide of Souls
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25%synergy
Ruin Ghost
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25%synergy
Aethergeode Miner
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25%synergy
Scaretiller
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25%synergy
Walking Atlas
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24%synergy
Whirler Virtuoso
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24%synergy
Wurmcoil Engine
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Thought Monitor
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Imperial Recruiter
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Instants
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Galvanic Discharge
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Swan Song
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Sorceries
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19%synergy
Sevinne's Reclamation
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18%synergy
Utility Artifacts
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31%synergy
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Panharmonicon
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29%synergy
Wayfarer's Bauble
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25%synergy
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26%synergy
Decoction Module
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Gonti's Aether Heart
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Automated Assembly Line
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24%synergy
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Enchantments
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Utility Lands
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36%synergy
Reliquary Tower
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Fomori Vault
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32%synergy
Urza's Saga
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Mana Artifacts
Sol Ring
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Arcane Signet
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Talisman of Creativity
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16%synergy
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Mox Amber
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Talisman of Conviction
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Talisman of Progress
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Lands
Command Tower
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29%synergy
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47%synergy
Sacred Foundry
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22%synergy
Spire of Industry
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Razortide Bridge
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39%synergy
Rustvale Bridge
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Arid Mesa
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Training Center
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Aether Hub
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33%synergy
Silverbluff Bridge
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Sea of Clouds
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Volcanic Island
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11%synergy
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Clifftop Retreat
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Sulfur Falls
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