Goblin Welder
Retreat to Coralhelm
Darksteel Citadel
Great Furnace
1

   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 Great Furnace 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 Great Furnace from your graveyard to the battlefield.
5
Great Furnace enters the battlefield, triggering Retreat to Coralhelm, untapping Goblin Welder.
6
Activate Great Furnace by tapping it, adding .
7
Repeat.

   Results

What do I get from this combo?
Infinite colorless mana
Infinite landfall triggers
Infinite red mana
Jhoira, Ageless Innovator
0.99% of 2126 decks 21 decks
Saheeli, the Sun's Brilliance
0.72% of 1817 decks 13 decks
Glacian, Powerstone Engineer // Toggo, Goblin Weaponsmith
3.70% of 108 decks 4 decks
Ashnod the Uncaring
0.16% of 2490 decks 4 decks
Sakashima of a Thousand Faces // Toggo, Goblin Weaponsmith
2.53% of 158 decks 4 decks
Breya, Etherium Shaper
0.03% of 15481 decks 4 decks
Dr. Madison Li
0.05% of 5458 decks 3 decks
Ishai, Ojutai Dragonspeaker // Toggo, Goblin Weaponsmith
8.82% of 34 decks 3 decks
Iron Man, Titan of Innovation
0.06% of 4947 decks 3 decks
Silas Renn, Seeker Adept // Toggo, Goblin Weaponsmith
0.87% of 231 decks 2 decks
Bjorna, Nightfall Alchemist // Sophina, Spearsage Deserter
0.64% of 157 decks 1 decks
Liberty Prime, Recharged
0.03% of 3952 decks 1 decks
Kydele, Chosen of Kruphix // Toggo, Goblin Weaponsmith
1.01% of 99 decks 1 decks
Thrasios, Triton Hero // Toggo, Goblin Weaponsmith
0.13% of 754 decks 1 decks
Rashmi and Ragavan
0.02% of 5529 decks 1 decks
Mishra, Artificer Prodigy
0.13% of 748 decks 1 decks
Ian Malcolm, Chaotician
0.03% of 3328 decks 1 decks
Brudiclad, Telchor Engineer
0.02% of 5338 decks 1 decks
High Synergy Cards
Vault of Whispers
100% of 11 decks +96% synergy
Ancient Den
100% of 12 decks +95% synergy
Seat of the Synod
99% of 70 decks +92% synergy
Master Transmuter
54% of 70 decks +53% synergy
Solemn Simulacrum
64% of 70 decks +51% synergy
Goblin Engineer
51% of 70 decks +48% synergy
Esper Sentinel
67% of 12 decks +47% synergy
Thought Monitor
50% of 70 decks +47% synergy
Dispatch
50% of 12 decks +45% synergy
Buried Ruin
50% of 70 decks +45% synergy
Top Cards
Etherium Sculptor
50% of 70 decks +45% synergy
Blasphemous Act
50% of 70 decks +17% synergy
Counterspell
50% of 70 decks +8% synergy
Reckless Fireweaver
49% of 70 decks +44% synergy
Emry, Lurker of the Loch
46% of 70 decks +42% synergy
Enthusiastic Mechanaut
44% of 70 decks +40% synergy
Foundry Inspector
41% of 70 decks +37% synergy
Jhoira, Weatherlight Captain
41% of 70 decks +36% synergy
Unwinding Clock
39% of 70 decks +36% synergy
Whir of Invention
39% of 70 decks +36% synergy
Game Changers
Urza, Lord High Artificer
33% of 70 decks +30% synergy
Bolas's Citadel
27% of 11 decks +19% synergy
Cyclonic Rift
26% of 70 decks -1% synergy
Enlightened Tutor
25% of 12 decks +8% synergy
Rhystic Study
23% of 70 decks -4% synergy
Field of the Dead
14% of 70 decks +11% synergy
Mana Vault
10% of 70 decks +4% synergy
The One Ring
10% of 70 decks +2% synergy
Ancient Tomb
10% of 70 decks -0% synergy
Gamble
7% of 70 decks -2% synergy
Creatures
Tireless Provisioner
100% of 3 decks +89% synergy
Kappa Cannoneer
37% of 70 decks +35% synergy
Ruin Ghost
33% of 12 decks +33% synergy
Guide of Souls
33% of 9 decks +31% synergy
Sai, Master Thopterist
33% of 70 decks +29% synergy
Walking Atlas
31% of 70 decks +31% synergy
Scrap Trawler
31% of 70 decks +30% synergy
Myr Battlesphere
31% of 70 decks +30% synergy
Padeem, Consul of Innovation
31% of 70 decks +28% synergy
Transit Mage
30% of 23 decks +30% synergy
Myr Retriever
30% of 70 decks +28% synergy
Brudiclad, Telchor Engineer
29% of 70 decks +25% synergy
Marvin, Murderous Mimic
28% of 36 decks +26% synergy
Ob Nixilis, the Fallen
27% of 11 decks +26% synergy
Marionette Master
27% of 11 decks +24% synergy
Wurmcoil Engine
27% of 70 decks +25% synergy
Cyberdrive Awakener
27% of 70 decks +25% synergy
Kuldotha Forgemaster
26% of 70 decks +25% synergy
Aethergeode Miner
25% of 12 decks +25% synergy
Trove Warden
25% of 12 decks +25% synergy
Teshar, Ancestor's Apostle
25% of 12 decks +23% synergy
Puresteel Paladin
25% of 12 decks +21% synergy
Phyrexian Metamorph
23% of 70 decks +16% synergy
Corridor Monitor
21% of 70 decks +21% synergy
Ingenious Artillerist
21% of 70 decks +19% synergy
Dreamscape Artist
20% of 70 decks +19% synergy
Triplicate Titan
20% of 70 decks +19% synergy
Shimmer Dragon
20% of 70 decks +18% synergy
Meteor Golem
19% of 70 decks +17% synergy
Roil Cartographer
18% of 45 decks +17% synergy
Mirran Spy
17% of 70 decks +17% synergy
Jhoira's Familiar
17% of 70 decks +16% synergy
Tiller Engine
16% of 70 decks +15% synergy
The Reality Chip
16% of 70 decks +12% synergy
Reckless Pyrosurfer
16% of 45 decks +15% synergy
Ioreth of the Healing House
15% of 65 decks +14% synergy
Tunneling Geopede
14% of 70 decks +14% synergy
Roil Elemental
14% of 70 decks +13% synergy
Blightsteel Colossus
14% of 70 decks +13% synergy
Combustible Gearhulk
14% of 70 decks +12% synergy
Spellskite
14% of 70 decks +11% synergy
Ornithopter of Paradise
14% of 70 decks +10% synergy
Audacious Reshapers
13% of 70 decks +12% synergy
Spitfire Lagac
13% of 70 decks +12% synergy
Nesting Dragon
13% of 70 decks +12% synergy
Dockside Extortionist
13% of 70 decks +5% synergy
Forensic Gadgeteer
12% of 52 decks +9% synergy
Tideforce Elemental
11% of 70 decks +11% synergy
Sage of Lat-Nam
11% of 70 decks +11% synergy
Scaretiller
11% of 70 decks +11% synergy
Instants
An Offer You Can't Refuse
37% of 70 decks +16% synergy
Chaos Warp
36% of 70 decks +4% synergy
Path to Exile
33% of 12 decks -13% synergy
Swords to Plowshares
33% of 12 decks -29% synergy
Pongify
26% of 70 decks +14% synergy
Arcane Denial
24% of 70 decks +4% synergy
Negate
24% of 70 decks +2% synergy
Three Steps Ahead
23% of 48 decks +20% synergy
Dramatic Reversal
23% of 70 decks +18% synergy
Reality Shift
23% of 70 decks +14% synergy
Rapid Hybridization
21% of 70 decks +12% synergy
Mana Drain
21% of 70 decks +7% synergy
Desynchronization
20% of 44 decks +18% synergy
Resculpt
16% of 70 decks +11% synergy
Swan Song
14% of 70 decks -2% synergy
Fierce Guardianship
14% of 70 decks -4% synergy
Masterful Replication
13% of 70 decks +12% synergy
Muddle the Mixture
11% of 70 decks +7% synergy
Brainstorm
11% of 70 decks -8% synergy
Demand Answers
11% of 54 decks +6% synergy
Disruption Protocol
10% of 70 decks +9% synergy
Shore Up
10% of 70 decks +8% synergy
Deflecting Swat
10% of 70 decks -6% synergy
Thirst for Knowledge
9% of 70 decks +7% synergy
Stoic Rebuttal
7% of 70 decks +7% synergy
Unwind
7% of 70 decks +4% synergy
Abrade
7% of 70 decks -4% synergy
Mystical Tutor
7% of 70 decks -7% synergy
Galvanic Discharge
7% of 45 decks +6% synergy
Cerulean Wisps
6% of 70 decks +5% synergy
Ghostly Flicker
6% of 70 decks +1% synergy
Frantic Search
6% of 70 decks -7% synergy
Sorceries
Fabricate
39% of 70 decks +33% synergy
Thoughtcast
34% of 70 decks +31% synergy
Jolted Awake
33% of 9 decks +33% synergy
Feed the Swarm
27% of 11 decks +10% synergy
Trash for Treasure
23% of 70 decks +22% synergy
Vandalblast
20% of 70 decks +4% synergy
Scrap Mastery
17% of 70 decks +17% synergy
Season of Weaving
17% of 41 decks +15% synergy
One with the Machine
14% of 70 decks +13% synergy
Rise and Shine
14% of 70 decks +13% synergy
Nahiri's Lithoforming
13% of 70 decks +12% synergy
Saheeli's Directive
11% of 70 decks +11% synergy
Rite of Replication
10% of 70 decks +7% synergy
Reverse Engineer
9% of 70 decks +8% synergy
Reshape
9% of 70 decks +7% synergy
Jeska's Will
9% of 70 decks -8% synergy
Faithless Looting
7% of 70 decks -9% synergy
Reckless Handling
6% of 67 decks +4% synergy
Universal Surveillance
6% of 70 decks +5% synergy
Utility Artifacts
Lightning Greaves
37% of 70 decks +12% synergy
Executioner's Capsule
36% of 11 decks +36% synergy
Time Sieve
36% of 11 decks +34% synergy
Krark-Clan Ironworks
36% of 70 decks +35% synergy
Ichor Wellspring
36% of 70 decks +34% synergy
Wayfarer's Bauble
36% of 70 decks +26% synergy
Mystic Forge
31% of 70 decks +29% synergy
Automated Assembly Line
30% of 10 decks +29% synergy
Encroaching Mycosynth
30% of 70 decks +29% synergy
Sculpting Steel
30% of 70 decks +28% synergy
Esoteric Duplicator
29% of 48 decks +29% synergy
Mind Stone
29% of 70 decks +12% synergy
Oni-Cult Anvil
27% of 11 decks +26% synergy
Swiftfoot Boots
27% of 70 decks -0% synergy
Shorikai, Genesis Engine
25% of 12 decks +22% synergy
Archaeomancer's Map
25% of 12 decks +22% synergy
Sting, the Glinting Dagger
25% of 65 decks +23% synergy
Illusionist's Bracers
24% of 70 decks +23% synergy
Crucible of Worlds
23% of 70 decks +20% synergy
Mirrorworks
21% of 70 decks +21% synergy
Clock of Omens
21% of 70 decks +21% synergy
Sensei's Divining Top
21% of 70 decks +16% synergy
Prototype Portal
20% of 70 decks +20% synergy
Rings of Brighthearth
20% of 70 decks +19% synergy
Thousand-Year Elixir
20% of 70 decks +18% synergy
Worldwalker Helm
19% of 48 decks +18% synergy
Staff of Domination
19% of 70 decks +17% synergy
Cloud Key
19% of 70 decks +17% synergy
Simulacrum Synthesizer
17% of 48 decks +15% synergy
Mishra's Bauble
16% of 70 decks +14% synergy
Commander's Sphere
16% of 70 decks +1% synergy
Liquimetal Coating
14% of 70 decks +14% synergy
Mycosynth Wellspring
14% of 70 decks +14% synergy
Mycosynth Lattice
14% of 70 decks +14% synergy
Moonsilver Key
14% of 70 decks +13% synergy
Portal to Phyrexia
14% of 70 decks +13% synergy
Hedron Archive
14% of 70 decks +11% synergy
Panharmonicon
14% of 70 decks +10% synergy
Idol of Oblivion
14% of 70 decks +10% synergy
Amulet of Vigor
13% of 70 decks +12% synergy
Lithoform Engine
13% of 70 decks +12% synergy
Inspiring Statuary
13% of 70 decks +11% synergy
Expedition Map
13% of 70 decks +10% synergy
Chimil, the Inner Sun
12% of 58 decks +10% synergy
Tamiyo's Logbook
11% of 70 decks +11% synergy
Trading Post
11% of 70 decks +10% synergy
Darksteel Forge
11% of 70 decks +10% synergy
Isochron Scepter
11% of 70 decks +9% synergy
Ashnod's Altar
11% of 70 decks +4% synergy
Darksteel Monolith
11% of 62 decks +10% synergy
Enchantments
Retreat to Hagra
27% of 11 decks +26% synergy
Storm the Vault
27% of 70 decks +24% synergy
Valakut Exploration
26% of 70 decks +24% synergy
Retreat to Emeria
25% of 12 decks +24% synergy
Felidar Retreat
25% of 12 decks +18% synergy
Thopter Spy Network
23% of 70 decks +19% synergy
Freed from the Real
21% of 70 decks +19% synergy
Mirrodin Besieged
19% of 70 decks +17% synergy
Mechanized Production
17% of 70 decks +14% synergy
Trade Routes
16% of 70 decks +15% synergy
Mystic Remora
14% of 70 decks -3% synergy
Excavation
13% of 70 decks +13% synergy
Ghirapur Aether Grid
13% of 70 decks +12% synergy
Intruder Alarm
11% of 70 decks +9% synergy
Retreat to Valakut
10% of 70 decks +10% synergy
Determined Iteration
10% of 70 decks +9% synergy
Artificer Class
10% of 70 decks +9% synergy
Pemmin's Aura
10% of 70 decks +9% synergy
Planeswalkers
Daretti, Scrap Savant
31% of 70 decks +29% synergy
Saheeli, Filigree Master
13% of 70 decks +12% synergy
Karn, the Great Creator
11% of 70 decks +10% synergy
Saheeli, the Gifted
10% of 70 decks +9% synergy
Tezzeret the Seeker
10% of 70 decks +8% synergy
Saheeli, Sublime Artificer
10% of 70 decks +6% synergy
Tezzeret, Artifice Master
7% of 70 decks +6% synergy
Tezzeret, Betrayer of Flesh
6% of 70 decks +5% synergy
Utility Lands
Inventors' Fair
47% of 70 decks +43% synergy
Treasure Vault
43% of 70 decks +40% synergy
Reliquary Tower
43% of 70 decks +13% synergy
Archway of Innovation
34% of 44 decks +31% synergy
Academy Ruins
33% of 70 decks +28% synergy
Urza's Saga
27% of 70 decks +20% synergy
Fomori Vault
27% of 48 decks +26% synergy
Minamo, School at Water's Edge
16% of 70 decks +11% synergy
Otawara, Soaring City
16% of 70 decks -1% synergy
Terrain Generator
14% of 70 decks +13% synergy
Restless Spire
12% of 60 decks +10% synergy
Oboro, Palace in the Clouds
11% of 70 decks +11% synergy
Vesuva
10% of 70 decks +9% synergy
Thespian's Stage
10% of 70 decks +7% synergy
Mystic Sanctuary
10% of 70 decks -1% synergy
Blinkmoth Nexus
9% of 70 decks +8% synergy
Mutavault
9% of 70 decks +8% synergy
Urza's Power Plant
9% of 70 decks +7% synergy
Urza's Mine
9% of 70 decks +7% synergy
Urza's Tower
9% of 70 decks +7% synergy
Valakut, the Molten Pinnacle
9% of 70 decks +6% synergy
Rogue's Passage
9% of 70 decks -11% synergy
Mishra's Factory
7% of 70 decks +6% synergy
Arena of Glory
7% of 45 decks +1% synergy
Rivendell
6% of 65 decks +2% synergy
Ghost Town
6% of 70 decks +5% synergy
Tolaria West
6% of 70 decks +5% synergy
Guildless Commons
6% of 70 decks +4% synergy
Ghost Quarter
6% of 70 decks +3% synergy
Strip Mine
6% of 70 decks +3% synergy
Temple of the False God
6% of 70 decks -4% synergy
Mana Artifacts
Sol Ring
90% of 70 decks +6% synergy
Arcane Signet
83% of 70 decks +11% synergy
Izzet Signet
46% of 70 decks +18% synergy
Talisman of Creativity
44% of 70 decks +16% synergy
Liquimetal Torque
36% of 70 decks +33% synergy
Cursed Mirror
29% of 70 decks +23% synergy
Talisman of Indulgence
27% of 11 decks +0% synergy
Dimir Signet
27% of 11 decks -1% synergy
Rakdos Signet
27% of 11 decks -1% synergy
Talisman of Dominance
27% of 11 decks -5% synergy
Fellwar Stone
26% of 70 decks +5% synergy
Boros Signet
25% of 12 decks +3% synergy
Talisman of Progress
25% of 12 decks +1% synergy
Azorius Signet
25% of 12 decks -0% synergy
Thought Vessel
21% of 70 decks +4% synergy
Patriar's Seal
20% of 70 decks +18% synergy
Thran Dynamo
20% of 70 decks +15% synergy
Machine God's Effigy
14% of 70 decks +13% synergy
Basalt Monolith
13% of 70 decks +10% synergy
Misleading Signpost
12% of 60 decks +10% synergy
Gilded Lotus
11% of 70 decks +8% synergy
Chromatic Lantern
11% of 70 decks +2% synergy
Crystal Skull, Isu Spyglass
11% of 44 decks +9% synergy
Coveted Jewel
9% of 70 decks +8% synergy
Mox Opal
9% of 70 decks +4% synergy
Chromatic Orrery
7% of 70 decks +6% synergy
Mox Amber
7% of 70 decks +3% synergy
Midnight Clock
7% of 70 decks +2% synergy
Blinkmoth Urn
6% of 70 decks +5% synergy
Mana Crypt
6% of 70 decks -0% synergy
Lands
Slagwoods Bridge
100% of 3 decks +97% synergy
Tanglepool Bridge
100% of 3 decks +97% synergy
Stomping Ground
100% of 3 decks +60% synergy
Breeding Pool
100% of 3 decks +60% synergy
Command Tower
83% of 70 decks +8% synergy
Drossforge Bridge
82% of 11 decks +78% synergy
Mistvault Bridge
82% of 11 decks +78% synergy
Silverbluff Bridge
79% of 70 decks +73% synergy
Hallowed Fountain
67% of 12 decks +27% synergy
Steam Vents
61% of 70 decks +23% synergy
Razortide Bridge
58% of 12 decks +52% synergy
Sacred Foundry
58% of 12 decks +23% synergy
Sulfur Falls
56% of 70 decks +23% synergy
Xander's Lounge
55% of 11 decks +29% synergy
Watery Grave
55% of 11 decks +14% synergy
Rustvale Bridge
50% of 12 decks +45% synergy
Izzet Boilerworks
49% of 70 decks +33% synergy
Scalding Tarn
41% of 70 decks +31% synergy
Shivan Reef
40% of 70 decks +12% synergy
Training Center
37% of 70 decks +11% synergy
Haunted Ridge
36% of 11 decks +20% synergy
Luxury Suite
36% of 11 decks +10% synergy
Dragonskull Summit
36% of 11 decks +4% synergy
Blood Crypt
36% of 11 decks -2% synergy
Stormcarved Coast
33% of 70 decks +15% synergy
Dimir Aqueduct
27% of 11 decks +11% synergy
Morphic Pool
27% of 11 decks +2% synergy
Drowned Catacomb
27% of 11 decks +0% synergy
Cascade Bluffs
27% of 70 decks +15% synergy
Spire of Industry
26% of 70 decks +23% synergy
Myriad Landscape
26% of 70 decks +7% synergy
Boros Garrison
25% of 12 decks +11% synergy
Azorius Chancery
25% of 12 decks +11% synergy
Raugrin Triome
25% of 12 decks -1% synergy
Sea of Clouds
25% of 12 decks -1% synergy
Glacial Fortress
25% of 12 decks -3% synergy
Clifftop Retreat
25% of 12 decks -6% synergy
Scene of the Crime
25% of 53 decks +24% synergy
Power Depot
24% of 70 decks +24% synergy
Terramorphic Expanse
24% of 70 decks +9% synergy
Frostboil Snarl
23% of 70 decks +8% synergy
Evolving Wilds
23% of 70 decks +2% synergy
Exotic Orchard
21% of 70 decks -15% synergy
Ferrous Lake
20% of 50 decks +13% synergy
Fabled Passage
19% of 70 decks +10% synergy
The Mycosynth Gardens
16% of 70 decks +14% synergy
Riverglide Pathway
16% of 70 decks +7% synergy
Thundering Falls
15% of 53 decks +7% synergy
Fiery Islet
14% of 70 decks +7% synergy
Arid Mesa
14% of 70 decks +4% synergy