Goblin Welder
Retreat to Coralhelm
Seat of the Synod
Darksteel Citadel
1

   Prerequisites

What do I need to start this combo?
Seat of the Synod 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 Darksteel Citadel and return Seat of the Synod from your graveyard to the battlefield.
2
Seat of the Synod enters the battlefield, triggering Retreat to Coralhelm, untapping Goblin Welder.
3
Activate Seat of the Synod by tapping it, adding .
4
Activate Goblin Welder by tapping it, causing you to sacrifice Seat of the Synod and return Darksteel Citadel from your graveyard to the battlefield.
5
Darksteel Citadel enters the battlefield, triggering Retreat to Coralhelm, untapping Goblin Welder.
6
Activate Darksteel Citadel by tapping it, adding .
7
Repeat.

   Results

What do I get from this combo?
Infinite blue mana
Infinite colorless mana
Infinite landfall triggers
Jhoira, Ageless Innovator
1.08% of 2126 decks 23 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
Great Furnace
96% of 72 decks +91% synergy
Master Transmuter
57% of 72 decks +55% synergy
Solemn Simulacrum
65% of 72 decks +52% synergy
Etherium Sculptor
53% of 72 decks +47% synergy
Esper Sentinel
67% of 12 decks +47% synergy
Goblin Engineer
50% of 72 decks +47% synergy
Thought Monitor
50% of 72 decks +47% synergy
Dispatch
50% of 12 decks +45% synergy
Top Cards
Counterspell
50% of 72 decks +8% synergy
Reckless Fireweaver
49% of 72 decks +44% synergy
Blasphemous Act
49% of 72 decks +15% synergy
Emry, Lurker of the Loch
47% of 72 decks +43% synergy
Enthusiastic Mechanaut
46% of 72 decks +42% synergy
Foundry Inspector
43% of 72 decks +39% synergy
Jhoira, Weatherlight Captain
42% of 72 decks +36% synergy
Unwinding Clock
40% of 72 decks +38% synergy
Kappa Cannoneer
39% of 72 decks +37% synergy
Fabricate
39% of 72 decks +33% synergy
Game Changers
Urza, Lord High Artificer
32% of 72 decks +29% synergy
Bolas's Citadel
27% of 11 decks +19% synergy
Enlightened Tutor
25% of 12 decks +8% synergy
Cyclonic Rift
25% of 72 decks -1% synergy
Rhystic Study
24% of 72 decks -3% synergy
Field of the Dead
14% of 72 decks +11% synergy
Mana Vault
10% of 72 decks +4% synergy
The One Ring
10% of 72 decks +2% synergy
Ancient Tomb
10% of 72 decks -0% synergy
Gamble
7% of 72 decks -2% synergy
Creatures
Tireless Provisioner
100% of 3 decks +89% synergy
Sai, Master Thopterist
35% of 72 decks +31% synergy
Ruin Ghost
33% of 12 decks +33% synergy
Guide of Souls
33% of 9 decks +31% synergy
Padeem, Consul of Innovation
33% of 72 decks +30% synergy
Scrap Trawler
32% of 72 decks +30% synergy
Myr Battlesphere
32% of 72 decks +30% synergy
Walking Atlas
31% of 72 decks +30% synergy
Myr Retriever
31% of 72 decks +29% synergy
Transit Mage
30% of 23 decks +30% synergy
Cyberdrive Awakener
29% of 72 decks +27% synergy
Brudiclad, Telchor Engineer
29% of 72 decks +26% synergy
Kuldotha Forgemaster
28% of 72 decks +27% synergy
Wurmcoil Engine
28% of 72 decks +26% synergy
Ob Nixilis, the Fallen
27% of 11 decks +26% synergy
Marionette Master
27% of 11 decks +24% synergy
Marvin, Murderous Mimic
26% of 38 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
25% of 72 decks +18% synergy
Corridor Monitor
21% of 72 decks +20% synergy
Shimmer Dragon
21% of 72 decks +19% synergy
Ingenious Artillerist
21% of 72 decks +19% synergy
Dreamscape Artist
19% of 72 decks +19% synergy
Meteor Golem
19% of 72 decks +17% synergy
Mirran Spy
18% of 72 decks +18% synergy
Triplicate Titan
18% of 72 decks +17% synergy
Jhoira's Familiar
18% of 72 decks +16% synergy
Roil Cartographer
17% of 46 decks +16% synergy
The Reality Chip
17% of 72 decks +13% synergy
Tiller Engine
15% of 72 decks +15% synergy
Blightsteel Colossus
15% of 72 decks +14% synergy
Combustible Gearhulk
15% of 72 decks +13% synergy
Spellskite
15% of 72 decks +12% synergy
Reckless Pyrosurfer
15% of 46 decks +15% synergy
Ioreth of the Healing House
15% of 67 decks +14% synergy
Tunneling Geopede
14% of 72 decks +13% synergy
Roil Elemental
14% of 72 decks +13% synergy
Ornithopter of Paradise
14% of 72 decks +10% synergy
Spitfire Lagac
12% of 72 decks +12% synergy
Nesting Dragon
12% of 72 decks +12% synergy
Threefold Thunderhulk
12% of 60 decks +11% synergy
Forensic Gadgeteer
11% of 53 decks +9% synergy
Tideforce Elemental
11% of 72 decks +11% synergy
Sage of Lat-Nam
11% of 72 decks +11% synergy
Scaretiller
11% of 72 decks +11% synergy
Transplant Theorist
11% of 72 decks +11% synergy
Audacious Reshapers
11% of 72 decks +11% synergy
Instants
Whir of Invention
38% of 72 decks +35% synergy
An Offer You Can't Refuse
38% of 72 decks +16% synergy
Chaos Warp
36% of 72 decks +5% synergy
Path to Exile
33% of 12 decks -13% synergy
Swords to Plowshares
33% of 12 decks -29% synergy
Pongify
25% of 72 decks +14% synergy
Arcane Denial
25% of 72 decks +5% synergy
Negate
25% of 72 decks +3% synergy
Dramatic Reversal
24% of 72 decks +19% synergy
Three Steps Ahead
22% of 49 decks +20% synergy
Desynchronization
22% of 45 decks +20% synergy
Reality Shift
22% of 72 decks +13% synergy
Rapid Hybridization
22% of 72 decks +13% synergy
Mana Drain
21% of 72 decks +6% synergy
Resculpt
15% of 72 decks +11% synergy
Swan Song
15% of 72 decks -1% synergy
Fierce Guardianship
14% of 72 decks -4% synergy
Masterful Replication
12% of 72 decks +12% synergy
Demand Answers
12% of 56 decks +7% synergy
Muddle the Mixture
11% of 72 decks +6% synergy
Brainstorm
11% of 72 decks -9% synergy
Disruption Protocol
10% of 72 decks +9% synergy
Shore Up
10% of 72 decks +8% synergy
Deflecting Swat
10% of 72 decks -7% synergy
Thirst for Knowledge
8% of 72 decks +7% synergy
Stoic Rebuttal
7% of 72 decks +6% synergy
Unwind
7% of 72 decks +4% synergy
Abrade
7% of 72 decks -4% synergy
Mystical Tutor
7% of 72 decks -7% synergy
Galvanic Discharge
7% of 46 decks +6% synergy
Cerulean Wisps
6% of 72 decks +5% synergy
Ghostly Flicker
6% of 72 decks +1% synergy
Frantic Search
6% of 72 decks -7% synergy
Sorceries
Thoughtcast
38% of 72 decks +34% synergy
Jolted Awake
33% of 9 decks +33% synergy
Feed the Swarm
27% of 11 decks +10% synergy
Trash for Treasure
24% of 72 decks +23% synergy
Vandalblast
19% of 72 decks +4% synergy
Scrap Mastery
17% of 72 decks +16% synergy
Season of Weaving
17% of 42 decks +15% synergy
One with the Machine
15% of 72 decks +14% synergy
Rise and Shine
14% of 72 decks +13% synergy
Nahiri's Lithoforming
12% of 72 decks +12% synergy
Saheeli's Directive
10% of 72 decks +9% synergy
Reverse Engineer
10% of 72 decks +9% synergy
Rite of Replication
10% of 72 decks +7% synergy
Reshape
8% of 72 decks +7% synergy
Jeska's Will
8% of 72 decks -8% synergy
Universal Surveillance
7% of 72 decks +6% synergy
Faithless Looting
7% of 72 decks -9% synergy
Reckless Handling
6% of 69 decks +4% synergy
Utility Artifacts
Lightning Greaves
38% of 72 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 72 decks +35% synergy
Ichor Wellspring
35% of 72 decks +33% synergy
Wayfarer's Bauble
35% of 72 decks +25% synergy
Esoteric Duplicator
31% of 49 decks +30% synergy
Encroaching Mycosynth
31% of 72 decks +30% synergy
Sculpting Steel
31% of 72 decks +28% synergy
Mystic Forge
31% of 72 decks +28% synergy
Automated Assembly Line
30% of 10 decks +29% synergy
Mind Stone
28% of 72 decks +11% synergy
Swiftfoot Boots
28% of 72 decks +0% synergy
Oni-Cult Anvil
27% of 11 decks +26% synergy
Shorikai, Genesis Engine
25% of 12 decks +22% synergy
Archaeomancer's Map
25% of 12 decks +22% synergy
Mirrorworks
24% of 72 decks +23% synergy
Illusionist's Bracers
24% of 72 decks +22% synergy
Sting, the Glinting Dagger
22% of 67 decks +21% synergy
Clock of Omens
22% of 72 decks +21% synergy
Crucible of Worlds
22% of 72 decks +20% synergy
Sensei's Divining Top
22% of 72 decks +17% synergy
Prototype Portal
21% of 72 decks +21% synergy
Worldwalker Helm
20% of 49 decks +19% synergy
Rings of Brighthearth
19% of 72 decks +18% synergy
Cloud Key
19% of 72 decks +18% synergy
Thousand-Year Elixir
19% of 72 decks +18% synergy
Simulacrum Synthesizer
18% of 49 decks +17% synergy
Staff of Domination
18% of 72 decks +16% synergy
Mycosynth Wellspring
17% of 72 decks +16% synergy
Commander's Sphere
17% of 72 decks +2% synergy
Mishra's Bauble
15% of 72 decks +14% synergy
Idol of Oblivion
15% of 72 decks +11% synergy
Liquimetal Coating
14% of 72 decks +13% synergy
Mycosynth Lattice
14% of 72 decks +13% synergy
Darksteel Forge
14% of 72 decks +13% synergy
Moonsilver Key
14% of 72 decks +13% synergy
Portal to Phyrexia
14% of 72 decks +12% synergy
Panharmonicon
14% of 72 decks +10% synergy
Tamiyo's Logbook
12% of 72 decks +12% synergy
Amulet of Vigor
12% of 72 decks +12% synergy
Lithoform Engine
12% of 72 decks +11% synergy
Inspiring Statuary
12% of 72 decks +11% synergy
Hedron Archive
12% of 72 decks +10% synergy
Expedition Map
12% of 72 decks +10% synergy
Chimil, the Inner Sun
12% of 60 decks +10% synergy
Trading Post
11% of 72 decks +10% synergy
Isochron Scepter
11% of 72 decks +9% synergy
Ashnod's Altar
11% of 72 decks +4% synergy
Darksteel Monolith
11% of 64 decks +10% synergy
Enchantments
Storm the Vault
28% of 72 decks +25% synergy
Retreat to Hagra
27% of 11 decks +26% synergy
Thopter Spy Network
26% of 72 decks +23% synergy
Retreat to Emeria
25% of 12 decks +24% synergy
Valakut Exploration
25% of 72 decks +23% synergy
Felidar Retreat
25% of 12 decks +18% synergy
Freed from the Real
21% of 72 decks +19% synergy
Mirrodin Besieged
18% of 72 decks +16% synergy
Mechanized Production
18% of 72 decks +15% synergy
Trade Routes
15% of 72 decks +15% synergy
Mystic Remora
15% of 72 decks -2% synergy
Intruder Alarm
14% of 72 decks +12% synergy
Excavation
12% of 72 decks +12% synergy
Ghirapur Aether Grid
12% of 72 decks +12% synergy
Artificer Class
12% of 72 decks +12% synergy
Determined Iteration
11% of 72 decks +10% synergy
Pemmin's Aura
11% of 72 decks +10% synergy
Retreat to Valakut
10% of 72 decks +10% synergy
Planeswalkers
Daretti, Scrap Savant
33% of 72 decks +31% synergy
Saheeli, Filigree Master
11% of 72 decks +10% synergy
Karn, the Great Creator
11% of 72 decks +10% synergy
Tezzeret the Seeker
11% of 72 decks +9% synergy
Saheeli, the Gifted
10% of 72 decks +9% synergy
Saheeli, Sublime Artificer
8% of 72 decks +4% synergy
Tezzeret, Artifice Master
7% of 72 decks +6% synergy
Tezzeret, Betrayer of Flesh
6% of 72 decks +4% synergy
Utility Lands
Buried Ruin
50% of 72 decks +45% synergy
Inventors' Fair
47% of 72 decks +44% synergy
Treasure Vault
42% of 72 decks +39% synergy
Reliquary Tower
40% of 72 decks +11% synergy
Archway of Innovation
33% of 45 decks +30% synergy
Academy Ruins
33% of 72 decks +28% synergy
Fomori Vault
27% of 49 decks +26% synergy
Urza's Saga
26% of 72 decks +19% synergy
Minamo, School at Water's Edge
17% of 72 decks +12% synergy
Otawara, Soaring City
17% of 72 decks +0% synergy
Terrain Generator
14% of 72 decks +13% synergy
Restless Spire
11% of 62 decks +9% synergy
Oboro, Palace in the Clouds
11% of 72 decks +10% synergy
Vesuva
10% of 72 decks +8% synergy
Thespian's Stage
10% of 72 decks +7% synergy
Mystic Sanctuary
10% of 72 decks -2% synergy
Blinkmoth Nexus
8% of 72 decks +8% synergy
Mutavault
8% of 72 decks +7% synergy
Urza's Power Plant
8% of 72 decks +7% synergy
Urza's Mine
8% of 72 decks +7% synergy
Urza's Tower
8% of 72 decks +7% synergy
Valakut, the Molten Pinnacle
8% of 72 decks +6% synergy
Rogue's Passage
8% of 72 decks -12% synergy
Mishra's Factory
7% of 72 decks +6% synergy
Strip Mine
7% of 72 decks +4% synergy
Arena of Glory
7% of 46 decks +0% synergy
Rivendell
6% of 67 decks +2% synergy
Ghost Town
6% of 72 decks +5% synergy
Tolaria West
6% of 72 decks +4% synergy
Guildless Commons
6% of 72 decks +4% synergy
Ghost Quarter
6% of 72 decks +3% synergy
Temple of the False God
6% of 72 decks -4% synergy
Mana Artifacts
Sol Ring
89% of 72 decks +5% synergy
Arcane Signet
83% of 72 decks +11% synergy
Izzet Signet
44% of 72 decks +17% synergy
Talisman of Creativity
43% of 72 decks +14% synergy
Liquimetal Torque
36% of 72 decks +33% synergy
Cursed Mirror
28% of 72 decks +22% 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 72 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
22% of 72 decks +5% synergy
Patriar's Seal
21% of 72 decks +19% synergy
Thran Dynamo
21% of 72 decks +16% synergy
Machine God's Effigy
14% of 72 decks +13% synergy
Crystal Skull, Isu Spyglass
13% of 45 decks +11% synergy
Basalt Monolith
12% of 72 decks +10% synergy
Misleading Signpost
11% of 62 decks +10% synergy
Gilded Lotus
11% of 72 decks +8% synergy
Chromatic Lantern
11% of 72 decks +2% synergy
Blinkmoth Urn
7% of 72 decks +7% synergy
Coveted Jewel
7% of 72 decks +6% synergy
Chromatic Orrery
7% of 72 decks +5% synergy
Mox Amber
7% of 72 decks +3% synergy
Mox Opal
7% of 72 decks +3% synergy
Midnight Clock
7% of 72 decks +2% synergy
Mana Crypt
6% of 72 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
82% of 72 decks +8% synergy
Drossforge Bridge
82% of 11 decks +78% synergy
Mistvault Bridge
82% of 11 decks +78% synergy
Silverbluff Bridge
81% of 72 decks +75% synergy
Hallowed Fountain
67% of 12 decks +27% synergy
Steam Vents
61% of 72 decks +23% synergy
Razortide Bridge
58% of 12 decks +52% synergy
Sacred Foundry
58% of 12 decks +23% synergy
Sulfur Falls
57% of 72 decks +24% 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
50% of 72 decks +34% synergy
Scalding Tarn
40% of 72 decks +29% synergy
Shivan Reef
40% of 72 decks +13% synergy
Training Center
38% of 72 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
32% of 72 decks +14% 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
26% of 72 decks +14% synergy
Power Depot
25% of 72 decks +24% synergy
Spire of Industry
25% of 72 decks +22% synergy
Boros Garrison
25% of 12 decks +11% synergy
Azorius Chancery
25% of 12 decks +11% synergy
Myriad Landscape
25% of 72 decks +7% 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
24% of 54 decks +23% synergy
Frostboil Snarl
24% of 72 decks +9% synergy
Terramorphic Expanse
24% of 72 decks +8% synergy
Evolving Wilds
24% of 72 decks +3% synergy
Exotic Orchard
21% of 72 decks -15% synergy
Ferrous Lake
20% of 51 decks +12% synergy
Fabled Passage
18% of 72 decks +9% synergy
The Mycosynth Gardens
15% of 72 decks +13% synergy
Fiery Islet
15% of 72 decks +8% synergy
Thundering Falls
15% of 54 decks +6% synergy
Riverglide Pathway
14% of 72 decks +5% synergy
Arid Mesa
14% of 72 decks +4% synergy