Goblin Welder
Retreat to Coralhelm
Seat of the Synod
Darksteel Citadel

   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
Sanar, Unfinished Genius
0.1%inclusion1 decks924 decks
Top Commanders
Jhoira, Ageless Innovator
1.0%inclusion25 decks2.50K decks
Saheeli, the Sun's Brilliance
0.8%inclusion15 decks1.90K decks
Glacian, Powerstone Engineer // Toggo, Goblin Weaponsmith
4.8%inclusion8 decks166 decks
Sakashima of a Thousand Faces // Toggo, Goblin Weaponsmith
3.0%inclusion6 decks202 decks
Iron Man, Titan of Innovation
0.1%inclusion5 decks8.43K decks
Dr. Madison Li
0.1%inclusion4 decks6.80K decks
Ishai, Ojutai Dragonspeaker // Toggo, Goblin Weaponsmith
9.3%inclusion4 decks43 decks
Silas Renn, Seeker Adept // Toggo, Goblin Weaponsmith
1.1%inclusion3 decks268 decks
Breya, Etherium Shaper
0.0%inclusion3 decks21.5K decks
Garth One-Eye
0.0%inclusion2 decks5.34K decks
Ian Malcolm, Chaotician
0.0%inclusion1 decks5.05K decks
Breeches, the Blastmaker
0.1%inclusion1 decks1.26K decks
Bjorna, Nightfall Alchemist // Sophina, Spearsage Deserter
0.5%inclusion1 decks189 decks
Thrasios, Triton Hero // Toggo, Goblin Weaponsmith
0.1%inclusion1 decks909 decks
Optimus Prime, Hero
0.0%inclusion1 decks4.59K decks
Brudiclad, Telchor Engineer
0.0%inclusion1 decks6.50K decks
Shao Jun
0.1%inclusion1 decks1.98K decks
Urtet, Remnant of Memnarch
0.0%inclusion1 decks17.3K decks
Mary Read and Anne Bonny
0.1%inclusion1 decks1.34K decks
Tetzin, Gnome Champion
0.0%inclusion1 decks4.51K decks
New Cards
Scorched Geyser
8.3%inclusion1 decks12 decks
High Synergy Cards
Tree of Tales
100%inclusion4 decks4 decks
Vault of Whispers
100%inclusion9 decks9 decks
Ancient Den
94%inclusion16 decks17 decks
Great Furnace
94%inclusion81 decks86 decks
Baleful Strix
67%inclusion6 decks9 decks
Tezzeret, Master of the Bridge
56%inclusion5 decks9 decks
Thought Monitor
56%inclusion48 decks86 decks
Solemn Simulacrum
62%inclusion53 decks86 decks
Inventors' Fair
52%inclusion45 decks86 decks
Emry, Lurker of the Loch
52%inclusion45 decks86 decks
Top Cards
Reckless Fireweaver
49%inclusion42 decks86 decks
Dispatch
47%inclusion8 decks17 decks
Esper Sentinel
47%inclusion8 decks17 decks
Master Transmuter
47%inclusion40 decks86 decks
Goblin Engineer
47%inclusion40 decks86 decks
Blasphemous Act
43%inclusion37 decks86 decks
Urza, Lord High Artificer
41%inclusion35 decks86 decks
Thoughtcast
40%inclusion34 decks86 decks
Etherium Sculptor
40%inclusion34 decks86 decks
Ichor Wellspring
38%inclusion33 decks86 decks
Game Changers
Rhystic Study
19%inclusion16 decks86 decks
Enlightened Tutor
18%inclusion3 decks17 decks
Cyclonic Rift
13%inclusion11 decks86 decks
Field of the Dead
10%inclusion9 decks86 decks
Fierce Guardianship
10%inclusion9 decks86 decks
Mana Vault
7.0%inclusion6 decks86 decks
The One Ring
7.0%inclusion6 decks86 decks
Gamble
7.0%inclusion6 decks86 decks
Mystical Tutor
7.0%inclusion6 decks86 decks
Jeska's Will
5.8%inclusion5 decks86 decks
Creatures
Walking Atlas
35%inclusion30 decks86 decks
Enthusiastic Mechanaut
35%inclusion30 decks86 decks
Kuldotha Forgemaster
34%inclusion29 decks86 decks
Kappa Cannoneer
34%inclusion29 decks86 decks
Jhoira, Weatherlight Captain
33%inclusion28 decks86 decks
Foundry Inspector
30%inclusion26 decks86 decks
Ruin Ghost
29%inclusion5 decks17 decks
Cyberdrive Awakener
29%inclusion25 decks86 decks
Phyrexian Metamorph
29%inclusion25 decks86 decks
Brudiclad, Telchor Engineer
28%inclusion24 decks86 decks
Weftstalker Ardent
28%inclusion12 decks43 decks
Wurmcoil Engine
26%inclusion22 decks86 decks
Padeem, Consul of Innovation
26%inclusion22 decks86 decks
PuPu UFO
25%inclusion13 decks52 decks
Oswald Fiddlebender
24%inclusion4 decks17 decks
Teshar, Ancestor's Apostle
24%inclusion4 decks17 decks
Puresteel Paladin
24%inclusion4 decks17 decks
Myr Battlesphere
23%inclusion20 decks86 decks
Combustible Gearhulk
23%inclusion20 decks86 decks
Scrap Trawler
21%inclusion18 decks86 decks
Meteor Golem
21%inclusion18 decks86 decks
Marvin, Murderous Mimic
20%inclusion16 decks80 decks
Sai, Master Thopterist
20%inclusion17 decks86 decks
Depthshaker Titan
19%inclusion8 decks42 decks
Sage of Lat-Nam
19%inclusion16 decks86 decks
Corridor Monitor
19%inclusion16 decks86 decks
Tunneling Geopede
19%inclusion16 decks86 decks
Shimmer Dragon
19%inclusion16 decks86 decks
Transit Mage
19%inclusion13 decks70 decks
Trove Warden
18%inclusion3 decks17 decks
Liberty Prime, Recharged
18%inclusion3 decks17 decks
Guide of Souls
18%inclusion3 decks17 decks
Sun Titan
18%inclusion3 decks17 decks
Scaretiller
17%inclusion15 decks86 decks
Ingenious Artillerist
17%inclusion15 decks86 decks
Spitfire Lagac
16%inclusion14 decks86 decks
Dreamscape Artist
15%inclusion13 decks86 decks
Tiller Engine
15%inclusion13 decks86 decks
Metalwork Colossus
15%inclusion13 decks86 decks
Trinket Mage
15%inclusion13 decks86 decks
Ornithopter of Paradise
15%inclusion13 decks86 decks
Tideforce Elemental
14%inclusion12 decks86 decks
Mirran Spy
14%inclusion12 decks86 decks
Roil Elemental
14%inclusion12 decks86 decks
Myr Retriever
14%inclusion12 decks86 decks
The Reality Chip
14%inclusion12 decks86 decks
Spellskite
14%inclusion12 decks86 decks
Roil Cartographer
13%inclusion11 decks86 decks
Triplicate Titan
13%inclusion11 decks86 decks
Steel Hellkite
13%inclusion11 decks86 decks
Instants
Chaos Warp
35%inclusion30 decks86 decks
Counterspell
35%inclusion30 decks86 decks
Deadly Dispute
33%inclusion3 decks9 decks
Pongify
31%inclusion27 decks86 decks
An Offer You Can't Refuse
30%inclusion26 decks86 decks
Swords to Plowshares
29%inclusion5 decks17 decks
Whir of Invention
27%inclusion23 decks86 decks
Negate
24%inclusion21 decks86 decks
Scour for Scrap
24%inclusion10 decks41 decks
Path to Exile
24%inclusion4 decks17 decks
Rapid Hybridization
23%inclusion20 decks86 decks
Arcane Denial
21%inclusion18 decks86 decks
Three Steps Ahead
20%inclusion17 decks86 decks
Reality Shift
20%inclusion17 decks86 decks
Desynchronization
19%inclusion16 decks86 decks
Mana Drain
19%inclusion16 decks86 decks
Swan Song
19%inclusion16 decks86 decks
Resculpt
16%inclusion14 decks86 decks
Masterful Replication
15%inclusion13 decks86 decks
Shore Up
14%inclusion12 decks86 decks
Muddle the Mixture
14%inclusion12 decks86 decks
Dramatic Reversal
14%inclusion12 decks86 decks
Deflecting Swat
13%inclusion11 decks86 decks
Brainstorm
12%inclusion10 decks86 decks
Demand Answers
10%inclusion9 decks86 decks
Thirst for Knowledge
9.3%inclusion8 decks86 decks
Sink into Stupor
9.3%inclusion8 decks86 decks
Stoic Rebuttal
8.1%inclusion7 decks86 decks
Unexpected Windfall
8.1%inclusion7 decks86 decks
Valakut Awakening
7.0%inclusion6 decks86 decks
Abrade
7.0%inclusion6 decks86 decks
Frantic Search
7.0%inclusion6 decks86 decks
Machinate
5.8%inclusion5 decks86 decks
Galvanic Blast
5.8%inclusion5 decks86 decks
Cerulean Wisps
5.8%inclusion5 decks86 decks
Aetherize
5.8%inclusion5 decks86 decks
Sorceries
Fabricate
34%inclusion29 decks86 decks
Voyage Home
25%inclusion3 decks12 decks
Trash for Treasure
24%inclusion21 decks86 decks
Scrap Mastery
20%inclusion17 decks86 decks
One with the Machine
20%inclusion17 decks86 decks
Recommission
18%inclusion3 decks17 decks
Jolted Awake
18%inclusion3 decks17 decks
Organic Extinction
18%inclusion3 decks17 decks
Sevinne's Reclamation
18%inclusion3 decks17 decks
Reverse Engineer
17%inclusion15 decks86 decks
Nahiri's Lithoforming
15%inclusion13 decks86 decks
Season of Weaving
13%inclusion11 decks84 decks
Vandalblast
12%inclusion10 decks86 decks
Faithless Looting
12%inclusion10 decks86 decks
Rise and Shine
10%inclusion9 decks86 decks
Rite of Replication
10%inclusion9 decks86 decks
Reshape
9.3%inclusion8 decks86 decks
Saheeli's Directive
7.0%inclusion6 decks86 decks
Transmute Artifact
7.0%inclusion6 decks86 decks
Windfall
7.0%inclusion6 decks86 decks
Utility Artifacts
Lightning Greaves
37%inclusion32 decks86 decks
Krark-Clan Ironworks
35%inclusion30 decks86 decks
Wayfarer's Bauble
35%inclusion30 decks86 decks
Cranial Ram
33%inclusion3 decks9 decks
Time Sieve
33%inclusion3 decks9 decks
Unwinding Clock
33%inclusion28 decks86 decks
Swiftfoot Boots
28%inclusion24 decks86 decks
Sting, the Glinting Dagger
27%inclusion23 decks86 decks
Encroaching Mycosynth
26%inclusion22 decks86 decks
Esoteric Duplicator
24%inclusion21 decks86 decks
Mycosynth Wellspring
24%inclusion21 decks86 decks
Clock of Omens
24%inclusion21 decks86 decks
Thousand-Year Elixir
24%inclusion21 decks86 decks
Sculpting Steel
24%inclusion21 decks86 decks
Mystic Forge
23%inclusion20 decks86 decks
Idol of Oblivion
22%inclusion19 decks86 decks
Prototype Portal
21%inclusion18 decks86 decks
Spine of Ish Sah
21%inclusion18 decks86 decks
Illusionist's Bracers
21%inclusion18 decks86 decks
Sewer-veillance Cam
19%inclusion3 decks16 decks
Portal to Phyrexia
19%inclusion16 decks86 decks
Staff of Domination
19%inclusion16 decks86 decks
Automated Assembly Line
18%inclusion3 decks17 decks
Shorikai, Genesis Engine
18%inclusion3 decks17 decks
Archaeomancer's Map
18%inclusion3 decks17 decks
Worldwalker Helm
17%inclusion15 decks86 decks
Chimil, the Inner Sun
17%inclusion15 decks86 decks
Liquimetal Coating
16%inclusion14 decks86 decks
Inspiring Statuary
16%inclusion14 decks86 decks
Crucible of Worlds
16%inclusion14 decks86 decks
Expedition Map
16%inclusion14 decks86 decks
Sensei's Divining Top
16%inclusion14 decks86 decks
Mirrorworks
15%inclusion13 decks86 decks
Magewright's Stone
15%inclusion13 decks86 decks
Darksteel Forge
15%inclusion13 decks86 decks
Rings of Brighthearth
15%inclusion13 decks86 decks
Simulacrum Synthesizer
14%inclusion12 decks86 decks
Mycosynth Lattice
13%inclusion11 decks86 decks
Lithoform Engine
13%inclusion11 decks86 decks
Cryogen Relic
12%inclusion5 decks41 decks
Cloud Key
12%inclusion10 decks86 decks
Prized Statue
10%inclusion9 decks86 decks
Moonsilver Key
10%inclusion9 decks86 decks
Brass's Tunnel-Grinder
10%inclusion9 decks86 decks
Insight Engine
10%inclusion4 decks42 decks
Sword of the Animist
9.3%inclusion8 decks86 decks
Darksteel Monolith
8.1%inclusion7 decks86 decks
Grinding Station
8.1%inclusion7 decks86 decks
Mishra's Bauble
8.1%inclusion7 decks86 decks
Panharmonicon
8.1%inclusion7 decks86 decks
Enchantments
Mechanized Production
27%inclusion23 decks86 decks
Storm the Vault
23%inclusion20 decks86 decks
Valakut Exploration
19%inclusion16 decks86 decks
Land Tax
18%inclusion3 decks17 decks
Trade Routes
16%inclusion14 decks86 decks
Freed from the Real
16%inclusion14 decks86 decks
Thopter Spy Network
15%inclusion13 decks86 decks
Weapons Manufacturing
14%inclusion6 decks43 decks
Excavation
13%inclusion11 decks86 decks
Ghirapur Aether Grid
13%inclusion11 decks86 decks
Intruder Alarm
12%inclusion10 decks86 decks
Retreat to Valakut
10%inclusion9 decks86 decks
Mirrodin Besieged
10%inclusion9 decks86 decks
Unstoppable Plan
7.1%inclusion5 decks70 decks
Determined Iteration
7.0%inclusion6 decks86 decks
Pemmin's Aura
7.0%inclusion6 decks86 decks
Mystic Remora
7.0%inclusion6 decks86 decks
Artificer Class
5.8%inclusion5 decks86 decks
Planeswalkers
Daretti, Scrap Savant
35%inclusion30 decks86 decks
Tezzeret the Seeker
13%inclusion11 decks86 decks
Saheeli, the Gifted
8.1%inclusion7 decks86 decks
Tezzeret, Cruel Captain
6.8%inclusion3 decks44 decks
Utility Lands
Buried Ruin
48%inclusion41 decks86 decks
Academy Ruins
47%inclusion40 decks86 decks
Treasure Vault
41%inclusion35 decks86 decks
Urza's Saga
31%inclusion27 decks86 decks
Reliquary Tower
31%inclusion27 decks86 decks
Archway of Innovation
27%inclusion23 decks86 decks
Uthros, Titanic Godcore
23%inclusion10 decks43 decks
Fomori Vault
22%inclusion19 decks86 decks
Minamo, School at Water's Edge
22%inclusion19 decks86 decks
Oboro, Palace in the Clouds
16%inclusion14 decks86 decks
Terrain Generator
15%inclusion13 decks86 decks
Vesuva
13%inclusion11 decks86 decks
Otawara, Soaring City
13%inclusion11 decks86 decks
Guildless Commons
12%inclusion10 decks86 decks
Blinkmoth Nexus
10%inclusion9 decks86 decks
Mutavault
10%inclusion9 decks86 decks
Restless Spire
10%inclusion9 decks86 decks
Valakut, the Molten Pinnacle
10%inclusion9 decks86 decks
Thespian's Stage
10%inclusion9 decks86 decks
Ghost Town
9.3%inclusion8 decks86 decks
Mystic Sanctuary
9.3%inclusion8 decks86 decks
Temple of the False God
7.0%inclusion6 decks86 decks
Tolaria West
5.8%inclusion5 decks86 decks
Arid Archway
5.8%inclusion5 decks86 decks
Rogue's Passage
5.8%inclusion5 decks86 decks
Mana Artifacts
Sol Ring
81%inclusion70 decks86 decks
Arcane Signet
80%inclusion69 decks86 decks
Dimir Signet
44%inclusion4 decks9 decks
Izzet Signet
43%inclusion37 decks86 decks
Talisman of Creativity
42%inclusion36 decks86 decks
Rakdos Signet
33%inclusion3 decks9 decks
Liquimetal Torque
33%inclusion28 decks86 decks
Fellwar Stone
30%inclusion26 decks86 decks
Boros Signet
29%inclusion5 decks17 decks
Azorius Signet
29%inclusion5 decks17 decks
Mind Stone
26%inclusion22 decks86 decks
Thought Vessel
26%inclusion22 decks86 decks
Patriar's Seal
23%inclusion20 decks86 decks
Thran Dynamo
23%inclusion20 decks86 decks
Cursed Mirror
23%inclusion20 decks86 decks
Hedron Archive
20%inclusion17 decks86 decks
Talisman of Conviction
18%inclusion3 decks17 decks
Talisman of Progress
18%inclusion3 decks17 decks
Machine God's Effigy
17%inclusion15 decks86 decks
Crystal Skull, Isu Spyglass
17%inclusion15 decks86 decks
Gilded Lotus
15%inclusion13 decks86 decks
The Mightstone and Weakstone
14%inclusion12 decks86 decks
Commander's Sphere
13%inclusion11 decks86 decks
Misleading Signpost
10%inclusion9 decks86 decks
Chromatic Lantern
10%inclusion9 decks86 decks
Coveted Jewel
9.3%inclusion8 decks86 decks
Worn Powerstone
9.3%inclusion8 decks86 decks
Mox Opal
9.3%inclusion8 decks86 decks
Basalt Monolith
8.1%inclusion7 decks86 decks
Dreamstone Hedron
7.0%inclusion6 decks86 decks
Midnight Clock
7.0%inclusion6 decks86 decks
Mox Amber
7.0%inclusion6 decks86 decks
Lotus Petal
7.0%inclusion6 decks86 decks
Chromatic Orrery
5.8%inclusion5 decks86 decks
Lands
Command Tower
79%inclusion68 decks86 decks
Silverbluff Bridge
77%inclusion66 decks86 decks
Tanglepool Bridge
75%inclusion3 decks4 decks
Slagwoods Bridge
75%inclusion3 decks4 decks
Steam Vents
65%inclusion56 decks86 decks
Hallowed Fountain
53%inclusion9 decks17 decks
Izzet Boilerworks
50%inclusion43 decks86 decks
Sulfur Falls
50%inclusion43 decks86 decks
Drossforge Bridge
44%inclusion4 decks9 decks
Mistvault Bridge
44%inclusion4 decks9 decks
Dimir Aqueduct
44%inclusion4 decks9 decks
Scalding Tarn
43%inclusion37 decks86 decks
Training Center
43%inclusion37 decks86 decks
Razortide Bridge
41%inclusion7 decks17 decks
Sacred Foundry
41%inclusion7 decks17 decks
Rustvale Bridge
35%inclusion6 decks17 decks
Luxury Suite
33%inclusion3 decks9 decks
Crumbling Necropolis
33%inclusion3 decks9 decks
Spectator Seating
29%inclusion5 decks17 decks
Raugrin Triome
29%inclusion5 decks17 decks
Power Depot
29%inclusion25 decks86 decks
Fabled Passage
29%inclusion25 decks86 decks
Cascade Bluffs
29%inclusion25 decks86 decks
Shivan Reef
29%inclusion25 decks86 decks
Evolving Wilds
27%inclusion23 decks86 decks
Spire of Industry
26%inclusion22 decks86 decks
Scene of the Crime
24%inclusion21 decks86 decks
Stormcarved Coast
24%inclusion21 decks86 decks
Azorius Chancery
24%inclusion4 decks17 decks
Sea of Clouds
24%inclusion4 decks17 decks
Glacial Fortress
24%inclusion4 decks17 decks
Clifftop Retreat
24%inclusion4 decks17 decks
Thundering Falls
22%inclusion19 decks86 decks
Terramorphic Expanse
22%inclusion19 decks86 decks
Temple of Epiphany
22%inclusion19 decks86 decks
Exotic Orchard
21%inclusion18 decks86 decks
Boros Garrison
18%inclusion3 decks17 decks
Prairie Stream
18%inclusion3 decks17 decks
Ferrous Lake
17%inclusion15 decks86 decks
Myriad Landscape
17%inclusion15 decks86 decks
The Mycosynth Gardens
15%inclusion13 decks86 decks
Prismatic Vista
15%inclusion13 decks86 decks
Riverglide Pathway
15%inclusion13 decks86 decks
Frostboil Snarl
15%inclusion13 decks86 decks
Arid Mesa
14%inclusion12 decks86 decks
Flooded Strand
14%inclusion12 decks86 decks
Maestros Theater
13%inclusion11 decks86 decks
Urza's Cave
13%inclusion11 decks86 decks
Fiery Islet
12%inclusion10 decks86 decks
Bloodstained Mire
12%inclusion10 decks86 decks