Goblin Welder
Retreat to Coralhelm
Seat of the Synod
Ancient Den

   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 Ancient Den 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 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 blue mana
Infinite landfall triggers
Infinite white mana
Dr. Madison Li
0.2%inclusion13 decks7.30K decks
Breya, Etherium Shaper
0.0%inclusion5 decks19K decks
Ishai, Ojutai Dragonspeaker // Toggo, Goblin Weaponsmith
8.6%inclusion3 decks35 decks
Kilo, Apogee Mind
0.0%inclusion2 decks11.7K decks
Garth One-Eye
0.0%inclusion2 decks4.82K decks
Akiri, Line-Slinger // Thrasios, Triton Hero
0.1%inclusion1 decks851 decks
Optimus Prime, Hero
0.0%inclusion1 decks4.18K decks
Elsha of the Infinite
0.0%inclusion1 decks4.72K decks
Bjorna, Nightfall Alchemist // Sophina, Spearsage Deserter
0.6%inclusion1 decks181 decks
Elmar, Ulvenwald Informant // Hargilde, Kindly Runechanter
0.1%inclusion1 decks919 decks
Cayth, Famed Mechanist
0.0%inclusion1 decks4.15K decks
High Synergy Cards
Tree of Tales
100%inclusion4 decks4 decks
98%synergy
Great Furnace
100%inclusion31 decks31 decks
94%synergy
Vault of Whispers
86%inclusion6 decks7 decks
81%synergy
Dispatch
71%inclusion22 decks31 decks
65%synergy
Etherium Sculptor
71%inclusion22 decks31 decks
65%synergy
Goblin Engineer
65%inclusion20 decks31 decks
62%synergy
Inventors' Fair
61%inclusion19 decks31 decks
58%synergy
Jhoira, Weatherlight Captain
55%inclusion17 decks31 decks
49%synergy
Automated Assembly Line
45%inclusion14 decks31 decks
45%synergy
Baleful Strix
57%inclusion4 decks7 decks
44%synergy
Top Cards
Esper Sentinel
48%inclusion15 decks31 decks
29%synergy
Whirler Virtuoso
45%inclusion14 decks31 decks
44%synergy
Guide of Souls
45%inclusion14 decks31 decks
43%synergy
Foundry Inspector
45%inclusion14 decks31 decks
41%synergy
Sensei's Divining Top
45%inclusion14 decks31 decks
41%synergy
Electrostatic Pummeler
42%inclusion13 decks31 decks
42%synergy
Roil Cartographer
42%inclusion13 decks31 decks
41%synergy
Reckless Fireweaver
42%inclusion13 decks31 decks
38%synergy
An Offer You Can't Refuse
42%inclusion13 decks31 decks
17%synergy
Path to Exile
42%inclusion13 decks31 decks
-5%synergy
Game Changers
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26%inclusion8 decks31 decks
10%synergy
Cyclonic Rift
26%inclusion8 decks31 decks
3%synergy
Mana Vault
23%inclusion7 decks31 decks
17%synergy
Chrome Mox
23%inclusion7 decks31 decks
17%synergy
Rhystic Study
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-1%synergy
Teferi's Protection
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-4%synergy
Creatures
Phyrexian Metamorph
39%inclusion12 decks31 decks
31%synergy
Depthshaker Titan
38%inclusion3 decks8 decks
36%synergy
Ruin Ghost
35%inclusion11 decks31 decks
35%synergy
Vedalken Archmage
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34%synergy
Kappa Cannoneer
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32%synergy
Emry, Lurker of the Loch
35%inclusion11 decks31 decks
31%synergy
Riptide Gearhulk
33%inclusion7 decks21 decks
31%synergy
Master Transmuter
32%inclusion10 decks31 decks
31%synergy
The Reality Chip
32%inclusion10 decks31 decks
29%synergy
Enthusiastic Mechanaut
32%inclusion10 decks31 decks
28%synergy
Solemn Simulacrum
32%inclusion10 decks31 decks
20%synergy
Blaster Hulk
29%inclusion9 decks31 decks
29%synergy
Thought Monitor
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25%synergy
Imperial Recruiter
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24%synergy
Assaultron Dominator
26%inclusion8 decks31 decks
25%synergy
Teshar, Ancestor's Apostle
23%inclusion7 decks31 decks
21%synergy
Urza, Lord High Artificer
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19%synergy
Spellskite
23%inclusion7 decks31 decks
19%synergy
Aurora Shifter
19%inclusion6 decks31 decks
19%synergy
Brotherhood Scribe
19%inclusion6 decks31 decks
19%synergy
Myr Retriever
19%inclusion6 decks31 decks
18%synergy
Hullbreaker Horror
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11%synergy
Lightning Runner
16%inclusion5 decks31 decks
15%synergy
Urza, Lord Protector
16%inclusion5 decks31 decks
15%synergy
Liberty Prime, Recharged
16%inclusion5 decks31 decks
15%synergy
Lion Sash
16%inclusion5 decks31 decks
14%synergy
Ornithopter of Paradise
16%inclusion5 decks31 decks
12%synergy
Mendicant Core, Guidelight
14%inclusion3 decks21 decks
13%synergy
Marvin, Murderous Mimic
14%inclusion4 decks29 decks
12%synergy
Salvager of Ruin
13%inclusion4 decks31 decks
13%synergy
Aethergeode Miner
13%inclusion4 decks31 decks
13%synergy
Walking Atlas
13%inclusion4 decks31 decks
12%synergy
Glaring Fleshraker
13%inclusion4 decks31 decks
12%synergy
Ethersworn Canonist
13%inclusion4 decks31 decks
12%synergy
Sphinx of the Revelation
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12%synergy
Volatile Stormdrake
13%inclusion4 decks31 decks
11%synergy
Brudiclad, Telchor Engineer
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10%synergy
Burnished Hart
13%inclusion4 decks31 decks
10%synergy
Sai, Master Thopterist
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9%synergy
Sage of Lat-Nam
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10%synergy
Trove Warden
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9%synergy
Scaretiller
10%inclusion3 decks31 decks
9%synergy
Thopter Assembly
10%inclusion3 decks31 decks
9%synergy
Quicksmith Genius
10%inclusion3 decks31 decks
9%synergy
Aetherstorm Roc
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9%synergy
Toggo, Goblin Weaponsmith
10%inclusion3 decks31 decks
9%synergy
Dreamscape Artist
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9%synergy
Paladin Danse, Steel Maverick
10%inclusion3 decks31 decks
9%synergy
Kuldotha Forgemaster
10%inclusion3 decks31 decks
9%synergy
Junk Diver
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9%synergy
Instants
Tune the Narrative
35%inclusion11 decks31 decks
35%synergy
Swan Song
35%inclusion11 decks31 decks
18%synergy
Swords to Plowshares
35%inclusion11 decks31 decks
-26%synergy
Galvanic Discharge
32%inclusion10 decks31 decks
32%synergy
Electrosiphon
26%inclusion8 decks31 decks
24%synergy
Whir of Invention
23%inclusion7 decks31 decks
20%synergy
Sejiri Shelter
23%inclusion7 decks31 decks
19%synergy
Silence
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16%synergy
Glimmer of Genius
19%inclusion6 decks31 decks
19%synergy
Rush of Inspiration
19%inclusion6 decks31 decks
18%synergy
Dramatic Reversal
19%inclusion6 decks31 decks
15%synergy
Harnessed Lightning
16%inclusion5 decks31 decks
16%synergy
Thirst for Knowledge
16%inclusion5 decks31 decks
15%synergy
Counterspell
16%inclusion5 decks31 decks
-26%synergy
Mana Drain
13%inclusion4 decks31 decks
-2%synergy
Arcane Denial
13%inclusion4 decks31 decks
-7%synergy
Aether Spike
10%inclusion3 decks31 decks
9%synergy
Radstorm
10%inclusion3 decks31 decks
8%synergy
Kabira Takedown
10%inclusion3 decks31 decks
8%synergy
Razorgrass Ambush
10%inclusion3 decks31 decks
8%synergy
Aetherize
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3%synergy
Dovin's Veto
10%inclusion3 decks31 decks
-9%synergy
Sorceries
Fabricate
35%inclusion11 decks31 decks
30%synergy
Jolted Awake
32%inclusion10 decks31 decks
32%synergy
Wrath of the Skies
29%inclusion9 decks31 decks
29%synergy
Thoughtcast
19%inclusion6 decks31 decks
16%synergy
Wake the Past
19%inclusion6 decks31 decks
16%synergy
Sea Gate Restoration
16%inclusion5 decks31 decks
12%synergy
Sevinne's Reclamation
16%inclusion5 decks31 decks
9%synergy
Localized Destruction
13%inclusion4 decks31 decks
12%synergy
Nahiri's Lithoforming
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12%synergy
Organic Extinction
13%inclusion4 decks31 decks
10%synergy
Universal Surveillance
10%inclusion3 decks31 decks
9%synergy
Tezzeret's Gambit
10%inclusion3 decks31 decks
6%synergy
Ponder
10%inclusion3 decks31 decks
-2%synergy
Farewell
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-3%synergy
Faithless Looting
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-6%synergy
Utility Artifacts
Decoction Module
39%inclusion12 decks31 decks
38%synergy
Gonti's Aether Heart
39%inclusion12 decks31 decks
38%synergy
Unstable Amulet
39%inclusion12 decks31 decks
38%synergy
Izzet Generatorium
39%inclusion12 decks31 decks
37%synergy
Cloud Key
39%inclusion12 decks31 decks
37%synergy
Aether Refinery
35%inclusion11 decks31 decks
35%synergy
Mishra's Bauble
35%inclusion11 decks31 decks
34%synergy
Shorikai, Genesis Engine
35%inclusion11 decks31 decks
33%synergy
Panharmonicon
35%inclusion11 decks31 decks
31%synergy
Portal to Phyrexia
29%inclusion9 decks31 decks
28%synergy
Wayfarer's Bauble
29%inclusion9 decks31 decks
21%synergy
Skullclamp
29%inclusion9 decks31 decks
18%synergy
Aetherflux Conduit
29%inclusion6 decks21 decks
28%synergy
Krark-Clan Ironworks
26%inclusion8 decks31 decks
25%synergy
Unwinding Clock
26%inclusion8 decks31 decks
23%synergy
Ichor Wellspring
23%inclusion7 decks31 decks
21%synergy
Sculpting Steel
23%inclusion7 decks31 decks
21%synergy
Dynavolt Tower
19%inclusion6 decks31 decks
19%synergy
Aetherworks Marvel
19%inclusion6 decks31 decks
19%synergy
Isochron Scepter
19%inclusion6 decks31 decks
17%synergy
Glass Casket
16%inclusion5 decks31 decks
16%synergy
Portable Hole
13%inclusion4 decks31 decks
13%synergy
Mirrorworks
13%inclusion4 decks31 decks
12%synergy
Encroaching Mycosynth
13%inclusion4 decks31 decks
12%synergy
Mystic Forge
13%inclusion4 decks31 decks
10%synergy
Ashnod's Altar
13%inclusion4 decks31 decks
6%synergy
Lightning Greaves
13%inclusion4 decks31 decks
-12%synergy
Sword of the Meek
10%inclusion3 decks31 decks
9%synergy
Dowsing Device
10%inclusion3 decks31 decks
9%synergy
Thornbite Staff
10%inclusion3 decks31 decks
9%synergy
Mycosynth Lattice
10%inclusion3 decks31 decks
9%synergy
Clock of Omens
10%inclusion3 decks31 decks
9%synergy
Soul-Guide Lantern
10%inclusion3 decks31 decks
9%synergy
Amulet of Vigor
10%inclusion3 decks31 decks
8%synergy
Crucible of Worlds
10%inclusion3 decks31 decks
7%synergy
Archaeomancer's Map
10%inclusion3 decks31 decks
6%synergy
Sword of the Animist
10%inclusion3 decks31 decks
5%synergy
Swiftfoot Boots
10%inclusion3 decks31 decks
-18%synergy
Enchantments
Aether Revolt
39%inclusion12 decks31 decks
38%synergy
All Will Be One
26%inclusion8 decks31 decks
24%synergy
Mechanized Production
19%inclusion6 decks31 decks
16%synergy
Storm the Vault
16%inclusion5 decks31 decks
14%synergy
Unstoppable Plan
14%inclusion3 decks21 decks
12%synergy
Felidar Retreat
13%inclusion4 decks31 decks
7%synergy
Whirlwind of Thought
13%inclusion4 decks31 decks
4%synergy
Era of Innovation
10%inclusion3 decks31 decks
9%synergy
Bitter Reunion
10%inclusion3 decks31 decks
8%synergy
Mystic Remora
10%inclusion3 decks31 decks
-7%synergy
Planeswalkers
Daretti, Scrap Savant
13%inclusion4 decks31 decks
11%synergy
Utility Lands
Darksteel Citadel
39%inclusion12 decks31 decks
35%synergy
Fomori Vault
35%inclusion11 decks31 decks
34%synergy
Urza's Saga
29%inclusion9 decks31 decks
22%synergy
Treasure Vault
23%inclusion7 decks31 decks
20%synergy
Reliquary Tower
23%inclusion7 decks31 decks
-7%synergy
HELIOS One
16%inclusion5 decks31 decks
16%synergy
Archway of Innovation
16%inclusion5 decks31 decks
13%synergy
Academy Ruins
16%inclusion5 decks31 decks
11%synergy
Amonkhet Raceway
14%inclusion3 decks21 decks
13%synergy
Muraganda Raceway
14%inclusion3 decks21 decks
13%synergy
Oboro, Palace in the Clouds
10%inclusion3 decks31 decks
9%synergy
Castle Vantress
10%inclusion3 decks31 decks
6%synergy
Mana Artifacts
Sol Ring
81%inclusion25 decks31 decks
-3%synergy
Arcane Signet
71%inclusion22 decks31 decks
-1%synergy
Talisman of Creativity
48%inclusion15 decks31 decks
20%synergy
Everflowing Chalice
35%inclusion11 decks31 decks
31%synergy
Mox Amber
35%inclusion11 decks31 decks
31%synergy
Mox Opal
29%inclusion9 decks31 decks
25%synergy
Paradise Mantle
23%inclusion7 decks31 decks
22%synergy
Lotus Petal
23%inclusion7 decks31 decks
16%synergy
Chromatic Lantern
23%inclusion7 decks31 decks
14%synergy
Talisman of Progress
23%inclusion7 decks31 decks
-3%synergy
Solar Transformer
19%inclusion6 decks31 decks
19%synergy
Fellwar Stone
19%inclusion6 decks31 decks
-1%synergy
Aetheric Amplifier
19%inclusion4 decks21 decks
18%synergy
Machine God's Effigy
13%inclusion4 decks31 decks
12%synergy
Cursed Mirror
13%inclusion4 decks31 decks
7%synergy
Commander's Sphere
13%inclusion4 decks31 decks
1%synergy
Thought Vessel
13%inclusion4 decks31 decks
-5%synergy
Talisman of Conviction
13%inclusion4 decks31 decks
-11%synergy
Conversion Apparatus
10%inclusion3 decks31 decks
9%synergy
Liquimetal Torque
10%inclusion3 decks31 decks
7%synergy
Mind Stone
10%inclusion3 decks31 decks
-5%synergy
Boros Signet
10%inclusion3 decks31 decks
-10%synergy
Azorius Signet
10%inclusion3 decks31 decks
-12%synergy
Izzet Signet
10%inclusion3 decks31 decks
-14%synergy
Lands
Command Tower
94%inclusion29 decks31 decks
19%synergy
Slagwoods Bridge
75%inclusion3 decks4 decks
73%synergy
Tanglepool Bridge
75%inclusion3 decks4 decks
73%synergy
Ketria Triome
75%inclusion3 decks4 decks
44%synergy
Spire of Industry
65%inclusion20 decks31 decks
61%synergy
Steam Vents
65%inclusion20 decks31 decks
26%synergy
Hallowed Fountain
65%inclusion20 decks31 decks
25%synergy
Sacred Foundry
61%inclusion19 decks31 decks
25%synergy
Luxury Suite
57%inclusion4 decks7 decks
33%synergy
Training Center
52%inclusion16 decks31 decks
27%synergy
Glacial Fortress
52%inclusion16 decks31 decks
19%synergy
Sulfur Falls
52%inclusion16 decks31 decks
17%synergy
Clifftop Retreat
48%inclusion15 decks31 decks
13%synergy
Flooded Strand
45%inclusion14 decks31 decks
34%synergy
Raugrin Triome
45%inclusion14 decks31 decks
21%synergy
Sea of Clouds
45%inclusion14 decks31 decks
21%synergy
Vault of Champions
43%inclusion3 decks7 decks
19%synergy
Aether Hub
42%inclusion13 decks31 decks
41%synergy
Arid Mesa
42%inclusion13 decks31 decks
32%synergy
Scalding Tarn
42%inclusion13 decks31 decks
31%synergy
Exotic Orchard
39%inclusion12 decks31 decks
2%synergy
Razortide Bridge
35%inclusion11 decks31 decks
29%synergy
Silverbluff Bridge
32%inclusion10 decks31 decks
26%synergy
Rustvale Bridge
29%inclusion9 decks31 decks
23%synergy
Cascade Bluffs
29%inclusion9 decks31 decks
15%synergy
Spectator Seating
29%inclusion9 decks31 decks
6%synergy
Stormcarved Coast
26%inclusion8 decks31 decks
7%synergy
Battlefield Forge
26%inclusion8 decks31 decks
-3%synergy
Fabled Passage
23%inclusion7 decks31 decks
13%synergy
Mana Confluence
19%inclusion6 decks31 decks
12%synergy
Riverglide Pathway
19%inclusion6 decks31 decks
12%synergy
Thundering Falls
19%inclusion6 decks31 decks
10%synergy
Deserted Beach
19%inclusion6 decks31 decks
2%synergy
Adarkar Wastes
19%inclusion6 decks31 decks
-4%synergy
Reflecting Pool
16%inclusion5 decks31 decks
11%synergy
Elegant Parlor
16%inclusion5 decks31 decks
9%synergy
Meticulous Archive
16%inclusion5 decks31 decks
8%synergy
Terramorphic Expanse
16%inclusion5 decks31 decks
1%synergy
Evolving Wilds
16%inclusion5 decks31 decks
-5%synergy
Mystic Monastery
16%inclusion5 decks31 decks
-12%synergy
Shivan Reef
16%inclusion5 decks31 decks
-13%synergy
The Mycosynth Gardens
13%inclusion4 decks31 decks
11%synergy
Hengegate Pathway
13%inclusion4 decks31 decks
7%synergy
City of Brass
13%inclusion4 decks31 decks
5%synergy
Needleverge Pathway
13%inclusion4 decks31 decks
5%synergy
Bloodstained Mire
13%inclusion4 decks31 decks
2%synergy
Power Depot
10%inclusion3 decks31 decks
9%synergy
Ash Barrens
10%inclusion3 decks31 decks
5%synergy
Polluted Delta
10%inclusion3 decks31 decks
-2%synergy
Boros Garrison
10%inclusion3 decks31 decks
-3%synergy