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%inclusion14 decks7.16K decks
Breya, Etherium Shaper
0.0%inclusion4 decks18.9K decks
Ishai, Ojutai Dragonspeaker // Toggo, Goblin Weaponsmith
5.4%inclusion2 decks37 decks
Akiri, Line-Slinger // Thrasios, Triton Hero
0.1%inclusion1 decks828 decks
Kilo, Apogee Mind
0.0%inclusion1 decks9.83K decks
Liberty Prime, Recharged
0.0%inclusion1 decks5.25K decks
Optimus Prime, Hero
0.0%inclusion1 decks4.20K decks
Elsha of the Infinite
0.0%inclusion1 decks4.75K decks
Garth One-Eye
0.0%inclusion1 decks4.81K decks
Bjorna, Nightfall Alchemist // Sophina, Spearsage Deserter
0.5%inclusion1 decks184 decks
Elmar, Ulvenwald Informant // Hargilde, Kindly Runechanter
0.1%inclusion1 decks873 decks
Cayth, Famed Mechanist
0.0%inclusion1 decks3.92K decks
High Synergy Cards
Great Furnace
100%inclusion29 decks29 decks
94%synergy
Vault of Whispers
80%inclusion4 decks5 decks
76%synergy
Etherium Sculptor
79%inclusion23 decks29 decks
74%synergy
Dispatch
76%inclusion22 decks29 decks
70%synergy
Goblin Engineer
66%inclusion19 decks29 decks
63%synergy
Inventors' Fair
66%inclusion19 decks29 decks
62%synergy
Guide of Souls
54%inclusion15 decks28 decks
51%synergy
Automated Assembly Line
52%inclusion15 decks29 decks
51%synergy
Foundry Inspector
55%inclusion16 decks29 decks
51%synergy
Whirler Virtuoso
52%inclusion15 decks29 decks
50%synergy
Top Cards
Jhoira, Weatherlight Captain
55%inclusion16 decks29 decks
49%synergy
Esper Sentinel
55%inclusion16 decks29 decks
36%synergy
Sensei's Divining Top
52%inclusion15 decks29 decks
47%synergy
Roil Cartographer
50%inclusion14 decks28 decks
49%synergy
Electrostatic Pummeler
48%inclusion14 decks29 decks
48%synergy
Decoction Module
48%inclusion14 decks29 decks
48%synergy
An Offer You Can't Refuse
48%inclusion14 decks29 decks
24%synergy
Path to Exile
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1%synergy
Aether Revolt
46%inclusion13 decks28 decks
46%synergy
Izzet Generatorium
46%inclusion13 decks28 decks
45%synergy
Game Changers
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34%inclusion10 decks29 decks
11%synergy
Mana Vault
31%inclusion9 decks29 decks
25%synergy
Enlightened Tutor
31%inclusion9 decks29 decks
15%synergy
Chrome Mox
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18%synergy
Rhystic Study
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-4%synergy
Teferi's Protection
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0%synergy
Creatures
Baleful Strix
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47%synergy
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37%synergy
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41%inclusion12 decks29 decks
40%synergy
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37%synergy
Riptide Gearhulk
41%inclusion7 decks17 decks
39%synergy
The Reality Chip
38%inclusion11 decks29 decks
35%synergy
Ruin Ghost
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34%synergy
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32%synergy
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30%synergy
Blaster Hulk
32%inclusion9 decks28 decks
32%synergy
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31%inclusion9 decks29 decks
31%synergy
Master Transmuter
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30%synergy
Thought Monitor
31%inclusion9 decks29 decks
27%synergy
Emry, Lurker of the Loch
31%inclusion9 decks29 decks
27%synergy
Brotherhood Scribe
28%inclusion8 decks29 decks
27%synergy
Teshar, Ancestor's Apostle
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26%synergy
Spellskite
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24%synergy
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28%inclusion8 decks29 decks
23%synergy
Solemn Simulacrum
28%inclusion8 decks29 decks
15%synergy
Hullbreaker Horror
24%inclusion7 decks29 decks
16%synergy
Aurora Shifter
21%inclusion6 decks28 decks
21%synergy
Liberty Prime, Recharged
21%inclusion6 decks29 decks
19%synergy
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21%inclusion6 decks29 decks
19%synergy
Urza, Lord High Artificer
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17%synergy
Volatile Stormdrake
18%inclusion5 decks28 decks
16%synergy
Mendicant Core, Guidelight
18%inclusion3 decks17 decks
16%synergy
Aethergeode Miner
17%inclusion5 decks29 decks
17%synergy
Lightning Runner
17%inclusion5 decks29 decks
17%synergy
Urza, Lord Protector
17%inclusion5 decks29 decks
16%synergy
Lion Sash
17%inclusion5 decks29 decks
15%synergy
Ornithopter of Paradise
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13%synergy
Marvin, Murderous Mimic
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15%synergy
Glaring Fleshraker
14%inclusion4 decks28 decks
13%synergy
Sphinx of the Revelation
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13%synergy
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14%inclusion4 decks29 decks
14%synergy
Ethersworn Canonist
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12%synergy
Palladium Myr
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12%synergy
Sai, Master Thopterist
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10%synergy
Satya, Aetherflux Genius
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10%synergy
Scaretiller
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10%synergy
Thopter Assembly
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10%synergy
Aetherstorm Roc
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10%synergy
Paladin Danse, Steel Maverick
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10%synergy
Walking Atlas
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10%synergy
Kuldotha Forgemaster
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10%synergy
Junk Diver
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10%synergy
Oswald Fiddlebender
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9%synergy
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9%synergy
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8%synergy
Combustible Gearhulk
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7%synergy
Instants
Tune the Narrative
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42%synergy
Galvanic Discharge
39%inclusion11 decks28 decks
39%synergy
Swords to Plowshares
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-24%synergy
Electrosiphon
31%inclusion9 decks29 decks
30%synergy
Swan Song
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14%synergy
Sejiri Shelter
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24%synergy
Silence
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21%synergy
Rush of Inspiration
25%inclusion7 decks28 decks
24%synergy
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24%synergy
Whir of Invention
21%inclusion6 decks29 decks
18%synergy
Dramatic Reversal
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16%synergy
Harnessed Lightning
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17%synergy
Counterspell
17%inclusion5 decks29 decks
-25%synergy
Aether Spike
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14%synergy
Radstorm
14%inclusion4 decks29 decks
13%synergy
Kabira Takedown
14%inclusion4 decks29 decks
12%synergy
Thirst for Knowledge
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12%synergy
Mana Drain
14%inclusion4 decks29 decks
-1%synergy
Razorgrass Ambush
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9%synergy
Aetherize
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4%synergy
Arcane Denial
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-10%synergy
Sorceries
Fabricate
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36%synergy
Jolted Awake
39%inclusion11 decks28 decks
39%synergy
Wrath of the Skies
36%inclusion10 decks28 decks
35%synergy
Thoughtcast
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14%synergy
Wake the Past
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14%synergy
Sea Gate Restoration
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13%synergy
Localized Destruction
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14%synergy
Wheel of Potential
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10%synergy
Organic Extinction
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8%synergy
Sevinne's Reclamation
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3%synergy
Ponder
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-1%synergy
Farewell
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-3%synergy
Faithless Looting
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-6%synergy
Utility Artifacts
Gonti's Aether Heart
45%inclusion13 decks29 decks
44%synergy
Aether Refinery
43%inclusion12 decks28 decks
42%synergy
Unstable Amulet
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42%synergy
Mishra's Bauble
41%inclusion12 decks29 decks
40%synergy
Cloud Key
41%inclusion12 decks29 decks
39%synergy
Shorikai, Genesis Engine
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39%synergy
Panharmonicon
38%inclusion11 decks29 decks
34%synergy
Aetherflux Conduit
35%inclusion6 decks17 decks
35%synergy
Portal to Phyrexia
34%inclusion10 decks29 decks
33%synergy
Skullclamp
34%inclusion10 decks29 decks
23%synergy
Aetherworks Marvel
28%inclusion8 decks29 decks
27%synergy
Unwinding Clock
28%inclusion8 decks29 decks
25%synergy
Ichor Wellspring
24%inclusion7 decks29 decks
23%synergy
Isochron Scepter
24%inclusion7 decks29 decks
22%synergy
Dynavolt Tower
21%inclusion6 decks29 decks
21%synergy
Glass Casket
21%inclusion6 decks29 decks
21%synergy
Krark-Clan Ironworks
21%inclusion6 decks29 decks
20%synergy
Sculpting Steel
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19%synergy
Mystic Forge
21%inclusion6 decks29 decks
18%synergy
Wayfarer's Bauble
21%inclusion6 decks29 decks
13%synergy
Portable Hole
17%inclusion5 decks29 decks
17%synergy
Encroaching Mycosynth
14%inclusion4 decks29 decks
13%synergy
Ashnod's Altar
14%inclusion4 decks29 decks
7%synergy
Lightning Greaves
14%inclusion4 decks29 decks
-11%synergy
Sword of the Meek
10%inclusion3 decks29 decks
10%synergy
Mirrorworks
10%inclusion3 decks29 decks
10%synergy
Thornbite Staff
10%inclusion3 decks29 decks
10%synergy
Clock of Omens
10%inclusion3 decks29 decks
9%synergy
Swiftfoot Boots
10%inclusion3 decks29 decks
-17%synergy
Enchantments
All Will Be One
31%inclusion9 decks29 decks
29%synergy
Mechanized Production
21%inclusion6 decks29 decks
18%synergy
Unstoppable Plan
18%inclusion3 decks17 decks
16%synergy
Era of Innovation
14%inclusion4 decks29 decks
13%synergy
Storm the Vault
14%inclusion4 decks29 decks
11%synergy
Whirlwind of Thought
14%inclusion4 decks29 decks
5%synergy
Mystic Remora
14%inclusion4 decks29 decks
-3%synergy
Bitter Reunion
10%inclusion3 decks29 decks
9%synergy
Planeswalkers
Daretti, Scrap Savant
17%inclusion5 decks29 decks
15%synergy
Utility Lands
Tree of Tales
100%inclusion3 decks3 decks
98%synergy
Fomori Vault
41%inclusion12 decks29 decks
40%synergy
Darksteel Citadel
38%inclusion11 decks29 decks
34%synergy
Urza's Saga
28%inclusion8 decks29 decks
21%synergy
Treasure Vault
24%inclusion7 decks29 decks
22%synergy
HELIOS One
21%inclusion6 decks29 decks
20%synergy
Reliquary Tower
21%inclusion6 decks29 decks
-9%synergy
Archway of Innovation
18%inclusion5 decks28 decks
15%synergy
Amonkhet Raceway
18%inclusion3 decks17 decks
17%synergy
Muraganda Raceway
18%inclusion3 decks17 decks
16%synergy
Academy Ruins
17%inclusion5 decks29 decks
12%synergy
Oboro, Palace in the Clouds
10%inclusion3 decks29 decks
10%synergy
Mana Artifacts
Sol Ring
86%inclusion25 decks29 decks
2%synergy
Arcane Signet
79%inclusion23 decks29 decks
7%synergy
Talisman of Creativity
55%inclusion16 decks29 decks
27%synergy
Everflowing Chalice
38%inclusion11 decks29 decks
34%synergy
Mox Amber
38%inclusion11 decks29 decks
33%synergy
Mox Opal
31%inclusion9 decks29 decks
27%synergy
Lotus Petal
28%inclusion8 decks29 decks
21%synergy
Talisman of Progress
28%inclusion8 decks29 decks
2%synergy
Paradise Mantle
24%inclusion7 decks29 decks
23%synergy
Aetheric Amplifier
24%inclusion4 decks17 decks
23%synergy
Solar Transformer
21%inclusion6 decks28 decks
21%synergy
Chromatic Lantern
17%inclusion5 decks29 decks
9%synergy
Thought Vessel
17%inclusion5 decks29 decks
0%synergy
Fellwar Stone
17%inclusion5 decks29 decks
-3%synergy
Conversion Apparatus
14%inclusion4 decks28 decks
14%synergy
Machine God's Effigy
14%inclusion4 decks29 decks
13%synergy
Cursed Mirror
14%inclusion4 decks29 decks
8%synergy
Talisman of Conviction
14%inclusion4 decks29 decks
-11%synergy
Commander's Sphere
10%inclusion3 decks29 decks
-2%synergy
Lands
Command Tower
97%inclusion28 decks29 decks
22%synergy
Spire of Industry
69%inclusion20 decks29 decks
66%synergy
Sacred Foundry
69%inclusion20 decks29 decks
33%synergy
Steam Vents
69%inclusion20 decks29 decks
31%synergy
Hallowed Fountain
69%inclusion20 decks29 decks
29%synergy
Luxury Suite
60%inclusion3 decks5 decks
35%synergy
Glacial Fortress
59%inclusion17 decks29 decks
27%synergy
Sulfur Falls
59%inclusion17 decks29 decks
24%synergy
Training Center
55%inclusion16 decks29 decks
30%synergy
Clifftop Retreat
55%inclusion16 decks29 decks
21%synergy
Aether Hub
52%inclusion15 decks29 decks
51%synergy
Sea of Clouds
52%inclusion15 decks29 decks
27%synergy
Arid Mesa
45%inclusion13 decks29 decks
35%synergy
Flooded Strand
45%inclusion13 decks29 decks
33%synergy
Raugrin Triome
45%inclusion13 decks29 decks
20%synergy
Scalding Tarn
41%inclusion12 decks29 decks
31%synergy
Exotic Orchard
34%inclusion10 decks29 decks
-2%synergy
Razortide Bridge
31%inclusion9 decks29 decks
24%synergy
Spectator Seating
31%inclusion9 decks29 decks
8%synergy
Battlefield Forge
31%inclusion9 decks29 decks
3%synergy
Cascade Bluffs
28%inclusion8 decks29 decks
13%synergy
Stormcarved Coast
28%inclusion8 decks29 decks
8%synergy
Rustvale Bridge
24%inclusion7 decks29 decks
19%synergy
Silverbluff Bridge
24%inclusion7 decks29 decks
18%synergy
Riverglide Pathway
21%inclusion6 decks29 decks
13%synergy
Thundering Falls
21%inclusion6 decks29 decks
12%synergy
Deserted Beach
21%inclusion6 decks29 decks
4%synergy
Reflecting Pool
17%inclusion5 decks29 decks
12%synergy
Hengegate Pathway
17%inclusion5 decks29 decks
11%synergy
Mana Confluence
17%inclusion5 decks29 decks
10%synergy
Elegant Parlor
17%inclusion5 decks29 decks
10%synergy
Needleverge Pathway
17%inclusion5 decks29 decks
9%synergy
Meticulous Archive
17%inclusion5 decks29 decks
9%synergy
Fabled Passage
17%inclusion5 decks29 decks
8%synergy
Adarkar Wastes
17%inclusion5 decks29 decks
-6%synergy
Mystic Monastery
14%inclusion4 decks29 decks
-15%synergy
Shivan Reef
14%inclusion4 decks29 decks
-15%synergy
Glimmervoid
10%inclusion3 decks29 decks
10%synergy
Power Depot
10%inclusion3 decks29 decks
10%synergy
City of Brass
10%inclusion3 decks29 decks
3%synergy
Bloodstained Mire
10%inclusion3 decks29 decks
-1%synergy
Plateau
10%inclusion3 decks29 decks
-2%synergy
Boros Garrison
10%inclusion3 decks29 decks
-3%synergy
Azorius Chancery
10%inclusion3 decks29 decks
-3%synergy
Volcanic Island
10%inclusion3 decks29 decks
-4%synergy
Terramorphic Expanse
10%inclusion3 decks29 decks
-5%synergy
Myriad Landscape
10%inclusion3 decks29 decks
-6%synergy
Evolving Wilds
10%inclusion3 decks29 decks
-10%synergy
Path of Ancestry
10%inclusion3 decks29 decks
-12%synergy
Prairie Stream
10%inclusion3 decks29 decks
-23%synergy