Goblin Welder + Retreat to Coralhelm + Darksteel Citadel + Great Furnace

Goblin Welder
Retreat to Coralhelm
Darksteel Citadel
Great Furnace

Requires
Goblin Welder must be on the battlefield. Retreat to Coralhelm must be on the battlefield. Darksteel Citadel must be in the graveyard. Great Furnace must be on the battlefield. Goblin Welder does not have summoning sickness.
Steps
  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 c.
  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 r.
  7. Repeat.
Results
Infinite colorless mana. Infinite landfall triggers. Infinite red mana.

Top Commanders (2)
Glacian, Powerstone Engineer // Toggo, Goblin Weaponsmith
4.96% of 121 decks 6 decks
Jhoira, Ageless Innovator
1.12% of 2235 decks 25 decks
Top Cards (10)
Emry, Lurker of the Loch
62% of 60 decks +60% synergy
Solemn Simulacrum
62% of 60 decks +47% synergy
Master Transmuter
60% of 60 decks +59% synergy
Etherium Sculptor
58% of 60 decks +56% synergy
Esper Sentinel
57% of 7 decks +47% synergy
Swords to Plowshares
57% of 7 decks +29% synergy
Reckless Fireweaver
57% of 60 decks +54% synergy
Goblin Engineer
55% of 60 decks +53% synergy
Chaos Warp
55% of 60 decks +39% synergy
Jhoira, Weatherlight Captain
52% of 60 decks +50% synergy
Creatures (50)
Tireless Provisioner
100% of 3 decks +95% synergy
Enthusiastic Mechanaut
51% of 57 decks +50% synergy
Sai, Master Thopterist
48% of 60 decks +46% synergy
Thought Monitor
44% of 59 decks +43% synergy
Ruin Ghost
43% of 7 decks +43% synergy
Myr Battlesphere
42% of 60 decks +39% synergy
Phyrexian Metamorph
42% of 60 decks +38% synergy
Padeem, Consul of Innovation
40% of 60 decks +38% synergy
Foundry Inspector
40% of 60 decks +36% synergy
Ob Nixilis, the Fallen
36% of 11 decks +36% synergy
Ingenious Artillerist
35% of 51 decks +34% synergy
Scrap Trawler
35% of 60 decks +33% synergy
Myr Retriever
35% of 60 decks +33% synergy
Cyberdrive Awakener
33% of 57 decks +32% synergy
Threefold Thunderhulk
33% of 9 decks +32% synergy
The Reality Chip
33% of 57 decks +31% synergy
Kappa Cannoneer
32% of 57 decks +31% synergy
Kuldotha Forgemaster
28% of 60 decks +27% synergy
Wurmcoil Engine
28% of 60 decks +26% synergy
Disciple of the Vault
27% of 11 decks +26% synergy
Marionette Master
27% of 11 decks +25% synergy
Baleful Strix
27% of 11 decks +24% synergy
Walking Atlas
27% of 60 decks +26% synergy
Shimmer Dragon
27% of 60 decks +26% synergy
Corridor Monitor
25% of 60 decks +25% synergy
Urza, Lord High Artificer
23% of 60 decks +22% synergy
Ioreth of the Healing House
22% of 18 decks +21% synergy
Blightsteel Colossus
22% of 60 decks +20% synergy
Steel Hellkite
22% of 60 decks +19% synergy
Meteor Golem
22% of 60 decks +19% synergy
Burnished Hart
22% of 60 decks +17% synergy
Kelpie Guide
20% of 59 decks +20% synergy
Vedalken Archmage
20% of 60 decks +19% synergy
Dockside Extortionist
20% of 60 decks +12% synergy
Karn, Legacy Reforged
19% of 21 decks +18% synergy
Triplicate Titan
19% of 59 decks +18% synergy
Quicksmith Genius
18% of 60 decks +18% synergy
Metalwork Colossus
18% of 60 decks +17% synergy
Spellskite
18% of 60 decks +17% synergy
Jhoira's Familiar
18% of 60 decks +16% synergy
Mirran Spy
17% of 60 decks +16% synergy
Dreamscape Artist
17% of 60 decks +16% synergy
Scaretiller
17% of 60 decks +16% synergy
Sharding Sphinx
17% of 60 decks +16% synergy
Combustible Gearhulk
17% of 60 decks +15% synergy
Drafna, Founder of Lat-Nam
14% of 35 decks +14% synergy
Third Path Iconoclast
14% of 35 decks +12% synergy
Audacious Reshapers
14% of 59 decks +13% synergy
Vizier of Tumbling Sands
13% of 60 decks +13% synergy
Brudiclad, Telchor Engineer
13% of 60 decks +13% synergy
Instants (26)
Counterspell
48% of 60 decks +27% synergy
Whir of Invention
37% of 60 decks +35% synergy
An Offer You Can't Refuse
25% of 55 decks +15% synergy
Cyclonic Rift
25% of 60 decks +11% synergy
Arcane Denial
22% of 60 decks +12% synergy
Dramatic Reversal
20% of 60 decks +17% synergy
Thirst for Knowledge
18% of 60 decks +17% synergy
Mana Drain
18% of 60 decks +11% synergy
Negate
18% of 60 decks +7% synergy
Reality Shift
17% of 60 decks +12% synergy
Swan Song
17% of 60 decks +8% synergy
Abrade
15% of 60 decks +10% synergy
Pongify
15% of 60 decks +9% synergy
Deflecting Swat
15% of 60 decks +7% synergy
Fierce Guardianship
15% of 60 decks +6% synergy
Rapid Hybridization
12% of 60 decks +7% synergy
Brainstorm
12% of 60 decks +0% synergy
Unexpected Windfall
10% of 58 decks +7% synergy
Resculpt
10% of 59 decks +7% synergy
Wild Magic Surge
9% of 53 decks +7% synergy
Big Score
9% of 55 decks +4% synergy
Reality Heist
9% of 57 decks +9% synergy
Disruption Protocol
9% of 57 decks +8% synergy
Muddle the Mixture
8% of 60 decks +6% synergy
Mystical Tutor
8% of 60 decks +1% synergy
Thrill of Possibility
7% of 60 decks +1% synergy
Sorceries (27)
Blasphemous Act
52% of 60 decks +35% synergy
Thoughtcast
48% of 60 decks +47% synergy
Fabricate
40% of 60 decks +37% synergy
Vandalblast
28% of 60 decks +20% synergy
Toxic Deluge
27% of 11 decks +19% synergy
Feed the Swarm
27% of 11 decks +18% synergy
Demonic Tutor
27% of 11 decks +15% synergy
One with the Machine
27% of 60 decks +26% synergy
Reverse Engineer
25% of 60 decks +25% synergy
Saheeli's Directive
18% of 60 decks +18% synergy
Reshape
15% of 60 decks +14% synergy
Faithless Looting
15% of 60 decks +7% synergy
Reckless Handling
14% of 21 decks +13% synergy
Scrap Mastery
13% of 60 decks +13% synergy
Trash for Treasure
13% of 60 decks +13% synergy
Windfall
13% of 60 decks +7% synergy
Rise and Shine
12% of 59 decks +11% synergy
Jeska's Will
12% of 60 decks +3% synergy
Universal Surveillance
11% of 57 decks +10% synergy
Tezzeret's Gambit
8% of 60 decks +6% synergy
Forging the Anchor
8% of 38 decks +8% synergy
Nahiri's Lithoforming
7% of 60 decks +6% synergy
Brass's Bounty
7% of 60 decks +5% synergy
Chain Reaction
7% of 60 decks +4% synergy
Gamble
7% of 60 decks +2% synergy
Expressive Iteration
5% of 59 decks +4% synergy
Ravenform
5% of 59 decks +3% synergy
Utility Artifacts (50)
Swiftfoot Boots
45% of 60 decks +17% synergy
Archaeomancer's Map
43% of 7 decks +41% synergy
Unwinding Clock
40% of 60 decks +37% synergy
Lightning Greaves
40% of 60 decks +15% synergy
Wayfarer's Bauble
38% of 60 decks +27% synergy
Sculpting Steel
37% of 60 decks +34% synergy
Executioner's Capsule
36% of 11 decks +36% synergy
Mirrorworks
32% of 60 decks +31% synergy
Oni-Cult Anvil
30% of 10 decks +29% synergy
Krark-Clan Ironworks
30% of 60 decks +29% synergy
Crucible of Worlds
30% of 60 decks +27% synergy
Cranial Plating
27% of 11 decks +26% synergy
Bolas's Citadel
27% of 11 decks +22% synergy
Darksteel Forge
27% of 60 decks +25% synergy
Encroaching Mycosynth
25% of 32 decks +24% synergy
Clock of Omens
25% of 60 decks +24% synergy
Rings of Brighthearth
25% of 60 decks +23% synergy
Thousand-Year Elixir
25% of 60 decks +22% synergy
Sting, the Glinting Dagger
24% of 17 decks +22% synergy
Mystic Forge
23% of 60 decks +21% synergy
Sensei's Divining Top
23% of 60 decks +17% synergy
Darksteel Monolith
23% of 13 decks +22% synergy
Cloud Key
20% of 60 decks +18% synergy
Navigation Orb
20% of 51 decks +19% synergy
Tamiyo's Logbook
19% of 27 decks +18% synergy
Mycosynth Lattice
18% of 60 decks +17% synergy
Ichor Wellspring
18% of 60 decks +16% synergy
Battlemage's Bracers
17% of 59 decks +16% synergy
Magewright's Stone
17% of 60 decks +16% synergy
The One Ring
17% of 24 decks +8% synergy
Prototype Portal
15% of 60 decks +15% synergy
Inspiring Statuary
15% of 60 decks +13% synergy
Staff of Domination
15% of 60 decks +13% synergy
Expedition Map
15% of 60 decks +11% synergy
Idol of Oblivion
15% of 60 decks +11% synergy
Sword of the Animist
15% of 60 decks +10% synergy
Isochron Scepter
13% of 60 decks +10% synergy
Portal to Phyrexia
13% of 38 decks +11% synergy
Staff of Nin
12% of 60 decks +11% synergy
Illusionist's Bracers
12% of 60 decks +10% synergy
Trading Post
12% of 60 decks +10% synergy
Moonsilver Key
10% of 58 decks +9% synergy
Spine of Ish Sah
10% of 60 decks +9% synergy
Lithoform Engine
10% of 60 decks +8% synergy
Nettlecyst
8% of 59 decks +7% synergy
Grinding Station
8% of 60 decks +8% synergy
Hammer of Purphoros
8% of 60 decks +8% synergy
Mishra's Bauble
8% of 60 decks +7% synergy
Forsaken Monument
8% of 60 decks +7% synergy
Vedalken Orrery
8% of 60 decks +7% synergy
Enchantments (18)
Felidar Retreat
43% of 7 decks +40% synergy
Storm the Vault
40% of 60 decks +39% synergy
Thopter Spy Network
40% of 60 decks +38% synergy
Retreat to Hagra
36% of 11 decks +36% synergy
Mirrodin Besieged
28% of 60 decks +27% synergy
Artificer Class
27% of 51 decks +27% synergy
Freed from the Real
23% of 60 decks +22% synergy
Rhystic Study
23% of 60 decks +9% synergy
Mystic Remora
20% of 60 decks +11% synergy
Mechanized Production
17% of 60 decks +16% synergy
Valakut Exploration
17% of 60 decks +15% synergy
Ghirapur Aether Grid
15% of 60 decks +14% synergy
The Antiquities War
13% of 60 decks +13% synergy
Pemmin's Aura
13% of 60 decks +13% synergy
Trade Routes
10% of 60 decks +10% synergy
Clan Crafter
10% of 51 decks +10% synergy
Intruder Alarm
8% of 60 decks +7% synergy
Determined Iteration
5% of 55 decks +5% synergy
Planeswalkers (7)
Daretti, Scrap Savant
30% of 60 decks +29% synergy
Saheeli, Sublime Artificer
15% of 60 decks +14% synergy
Saheeli, Filigree Master
14% of 37 decks +13% synergy
Tezzeret the Seeker
10% of 60 decks +9% synergy
Karn, the Great Creator
10% of 60 decks +9% synergy
Saheeli, the Gifted
8% of 60 decks +8% synergy
Karn, Living Legacy
7% of 41 decks +7% synergy
Utility Lands (27)
Vault of Whispers
100% of 11 decks +98% synergy
Ancient Den
100% of 7 decks +97% synergy
Seat of the Synod
98% of 60 decks +95% synergy
Buried Ruin
60% of 60 decks +55% synergy
Inventors' Fair
43% of 60 decks +39% synergy
Treasure Vault
43% of 58 decks +40% synergy
Academy Ruins
40% of 60 decks +37% synergy
Reliquary Tower
30% of 60 decks +2% synergy
Rivendell
25% of 16 decks +22% synergy
Minamo, School at Water's Edge
23% of 60 decks +22% synergy
Urza's Saga
20% of 59 decks +13% synergy
Otawara, Soaring City
16% of 57 decks +7% synergy
Tolaria West
13% of 60 decks +13% synergy
Ancient Tomb
13% of 60 decks +2% synergy
Oboro, Palace in the Clouds
10% of 60 decks +10% synergy
Guildless Commons
10% of 60 decks +9% synergy
Ghost Town
8% of 60 decks +8% synergy
Field of the Dead
8% of 60 decks +5% synergy
Wandering Fumarole
7% of 60 decks +6% synergy
Drownyard Temple
7% of 60 decks +6% synergy
Desolate Lighthouse
7% of 60 decks +6% synergy
Terrain Generator
7% of 60 decks +6% synergy
Urza's Tower
7% of 60 decks +5% synergy
Urza's Power Plant
7% of 60 decks +5% synergy
Urza's Mine
7% of 60 decks +5% synergy
Mystic Sanctuary
7% of 60 decks +0% synergy
Urborg, Tomb of Yawgmoth
7% of 60 decks -4% synergy
Mana Artifacts (29)
Sol Ring
88% of 60 decks +4% synergy
Arcane Signet
83% of 60 decks +13% synergy
Boros Signet
57% of 7 decks +52% synergy
Azorius Signet
57% of 7 decks +51% synergy
Izzet Signet
55% of 60 decks +48% synergy
Talisman of Creativity
48% of 60 decks +42% synergy
Mind Stone
38% of 60 decks +20% synergy
Talisman of Dominance
36% of 11 decks +29% synergy
Liquimetal Torque
36% of 59 decks +31% synergy
Patriar's Seal
32% of 53 decks +30% synergy
Commander's Sphere
30% of 60 decks +13% synergy
Fellwar Stone
28% of 60 decks +7% synergy
Talisman of Indulgence
27% of 11 decks +22% synergy
Thran Dynamo
27% of 60 decks +22% synergy
Gilded Lotus
23% of 60 decks +20% synergy
Thought Vessel
23% of 60 decks +8% synergy
Hedron Archive
20% of 60 decks +17% synergy
Basalt Monolith
13% of 60 decks +11% synergy
Cursed Mirror
12% of 59 decks +10% synergy
Blinkmoth Urn
12% of 60 decks +11% synergy
Mana Crypt
10% of 60 decks -1% synergy
Chromatic Orrery
8% of 60 decks +7% synergy
Sky Diamond
8% of 60 decks +5% synergy
Mox Opal
8% of 60 decks +4% synergy
Fire Diamond
7% of 60 decks +4% synergy
Lotus Petal
7% of 60 decks +0% synergy
Chromatic Lantern
7% of 60 decks -3% synergy
Sol Talisman
5% of 59 decks +4% synergy
Replicating Ring
5% of 59 decks +3% synergy
Lands (50)
Breeding Pool
100% of 3 decks +91% synergy
Stomping Ground
100% of 3 decks +91% synergy
Slagwoods Bridge
100% of 3 decks +99% synergy
Tanglepool Bridge
100% of 3 decks +99% synergy
Silverbluff Bridge
86% of 59 decks +85% synergy
Drossforge Bridge
82% of 11 decks +81% synergy
Mistvault Bridge
82% of 11 decks +80% synergy
Rustvale Bridge
71% of 7 decks +70% synergy
Razortide Bridge
71% of 7 decks +70% synergy
Command Tower
70% of 60 decks -3% synergy
Watery Grave
64% of 11 decks +53% synergy
Steam Vents
55% of 60 decks +46% synergy
Xander's Lounge
50% of 10 decks +46% synergy
Izzet Boilerworks
47% of 60 decks +43% synergy
Shivan Reef
47% of 60 decks +41% synergy
Blood Crypt
45% of 11 decks +36% synergy
Sulfur Falls
45% of 60 decks +39% synergy
Scalding Tarn
45% of 60 decks +34% synergy
Sacred Foundry
43% of 7 decks +35% synergy
Hallowed Fountain
43% of 7 decks +34% synergy
Training Center
38% of 60 decks +32% synergy
Haunted Ridge
36% of 11 decks +33% synergy
Stormcarved Coast
35% of 57 decks +31% synergy
Terramorphic Expanse
33% of 60 decks +17% synergy
Evolving Wilds
33% of 60 decks +12% synergy
Myriad Landscape
28% of 60 decks +7% synergy
Luxury Suite
27% of 11 decks +21% synergy
Drowned Catacomb
27% of 11 decks +21% synergy
Dragonskull Summit
27% of 11 decks +21% synergy
The Mycosynth Gardens
24% of 29 decks +21% synergy
Arid Mesa
22% of 60 decks +11% synergy
Cascade Bluffs
20% of 60 decks +17% synergy
Fabled Passage
20% of 60 decks +10% synergy
Flooded Strand
20% of 60 decks +10% synergy
Power Depot
17% of 59 decks +16% synergy
Frostboil Snarl
17% of 59 decks +14% synergy
Spire of Industry
17% of 60 decks +14% synergy
Misty Rainforest
17% of 60 decks +5% synergy
Fiery Islet
15% of 60 decks +14% synergy
Prismatic Vista
15% of 60 decks +9% synergy
Maestros Theater
15% of 55 decks +13% synergy
Bloodstained Mire
13% of 60 decks +3% synergy
Polluted Delta
13% of 60 decks +2% synergy
Temple of Epiphany
12% of 60 decks +8% synergy
Spirebluff Canal
10% of 60 decks +9% synergy
Swiftwater Cliffs
10% of 60 decks +8% synergy
Riverglide Pathway
10% of 60 decks +8% synergy
Exotic Orchard
8% of 60 decks -26% synergy
Molten Tributary
8% of 38 decks +7% synergy
Plaza of Heroes
7% of 41 decks +3% synergy