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
Jhoira, Ageless Innovator
1.0%inclusion25 decks2.45K decks
Saheeli, the Sun's Brilliance
0.8%inclusion15 decks1.92K decks
Glacian, Powerstone Engineer // Toggo, Goblin Weaponsmith
5.1%inclusion8 decks158 decks
Sakashima of a Thousand Faces // Toggo, Goblin Weaponsmith
3.5%inclusion7 decks199 decks
Iron Man, Titan of Innovation
0.1%inclusion5 decks8.09K decks
Dr. Madison Li
0.1%inclusion4 decks6.98K decks
Ishai, Ojutai Dragonspeaker // Toggo, Goblin Weaponsmith
10%inclusion4 decks42 decks
Silas Renn, Seeker Adept // Toggo, Goblin Weaponsmith
1.5%inclusion4 decks269 decks
Breya, Etherium Shaper
0.0%inclusion3 decks21K decks
Garth One-Eye
0.0%inclusion2 decks5.21K decks
Ian Malcolm, Chaotician
0.0%inclusion1 decks4.89K decks
Breeches, the Blastmaker
0.1%inclusion1 decks1.25K decks
Bjorna, Nightfall Alchemist // Sophina, Spearsage Deserter
0.5%inclusion1 decks192 decks
Thrasios, Triton Hero // Toggo, Goblin Weaponsmith
0.1%inclusion1 decks889 decks
Optimus Prime, Hero
0.0%inclusion1 decks4.53K decks
Brudiclad, Telchor Engineer
0.0%inclusion1 decks6.47K decks
Shao Jun
0.1%inclusion1 decks1.91K decks
Urtet, Remnant of Memnarch
0.0%inclusion1 decks16.8K decks
New Cards
Scorched Geyser
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High Synergy Cards
Tree of Tales
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Vault of Whispers
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Ancient Den
94%inclusion16 decks17 decks
Great Furnace
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Thought Monitor
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Solemn Simulacrum
61%inclusion54 decks89 decks
Inventors' Fair
52%inclusion46 decks89 decks
Tezzeret, Master of the Bridge
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Emry, Lurker of the Loch
52%inclusion46 decks89 decks
Baleful Strix
60%inclusion6 decks10 decks
Top Cards
Reckless Fireweaver
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Dispatch
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Esper Sentinel
47%inclusion8 decks17 decks
Master Transmuter
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Goblin Engineer
46%inclusion41 decks89 decks
Blasphemous Act
43%inclusion38 decks89 decks
Urza, Lord High Artificer
42%inclusion37 decks89 decks
Etherium Sculptor
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Time Sieve
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Ichor Wellspring
38%inclusion34 decks89 decks
Game Changers
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Enlightened Tutor
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Cyclonic Rift
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Field of the Dead
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Fierce Guardianship
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The One Ring
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Gamble
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Jeska's Will
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Creatures
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Kuldotha Forgemaster
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Kappa Cannoneer
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Jhoira, Weatherlight Captain
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Cyberdrive Awakener
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Brudiclad, Telchor Engineer
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Foundry Inspector
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Phyrexian Metamorph
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Ruin Ghost
29%inclusion5 decks17 decks
Weftstalker Ardent
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Padeem, Consul of Innovation
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Wurmcoil Engine
26%inclusion23 decks89 decks
PuPu UFO
25%inclusion13 decks53 decks
Myr Battlesphere
24%inclusion21 decks89 decks
Combustible Gearhulk
24%inclusion21 decks89 decks
Oswald Fiddlebender
24%inclusion4 decks17 decks
Teshar, Ancestor's Apostle
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Puresteel Paladin
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Scrap Trawler
22%inclusion20 decks89 decks
Meteor Golem
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Sai, Master Thopterist
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Marvin, Murderous Mimic
20%inclusion16 decks81 decks
Shimmer Dragon
19%inclusion17 decks89 decks
Depthshaker Titan
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Transit Mage
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Sage of Lat-Nam
18%inclusion16 decks89 decks
Corridor Monitor
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Tunneling Geopede
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Ingenious Artillerist
18%inclusion16 decks89 decks
Trove Warden
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Liberty Prime, Recharged
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Guide of Souls
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Sun Titan
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Scaretiller
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Spitfire Lagac
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Myr Retriever
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Dreamscape Artist
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Tiller Engine
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Metalwork Colossus
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Steel Hellkite
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Trinket Mage
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Ornithopter of Paradise
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Mirran Spy
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Roil Elemental
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The Reality Chip
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13%inclusion12 decks89 decks
Roil Cartographer
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Triplicate Titan
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Instants
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Counterspell
35%inclusion31 decks89 decks
Pongify
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An Offer You Can't Refuse
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Whir of Invention
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Negate
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Path to Exile
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Rapid Hybridization
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Arcane Denial
20%inclusion18 decks89 decks
Three Steps Ahead
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Reality Shift
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Desynchronization
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Mana Drain
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Swan Song
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Resculpt
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Masterful Replication
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Shore Up
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Muddle the Mixture
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Dramatic Reversal
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Deflecting Swat
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Brainstorm
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Demand Answers
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Thirst for Knowledge
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Sink into Stupor
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Stoic Rebuttal
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Unexpected Windfall
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Valakut Awakening
6.7%inclusion6 decks89 decks
Abrade
6.7%inclusion6 decks89 decks
Frantic Search
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Machinate
5.6%inclusion5 decks89 decks
Galvanic Blast
5.6%inclusion5 decks89 decks
Cerulean Wisps
5.6%inclusion5 decks89 decks
Aetherize
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Sorceries
Thoughtcast
38%inclusion34 decks89 decks
Fabricate
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Trash for Treasure
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Scrap Mastery
19%inclusion17 decks89 decks
One with the Machine
19%inclusion17 decks89 decks
Recommission
18%inclusion3 decks17 decks
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Organic Extinction
18%inclusion3 decks17 decks
Sevinne's Reclamation
18%inclusion3 decks17 decks
Reverse Engineer
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Nahiri's Lithoforming
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Season of Weaving
13%inclusion11 decks85 decks
Rise and Shine
12%inclusion11 decks89 decks
Vandalblast
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Faithless Looting
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Rite of Replication
10%inclusion9 decks89 decks
Reshape
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Saheeli's Directive
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Transmute Artifact
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Windfall
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Utility Artifacts
Lightning Greaves
37%inclusion33 decks89 decks
Krark-Clan Ironworks
35%inclusion31 decks89 decks
Wayfarer's Bauble
35%inclusion31 decks89 decks
Unwinding Clock
33%inclusion29 decks89 decks
Nihil Spellbomb
30%inclusion3 decks10 decks
Cranial Ram
30%inclusion3 decks10 decks
Swiftfoot Boots
28%inclusion25 decks89 decks
Sting, the Glinting Dagger
26%inclusion23 decks89 decks
Encroaching Mycosynth
25%inclusion22 decks89 decks
Esoteric Duplicator
24%inclusion21 decks89 decks
Mycosynth Wellspring
24%inclusion21 decks89 decks
Clock of Omens
24%inclusion21 decks89 decks
Thousand-Year Elixir
24%inclusion21 decks89 decks
Sculpting Steel
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Mystic Forge
24%inclusion21 decks89 decks
Idol of Oblivion
22%inclusion20 decks89 decks
Prototype Portal
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Spine of Ish Sah
20%inclusion18 decks89 decks
Illusionist's Bracers
20%inclusion18 decks89 decks
Sewer-veillance Cam
20%inclusion3 decks15 decks
Portal to Phyrexia
19%inclusion17 decks89 decks
Worldwalker Helm
18%inclusion16 decks89 decks
Staff of Domination
18%inclusion16 decks89 decks
Inspiring Statuary
18%inclusion16 decks89 decks
Crucible of Worlds
18%inclusion16 decks89 decks
Automated Assembly Line
18%inclusion3 decks17 decks
Shorikai, Genesis Engine
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Archaeomancer's Map
18%inclusion3 decks17 decks
Chimil, the Inner Sun
17%inclusion15 decks89 decks
Expedition Map
17%inclusion15 decks89 decks
Liquimetal Coating
16%inclusion14 decks89 decks
Mirrorworks
16%inclusion14 decks89 decks
Darksteel Forge
16%inclusion14 decks89 decks
Sensei's Divining Top
16%inclusion14 decks89 decks
Magewright's Stone
15%inclusion13 decks89 decks
Rings of Brighthearth
15%inclusion13 decks89 decks
Simulacrum Synthesizer
13%inclusion12 decks89 decks
Mycosynth Lattice
12%inclusion11 decks89 decks
Lithoform Engine
12%inclusion11 decks89 decks
Cryogen Relic
12%inclusion5 decks42 decks
Moonsilver Key
11%inclusion10 decks89 decks
Cloud Key
11%inclusion10 decks89 decks
Prized Statue
10%inclusion9 decks89 decks
Brass's Tunnel-Grinder
10%inclusion9 decks89 decks
Sword of the Animist
10%inclusion9 decks89 decks
Insight Engine
9.3%inclusion4 decks43 decks
Uthros Research Craft
9.3%inclusion4 decks43 decks
Grinding Station
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Mishra's Bauble
9.0%inclusion8 decks89 decks
Darksteel Monolith
7.9%inclusion7 decks89 decks
Enchantments
Mechanized Production
27%inclusion24 decks89 decks
Storm the Vault
25%inclusion22 decks89 decks
Valakut Exploration
19%inclusion17 decks89 decks
Land Tax
18%inclusion3 decks17 decks
Trade Routes
16%inclusion14 decks89 decks
Freed from the Real
16%inclusion14 decks89 decks
Thopter Spy Network
16%inclusion14 decks89 decks
Ghirapur Aether Grid
15%inclusion13 decks89 decks
Weapons Manufacturing
14%inclusion6 decks44 decks
Excavation
12%inclusion11 decks89 decks
Intruder Alarm
11%inclusion10 decks89 decks
Retreat to Valakut
10%inclusion9 decks89 decks
Mirrodin Besieged
10%inclusion9 decks89 decks
Unstoppable Plan
7.0%inclusion5 decks71 decks
Determined Iteration
6.7%inclusion6 decks89 decks
Pemmin's Aura
6.7%inclusion6 decks89 decks
Mystic Remora
6.7%inclusion6 decks89 decks
Clan Crafter
5.6%inclusion5 decks89 decks
Artificer Class
5.6%inclusion5 decks89 decks
Planeswalkers
Daretti, Scrap Savant
36%inclusion32 decks89 decks
Tezzeret the Seeker
12%inclusion11 decks89 decks
Saheeli, the Gifted
7.9%inclusion7 decks89 decks
Tezzeret, Cruel Captain
6.7%inclusion3 decks45 decks
Saheeli Rai
5.6%inclusion5 decks89 decks
Utility Lands
Buried Ruin
49%inclusion44 decks89 decks
Academy Ruins
46%inclusion41 decks89 decks
Treasure Vault
39%inclusion35 decks89 decks
Reliquary Tower
31%inclusion28 decks89 decks
Urza's Saga
30%inclusion27 decks89 decks
Archway of Innovation
26%inclusion23 decks88 decks
Uthros, Titanic Godcore
23%inclusion10 decks44 decks
Fomori Vault
22%inclusion20 decks89 decks
Minamo, School at Water's Edge
21%inclusion19 decks89 decks
Oboro, Palace in the Clouds
16%inclusion14 decks89 decks
Terrain Generator
15%inclusion13 decks89 decks
Vesuva
12%inclusion11 decks89 decks
Otawara, Soaring City
12%inclusion11 decks89 decks
Guildless Commons
11%inclusion10 decks89 decks
Ghost Town
10%inclusion9 decks89 decks
Blinkmoth Nexus
10%inclusion9 decks89 decks
Mutavault
10%inclusion9 decks89 decks
Restless Spire
10%inclusion9 decks89 decks
Valakut, the Molten Pinnacle
10%inclusion9 decks89 decks
Thespian's Stage
10%inclusion9 decks89 decks
Mystic Sanctuary
9.0%inclusion8 decks89 decks
Rogue's Passage
6.7%inclusion6 decks89 decks
Tolaria West
5.6%inclusion5 decks89 decks
Arid Archway
5.6%inclusion5 decks89 decks
Temple of the False God
5.6%inclusion5 decks89 decks
Mana Artifacts
Sol Ring
81%inclusion72 decks89 decks
Arcane Signet
80%inclusion71 decks89 decks
Dimir Signet
50%inclusion5 decks10 decks
Izzet Signet
45%inclusion40 decks89 decks
Talisman of Creativity
42%inclusion37 decks89 decks
Rakdos Signet
40%inclusion4 decks10 decks
Liquimetal Torque
31%inclusion28 decks89 decks
Fellwar Stone
30%inclusion27 decks89 decks
Boros Signet
29%inclusion5 decks17 decks
Azorius Signet
29%inclusion5 decks17 decks
Mind Stone
27%inclusion24 decks89 decks
Thought Vessel
26%inclusion23 decks89 decks
Thran Dynamo
24%inclusion21 decks89 decks
Cursed Mirror
24%inclusion21 decks89 decks
Patriar's Seal
22%inclusion20 decks89 decks
Hedron Archive
19%inclusion17 decks89 decks
Machine God's Effigy
18%inclusion16 decks89 decks
Talisman of Conviction
18%inclusion3 decks17 decks
Talisman of Progress
18%inclusion3 decks17 decks
Crystal Skull, Isu Spyglass
17%inclusion15 decks88 decks
Gilded Lotus
15%inclusion13 decks89 decks
The Mightstone and Weakstone
13%inclusion12 decks89 decks
Commander's Sphere
12%inclusion11 decks89 decks
Misleading Signpost
10%inclusion9 decks89 decks
Chromatic Lantern
10%inclusion9 decks89 decks
Coveted Jewel
9.0%inclusion8 decks89 decks
Worn Powerstone
9.0%inclusion8 decks89 decks
Mox Opal
9.0%inclusion8 decks89 decks
Basalt Monolith
7.9%inclusion7 decks89 decks
Mox Amber
7.9%inclusion7 decks89 decks
Dreamstone Hedron
6.7%inclusion6 decks89 decks
Midnight Clock
6.7%inclusion6 decks89 decks
Lotus Petal
6.7%inclusion6 decks89 decks
Blinkmoth Urn
5.6%inclusion5 decks89 decks
Chromatic Orrery
5.6%inclusion5 decks89 decks
Lands
Command Tower
80%inclusion71 decks89 decks
Silverbluff Bridge
76%inclusion68 decks89 decks
Slagwoods Bridge
75%inclusion3 decks4 decks
Tanglepool Bridge
75%inclusion3 decks4 decks
Steam Vents
65%inclusion58 decks89 decks
Hallowed Fountain
53%inclusion9 decks17 decks
Izzet Boilerworks
52%inclusion46 decks89 decks
Drossforge Bridge
50%inclusion5 decks10 decks
Mistvault Bridge
50%inclusion5 decks10 decks
Dimir Aqueduct
50%inclusion5 decks10 decks
Sulfur Falls
49%inclusion44 decks89 decks
Scalding Tarn
44%inclusion39 decks89 decks
Training Center
43%inclusion38 decks89 decks
Razortide Bridge
41%inclusion7 decks17 decks
Sacred Foundry
41%inclusion7 decks17 decks
Rustvale Bridge
35%inclusion6 decks17 decks
Rakdos Carnarium
30%inclusion3 decks10 decks
Xander's Lounge
30%inclusion3 decks10 decks
Luxury Suite
30%inclusion3 decks10 decks
Crumbling Necropolis
30%inclusion3 decks10 decks
Blood Crypt
30%inclusion3 decks10 decks
Watery Grave
30%inclusion3 decks10 decks
Spectator Seating
29%inclusion5 decks17 decks
Raugrin Triome
29%inclusion5 decks17 decks
Power Depot
28%inclusion25 decks89 decks
Cascade Bluffs
28%inclusion25 decks89 decks
Shivan Reef
28%inclusion25 decks89 decks
Fabled Passage
27%inclusion24 decks89 decks
Evolving Wilds
27%inclusion24 decks89 decks
Spire of Industry
26%inclusion23 decks89 decks
Scene of the Crime
24%inclusion21 decks89 decks
Stormcarved Coast
24%inclusion21 decks89 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
Terramorphic Expanse
22%inclusion20 decks89 decks
Thundering Falls
21%inclusion19 decks89 decks
Temple of Epiphany
21%inclusion19 decks89 decks
Exotic Orchard
20%inclusion18 decks89 decks
Myriad Landscape
18%inclusion16 decks89 decks
Boros Garrison
18%inclusion3 decks17 decks
Prairie Stream
18%inclusion3 decks17 decks
Ferrous Lake
17%inclusion15 decks89 decks
The Mycosynth Gardens
15%inclusion13 decks89 decks
Prismatic Vista
15%inclusion13 decks89 decks
Riverglide Pathway
15%inclusion13 decks89 decks
Arid Mesa
15%inclusion13 decks89 decks
Flooded Strand
15%inclusion13 decks89 decks
Frostboil Snarl
15%inclusion13 decks89 decks