Goblin Welder
Retreat to Coralhelm
Darksteel Citadel
Great Furnace

   Prerequisites

What do I need to start this combo?
Darksteel Citadel 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 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 .
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 .
7
Repeat.

   Results

What do I get from this combo?
Infinite colorless mana
Infinite landfall triggers
Infinite red mana
Jhoira, Ageless Innovator
0.9%inclusion22 decks2.40K decks
Saheeli, the Sun's Brilliance
0.8%inclusion15 decks1.94K decks
Glacian, Powerstone Engineer // Toggo, Goblin Weaponsmith
5.0%inclusion8 decks159 decks
Sakashima of a Thousand Faces // Toggo, Goblin Weaponsmith
3.1%inclusion6 decks191 decks
Iron Man, Titan of Innovation
0.1%inclusion5 decks7.93K decks
Dr. Madison Li
0.1%inclusion4 decks6.98K decks
Ishai, Ojutai Dragonspeaker // Toggo, Goblin Weaponsmith
10%inclusion4 decks40 decks
Silas Renn, Seeker Adept // Toggo, Goblin Weaponsmith
1.5%inclusion4 decks269 decks
Breya, Etherium Shaper
0.0%inclusion3 decks20.6K decks
Garth One-Eye
0.0%inclusion2 decks5.12K decks
Ian Malcolm, Chaotician
0.0%inclusion1 decks4.79K decks
Breeches, the Blastmaker
0.1%inclusion1 decks1.26K decks
Bjorna, Nightfall Alchemist // Sophina, Spearsage Deserter
0.5%inclusion1 decks187 decks
Thrasios, Triton Hero // Toggo, Goblin Weaponsmith
0.1%inclusion1 decks878 decks
Optimus Prime, Hero
0.0%inclusion1 decks4.47K decks
Brudiclad, Telchor Engineer
0.0%inclusion1 decks6.36K decks
Shao Jun
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Urtet, Remnant of Memnarch
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New Cards
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Coin of Mastery
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Irma, Part-Time Mutant
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Donatello, Mutant Mechanic
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Krang, Utrom Warlord
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High Synergy Cards
Tree of Tales
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Vault of Whispers
100%inclusion10 decks10 decks
Seat of the Synod
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Ancient Den
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Inventors' Fair
55%inclusion46 decks83 decks
Thought Monitor
52%inclusion43 decks83 decks
Emry, Lurker of the Loch
52%inclusion43 decks83 decks
Buried Ruin
52%inclusion43 decks83 decks
Goblin Engineer
49%inclusion41 decks83 decks
Solemn Simulacrum
58%inclusion48 decks83 decks
Top Cards
Baleful Strix
50%inclusion5 decks10 decks
Reckless Fireweaver
48%inclusion40 decks83 decks
Master Transmuter
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Dispatch
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Esper Sentinel
44%inclusion7 decks16 decks
Urza, Lord High Artificer
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Blasphemous Act
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Ichor Wellspring
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Cranial Ram
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Game Changers
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Enlightened Tutor
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Cyclonic Rift
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Fierce Guardianship
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Field of the Dead
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The One Ring
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Mana Vault
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Gamble
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Mystical Tutor
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Jeska's Will
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Creatures
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Walking Atlas
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Jhoira, Weatherlight Captain
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Enthusiastic Mechanaut
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Kappa Cannoneer
33%inclusion27 decks83 decks
Brudiclad, Telchor Engineer
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Foundry Inspector
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Ruin Ghost
31%inclusion5 decks16 decks
Teshar, Ancestor's Apostle
31%inclusion5 decks16 decks
Phyrexian Metamorph
30%inclusion25 decks83 decks
Cyberdrive Awakener
29%inclusion24 decks83 decks
Wurmcoil Engine
28%inclusion23 decks83 decks
Weftstalker Ardent
26%inclusion10 decks39 decks
Scrap Trawler
25%inclusion21 decks83 decks
Padeem, Consul of Innovation
25%inclusion21 decks83 decks
PuPu UFO
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Puresteel Paladin
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Myr Battlesphere
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Marvin, Murderous Mimic
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Combustible Gearhulk
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Sage of Lat-Nam
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Corridor Monitor
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Shimmer Dragon
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Trove Warden
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Oswald Fiddlebender
19%inclusion3 decks16 decks
Liberty Prime, Recharged
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Guide of Souls
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Sun Titan
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Transit Mage
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Tunneling Geopede
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Myr Retriever
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Ingenious Artillerist
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Meteor Golem
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Sai, Master Thopterist
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Scaretiller
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Dreamscape Artist
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Spitfire Lagac
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Ornithopter of Paradise
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Tideforce Elemental
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Mirran Spy
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Tiller Engine
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Triplicate Titan
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Metalwork Colossus
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Steel Hellkite
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Trinket Mage
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The Reality Chip
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Roil Cartographer
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Roil Elemental
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Jhoira's Familiar
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Instants
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Pongify
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Chaos Warp
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Whir of Invention
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An Offer You Can't Refuse
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Path to Exile
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Swords to Plowshares
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Negate
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Rapid Hybridization
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Reality Shift
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Three Steps Ahead
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Arcane Denial
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Mana Drain
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Scour for Scrap
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Desynchronization
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Swan Song
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Resculpt
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Masterful Replication
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Muddle the Mixture
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Shore Up
13%inclusion11 decks83 decks
Dramatic Reversal
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Deflecting Swat
13%inclusion11 decks83 decks
Brainstorm
12%inclusion10 decks83 decks
Demand Answers
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Sink into Stupor
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Thirst for Knowledge
8.4%inclusion7 decks83 decks
Stoic Rebuttal
7.2%inclusion6 decks83 decks
Valakut Awakening
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Abrade
7.2%inclusion6 decks83 decks
Unexpected Windfall
6.0%inclusion5 decks83 decks
Frantic Search
6.0%inclusion5 decks83 decks
Sorceries
Thoughtcast
35%inclusion29 decks83 decks
Fabricate
34%inclusion28 decks83 decks
Trash for Treasure
25%inclusion21 decks83 decks
Recommission
19%inclusion3 decks16 decks
Jolted Awake
19%inclusion3 decks16 decks
Sevinne's Reclamation
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Scrap Mastery
17%inclusion14 decks83 decks
Reverse Engineer
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Nahiri's Lithoforming
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One with the Machine
16%inclusion13 decks83 decks
Season of Weaving
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Rise and Shine
13%inclusion11 decks83 decks
Vandalblast
13%inclusion11 decks83 decks
Rite of Replication
11%inclusion9 decks83 decks
Faithless Looting
11%inclusion9 decks83 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
Krark-Clan Ironworks
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Wayfarer's Bauble
36%inclusion30 decks83 decks
Lightning Greaves
35%inclusion29 decks83 decks
Unwinding Clock
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Cranial Plating
30%inclusion3 decks10 decks
Time Sieve
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Swiftfoot Boots
29%inclusion24 decks83 decks
Sting, the Glinting Dagger
27%inclusion22 decks83 decks
Encroaching Mycosynth
25%inclusion21 decks83 decks
Thousand-Year Elixir
25%inclusion21 decks83 decks
Sculpting Steel
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Mystic Forge
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Esoteric Duplicator
24%inclusion20 decks83 decks
Mycosynth Wellspring
24%inclusion20 decks83 decks
Clock of Omens
24%inclusion20 decks83 decks
Prototype Portal
23%inclusion19 decks83 decks
Illusionist's Bracers
22%inclusion18 decks83 decks
Idol of Oblivion
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Spine of Ish Sah
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Staff of Domination
19%inclusion16 decks83 decks
Automated Assembly Line
19%inclusion3 decks16 decks
Shorikai, Genesis Engine
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Archaeomancer's Map
19%inclusion3 decks16 decks
Portal to Phyrexia
18%inclusion15 decks83 decks
Crucible of Worlds
18%inclusion15 decks83 decks
Liquimetal Coating
17%inclusion14 decks83 decks
Inspiring Statuary
17%inclusion14 decks83 decks
Expedition Map
17%inclusion14 decks83 decks
Sensei's Divining Top
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Mirrorworks
16%inclusion13 decks83 decks
Worldwalker Helm
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Darksteel Forge
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Rings of Brighthearth
16%inclusion13 decks83 decks
Chimil, the Inner Sun
16%inclusion13 decks83 decks
Magewright's Stone
14%inclusion12 decks83 decks
Mycosynth Lattice
14%inclusion12 decks83 decks
Cryogen Relic
14%inclusion5 decks37 decks
Lithoform Engine
13%inclusion11 decks83 decks
Simulacrum Synthesizer
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Moonsilver Key
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Prized Statue
11%inclusion9 decks83 decks
Cloud Key
11%inclusion9 decks83 decks
Sword of the Animist
11%inclusion9 decks83 decks
Mishra's Bauble
10%inclusion8 decks83 decks
Brass's Tunnel-Grinder
10%inclusion8 decks83 decks
Darksteel Monolith
8.4%inclusion7 decks83 decks
Grinding Station
8.4%inclusion7 decks83 decks
Amulet of Vigor
8.4%inclusion7 decks83 decks
Panharmonicon
8.4%inclusion7 decks83 decks
The Endstone
7.7%inclusion3 decks39 decks
Enchantments
Mechanized Production
25%inclusion21 decks83 decks
Storm the Vault
22%inclusion18 decks83 decks
Valakut Exploration
20%inclusion17 decks83 decks
Land Tax
19%inclusion3 decks16 decks
Trade Routes
17%inclusion14 decks83 decks
Ghirapur Aether Grid
16%inclusion13 decks83 decks
Freed from the Real
14%inclusion12 decks83 decks
Excavation
13%inclusion11 decks83 decks
Thopter Spy Network
13%inclusion11 decks83 decks
Retreat to Valakut
11%inclusion9 decks83 decks
Weapons Manufacturing
10%inclusion4 decks39 decks
Intruder Alarm
10%inclusion8 decks83 decks
Mirrodin Besieged
8.4%inclusion7 decks83 decks
Mystic Remora
7.2%inclusion6 decks83 decks
Unstoppable Plan
6.1%inclusion4 decks66 decks
Clan Crafter
6.0%inclusion5 decks83 decks
Determined Iteration
6.0%inclusion5 decks83 decks
Pemmin's Aura
6.0%inclusion5 decks83 decks
Cool but Rude
5.9%inclusion1 decks17 decks
Planeswalkers
Daretti, Scrap Savant
37%inclusion31 decks83 decks
Tezzeret the Seeker
12%inclusion10 decks83 decks
Saheeli, the Gifted
8.4%inclusion7 decks83 decks
Tezzeret, Cruel Captain
7.5%inclusion3 decks40 decks
Saheeli, Filigree Master
6.0%inclusion5 decks83 decks
Karn, the Great Creator
6.0%inclusion5 decks83 decks
Saheeli Rai
6.0%inclusion5 decks83 decks
Saheeli, Sublime Artificer
6.0%inclusion5 decks83 decks
Utility Lands
Academy Ruins
47%inclusion39 decks83 decks
Treasure Vault
40%inclusion33 decks83 decks
Reliquary Tower
34%inclusion28 decks83 decks
Urza's Saga
33%inclusion27 decks83 decks
Archway of Innovation
28%inclusion23 decks82 decks
Fomori Vault
24%inclusion20 decks83 decks
Uthros, Titanic Godcore
23%inclusion9 decks39 decks
Minamo, School at Water's Edge
22%inclusion18 decks83 decks
Oboro, Palace in the Clouds
17%inclusion14 decks83 decks
Terrain Generator
16%inclusion13 decks83 decks
Vesuva
13%inclusion11 decks83 decks
Otawara, Soaring City
13%inclusion11 decks83 decks
Ghost Town
11%inclusion9 decks83 decks
Blinkmoth Nexus
11%inclusion9 decks83 decks
Mutavault
11%inclusion9 decks83 decks
Guildless Commons
11%inclusion9 decks83 decks
Restless Spire
11%inclusion9 decks83 decks
Valakut, the Molten Pinnacle
11%inclusion9 decks83 decks
Thespian's Stage
11%inclusion9 decks83 decks
Mystic Sanctuary
10%inclusion8 decks83 decks
Rogue's Passage
7.2%inclusion6 decks83 decks
Temple of the False God
6.0%inclusion5 decks83 decks
Mana Artifacts
Sol Ring
82%inclusion68 decks83 decks
Arcane Signet
80%inclusion66 decks83 decks
Talisman of Creativity
45%inclusion37 decks83 decks
Izzet Signet
43%inclusion36 decks83 decks
Dimir Signet
40%inclusion4 decks10 decks
Rakdos Signet
40%inclusion4 decks10 decks
Liquimetal Torque
33%inclusion27 decks83 decks
Mind Stone
29%inclusion24 decks83 decks
Fellwar Stone
27%inclusion22 decks83 decks
Cursed Mirror
25%inclusion21 decks83 decks
Thought Vessel
24%inclusion20 decks83 decks
Thran Dynamo
22%inclusion18 decks83 decks
Machine God's Effigy
20%inclusion17 decks83 decks
Patriar's Seal
20%inclusion17 decks83 decks
Boros Signet
19%inclusion3 decks16 decks
Azorius Signet
19%inclusion3 decks16 decks
Talisman of Conviction
19%inclusion3 decks16 decks
Talisman of Progress
19%inclusion3 decks16 decks
Hedron Archive
18%inclusion15 decks83 decks
Crystal Skull, Isu Spyglass
16%inclusion13 decks82 decks
Gilded Lotus
13%inclusion11 decks83 decks
The Mightstone and Weakstone
12%inclusion10 decks83 decks
Commander's Sphere
12%inclusion10 decks83 decks
Misleading Signpost
11%inclusion9 decks83 decks
Mox Opal
11%inclusion9 decks83 decks
Worn Powerstone
10%inclusion8 decks83 decks
Chromatic Lantern
10%inclusion8 decks83 decks
Coveted Jewel
8.4%inclusion7 decks83 decks
Mox Amber
8.4%inclusion7 decks83 decks
Basalt Monolith
7.2%inclusion6 decks83 decks
Midnight Clock
7.2%inclusion6 decks83 decks
Blinkmoth Urn
6.0%inclusion5 decks83 decks
Chromatic Orrery
6.0%inclusion5 decks83 decks
Lotus Petal
6.0%inclusion5 decks83 decks
Lands
Command Tower
84%inclusion70 decks83 decks
Silverbluff Bridge
77%inclusion64 decks83 decks
Slagwoods Bridge
75%inclusion3 decks4 decks
Tanglepool Bridge
75%inclusion3 decks4 decks
Steam Vents
67%inclusion56 decks83 decks
Hallowed Fountain
63%inclusion10 decks16 decks
Drossforge Bridge
60%inclusion6 decks10 decks
Mistvault Bridge
60%inclusion6 decks10 decks
Izzet Boilerworks
53%inclusion44 decks83 decks
Dimir Aqueduct
50%inclusion5 decks10 decks
Sulfur Falls
49%inclusion41 decks83 decks
Scalding Tarn
46%inclusion38 decks83 decks
Training Center
46%inclusion38 decks83 decks
Razortide Bridge
44%inclusion7 decks16 decks
Sacred Foundry
44%inclusion7 decks16 decks
Xander's Lounge
40%inclusion4 decks10 decks
Blood Crypt
40%inclusion4 decks10 decks
Watery Grave
40%inclusion4 decks10 decks
Rustvale Bridge
38%inclusion6 decks16 decks
Raugrin Triome
38%inclusion6 decks16 decks
Rakdos Carnarium
30%inclusion3 decks10 decks
Luxury Suite
30%inclusion3 decks10 decks
Power Depot
29%inclusion24 decks83 decks
Cascade Bluffs
29%inclusion24 decks83 decks
Shivan Reef
29%inclusion24 decks83 decks
Fabled Passage
28%inclusion23 decks83 decks
Spire of Industry
27%inclusion22 decks83 decks
Scene of the Crime
25%inclusion21 decks83 decks
Stormcarved Coast
25%inclusion21 decks83 decks
Evolving Wilds
25%inclusion21 decks83 decks
Azorius Chancery
25%inclusion4 decks16 decks
Spectator Seating
25%inclusion4 decks16 decks
Sea of Clouds
25%inclusion4 decks16 decks
Thundering Falls
23%inclusion19 decks83 decks
Terramorphic Expanse
22%inclusion18 decks83 decks
Exotic Orchard
22%inclusion18 decks83 decks
Temple of Epiphany
20%inclusion17 decks83 decks
Myriad Landscape
19%inclusion16 decks83 decks
Boros Garrison
19%inclusion3 decks16 decks
Ferrous Lake
18%inclusion15 decks83 decks
Riverglide Pathway
17%inclusion14 decks83 decks
The Mycosynth Gardens
14%inclusion12 decks83 decks
Prismatic Vista
14%inclusion12 decks83 decks
Arid Mesa
14%inclusion12 decks83 decks
Flooded Strand
14%inclusion12 decks83 decks
Frostboil Snarl
14%inclusion12 decks83 decks
Maestros Theater
13%inclusion11 decks83 decks
Urza's Cave
12%inclusion10 decks83 decks
Bloodstained Mire
12%inclusion10 decks83 decks
Talon Gates of Madara
11%inclusion9 decks83 decks