The Master of Keys (Commander) - Expensive Combo

The Master of Keys
Rank #304
22decks
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Background image for What if Thassa's Oracle Were Banned?
Harvey McGuinness
Sep 23, 2025
Harvey McGuinness
What if Thassa's Oracle Were Banned?
What would happen to cEDH if Thassa's Oracle were banned tomorrow? Would the best decks fall apart? Would there be a new meta? Let's discuss.
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Enchantments
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Utility Lands
Mana Artifacts
Lands
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Does Machines
33%inclusion1 decks3 decks
33%synergy
High Synergy Cards
Wan Shi Tong, Librarian
100%inclusion4 decks4 decks
95%synergy
Necromancy
95%inclusion21 decks22 decks
91%synergy
Mental Misstep
95%inclusion21 decks22 decks
89%synergy
Entomb
95%inclusion21 decks22 decks
89%synergy
Dress Down
91%inclusion20 decks22 decks
89%synergy
Flusterstorm
95%inclusion21 decks22 decks
87%synergy
Silence
95%inclusion21 decks22 decks
85%synergy
Mindbreak Trap
91%inclusion20 decks22 decks
84%synergy
Tainted Pact
91%inclusion20 decks22 decks
84%synergy
Thassa's Oracle
91%inclusion20 decks22 decks
82%synergy
Top Cards
Dark Ritual
95%inclusion21 decks22 decks
76%synergy
Esper Sentinel
95%inclusion21 decks22 decks
68%synergy
Mystic Remora
95%inclusion21 decks22 decks
75%synergy
Rhystic Study
91%inclusion20 decks22 decks
60%synergy
Animate Dead
91%inclusion20 decks22 decks
81%synergy
Orcish Bowmasters
91%inclusion20 decks22 decks
80%synergy
Lotho, Corrupt Shirriff
86%inclusion19 decks22 decks
70%synergy
Imperial Seal
86%inclusion19 decks22 decks
79%synergy
Swan Song
86%inclusion19 decks22 decks
67%synergy
Demonic Consultation
86%inclusion19 decks22 decks
78%synergy
Game Changers
Ancient Tomb
100%inclusion22 decks22 decks
87%synergy
Intuition
100%inclusion22 decks22 decks
98%synergy
Demonic Tutor
100%inclusion22 decks22 decks
79%synergy
Force of Will
100%inclusion22 decks22 decks
88%synergy
Smothering Tithe
95%inclusion21 decks22 decks
64%synergy
Mana Vault
95%inclusion21 decks22 decks
86%synergy
Enlightened Tutor
95%inclusion21 decks22 decks
76%synergy
Chrome Mox
95%inclusion21 decks22 decks
86%synergy
Vampiric Tutor
95%inclusion21 decks22 decks
78%synergy
Mox Diamond
95%inclusion21 decks22 decks
88%synergy
Creatures
Ranger-Captain of Eos
86%inclusion19 decks22 decks
80%synergy
Valley Floodcaller
82%inclusion18 decks22 decks
78%synergy
Grand Abolisher
82%inclusion18 decks22 decks
67%synergy
Abdel Adrian, Gorion's Ward
82%inclusion18 decks22 decks
80%synergy
Archivist of Oghma
59%inclusion13 decks22 decks
53%synergy
Mockingbird
59%inclusion13 decks22 decks
55%synergy
Voice of Victory
55%inclusion6 decks11 decks
46%synergy
Opposition Agent
50%inclusion11 decks22 decks
42%synergy
Hullbreaker Horror
50%inclusion11 decks22 decks
44%synergy
Displacer Kitten
45%inclusion10 decks22 decks
39%synergy
Lurrus of the Dream-Den
45%inclusion10 decks22 decks
44%synergy
Auriok Salvagers
45%inclusion10 decks22 decks
45%synergy
Phyrexian Metamorph
41%inclusion9 decks22 decks
33%synergy
Tataru Taru
40%inclusion4 decks10 decks
32%synergy
Faerie Mastermind
36%inclusion8 decks22 decks
27%synergy
Hedron Crab
32%inclusion7 decks22 decks
31%synergy
Ghostly Pilferer
32%inclusion7 decks22 decks
24%synergy
Drannith Magistrate
27%inclusion6 decks22 decks
19%synergy
Ledger Shredder
27%inclusion6 decks22 decks
19%synergy
Leonin Relic-Warder
18%inclusion4 decks22 decks
18%synergy
Snapcaster Mage
14%inclusion3 decks22 decks
12%synergy
Pollywog Prodigy
14%inclusion3 decks22 decks
10%synergy
High Fae Trickster
12%inclusion2 decks17 decks
7%synergy
Emet-Selch of the Third Seat
10%inclusion1 decks10 decks
1%synergy
Volatile Stormdrake
9.1%inclusion2 decks22 decks
8%synergy
Overlord of the Balemurk
9.1%inclusion2 decks22 decks
7%synergy
Talion, the Kindly Lord
9.1%inclusion2 decks22 decks
1%synergy
Psychic Frog
9.1%inclusion2 decks22 decks
2%synergy
Academy Rector
9.1%inclusion2 decks22 decks
8%synergy
Neerdiv, Devious Diver
5.9%inclusion1 decks17 decks
6%synergy
Instants
Force of Negation
86%inclusion19 decks22 decks
75%synergy
Pact of Negation
86%inclusion19 decks22 decks
79%synergy
Borne Upon a Wind
73%inclusion16 decks22 decks
68%synergy
Cabal Ritual
64%inclusion14 decks22 decks
60%synergy
Swords to Plowshares
64%inclusion14 decks22 decks
-4%synergy
Fierce Guardianship
59%inclusion13 decks22 decks
39%synergy
Mystical Tutor
59%inclusion13 decks22 decks
48%synergy
Chain of Vapor
41%inclusion9 decks22 decks
38%synergy
Gifts Ungiven
41%inclusion9 decks22 decks
38%synergy
Cyclonic Rift
41%inclusion9 decks22 decks
17%synergy
An Offer You Can't Refuse
36%inclusion8 decks22 decks
9%synergy
Darkblast
32%inclusion7 decks22 decks
32%synergy
Into the Flood Maw
32%inclusion7 decks22 decks
28%synergy
Retraction Helix
27%inclusion6 decks22 decks
27%synergy
Brain Freeze
27%inclusion6 decks22 decks
27%synergy
Banishing Knack
23%inclusion5 decks22 decks
22%synergy
Mana Drain
23%inclusion5 decks22 decks
5%synergy
Sink into Stupor
18%inclusion4 decks22 decks
5%synergy
Orim's Chant
14%inclusion3 decks22 decks
12%synergy
Lim-Dûl's Vault
14%inclusion3 decks22 decks
10%synergy
Culling the Weak
14%inclusion3 decks22 decks
12%synergy
Dispel
14%inclusion3 decks22 decks
10%synergy
Sacrifice
9.1%inclusion2 decks22 decks
8%synergy
Strix Serenade
9.1%inclusion2 decks22 decks
6%synergy
Ad Nauseam
9.1%inclusion2 decks22 decks
7%synergy
Commandeer
9.1%inclusion2 decks22 decks
8%synergy
Path to Exile
9.1%inclusion2 decks22 decks
-33%synergy
Sorceries
Sevinne's Reclamation
68%inclusion15 decks22 decks
59%synergy
Reanimate
45%inclusion10 decks22 decks
29%synergy
Lively Dirge
41%inclusion9 decks22 decks
40%synergy
Demonic Counsel
32%inclusion7 decks22 decks
31%synergy
Beseech the Mirror
27%inclusion6 decks22 decks
23%synergy
Mnemonic Betrayal
23%inclusion5 decks22 decks
20%synergy
Flash Photography
20%inclusion1 decks5 decks
19%synergy
Windfall
18%inclusion4 decks22 decks
5%synergy
Yawgmoth's Will
18%inclusion4 decks22 decks
17%synergy
Unmarked Grave
14%inclusion3 decks22 decks
12%synergy
Toxic Deluge
14%inclusion3 decks22 decks
-6%synergy
Timetwister
14%inclusion3 decks22 decks
13%synergy
Cabal Therapy
9.1%inclusion2 decks22 decks
9%synergy
Diabolic Intent
9.1%inclusion2 decks22 decks
4%synergy
Praetor's Grasp
9.1%inclusion2 decks22 decks
6%synergy
Utility Artifacts
Wishclaw Talisman
73%inclusion16 decks22 decks
65%synergy
The One Ring
68%inclusion15 decks22 decks
55%synergy
Vexing Bauble
23%inclusion5 decks22 decks
21%synergy
Agatha's Soul Cauldron
14%inclusion3 decks22 decks
13%synergy
Enchantments
Dance of the Dead
82%inclusion18 decks22 decks
80%synergy
Tinybones Joins Up
73%inclusion16 decks22 decks
72%synergy
Amphibian Downpour
64%inclusion14 decks22 decks
59%synergy
Blind Obedience
59%inclusion13 decks22 decks
47%synergy
Copy Artifact
59%inclusion13 decks22 decks
58%synergy
Necropotence
55%inclusion12 decks22 decks
48%synergy
Chains of Mephistopheles
55%inclusion12 decks22 decks
54%synergy
The Meathook Massacre
50%inclusion11 decks22 decks
47%synergy
Counterbalance
45%inclusion10 decks22 decks
44%synergy
Steal Enchantment
45%inclusion10 decks22 decks
45%synergy
Mirrormade
45%inclusion10 decks22 decks
36%synergy
Ripples of Undeath
32%inclusion7 decks22 decks
29%synergy
Touch the Spirit Realm
32%inclusion7 decks22 decks
29%synergy
Static Prison
32%inclusion7 decks22 decks
31%synergy
Founding the Third Path
27%inclusion6 decks22 decks
27%synergy
Teval's Judgment
18%inclusion2 decks11 decks
17%synergy
Monologue Tax
18%inclusion4 decks22 decks
12%synergy
Copy Enchantment
14%inclusion3 decks22 decks
9%synergy
Seal of Cleansing
14%inclusion3 decks22 decks
12%synergy
Trouble in Pairs
14%inclusion3 decks22 decks
8%synergy
Attunement
9.1%inclusion2 decks22 decks
9%synergy
Power Artifact
9.1%inclusion2 decks22 decks
9%synergy
Leyline of Anticipation
9.1%inclusion2 decks22 decks
5%synergy
Seal of Removal
9.1%inclusion2 decks22 decks
9%synergy
Planeswalkers
Teferi, Time Raveler
36%inclusion8 decks22 decks
28%synergy
Tezzeret, Cruel Captain
11%inclusion1 decks9 decks
9%synergy
Utility Lands
Otawara, Soaring City
91%inclusion20 decks22 decks
72%synergy
City of Traitors
41%inclusion9 decks22 decks
40%synergy
Emergence Zone
27%inclusion6 decks22 decks
25%synergy
Cephalid Coliseum
27%inclusion6 decks22 decks
24%synergy
Minamo, School at Water's Edge
23%inclusion5 decks22 decks
19%synergy
Serra's Sanctum
23%inclusion5 decks22 decks
21%synergy
Urza's Saga
23%inclusion5 decks22 decks
11%synergy
Wasteland
9.1%inclusion2 decks22 decks
8%synergy
Phyrexian Tower
9.1%inclusion2 decks22 decks
5%synergy
Hall of Heliod's Generosity
9.1%inclusion2 decks22 decks
-4%synergy
Bazaar of Baghdad
9.1%inclusion2 decks22 decks
9%synergy
Strip Mine
9.1%inclusion2 decks22 decks
8%synergy
Mana Artifacts
Arcane Signet
100%inclusion22 decks22 decks
12%synergy
Sol Ring
100%inclusion22 decks22 decks
10%synergy
Lotus Petal
91%inclusion20 decks22 decks
80%synergy
Lion's Eye Diamond
82%inclusion18 decks22 decks
80%synergy
Mox Opal
68%inclusion15 decks22 decks
60%synergy
Fellwar Stone
64%inclusion14 decks22 decks
30%synergy
Talisman of Dominance
59%inclusion13 decks22 decks
9%synergy
Grim Monolith
55%inclusion12 decks22 decks
51%synergy
Talisman of Progress
36%inclusion8 decks22 decks
-7%synergy
Mox Amber
23%inclusion5 decks22 decks
17%synergy
Talisman of Hierarchy
14%inclusion3 decks22 decks
-30%synergy
Lands
Tundra
100%inclusion22 decks22 decks
84%synergy
Underground Sea
100%inclusion22 decks22 decks
84%synergy
Godless Shrine
100%inclusion22 decks22 decks
49%synergy
Scrubland
100%inclusion22 decks22 decks
84%synergy
Marsh Flats
100%inclusion22 decks22 decks
64%synergy
Polluted Delta
100%inclusion22 decks22 decks
62%synergy
Flooded Strand
100%inclusion22 decks22 decks
62%synergy
Watery Grave
100%inclusion22 decks22 decks
49%synergy
Command Tower
95%inclusion21 decks22 decks
3%synergy
Mana Confluence
95%inclusion21 decks22 decks
82%synergy
Hallowed Fountain
95%inclusion21 decks22 decks
45%synergy
Bloodstained Mire
95%inclusion21 decks22 decks
85%synergy
Gemstone Caverns
91%inclusion20 decks22 decks
83%synergy
Scalding Tarn
91%inclusion20 decks22 decks
80%synergy
City of Brass
91%inclusion20 decks22 decks
76%synergy
Misty Rainforest
86%inclusion19 decks22 decks
75%synergy
Verdant Catacombs
86%inclusion19 decks22 decks
76%synergy
Windswept Heath
82%inclusion18 decks22 decks
72%synergy
Undercity Sewers
73%inclusion16 decks22 decks
58%synergy
Exotic Orchard
73%inclusion16 decks22 decks
14%synergy
Arid Mesa
73%inclusion16 decks22 decks
63%synergy
Morphic Pool
64%inclusion14 decks22 decks
30%synergy
Starting Town
50%inclusion5 decks10 decks
46%synergy
Vault of Champions
45%inclusion10 decks22 decks
13%synergy
Sea of Clouds
41%inclusion9 decks22 decks
6%synergy
Island
36%inclusion8 decks22 decks
-57%synergy
Swamp
23%inclusion5 decks22 decks
-69%synergy
Sink into Stupor
18%inclusion4 decks22 decks
5%synergy
Meticulous Archive
18%inclusion4 decks22 decks
4%synergy
Tarnished Citadel
14%inclusion3 decks22 decks
13%synergy
Forbidden Orchard
14%inclusion3 decks22 decks
11%synergy
Shadowy Backstreet
9.1%inclusion2 decks22 decks
-4%synergy
Spire of Industry
9.1%inclusion2 decks22 decks
1%synergy
Cavern of Souls
9.1%inclusion2 decks22 decks
2%synergy
Plains
9.1%inclusion2 decks22 decks
-83%synergy
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