The Master of Keys (Commander) - cEDH Combo

The Master of Keys
Rank #316
87decks
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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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Wan Shi Tong, Librarian
73%inclusion8 decks11 decks
68%synergy
High Synergy Cards
Animate Dead
99%inclusion86 decks87 decks
89%synergy
Abdel Adrian, Gorion's Ward
91%inclusion79 decks87 decks
89%synergy
Necromancy
93%inclusion81 decks87 decks
88%synergy
Tainted Pact
95%inclusion83 decks87 decks
88%synergy
Dance of the Dead
89%inclusion77 decks87 decks
86%synergy
Entomb
93%inclusion81 decks87 decks
86%synergy
Dress Down
86%inclusion75 decks87 decks
84%synergy
Demonic Consultation
92%inclusion80 decks87 decks
84%synergy
Silence
92%inclusion80 decks87 decks
82%synergy
Flusterstorm
87%inclusion76 decks87 decks
79%synergy
Top Cards
Dark Ritual
98%inclusion85 decks87 decks
78%synergy
Esper Sentinel
97%inclusion84 decks87 decks
69%synergy
Mystic Remora
97%inclusion84 decks87 decks
75%synergy
Grand Abolisher
92%inclusion80 decks87 decks
77%synergy
Swan Song
89%inclusion77 decks87 decks
69%synergy
Orcish Bowmasters
86%inclusion75 decks87 decks
75%synergy
Force of Negation
85%inclusion74 decks87 decks
73%synergy
Mental Misstep
83%inclusion72 decks87 decks
76%synergy
Mindbreak Trap
83%inclusion72 decks87 decks
76%synergy
Pact of Negation
83%inclusion72 decks87 decks
75%synergy
Game Changers
Thassa's Oracle
99%inclusion86 decks87 decks
89%synergy
Demonic Tutor
95%inclusion83 decks87 decks
74%synergy
Rhystic Study
95%inclusion83 decks87 decks
63%synergy
Vampiric Tutor
95%inclusion83 decks87 decks
77%synergy
Mana Vault
94%inclusion82 decks87 decks
85%synergy
Chrome Mox
94%inclusion82 decks87 decks
85%synergy
Enlightened Tutor
94%inclusion82 decks87 decks
74%synergy
Force of Will
92%inclusion80 decks87 decks
79%synergy
Smothering Tithe
91%inclusion79 decks87 decks
59%synergy
Ancient Tomb
91%inclusion79 decks87 decks
78%synergy
Creatures
Valley Floodcaller
82%inclusion71 decks87 decks
77%synergy
Ranger-Captain of Eos
80%inclusion70 decks87 decks
74%synergy
Lotho, Corrupt Shirriff
79%inclusion69 decks87 decks
62%synergy
Displacer Kitten
61%inclusion53 decks87 decks
54%synergy
Voice of Victory
56%inclusion28 decks50 decks
48%synergy
Archivist of Oghma
53%inclusion46 decks87 decks
46%synergy
Mockingbird
53%inclusion46 decks87 decks
48%synergy
Opposition Agent
49%inclusion43 decks87 decks
41%synergy
Hullbreaker Horror
49%inclusion43 decks87 decks
43%synergy
Drannith Magistrate
41%inclusion36 decks87 decks
33%synergy
Lurrus of the Dream-Den
39%inclusion34 decks87 decks
37%synergy
Auriok Salvagers
34%inclusion30 decks87 decks
34%synergy
Tataru Taru
31%inclusion11 decks35 decks
23%synergy
Phyrexian Metamorph
30%inclusion26 decks87 decks
21%synergy
Faerie Mastermind
29%inclusion25 decks87 decks
19%synergy
Hedron Crab
26%inclusion23 decks87 decks
26%synergy
Ledger Shredder
25%inclusion22 decks87 decks
16%synergy
Psychic Frog
22%inclusion19 decks87 decks
15%synergy
Talion, the Kindly Lord
21%inclusion18 decks87 decks
13%synergy
Pollywog Prodigy
18%inclusion16 decks87 decks
14%synergy
Ghostly Pilferer
17%inclusion15 decks87 decks
10%synergy
Leonin Relic-Warder
13%inclusion11 decks87 decks
12%synergy
Dauthi Voidwalker
11%inclusion10 decks87 decks
5%synergy
Snapcaster Mage
10%inclusion9 decks87 decks
8%synergy
Hoarding Broodlord
9.2%inclusion8 decks87 decks
7%synergy
Spellseeker
9.2%inclusion8 decks87 decks
8%synergy
Malevolent Hermit
9.2%inclusion8 decks87 decks
8%synergy
Emet-Selch of the Third Seat
8.6%inclusion3 decks35 decks
-1%synergy
Phantasmal Image
8.0%inclusion7 decks87 decks
5%synergy
Flesh Duplicate
6.9%inclusion6 decks87 decks
6%synergy
High Fae Trickster
6.6%inclusion5 decks76 decks
2%synergy
Volatile Stormdrake
5.7%inclusion5 decks87 decks
4%synergy
Zur the Enchanter
5.7%inclusion5 decks87 decks
0%synergy
Instants
Swords to Plowshares
77%inclusion67 decks87 decks
9%synergy
Fierce Guardianship
76%inclusion66 decks87 decks
55%synergy
Intuition
75%inclusion65 decks87 decks
73%synergy
Borne Upon a Wind
72%inclusion63 decks87 decks
68%synergy
Mystical Tutor
71%inclusion62 decks87 decks
60%synergy
Cabal Ritual
63%inclusion55 decks87 decks
60%synergy
Cyclonic Rift
60%inclusion52 decks87 decks
35%synergy
An Offer You Can't Refuse
55%inclusion48 decks87 decks
29%synergy
Into the Flood Maw
41%inclusion36 decks87 decks
38%synergy
Gifts Ungiven
39%inclusion34 decks87 decks
37%synergy
Chain of Vapor
37%inclusion32 decks87 decks
33%synergy
Mana Drain
33%inclusion29 decks87 decks
16%synergy
Sink into Stupor
31%inclusion27 decks87 decks
18%synergy
Retraction Helix
22%inclusion19 decks87 decks
21%synergy
Culling the Weak
17%inclusion15 decks87 decks
16%synergy
Brain Freeze
16%inclusion14 decks87 decks
16%synergy
Ad Nauseam
16%inclusion14 decks87 decks
14%synergy
Darkblast
15%inclusion13 decks87 decks
15%synergy
Dispel
13%inclusion11 decks87 decks
9%synergy
Banishing Knack
13%inclusion11 decks87 decks
12%synergy
Deadly Rollick
10%inclusion9 decks87 decks
-4%synergy
Path to Exile
10%inclusion9 decks87 decks
-32%synergy
Sacrifice
9.2%inclusion8 decks87 decks
9%synergy
Dovin's Veto
8.0%inclusion7 decks87 decks
-17%synergy
Orim's Chant
8.0%inclusion7 decks87 decks
7%synergy
Saw in Half
8.0%inclusion7 decks87 decks
6%synergy
Counterspell
8.0%inclusion7 decks87 decks
-33%synergy
Lim-Dûl's Vault
6.9%inclusion6 decks87 decks
3%synergy
Strix Serenade
6.9%inclusion6 decks87 decks
3%synergy
Rain of Filth
5.7%inclusion5 decks87 decks
6%synergy
Spell Pierce
5.7%inclusion5 decks87 decks
3%synergy
Sorceries
Imperial Seal
80%inclusion70 decks87 decks
73%synergy
Sevinne's Reclamation
75%inclusion65 decks87 decks
66%synergy
Toxic Deluge
39%inclusion34 decks87 decks
20%synergy
Reanimate
38%inclusion33 decks87 decks
22%synergy
Lively Dirge
30%inclusion26 decks87 decks
29%synergy
Beseech the Mirror
23%inclusion20 decks87 decks
19%synergy
Windfall
22%inclusion19 decks87 decks
8%synergy
Demonic Counsel
22%inclusion19 decks87 decks
21%synergy
Mnemonic Betrayal
16%inclusion14 decks87 decks
13%synergy
Cabal Therapy
14%inclusion12 decks87 decks
14%synergy
Unmarked Grave
11%inclusion10 decks87 decks
10%synergy
Yawgmoth's Will
10%inclusion9 decks87 decks
9%synergy
Praetor's Grasp
10%inclusion9 decks87 decks
7%synergy
Diabolic Intent
8.0%inclusion7 decks87 decks
3%synergy
Gitaxian Probe
5.7%inclusion5 decks87 decks
4%synergy
Utility Artifacts
The One Ring
77%inclusion67 decks87 decks
63%synergy
Wishclaw Talisman
68%inclusion59 decks87 decks
60%synergy
Cursed Totem
13%inclusion11 decks87 decks
10%synergy
Agatha's Soul Cauldron
6.9%inclusion6 decks87 decks
6%synergy
Enchantments
Tinybones Joins Up
69%inclusion60 decks87 decks
68%synergy
Necropotence
69%inclusion60 decks87 decks
62%synergy
Blind Obedience
64%inclusion56 decks87 decks
52%synergy
Touch the Spirit Realm
51%inclusion44 decks87 decks
48%synergy
Amphibian Downpour
45%inclusion39 decks87 decks
40%synergy
Ripples of Undeath
44%inclusion38 decks87 decks
41%synergy
Mirrormade
38%inclusion33 decks87 decks
28%synergy
Copy Artifact
38%inclusion33 decks87 decks
37%synergy
Static Prison
36%inclusion31 decks87 decks
35%synergy
The Meathook Massacre
28%inclusion24 decks87 decks
24%synergy
Steal Enchantment
28%inclusion24 decks87 decks
27%synergy
Founding the Third Path
20%inclusion17 decks87 decks
19%synergy
Counterbalance
18%inclusion16 decks87 decks
17%synergy
Chthonian Nightmare
17%inclusion15 decks87 decks
17%synergy
Chains of Mephistopheles
16%inclusion14 decks87 decks
16%synergy
Trouble in Pairs
11%inclusion10 decks87 decks
6%synergy
Copy Enchantment
11%inclusion10 decks87 decks
7%synergy
Monologue Tax
9.2%inclusion8 decks87 decks
3%synergy
Aura of Silence
9.2%inclusion8 decks87 decks
6%synergy
Leyline of Anticipation
5.7%inclusion5 decks87 decks
1%synergy
Second Chance
5.7%inclusion5 decks87 decks
6%synergy
Planeswalkers
Teferi, Time Raveler
55%inclusion48 decks87 decks
47%synergy
Utility Lands
Otawara, Soaring City
89%inclusion77 decks87 decks
69%synergy
Urza's Saga
39%inclusion34 decks87 decks
27%synergy
Emergence Zone
31%inclusion27 decks87 decks
29%synergy
Minamo, School at Water's Edge
24%inclusion21 decks87 decks
20%synergy
Cephalid Coliseum
22%inclusion19 decks87 decks
18%synergy
Takenuma, Abandoned Mire
13%inclusion11 decks87 decks
6%synergy
City of Traitors
8.0%inclusion7 decks87 decks
7%synergy
Hall of Heliod's Generosity
6.9%inclusion6 decks87 decks
-6%synergy
Mistrise Village
6.0%inclusion3 decks50 decks
2%synergy
Phyrexian Tower
5.7%inclusion5 decks87 decks
2%synergy
Serra's Sanctum
5.7%inclusion5 decks87 decks
4%synergy
Urborg, Tomb of Yawgmoth
5.7%inclusion5 decks87 decks
-7%synergy
Mana Artifacts
Sol Ring
100%inclusion87 decks87 decks
10%synergy
Arcane Signet
98%inclusion85 decks87 decks
10%synergy
Lotus Petal
92%inclusion80 decks87 decks
81%synergy
Talisman of Dominance
86%inclusion75 decks87 decks
37%synergy
Mox Diamond
83%inclusion72 decks87 decks
75%synergy
Fellwar Stone
79%inclusion69 decks87 decks
45%synergy
Mox Opal
77%inclusion67 decks87 decks
68%synergy
Lion's Eye Diamond
67%inclusion58 decks87 decks
64%synergy
Talisman of Progress
59%inclusion51 decks87 decks
16%synergy
Mox Amber
45%inclusion39 decks87 decks
39%synergy
Grim Monolith
36%inclusion31 decks87 decks
32%synergy
Talisman of Hierarchy
33%inclusion29 decks87 decks
-10%synergy
Dimir Signet
6.9%inclusion6 decks87 decks
-26%synergy
Orzhov Signet
5.7%inclusion5 decks87 decks
-29%synergy
Lands
Command Tower
99%inclusion86 decks87 decks
6%synergy
Polluted Delta
97%inclusion84 decks87 decks
59%synergy
Hallowed Fountain
97%inclusion84 decks87 decks
48%synergy
Godless Shrine
95%inclusion83 decks87 decks
45%synergy
Watery Grave
95%inclusion83 decks87 decks
46%synergy
Flooded Strand
94%inclusion82 decks87 decks
56%synergy
Marsh Flats
90%inclusion78 decks87 decks
54%synergy
City of Brass
89%inclusion77 decks87 decks
73%synergy
Gemstone Caverns
87%inclusion76 decks87 decks
80%synergy
Mana Confluence
86%inclusion75 decks87 decks
72%synergy
Tundra
83%inclusion72 decks87 decks
67%synergy
Underground Sea
83%inclusion72 decks87 decks
67%synergy
Scrubland
83%inclusion72 decks87 decks
67%synergy
Bloodstained Mire
83%inclusion72 decks87 decks
72%synergy
Misty Rainforest
77%inclusion67 decks87 decks
66%synergy
Verdant Catacombs
76%inclusion66 decks87 decks
66%synergy
Scalding Tarn
75%inclusion65 decks87 decks
63%synergy
Windswept Heath
72%inclusion63 decks87 decks
63%synergy
Morphic Pool
70%inclusion61 decks87 decks
36%synergy
Exotic Orchard
69%inclusion60 decks87 decks
10%synergy
Arid Mesa
61%inclusion53 decks87 decks
51%synergy
Undercity Sewers
59%inclusion51 decks87 decks
45%synergy
Sea of Clouds
53%inclusion46 decks87 decks
17%synergy
Island
48%inclusion42 decks87 decks
-44%synergy
Vault of Champions
46%inclusion40 decks87 decks
13%synergy
Swamp
44%inclusion38 decks87 decks
-48%synergy
Starting Town
31%inclusion11 decks35 decks
27%synergy
Sink into Stupor
31%inclusion27 decks87 decks
18%synergy
Plains
30%inclusion26 decks87 decks
-62%synergy
Meticulous Archive
22%inclusion19 decks87 decks
8%synergy
Forbidden Orchard
20%inclusion17 decks87 decks
17%synergy
Cavern of Souls
20%inclusion17 decks87 decks
13%synergy
Spire of Industry
16%inclusion14 decks87 decks
7%synergy
Shadowy Backstreet
14%inclusion12 decks87 decks
1%synergy
Underground River
10%inclusion9 decks87 decks
-22%synergy
Gloomlake Verge
10%inclusion9 decks87 decks
-1%synergy
Caves of Koilos
8.0%inclusion7 decks87 decks
-27%synergy
Reflecting Pool
8.0%inclusion7 decks87 decks
0%synergy
Talon Gates of Madara
6.9%inclusion6 decks87 decks
6%synergy
Adarkar Wastes
6.9%inclusion6 decks87 decks
-24%synergy
Prismatic Vista
5.7%inclusion5 decks87 decks
2%synergy
Glacial Fortress
5.7%inclusion5 decks87 decks
-34%synergy
Raffine's Tower
5.7%inclusion5 decks87 decks
-35%synergy
Silent Clearing
5.7%inclusion5 decks87 decks
3%synergy
Snow-Covered Swamp
5.7%inclusion5 decks87 decks
3%synergy
Floodfarm Verge
5.7%inclusion5 decks87 decks
-5%synergy
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