The Master of Keys (Commander) - cEDH Mill

The Master of Keys
Rank #312
44decks
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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
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Voracious Tome-Skimmer
100%inclusion1 decks1 decks
100%synergy
Wan Shi Tong, Librarian
75%inclusion6 decks8 decks
70%synergy
High Synergy Cards
Dance of the Dead
100%inclusion44 decks44 decks
98%synergy
Necromancy
98%inclusion43 decks44 decks
93%synergy
Animate Dead
100%inclusion44 decks44 decks
90%synergy
Silence
100%inclusion44 decks44 decks
90%synergy
Entomb
95%inclusion42 decks44 decks
89%synergy
Dress Down
91%inclusion40 decks44 decks
88%synergy
Abdel Adrian, Gorion's Ward
89%inclusion39 decks44 decks
87%synergy
Tainted Pact
93%inclusion41 decks44 decks
86%synergy
Force of Negation
93%inclusion41 decks44 decks
81%synergy
Dark Ritual
100%inclusion44 decks44 decks
81%synergy
Top Cards
Esper Sentinel
95%inclusion42 decks44 decks
68%synergy
Mystic Remora
95%inclusion42 decks44 decks
74%synergy
Swan Song
91%inclusion40 decks44 decks
71%synergy
Grand Abolisher
91%inclusion40 decks44 decks
76%synergy
Flusterstorm
89%inclusion39 decks44 decks
80%synergy
Mental Misstep
86%inclusion38 decks44 decks
79%synergy
Demonic Consultation
86%inclusion38 decks44 decks
78%synergy
Orcish Bowmasters
86%inclusion38 decks44 decks
75%synergy
Lotho, Corrupt Shirriff
84%inclusion37 decks44 decks
67%synergy
Sevinne's Reclamation
84%inclusion37 decks44 decks
75%synergy
Game Changers
Demonic Tutor
100%inclusion44 decks44 decks
79%synergy
Vampiric Tutor
100%inclusion44 decks44 decks
82%synergy
Thassa's Oracle
98%inclusion43 decks44 decks
88%synergy
Rhystic Study
98%inclusion43 decks44 decks
65%synergy
Mana Vault
98%inclusion43 decks44 decks
88%synergy
Force of Will
98%inclusion43 decks44 decks
85%synergy
Enlightened Tutor
98%inclusion43 decks44 decks
78%synergy
Smothering Tithe
95%inclusion42 decks44 decks
63%synergy
Chrome Mox
95%inclusion42 decks44 decks
86%synergy
Ancient Tomb
93%inclusion41 decks44 decks
80%synergy
Creatures
Valley Floodcaller
80%inclusion35 decks44 decks
75%synergy
Ranger-Captain of Eos
80%inclusion35 decks44 decks
73%synergy
Displacer Kitten
57%inclusion25 decks44 decks
50%synergy
Hullbreaker Horror
52%inclusion23 decks44 decks
46%synergy
Voice of Victory
50%inclusion15 decks30 decks
42%synergy
Opposition Agent
48%inclusion21 decks44 decks
39%synergy
Tataru Taru
48%inclusion10 decks21 decks
39%synergy
Lurrus of the Dream-Den
45%inclusion20 decks44 decks
44%synergy
Drannith Magistrate
43%inclusion19 decks44 decks
35%synergy
Archivist of Oghma
41%inclusion18 decks44 decks
34%synergy
Hedron Crab
41%inclusion18 decks44 decks
40%synergy
Mockingbird
41%inclusion18 decks44 decks
36%synergy
Auriok Salvagers
34%inclusion15 decks44 decks
34%synergy
Phyrexian Metamorph
27%inclusion12 decks44 decks
19%synergy
Ledger Shredder
27%inclusion12 decks44 decks
18%synergy
Talion, the Kindly Lord
23%inclusion10 decks44 decks
15%synergy
Leonin Relic-Warder
20%inclusion9 decks44 decks
20%synergy
Faerie Mastermind
20%inclusion9 decks44 decks
11%synergy
Ghostly Pilferer
20%inclusion9 decks44 decks
13%synergy
Psychic Frog
18%inclusion8 decks44 decks
11%synergy
Snapcaster Mage
14%inclusion6 decks44 decks
12%synergy
Dauthi Voidwalker
14%inclusion6 decks44 decks
8%synergy
High Fae Trickster
10%inclusion4 decks40 decks
5%synergy
Pollywog Prodigy
9.1%inclusion4 decks44 decks
5%synergy
Symbiote Spider-Man
7.1%inclusion1 decks14 decks
7%synergy
Spellseeker
6.8%inclusion3 decks44 decks
5%synergy
Inquisitive Glimmer
6.8%inclusion3 decks44 decks
-1%synergy
Walking Ballista
6.8%inclusion3 decks44 decks
4%synergy
Heliod, Sun-Crowned
6.8%inclusion3 decks44 decks
3%synergy
Overlord of the Balemurk
6.8%inclusion3 decks44 decks
5%synergy
Entity Tracker
6.8%inclusion3 decks44 decks
0%synergy
Instants
Intuition
82%inclusion36 decks44 decks
80%synergy
Swords to Plowshares
82%inclusion36 decks44 decks
14%synergy
Pact of Negation
82%inclusion36 decks44 decks
74%synergy
Mindbreak Trap
80%inclusion35 decks44 decks
73%synergy
Fierce Guardianship
80%inclusion35 decks44 decks
59%synergy
Borne Upon a Wind
77%inclusion34 decks44 decks
72%synergy
Cabal Ritual
64%inclusion28 decks44 decks
60%synergy
Mystical Tutor
64%inclusion28 decks44 decks
52%synergy
An Offer You Can't Refuse
59%inclusion26 decks44 decks
32%synergy
Cyclonic Rift
52%inclusion23 decks44 decks
28%synergy
Mana Drain
48%inclusion21 decks44 decks
30%synergy
Gifts Ungiven
43%inclusion19 decks44 decks
41%synergy
Into the Flood Maw
39%inclusion17 decks44 decks
35%synergy
Sink into Stupor
32%inclusion14 decks44 decks
19%synergy
Chain of Vapor
27%inclusion12 decks44 decks
24%synergy
Retraction Helix
23%inclusion10 decks44 decks
22%synergy
Ad Nauseam
18%inclusion8 decks44 decks
16%synergy
Culling the Weak
16%inclusion7 decks44 decks
14%synergy
Darkblast
16%inclusion7 decks44 decks
16%synergy
Brain Freeze
14%inclusion6 decks44 decks
13%synergy
Banishing Knack
14%inclusion6 decks44 decks
13%synergy
Path to Exile
11%inclusion5 decks44 decks
-31%synergy
Strix Serenade
9.1%inclusion4 decks44 decks
5%synergy
Deadly Rollick
6.8%inclusion3 decks44 decks
-7%synergy
Orim's Chant
6.8%inclusion3 decks44 decks
5%synergy
Counterspell
6.8%inclusion3 decks44 decks
-34%synergy
Spell Pierce
6.8%inclusion3 decks44 decks
4%synergy
Dismember
6.8%inclusion3 decks44 decks
1%synergy
Sorceries
Imperial Seal
82%inclusion36 decks44 decks
74%synergy
Reanimate
48%inclusion21 decks44 decks
32%synergy
Toxic Deluge
34%inclusion15 decks44 decks
14%synergy
Lively Dirge
25%inclusion11 decks44 decks
24%synergy
Demonic Counsel
20%inclusion9 decks44 decks
19%synergy
Beseech the Mirror
20%inclusion9 decks44 decks
16%synergy
Windfall
18%inclusion8 decks44 decks
4%synergy
Mnemonic Betrayal
16%inclusion7 decks44 decks
13%synergy
Cabal Therapy
14%inclusion6 decks44 decks
14%synergy
Diabolic Intent
11%inclusion5 decks44 decks
6%synergy
Unmarked Grave
11%inclusion5 decks44 decks
10%synergy
Space-Time Anomaly
7.1%inclusion1 decks14 decks
5%synergy
Praetor's Grasp
6.8%inclusion3 decks44 decks
4%synergy
Singularity Rupture
6.7%inclusion1 decks15 decks
4%synergy
Utility Artifacts
The One Ring
77%inclusion34 decks44 decks
64%synergy
Wishclaw Talisman
64%inclusion28 decks44 decks
55%synergy
Cursed Totem
9.1%inclusion4 decks44 decks
7%synergy
Agatha's Soul Cauldron
6.8%inclusion3 decks44 decks
6%synergy
Phoenix Down
5.0%inclusion1 decks20 decks
5%synergy
Enchantments
Tinybones Joins Up
73%inclusion32 decks44 decks
71%synergy
Blind Obedience
61%inclusion27 decks44 decks
49%synergy
Necropotence
61%inclusion27 decks44 decks
55%synergy
Amphibian Downpour
55%inclusion24 decks44 decks
50%synergy
Mirrormade
48%inclusion21 decks44 decks
38%synergy
Static Prison
48%inclusion21 decks44 decks
47%synergy
Touch the Spirit Realm
45%inclusion20 decks44 decks
43%synergy
The Meathook Massacre
41%inclusion18 decks44 decks
37%synergy
Ripples of Undeath
41%inclusion18 decks44 decks
38%synergy
Copy Artifact
39%inclusion17 decks44 decks
38%synergy
Founding the Third Path
27%inclusion12 decks44 decks
27%synergy
Steal Enchantment
25%inclusion11 decks44 decks
24%synergy
Counterbalance
23%inclusion10 decks44 decks
21%synergy
Chthonian Nightmare
16%inclusion7 decks44 decks
15%synergy
Chains of Mephistopheles
16%inclusion7 decks44 decks
16%synergy
Copy Enchantment
14%inclusion6 decks44 decks
9%synergy
Aura of Silence
14%inclusion6 decks44 decks
10%synergy
Seal of Cleansing
9.1%inclusion4 decks44 decks
8%synergy
Monologue Tax
9.1%inclusion4 decks44 decks
3%synergy
Seal of Removal
9.1%inclusion4 decks44 decks
9%synergy
Trouble in Pairs
9.1%inclusion4 decks44 decks
4%synergy
Dance of Many
6.8%inclusion3 decks44 decks
7%synergy
Black Market Connections
6.8%inclusion3 decks44 decks
-7%synergy
Planeswalkers
Teferi, Time Raveler
48%inclusion21 decks44 decks
39%synergy
Tezzeret, Cruel Captain
5.6%inclusion1 decks18 decks
4%synergy
Utility Lands
Otawara, Soaring City
89%inclusion39 decks44 decks
69%synergy
Urza's Saga
36%inclusion16 decks44 decks
24%synergy
Emergence Zone
32%inclusion14 decks44 decks
30%synergy
Minamo, School at Water's Edge
27%inclusion12 decks44 decks
23%synergy
Serra's Sanctum
16%inclusion7 decks44 decks
14%synergy
Cephalid Coliseum
14%inclusion6 decks44 decks
10%synergy
Takenuma, Abandoned Mire
11%inclusion5 decks44 decks
5%synergy
Urborg, Tomb of Yawgmoth
11%inclusion5 decks44 decks
-2%synergy
City of Traitors
11%inclusion5 decks44 decks
10%synergy
Hall of Heliod's Generosity
6.8%inclusion3 decks44 decks
-6%synergy
Mana Artifacts
Arcane Signet
100%inclusion44 decks44 decks
12%synergy
Sol Ring
100%inclusion44 decks44 decks
10%synergy
Lotus Petal
95%inclusion42 decks44 decks
85%synergy
Fellwar Stone
86%inclusion38 decks44 decks
52%synergy
Mox Diamond
86%inclusion38 decks44 decks
79%synergy
Mox Opal
82%inclusion36 decks44 decks
73%synergy
Talisman of Dominance
80%inclusion35 decks44 decks
30%synergy
Lion's Eye Diamond
77%inclusion34 decks44 decks
75%synergy
Talisman of Progress
48%inclusion21 decks44 decks
5%synergy
Mox Amber
36%inclusion16 decks44 decks
30%synergy
Grim Monolith
32%inclusion14 decks44 decks
28%synergy
Talisman of Hierarchy
32%inclusion14 decks44 decks
-12%synergy
Lands
Command Tower
98%inclusion43 decks44 decks
5%synergy
Godless Shrine
98%inclusion43 decks44 decks
47%synergy
Polluted Delta
98%inclusion43 decks44 decks
60%synergy
Hallowed Fountain
98%inclusion43 decks44 decks
48%synergy
Flooded Strand
98%inclusion43 decks44 decks
60%synergy
Watery Grave
98%inclusion43 decks44 decks
48%synergy
Marsh Flats
95%inclusion42 decks44 decks
59%synergy
Tundra
93%inclusion41 decks44 decks
77%synergy
Underground Sea
93%inclusion41 decks44 decks
77%synergy
Gemstone Caverns
93%inclusion41 decks44 decks
85%synergy
Scrubland
93%inclusion41 decks44 decks
77%synergy
City of Brass
91%inclusion40 decks44 decks
76%synergy
Mana Confluence
89%inclusion39 decks44 decks
75%synergy
Bloodstained Mire
82%inclusion36 decks44 decks
71%synergy
Verdant Catacombs
80%inclusion35 decks44 decks
69%synergy
Windswept Heath
77%inclusion34 decks44 decks
67%synergy
Scalding Tarn
77%inclusion34 decks44 decks
66%synergy
Misty Rainforest
75%inclusion33 decks44 decks
64%synergy
Exotic Orchard
70%inclusion31 decks44 decks
12%synergy
Morphic Pool
68%inclusion30 decks44 decks
34%synergy
Arid Mesa
66%inclusion29 decks44 decks
56%synergy
Undercity Sewers
59%inclusion26 decks44 decks
45%synergy
Sea of Clouds
55%inclusion24 decks44 decks
19%synergy
Vault of Champions
45%inclusion20 decks44 decks
13%synergy
Island
43%inclusion19 decks44 decks
-49%synergy
Swamp
39%inclusion17 decks44 decks
-53%synergy
Starting Town
38%inclusion8 decks21 decks
34%synergy
Sink into Stupor
32%inclusion14 decks44 decks
19%synergy
Meticulous Archive
32%inclusion14 decks44 decks
18%synergy
Cavern of Souls
27%inclusion12 decks44 decks
20%synergy
Plains
27%inclusion12 decks44 decks
-64%synergy
Shadowy Backstreet
18%inclusion8 decks44 decks
6%synergy
Spire of Industry
11%inclusion5 decks44 decks
3%synergy
Forbidden Orchard
11%inclusion5 decks44 decks
9%synergy
Talon Gates of Madara
9.1%inclusion4 decks44 decks
8%synergy
Prismatic Vista
6.8%inclusion3 decks44 decks
3%synergy
Gemstone Mine
6.8%inclusion3 decks44 decks
6%synergy
Caves of Koilos
6.8%inclusion3 decks44 decks
-29%synergy
Raffine's Tower
6.8%inclusion3 decks44 decks
-34%synergy
Underground River
6.8%inclusion3 decks44 decks
-26%synergy
Adarkar Wastes
6.8%inclusion3 decks44 decks
-24%synergy
Gloomlake Verge
6.8%inclusion3 decks44 decks
-4%synergy
Bleachbone Verge
6.1%inclusion2 decks33 decks
-2%synergy
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