The Master of Keys (Commander) - cEDH Mill

The Master of Keys
Rank #306
45decks
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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
25%inclusion1 decks4 decks
24%synergy
Mornsong Aria
25%inclusion1 decks4 decks
24%synergy
High Synergy Cards
Dance of the Dead
98%inclusion44 decks45 decks
96%synergy
Necromancy
98%inclusion44 decks45 decks
93%synergy
Silence
100%inclusion45 decks45 decks
90%synergy
Entomb
96%inclusion43 decks45 decks
89%synergy
Dress Down
91%inclusion41 decks45 decks
89%synergy
Animate Dead
98%inclusion44 decks45 decks
88%synergy
Tainted Pact
93%inclusion42 decks45 decks
86%synergy
Abdel Adrian, Gorion's Ward
87%inclusion39 decks45 decks
85%synergy
Force of Negation
93%inclusion42 decks45 decks
81%synergy
Flusterstorm
89%inclusion40 decks45 decks
81%synergy
Top Cards
Dark Ritual
100%inclusion45 decks45 decks
81%synergy
Esper Sentinel
96%inclusion43 decks45 decks
68%synergy
Mystic Remora
96%inclusion43 decks45 decks
74%synergy
Swan Song
91%inclusion41 decks45 decks
71%synergy
Grand Abolisher
91%inclusion41 decks45 decks
77%synergy
Mental Misstep
87%inclusion39 decks45 decks
80%synergy
Demonic Consultation
87%inclusion39 decks45 decks
78%synergy
Orcish Bowmasters
87%inclusion39 decks45 decks
76%synergy
Lotho, Corrupt Shirriff
84%inclusion38 decks45 decks
67%synergy
Imperial Seal
82%inclusion37 decks45 decks
75%synergy
Game Changers
Demonic Tutor
100%inclusion45 decks45 decks
79%synergy
Vampiric Tutor
100%inclusion45 decks45 decks
82%synergy
Thassa's Oracle
98%inclusion44 decks45 decks
88%synergy
Rhystic Study
98%inclusion44 decks45 decks
66%synergy
Mana Vault
98%inclusion44 decks45 decks
88%synergy
Force of Will
98%inclusion44 decks45 decks
85%synergy
Enlightened Tutor
98%inclusion44 decks45 decks
78%synergy
Smothering Tithe
96%inclusion43 decks45 decks
64%synergy
Chrome Mox
96%inclusion43 decks45 decks
86%synergy
Ancient Tomb
93%inclusion42 decks45 decks
80%synergy
Creatures
Valley Floodcaller
80%inclusion36 decks45 decks
76%synergy
Ranger-Captain of Eos
80%inclusion36 decks45 decks
74%synergy
Wan Shi Tong, Librarian
78%inclusion7 decks9 decks
72%synergy
Displacer Kitten
56%inclusion25 decks45 decks
48%synergy
Voice of Victory
52%inclusion16 decks31 decks
43%synergy
Hullbreaker Horror
51%inclusion23 decks45 decks
45%synergy
Tataru Taru
50%inclusion11 decks22 decks
42%synergy
Opposition Agent
49%inclusion22 decks45 decks
40%synergy
Lurrus of the Dream-Den
44%inclusion20 decks45 decks
43%synergy
Drannith Magistrate
42%inclusion19 decks45 decks
34%synergy
Mockingbird
42%inclusion19 decks45 decks
38%synergy
Archivist of Oghma
40%inclusion18 decks45 decks
33%synergy
Hedron Crab
38%inclusion17 decks45 decks
37%synergy
Auriok Salvagers
33%inclusion15 decks45 decks
33%synergy
Phyrexian Metamorph
27%inclusion12 decks45 decks
18%synergy
Ledger Shredder
27%inclusion12 decks45 decks
18%synergy
Talion, the Kindly Lord
22%inclusion10 decks45 decks
14%synergy
Faerie Mastermind
22%inclusion10 decks45 decks
13%synergy
Leonin Relic-Warder
20%inclusion9 decks45 decks
20%synergy
Psychic Frog
18%inclusion8 decks45 decks
11%synergy
Ghostly Pilferer
18%inclusion8 decks45 decks
10%synergy
Snapcaster Mage
13%inclusion6 decks45 decks
11%synergy
Dauthi Voidwalker
13%inclusion6 decks45 decks
7%synergy
High Fae Trickster
12%inclusion5 decks41 decks
8%synergy
Pollywog Prodigy
8.9%inclusion4 decks45 decks
5%synergy
Spellseeker
6.7%inclusion3 decks45 decks
5%synergy
Inquisitive Glimmer
6.7%inclusion3 decks45 decks
-1%synergy
Walking Ballista
6.7%inclusion3 decks45 decks
4%synergy
Heliod, Sun-Crowned
6.7%inclusion3 decks45 decks
3%synergy
Overlord of the Balemurk
6.7%inclusion3 decks45 decks
5%synergy
Entity Tracker
6.7%inclusion3 decks45 decks
0%synergy
Symbiote Spider-Man
6.7%inclusion1 decks15 decks
6%synergy
Instants
Intuition
82%inclusion37 decks45 decks
81%synergy
Pact of Negation
82%inclusion37 decks45 decks
74%synergy
Mindbreak Trap
80%inclusion36 decks45 decks
73%synergy
Swords to Plowshares
80%inclusion36 decks45 decks
12%synergy
Fierce Guardianship
80%inclusion36 decks45 decks
59%synergy
Borne Upon a Wind
78%inclusion35 decks45 decks
73%synergy
Cabal Ritual
64%inclusion29 decks45 decks
61%synergy
Mystical Tutor
64%inclusion29 decks45 decks
53%synergy
An Offer You Can't Refuse
60%inclusion27 decks45 decks
33%synergy
Cyclonic Rift
53%inclusion24 decks45 decks
29%synergy
Mana Drain
47%inclusion21 decks45 decks
29%synergy
Gifts Ungiven
42%inclusion19 decks45 decks
40%synergy
Into the Flood Maw
38%inclusion17 decks45 decks
34%synergy
Sink into Stupor
31%inclusion14 decks45 decks
18%synergy
Chain of Vapor
27%inclusion12 decks45 decks
23%synergy
Retraction Helix
24%inclusion11 decks45 decks
24%synergy
Darkblast
18%inclusion8 decks45 decks
18%synergy
Ad Nauseam
18%inclusion8 decks45 decks
15%synergy
Culling the Weak
16%inclusion7 decks45 decks
14%synergy
Banishing Knack
16%inclusion7 decks45 decks
15%synergy
Brain Freeze
13%inclusion6 decks45 decks
13%synergy
Path to Exile
11%inclusion5 decks45 decks
-31%synergy
Orim's Chant
8.9%inclusion4 decks45 decks
7%synergy
Strix Serenade
8.9%inclusion4 decks45 decks
5%synergy
Deadly Rollick
6.7%inclusion3 decks45 decks
-8%synergy
Counterspell
6.7%inclusion3 decks45 decks
-35%synergy
Spell Pierce
6.7%inclusion3 decks45 decks
4%synergy
Dismember
6.7%inclusion3 decks45 decks
1%synergy
Sorceries
Sevinne's Reclamation
82%inclusion37 decks45 decks
73%synergy
Reanimate
49%inclusion22 decks45 decks
33%synergy
Toxic Deluge
33%inclusion15 decks45 decks
14%synergy
Lively Dirge
24%inclusion11 decks45 decks
23%synergy
Beseech the Mirror
22%inclusion10 decks45 decks
18%synergy
Demonic Counsel
20%inclusion9 decks45 decks
19%synergy
Windfall
18%inclusion8 decks45 decks
4%synergy
Mnemonic Betrayal
16%inclusion7 decks45 decks
13%synergy
Cabal Therapy
13%inclusion6 decks45 decks
13%synergy
Diabolic Intent
11%inclusion5 decks45 decks
6%synergy
Unmarked Grave
11%inclusion5 decks45 decks
10%synergy
Praetor's Grasp
6.7%inclusion3 decks45 decks
4%synergy
Space-Time Anomaly
6.7%inclusion1 decks15 decks
5%synergy
Singularity Rupture
6.3%inclusion1 decks16 decks
4%synergy
Utility Artifacts
The One Ring
76%inclusion34 decks45 decks
62%synergy
Wishclaw Talisman
62%inclusion28 decks45 decks
54%synergy
Cursed Totem
8.9%inclusion4 decks45 decks
7%synergy
Agatha's Soul Cauldron
6.7%inclusion3 decks45 decks
6%synergy
Enchantments
Tinybones Joins Up
71%inclusion32 decks45 decks
70%synergy
Necropotence
62%inclusion28 decks45 decks
55%synergy
Blind Obedience
60%inclusion27 decks45 decks
48%synergy
Amphibian Downpour
56%inclusion25 decks45 decks
51%synergy
Mirrormade
49%inclusion22 decks45 decks
39%synergy
Static Prison
47%inclusion21 decks45 decks
46%synergy
Touch the Spirit Realm
44%inclusion20 decks45 decks
42%synergy
The Meathook Massacre
40%inclusion18 decks45 decks
37%synergy
Ripples of Undeath
40%inclusion18 decks45 decks
37%synergy
Copy Artifact
38%inclusion17 decks45 decks
37%synergy
Founding the Third Path
29%inclusion13 decks45 decks
29%synergy
Counterbalance
24%inclusion11 decks45 decks
23%synergy
Steal Enchantment
24%inclusion11 decks45 decks
24%synergy
Copy Enchantment
18%inclusion8 decks45 decks
13%synergy
Chains of Mephistopheles
18%inclusion8 decks45 decks
18%synergy
Chthonian Nightmare
16%inclusion7 decks45 decks
15%synergy
Monologue Tax
13%inclusion6 decks45 decks
7%synergy
Aura of Silence
13%inclusion6 decks45 decks
10%synergy
Seal of Cleansing
8.9%inclusion4 decks45 decks
7%synergy
Seal of Removal
8.9%inclusion4 decks45 decks
8%synergy
Trouble in Pairs
8.9%inclusion4 decks45 decks
3%synergy
Dance of Many
6.7%inclusion3 decks45 decks
7%synergy
Black Market Connections
6.7%inclusion3 decks45 decks
-8%synergy
Planeswalkers
Teferi, Time Raveler
47%inclusion21 decks45 decks
38%synergy
Tezzeret, Cruel Captain
5.3%inclusion1 decks19 decks
3%synergy
Utility Lands
Otawara, Soaring City
89%inclusion40 decks45 decks
70%synergy
Urza's Saga
36%inclusion16 decks45 decks
24%synergy
Emergence Zone
31%inclusion14 decks45 decks
29%synergy
Minamo, School at Water's Edge
24%inclusion11 decks45 decks
20%synergy
Serra's Sanctum
16%inclusion7 decks45 decks
14%synergy
Cephalid Coliseum
13%inclusion6 decks45 decks
10%synergy
Takenuma, Abandoned Mire
11%inclusion5 decks45 decks
5%synergy
Urborg, Tomb of Yawgmoth
11%inclusion5 decks45 decks
-2%synergy
City of Traitors
11%inclusion5 decks45 decks
10%synergy
Phyrexian Tower
6.7%inclusion3 decks45 decks
3%synergy
Hall of Heliod's Generosity
6.7%inclusion3 decks45 decks
-6%synergy
Mana Artifacts
Arcane Signet
100%inclusion45 decks45 decks
12%synergy
Sol Ring
100%inclusion45 decks45 decks
10%synergy
Lotus Petal
96%inclusion43 decks45 decks
85%synergy
Fellwar Stone
87%inclusion39 decks45 decks
53%synergy
Mox Diamond
87%inclusion39 decks45 decks
79%synergy
Mox Opal
80%inclusion36 decks45 decks
71%synergy
Talisman of Dominance
78%inclusion35 decks45 decks
28%synergy
Lion's Eye Diamond
76%inclusion34 decks45 decks
73%synergy
Talisman of Progress
47%inclusion21 decks45 decks
3%synergy
Mox Amber
38%inclusion17 decks45 decks
32%synergy
Grim Monolith
31%inclusion14 decks45 decks
28%synergy
Talisman of Hierarchy
31%inclusion14 decks45 decks
-12%synergy
Lands
Command Tower
98%inclusion44 decks45 decks
5%synergy
Godless Shrine
98%inclusion44 decks45 decks
47%synergy
Polluted Delta
98%inclusion44 decks45 decks
60%synergy
Hallowed Fountain
98%inclusion44 decks45 decks
48%synergy
Flooded Strand
98%inclusion44 decks45 decks
60%synergy
Watery Grave
98%inclusion44 decks45 decks
48%synergy
Marsh Flats
96%inclusion43 decks45 decks
59%synergy
Tundra
93%inclusion42 decks45 decks
77%synergy
Underground Sea
93%inclusion42 decks45 decks
78%synergy
Gemstone Caverns
93%inclusion42 decks45 decks
86%synergy
Scrubland
93%inclusion42 decks45 decks
77%synergy
City of Brass
91%inclusion41 decks45 decks
76%synergy
Mana Confluence
89%inclusion40 decks45 decks
75%synergy
Bloodstained Mire
82%inclusion37 decks45 decks
71%synergy
Verdant Catacombs
80%inclusion36 decks45 decks
70%synergy
Windswept Heath
78%inclusion35 decks45 decks
68%synergy
Scalding Tarn
78%inclusion35 decks45 decks
67%synergy
Misty Rainforest
76%inclusion34 decks45 decks
64%synergy
Exotic Orchard
71%inclusion32 decks45 decks
12%synergy
Morphic Pool
69%inclusion31 decks45 decks
35%synergy
Arid Mesa
64%inclusion29 decks45 decks
55%synergy
Undercity Sewers
60%inclusion27 decks45 decks
46%synergy
Sea of Clouds
53%inclusion24 decks45 decks
18%synergy
Vault of Champions
44%inclusion20 decks45 decks
12%synergy
Island
42%inclusion19 decks45 decks
-50%synergy
Starting Town
41%inclusion9 decks22 decks
37%synergy
Swamp
40%inclusion18 decks45 decks
-51%synergy
Meticulous Archive
33%inclusion15 decks45 decks
20%synergy
Sink into Stupor
31%inclusion14 decks45 decks
18%synergy
Cavern of Souls
29%inclusion13 decks45 decks
22%synergy
Plains
27%inclusion12 decks45 decks
-65%synergy
Shadowy Backstreet
18%inclusion8 decks45 decks
5%synergy
Spire of Industry
11%inclusion5 decks45 decks
3%synergy
Forbidden Orchard
11%inclusion5 decks45 decks
9%synergy
Talon Gates of Madara
8.9%inclusion4 decks45 decks
8%synergy
Prismatic Vista
6.7%inclusion3 decks45 decks
3%synergy
Gemstone Mine
6.7%inclusion3 decks45 decks
6%synergy
Caves of Koilos
6.7%inclusion3 decks45 decks
-29%synergy
Raffine's Tower
6.7%inclusion3 decks45 decks
-34%synergy
Underground River
6.7%inclusion3 decks45 decks
-27%synergy
Adarkar Wastes
6.7%inclusion3 decks45 decks
-24%synergy
Gloomlake Verge
6.7%inclusion3 decks45 decks
-4%synergy
Bleachbone Verge
5.9%inclusion2 decks34 decks
-3%synergy
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