The Master of Keys (Commander) - cEDH Mill

The Master of Keys
Rank #316
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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Wan Shi Tong, Librarian
67%inclusion6 decks9 decks
62%synergy
High Synergy Cards
Dance of the Dead
100%inclusion45 decks45 decks
98%synergy
Necromancy
98%inclusion44 decks45 decks
93%synergy
Animate Dead
100%inclusion45 decks45 decks
90%synergy
Entomb
96%inclusion43 decks45 decks
89%synergy
Silence
98%inclusion44 decks45 decks
87%synergy
Abdel Adrian, Gorion's Ward
89%inclusion40 decks45 decks
87%synergy
Dress Down
89%inclusion40 decks45 decks
86%synergy
Tainted Pact
91%inclusion41 decks45 decks
84%synergy
Force of Negation
93%inclusion42 decks45 decks
81%synergy
Dark Ritual
100%inclusion45 decks45 decks
81%synergy
Top Cards
Esper Sentinel
96%inclusion43 decks45 decks
68%synergy
Mystic Remora
96%inclusion43 decks45 decks
74%synergy
Swan Song
91%inclusion41 decks45 decks
72%synergy
Grand Abolisher
91%inclusion41 decks45 decks
77%synergy
Flusterstorm
89%inclusion40 decks45 decks
81%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
68%synergy
Sevinne's Reclamation
82%inclusion37 decks45 decks
73%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
65%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
63%synergy
Chrome Mox
96%inclusion43 decks45 decks
86%synergy
Ancient Tomb
91%inclusion41 decks45 decks
78%synergy
Creatures
Valley Floodcaller
80%inclusion36 decks45 decks
76%synergy
Ranger-Captain of Eos
80%inclusion36 decks45 decks
73%synergy
Displacer Kitten
58%inclusion26 decks45 decks
51%synergy
Hullbreaker Horror
53%inclusion24 decks45 decks
47%synergy
Opposition Agent
49%inclusion22 decks45 decks
40%synergy
Voice of Victory
48%inclusion15 decks31 decks
40%synergy
Lurrus of the Dream-Den
47%inclusion21 decks45 decks
45%synergy
Hedron Crab
42%inclusion19 decks45 decks
42%synergy
Drannith Magistrate
42%inclusion19 decks45 decks
34%synergy
Mockingbird
42%inclusion19 decks45 decks
38%synergy
Tataru Taru
41%inclusion9 decks22 decks
33%synergy
Archivist of Oghma
40%inclusion18 decks45 decks
33%synergy
Auriok Salvagers
33%inclusion15 decks45 decks
33%synergy
Ledger Shredder
29%inclusion13 decks45 decks
20%synergy
Phyrexian Metamorph
27%inclusion12 decks45 decks
18%synergy
Talion, the Kindly Lord
24%inclusion11 decks45 decks
16%synergy
Ghostly Pilferer
24%inclusion11 decks45 decks
17%synergy
Leonin Relic-Warder
20%inclusion9 decks45 decks
20%synergy
Psychic Frog
20%inclusion9 decks45 decks
13%synergy
Faerie Mastermind
18%inclusion8 decks45 decks
8%synergy
Snapcaster Mage
13%inclusion6 decks45 decks
11%synergy
Dauthi Voidwalker
13%inclusion6 decks45 decks
7%synergy
Pollywog Prodigy
8.9%inclusion4 decks45 decks
5%synergy
High Fae Trickster
7.3%inclusion3 decks41 decks
3%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
Swords to Plowshares
82%inclusion37 decks45 decks
14%synergy
Intuition
80%inclusion36 decks45 decks
78%synergy
Pact of Negation
80%inclusion36 decks45 decks
72%synergy
Mindbreak Trap
78%inclusion35 decks45 decks
71%synergy
Fierce Guardianship
78%inclusion35 decks45 decks
57%synergy
Borne Upon a Wind
76%inclusion34 decks45 decks
71%synergy
Mystical Tutor
64%inclusion29 decks45 decks
53%synergy
An Offer You Can't Refuse
62%inclusion28 decks45 decks
36%synergy
Cabal Ritual
62%inclusion28 decks45 decks
59%synergy
Cyclonic Rift
56%inclusion25 decks45 decks
31%synergy
Mana Drain
49%inclusion22 decks45 decks
31%synergy
Gifts Ungiven
44%inclusion20 decks45 decks
42%synergy
Into the Flood Maw
38%inclusion17 decks45 decks
34%synergy
Sink into Stupor
31%inclusion14 decks45 decks
19%synergy
Chain of Vapor
27%inclusion12 decks45 decks
23%synergy
Retraction Helix
22%inclusion10 decks45 decks
21%synergy
Ad Nauseam
18%inclusion8 decks45 decks
15%synergy
Culling the Weak
16%inclusion7 decks45 decks
14%synergy
Darkblast
16%inclusion7 decks45 decks
15%synergy
Brain Freeze
13%inclusion6 decks45 decks
13%synergy
Banishing Knack
13%inclusion6 decks45 decks
13%synergy
Strix Serenade
11%inclusion5 decks45 decks
7%synergy
Path to Exile
11%inclusion5 decks45 decks
-31%synergy
Deadly Rollick
6.7%inclusion3 decks45 decks
-7%synergy
Orim's Chant
6.7%inclusion3 decks45 decks
5%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
Imperial Seal
80%inclusion36 decks45 decks
72%synergy
Reanimate
47%inclusion21 decks45 decks
31%synergy
Toxic Deluge
36%inclusion16 decks45 decks
16%synergy
Lively Dirge
27%inclusion12 decks45 decks
25%synergy
Windfall
20%inclusion9 decks45 decks
6%synergy
Demonic Counsel
20%inclusion9 decks45 decks
19%synergy
Beseech the Mirror
20%inclusion9 decks45 decks
16%synergy
Mnemonic Betrayal
16%inclusion7 decks45 decks
13%synergy
Cabal Therapy
13%inclusion6 decks45 decks
13%synergy
Diabolic Intent
13%inclusion6 decks45 decks
8%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
80%inclusion36 decks45 decks
66%synergy
Wishclaw Talisman
64%inclusion29 decks45 decks
56%synergy
Cursed Totem
8.9%inclusion4 decks45 decks
7%synergy
Sensei's Divining Top
6.7%inclusion3 decks45 decks
-3%synergy
Agatha's Soul Cauldron
6.7%inclusion3 decks45 decks
6%synergy
Enchantments
Tinybones Joins Up
73%inclusion33 decks45 decks
72%synergy
Blind Obedience
64%inclusion29 decks45 decks
52%synergy
Necropotence
62%inclusion28 decks45 decks
55%synergy
Amphibian Downpour
53%inclusion24 decks45 decks
49%synergy
Mirrormade
47%inclusion21 decks45 decks
37%synergy
Static Prison
47%inclusion21 decks45 decks
46%synergy
Touch the Spirit Realm
44%inclusion20 decks45 decks
42%synergy
The Meathook Massacre
42%inclusion19 decks45 decks
39%synergy
Ripples of Undeath
42%inclusion19 decks45 decks
39%synergy
Copy Artifact
38%inclusion17 decks45 decks
37%synergy
Steal Enchantment
29%inclusion13 decks45 decks
28%synergy
Founding the Third Path
27%inclusion12 decks45 decks
26%synergy
Counterbalance
22%inclusion10 decks45 decks
21%synergy
Chthonian Nightmare
16%inclusion7 decks45 decks
15%synergy
Chains of Mephistopheles
16%inclusion7 decks45 decks
15%synergy
Copy Enchantment
13%inclusion6 decks45 decks
9%synergy
Aura of Silence
13%inclusion6 decks45 decks
10%synergy
Seal of Cleansing
8.9%inclusion4 decks45 decks
7%synergy
Monologue Tax
8.9%inclusion4 decks45 decks
3%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
-7%synergy
Planeswalkers
Teferi, Time Raveler
49%inclusion22 decks45 decks
40%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
33%inclusion15 decks45 decks
31%synergy
Minamo, School at Water's Edge
27%inclusion12 decks45 decks
23%synergy
Serra's Sanctum
16%inclusion7 decks45 decks
14%synergy
Cephalid Coliseum
16%inclusion7 decks45 decks
12%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
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
84%inclusion38 decks45 decks
50%synergy
Mox Diamond
84%inclusion38 decks45 decks
77%synergy
Talisman of Dominance
80%inclusion36 decks45 decks
31%synergy
Mox Opal
80%inclusion36 decks45 decks
71%synergy
Lion's Eye Diamond
76%inclusion34 decks45 decks
73%synergy
Talisman of Progress
49%inclusion22 decks45 decks
6%synergy
Mox Amber
38%inclusion17 decks45 decks
32%synergy
Grim Monolith
33%inclusion15 decks45 decks
30%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
48%synergy
Polluted Delta
98%inclusion44 decks45 decks
61%synergy
Hallowed Fountain
98%inclusion44 decks45 decks
49%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
Gemstone Caverns
93%inclusion42 decks45 decks
86%synergy
Tundra
91%inclusion41 decks45 decks
75%synergy
Underground Sea
91%inclusion41 decks45 decks
75%synergy
Scrubland
91%inclusion41 decks45 decks
75%synergy
City of Brass
91%inclusion41 decks45 decks
76%synergy
Mana Confluence
87%inclusion39 decks45 decks
73%synergy
Bloodstained Mire
80%inclusion36 decks45 decks
69%synergy
Verdant Catacombs
78%inclusion35 decks45 decks
67%synergy
Windswept Heath
76%inclusion34 decks45 decks
66%synergy
Scalding Tarn
76%inclusion34 decks45 decks
64%synergy
Misty Rainforest
73%inclusion33 decks45 decks
62%synergy
Exotic Orchard
71%inclusion32 decks45 decks
13%synergy
Morphic Pool
69%inclusion31 decks45 decks
35%synergy
Arid Mesa
64%inclusion29 decks45 decks
54%synergy
Undercity Sewers
58%inclusion26 decks45 decks
44%synergy
Sea of Clouds
56%inclusion25 decks45 decks
20%synergy
Vault of Champions
47%inclusion21 decks45 decks
14%synergy
Island
44%inclusion20 decks45 decks
-48%synergy
Swamp
40%inclusion18 decks45 decks
-51%synergy
Starting Town
36%inclusion8 decks22 decks
32%synergy
Meticulous Archive
33%inclusion15 decks45 decks
20%synergy
Sink into Stupor
31%inclusion14 decks45 decks
19%synergy
Plains
29%inclusion13 decks45 decks
-63%synergy
Cavern of Souls
27%inclusion12 decks45 decks
20%synergy
Shadowy Backstreet
18%inclusion8 decks45 decks
5%synergy
Forbidden Orchard
13%inclusion6 decks45 decks
11%synergy
Spire of Industry
11%inclusion5 decks45 decks
2%synergy
Talon Gates of Madara
11%inclusion5 decks45 decks
10%synergy
Underground River
8.9%inclusion4 decks45 decks
-24%synergy
Adarkar Wastes
8.9%inclusion4 decks45 decks
-22%synergy
Gloomlake Verge
8.9%inclusion4 decks45 decks
-2%synergy
Bleachbone Verge
8.8%inclusion3 decks34 decks
0%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
Floodfarm Verge
6.7%inclusion3 decks45 decks
-4%synergy
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