The Master of Keys (Commander) - cEDH Mill

The Master of Keys
Rank #305
48decks
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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
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Does Machines
13%inclusion1 decks8 decks
12%synergy
Voracious Tome-Skimmer
11%inclusion1 decks9 decks
10%synergy
High Synergy Cards
Dance of the Dead
98%inclusion47 decks48 decks
96%synergy
Necromancy
98%inclusion47 decks48 decks
93%synergy
Dress Down
92%inclusion44 decks48 decks
89%synergy
Animate Dead
98%inclusion47 decks48 decks
88%synergy
Silence
98%inclusion47 decks48 decks
88%synergy
Entomb
94%inclusion45 decks48 decks
87%synergy
Tainted Pact
92%inclusion44 decks48 decks
85%synergy
Abdel Adrian, Gorion's Ward
85%inclusion41 decks48 decks
84%synergy
Force of Negation
94%inclusion45 decks48 decks
82%synergy
Intuition
81%inclusion39 decks48 decks
80%synergy
Top Cards
Dark Ritual
98%inclusion47 decks48 decks
78%synergy
Esper Sentinel
96%inclusion46 decks48 decks
68%synergy
Mystic Remora
96%inclusion46 decks48 decks
75%synergy
Swan Song
90%inclusion43 decks48 decks
70%synergy
Grand Abolisher
88%inclusion42 decks48 decks
73%synergy
Mental Misstep
85%inclusion41 decks48 decks
79%synergy
Flusterstorm
85%inclusion41 decks48 decks
77%synergy
Demonic Consultation
85%inclusion41 decks48 decks
77%synergy
Orcish Bowmasters
83%inclusion40 decks48 decks
73%synergy
Lotho, Corrupt Shirriff
81%inclusion39 decks48 decks
64%synergy
Game Changers
Demonic Tutor
100%inclusion48 decks48 decks
79%synergy
Vampiric Tutor
100%inclusion48 decks48 decks
83%synergy
Thassa's Oracle
98%inclusion47 decks48 decks
89%synergy
Rhystic Study
98%inclusion47 decks48 decks
67%synergy
Force of Will
98%inclusion47 decks48 decks
86%synergy
Enlightened Tutor
98%inclusion47 decks48 decks
78%synergy
Smothering Tithe
96%inclusion46 decks48 decks
65%synergy
Mana Vault
96%inclusion46 decks48 decks
87%synergy
Ancient Tomb
94%inclusion45 decks48 decks
81%synergy
Chrome Mox
94%inclusion45 decks48 decks
84%synergy
Creatures
Valley Floodcaller
79%inclusion38 decks48 decks
75%synergy
Ranger-Captain of Eos
77%inclusion37 decks48 decks
71%synergy
Wan Shi Tong, Librarian
69%inclusion9 decks13 decks
64%synergy
Displacer Kitten
54%inclusion26 decks48 decks
47%synergy
Hullbreaker Horror
52%inclusion25 decks48 decks
46%synergy
Tataru Taru
44%inclusion11 decks25 decks
36%synergy
Opposition Agent
44%inclusion21 decks48 decks
35%synergy
Lurrus of the Dream-Den
42%inclusion20 decks48 decks
40%synergy
Mockingbird
42%inclusion20 decks48 decks
37%synergy
Voice of Victory
41%inclusion14 decks34 decks
33%synergy
Drannith Magistrate
40%inclusion19 decks48 decks
32%synergy
Archivist of Oghma
35%inclusion17 decks48 decks
29%synergy
Hedron Crab
35%inclusion17 decks48 decks
35%synergy
Auriok Salvagers
35%inclusion17 decks48 decks
35%synergy
Phyrexian Metamorph
25%inclusion12 decks48 decks
17%synergy
Faerie Mastermind
25%inclusion12 decks48 decks
15%synergy
Ledger Shredder
25%inclusion12 decks48 decks
16%synergy
Talion, the Kindly Lord
21%inclusion10 decks48 decks
13%synergy
Leonin Relic-Warder
19%inclusion9 decks48 decks
19%synergy
Psychic Frog
17%inclusion8 decks48 decks
10%synergy
Ghostly Pilferer
17%inclusion8 decks48 decks
9%synergy
Snapcaster Mage
13%inclusion6 decks48 decks
11%synergy
Dauthi Voidwalker
13%inclusion6 decks48 decks
7%synergy
High Fae Trickster
11%inclusion5 decks44 decks
7%synergy
Scrabbling Skullcrab
8.3%inclusion4 decks48 decks
7%synergy
Inquisitive Glimmer
8.3%inclusion4 decks48 decks
1%synergy
Overlord of the Balemurk
8.3%inclusion4 decks48 decks
6%synergy
Pollywog Prodigy
8.3%inclusion4 decks48 decks
4%synergy
Doomwake Giant
8.3%inclusion4 decks48 decks
2%synergy
Entity Tracker
8.3%inclusion4 decks48 decks
2%synergy
The Unagi of Kyoshi Island
7.7%inclusion1 decks13 decks
7%synergy
Gravebreaker Lamia
6.3%inclusion3 decks48 decks
5%synergy
Spellseeker
6.3%inclusion3 decks48 decks
5%synergy
Walking Ballista
6.3%inclusion3 decks48 decks
4%synergy
Demon of Fate's Design
6.3%inclusion3 decks48 decks
1%synergy
Heliod, Sun-Crowned
6.3%inclusion3 decks48 decks
2%synergy
Mesa Enchantress
6.3%inclusion3 decks48 decks
-3%synergy
Fear of Sleep Paralysis
6.3%inclusion3 decks48 decks
1%synergy
Instants
Swords to Plowshares
81%inclusion39 decks48 decks
13%synergy
Pact of Negation
81%inclusion39 decks48 decks
74%synergy
Fierce Guardianship
79%inclusion38 decks48 decks
59%synergy
Mindbreak Trap
77%inclusion37 decks48 decks
70%synergy
Borne Upon a Wind
75%inclusion36 decks48 decks
70%synergy
Cabal Ritual
63%inclusion30 decks48 decks
59%synergy
Mystical Tutor
60%inclusion29 decks48 decks
49%synergy
An Offer You Can't Refuse
56%inclusion27 decks48 decks
29%synergy
Cyclonic Rift
50%inclusion24 decks48 decks
26%synergy
Gifts Ungiven
44%inclusion21 decks48 decks
41%synergy
Mana Drain
44%inclusion21 decks48 decks
26%synergy
Into the Flood Maw
42%inclusion20 decks48 decks
38%synergy
Sink into Stupor
33%inclusion16 decks48 decks
21%synergy
Chain of Vapor
29%inclusion14 decks48 decks
26%synergy
Retraction Helix
25%inclusion12 decks48 decks
24%synergy
Culling the Weak
17%inclusion8 decks48 decks
15%synergy
Ad Nauseam
17%inclusion8 decks48 decks
14%synergy
Darkblast
15%inclusion7 decks48 decks
14%synergy
Banishing Knack
15%inclusion7 decks48 decks
14%synergy
Brain Freeze
13%inclusion6 decks48 decks
12%synergy
Orim's Chant
10%inclusion5 decks48 decks
9%synergy
Path to Exile
10%inclusion5 decks48 decks
-32%synergy
Deadly Rollick
6.3%inclusion3 decks48 decks
-9%synergy
Dovin's Veto
6.3%inclusion3 decks48 decks
-19%synergy
Lim-Dûl's Vault
6.3%inclusion3 decks48 decks
3%synergy
Strix Serenade
6.3%inclusion3 decks48 decks
3%synergy
Counterspell
6.3%inclusion3 decks48 decks
-35%synergy
Dismember
6.3%inclusion3 decks48 decks
0%synergy
Sorceries
Sevinne's Reclamation
81%inclusion39 decks48 decks
72%synergy
Imperial Seal
79%inclusion38 decks48 decks
72%synergy
Reanimate
46%inclusion22 decks48 decks
30%synergy
Toxic Deluge
31%inclusion15 decks48 decks
12%synergy
Lively Dirge
27%inclusion13 decks48 decks
26%synergy
Demonic Counsel
23%inclusion11 decks48 decks
22%synergy
Beseech the Mirror
21%inclusion10 decks48 decks
17%synergy
Windfall
19%inclusion9 decks48 decks
5%synergy
Mnemonic Betrayal
17%inclusion8 decks48 decks
14%synergy
Cabal Therapy
13%inclusion6 decks48 decks
12%synergy
Diabolic Intent
10%inclusion5 decks48 decks
5%synergy
Unmarked Grave
10%inclusion5 decks48 decks
9%synergy
Praetor's Grasp
8.3%inclusion4 decks48 decks
6%synergy
Flash Photography
7.7%inclusion1 decks13 decks
7%synergy
Singularity Rupture
5.3%inclusion1 decks19 decks
3%synergy
Utility Artifacts
The One Ring
71%inclusion34 decks48 decks
58%synergy
Wishclaw Talisman
60%inclusion29 decks48 decks
52%synergy
Mesmeric Orb
8.3%inclusion4 decks48 decks
7%synergy
Cursed Totem
8.3%inclusion4 decks48 decks
6%synergy
Agatha's Soul Cauldron
6.3%inclusion3 decks48 decks
6%synergy
Altar of the Brood
6.3%inclusion3 decks48 decks
5%synergy
Enchantments
Tinybones Joins Up
69%inclusion33 decks48 decks
68%synergy
Necropotence
63%inclusion30 decks48 decks
56%synergy
Blind Obedience
60%inclusion29 decks48 decks
48%synergy
Amphibian Downpour
56%inclusion27 decks48 decks
52%synergy
Mirrormade
50%inclusion24 decks48 decks
40%synergy
Touch the Spirit Realm
44%inclusion21 decks48 decks
41%synergy
Static Prison
44%inclusion21 decks48 decks
43%synergy
Ripples of Undeath
42%inclusion20 decks48 decks
39%synergy
The Meathook Massacre
40%inclusion19 decks48 decks
36%synergy
Copy Artifact
35%inclusion17 decks48 decks
34%synergy
Founding the Third Path
27%inclusion13 decks48 decks
27%synergy
Counterbalance
25%inclusion12 decks48 decks
23%synergy
Steal Enchantment
23%inclusion11 decks48 decks
22%synergy
Copy Enchantment
21%inclusion10 decks48 decks
16%synergy
Monologue Tax
15%inclusion7 decks48 decks
8%synergy
Chthonian Nightmare
15%inclusion7 decks48 decks
14%synergy
Chains of Mephistopheles
15%inclusion7 decks48 decks
14%synergy
Aura of Silence
13%inclusion6 decks48 decks
9%synergy
Seal of Cleansing
10%inclusion5 decks48 decks
9%synergy
Seal of Removal
10%inclusion5 decks48 decks
10%synergy
Sphere of Safety
8.3%inclusion4 decks48 decks
-1%synergy
Trouble in Pairs
8.3%inclusion4 decks48 decks
3%synergy
Dance of Many
6.3%inclusion3 decks48 decks
6%synergy
Leyline of Anticipation
6.3%inclusion3 decks48 decks
2%synergy
Secret Arcade // Dusty Parlor
6.3%inclusion3 decks48 decks
2%synergy
Bloodchief Ascension
6.3%inclusion3 decks48 decks
1%synergy
Planeswalkers
Teferi, Time Raveler
44%inclusion21 decks48 decks
35%synergy
Utility Lands
Otawara, Soaring City
88%inclusion42 decks48 decks
68%synergy
Urza's Saga
35%inclusion17 decks48 decks
24%synergy
Emergence Zone
29%inclusion14 decks48 decks
27%synergy
Minamo, School at Water's Edge
23%inclusion11 decks48 decks
19%synergy
Serra's Sanctum
17%inclusion8 decks48 decks
15%synergy
Cephalid Coliseum
17%inclusion8 decks48 decks
13%synergy
Takenuma, Abandoned Mire
13%inclusion6 decks48 decks
6%synergy
City of Traitors
13%inclusion6 decks48 decks
11%synergy
Hall of Heliod's Generosity
10%inclusion5 decks48 decks
-3%synergy
Urborg, Tomb of Yawgmoth
10%inclusion5 decks48 decks
-3%synergy
Phyrexian Tower
6.3%inclusion3 decks48 decks
3%synergy
Mana Artifacts
Arcane Signet
100%inclusion48 decks48 decks
12%synergy
Sol Ring
100%inclusion48 decks48 decks
10%synergy
Lotus Petal
94%inclusion45 decks48 decks
83%synergy
Fellwar Stone
83%inclusion40 decks48 decks
50%synergy
Mox Diamond
83%inclusion40 decks48 decks
76%synergy
Talisman of Dominance
77%inclusion37 decks48 decks
27%synergy
Mox Opal
75%inclusion36 decks48 decks
66%synergy
Lion's Eye Diamond
75%inclusion36 decks48 decks
73%synergy
Talisman of Progress
48%inclusion23 decks48 decks
4%synergy
Mox Amber
35%inclusion17 decks48 decks
29%synergy
Talisman of Hierarchy
33%inclusion16 decks48 decks
-11%synergy
Grim Monolith
31%inclusion15 decks48 decks
28%synergy
Lands
Command Tower
98%inclusion47 decks48 decks
5%synergy
Godless Shrine
98%inclusion47 decks48 decks
47%synergy
Polluted Delta
98%inclusion47 decks48 decks
60%synergy
Watery Grave
98%inclusion47 decks48 decks
47%synergy
Marsh Flats
96%inclusion46 decks48 decks
60%synergy
Hallowed Fountain
96%inclusion46 decks48 decks
46%synergy
Flooded Strand
96%inclusion46 decks48 decks
58%synergy
Tundra
92%inclusion44 decks48 decks
76%synergy
Underground Sea
92%inclusion44 decks48 decks
76%synergy
Gemstone Caverns
92%inclusion44 decks48 decks
84%synergy
Scrubland
92%inclusion44 decks48 decks
76%synergy
City of Brass
90%inclusion43 decks48 decks
75%synergy
Mana Confluence
88%inclusion42 decks48 decks
74%synergy
Bloodstained Mire
81%inclusion39 decks48 decks
70%synergy
Verdant Catacombs
79%inclusion38 decks48 decks
69%synergy
Scalding Tarn
77%inclusion37 decks48 decks
66%synergy
Misty Rainforest
75%inclusion36 decks48 decks
64%synergy
Windswept Heath
75%inclusion36 decks48 decks
65%synergy
Exotic Orchard
69%inclusion33 decks48 decks
10%synergy
Morphic Pool
69%inclusion33 decks48 decks
35%synergy
Arid Mesa
67%inclusion32 decks48 decks
57%synergy
Undercity Sewers
60%inclusion29 decks48 decks
46%synergy
Sea of Clouds
54%inclusion26 decks48 decks
19%synergy
Vault of Champions
46%inclusion22 decks48 decks
13%synergy
Island
42%inclusion20 decks48 decks
-51%synergy
Starting Town
40%inclusion10 decks25 decks
36%synergy
Swamp
38%inclusion18 decks48 decks
-54%synergy
Sink into Stupor
33%inclusion16 decks48 decks
21%synergy
Meticulous Archive
33%inclusion16 decks48 decks
19%synergy
Cavern of Souls
27%inclusion13 decks48 decks
20%synergy
Plains
27%inclusion13 decks48 decks
-65%synergy
Shadowy Backstreet
19%inclusion9 decks48 decks
6%synergy
Spire of Industry
10%inclusion5 decks48 decks
2%synergy
Raffine's Tower
10%inclusion5 decks48 decks
-30%synergy
Forbidden Orchard
10%inclusion5 decks48 decks
8%synergy
Prismatic Vista
8.3%inclusion4 decks48 decks
4%synergy
Caves of Koilos
8.3%inclusion4 decks48 decks
-27%synergy
Underground River
8.3%inclusion4 decks48 decks
-25%synergy
Talon Gates of Madara
8.3%inclusion4 decks48 decks
7%synergy
Adarkar Wastes
8.3%inclusion4 decks48 decks
-23%synergy
Gemstone Mine
6.3%inclusion3 decks48 decks
6%synergy
Snow-Covered Island
6.3%inclusion3 decks48 decks
3%synergy
Valgavoth's Lair
6.3%inclusion3 decks48 decks
4%synergy
Gloomlake Verge
6.3%inclusion3 decks48 decks
-5%synergy
Snow-Covered Swamp
6.3%inclusion3 decks48 decks
3%synergy
Silent Clearing
6.3%inclusion3 decks48 decks
4%synergy
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