The Master of Keys (Commander) - cEDH Mill

The Master of Keys
Rank #306
46decks
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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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Utility Lands
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Dream Beavers
33%inclusion1 decks3 decks
33%synergy
Voracious Tome-Skimmer
14%inclusion1 decks7 decks
13%synergy
Mornsong Aria
14%inclusion1 decks7 decks
13%synergy
High Synergy Cards
Dance of the Dead
100%inclusion46 decks46 decks
98%synergy
Necromancy
98%inclusion45 decks46 decks
93%synergy
Animate Dead
100%inclusion46 decks46 decks
90%synergy
Dress Down
91%inclusion42 decks46 decks
89%synergy
Entomb
96%inclusion44 decks46 decks
89%synergy
Silence
98%inclusion45 decks46 decks
88%synergy
Abdel Adrian, Gorion's Ward
89%inclusion41 decks46 decks
87%synergy
Tainted Pact
93%inclusion43 decks46 decks
86%synergy
Dark Ritual
100%inclusion46 decks46 decks
81%synergy
Mental Misstep
87%inclusion40 decks46 decks
80%synergy
Top Cards
Esper Sentinel
96%inclusion44 decks46 decks
68%synergy
Mystic Remora
96%inclusion44 decks46 decks
75%synergy
Force of Negation
91%inclusion42 decks46 decks
79%synergy
Swan Song
89%inclusion41 decks46 decks
69%synergy
Grand Abolisher
89%inclusion41 decks46 decks
75%synergy
Flusterstorm
87%inclusion40 decks46 decks
79%synergy
Demonic Consultation
87%inclusion40 decks46 decks
79%synergy
Sevinne's Reclamation
85%inclusion39 decks46 decks
76%synergy
Orcish Bowmasters
85%inclusion39 decks46 decks
74%synergy
Lotho, Corrupt Shirriff
83%inclusion38 decks46 decks
66%synergy
Game Changers
Demonic Tutor
100%inclusion46 decks46 decks
79%synergy
Vampiric Tutor
100%inclusion46 decks46 decks
83%synergy
Thassa's Oracle
98%inclusion45 decks46 decks
88%synergy
Rhystic Study
98%inclusion45 decks46 decks
66%synergy
Mana Vault
98%inclusion45 decks46 decks
89%synergy
Force of Will
98%inclusion45 decks46 decks
85%synergy
Enlightened Tutor
98%inclusion45 decks46 decks
78%synergy
Smothering Tithe
96%inclusion44 decks46 decks
64%synergy
Chrome Mox
96%inclusion44 decks46 decks
86%synergy
Ancient Tomb
93%inclusion43 decks46 decks
81%synergy
Creatures
Valley Floodcaller
80%inclusion37 decks46 decks
76%synergy
Ranger-Captain of Eos
78%inclusion36 decks46 decks
72%synergy
Wan Shi Tong, Librarian
73%inclusion8 decks11 decks
68%synergy
Displacer Kitten
54%inclusion25 decks46 decks
47%synergy
Hullbreaker Horror
52%inclusion24 decks46 decks
46%synergy
Opposition Agent
48%inclusion22 decks46 decks
39%synergy
Voice of Victory
47%inclusion15 decks32 decks
38%synergy
Lurrus of the Dream-Den
43%inclusion20 decks46 decks
42%synergy
Tataru Taru
43%inclusion10 decks23 decks
35%synergy
Drannith Magistrate
41%inclusion19 decks46 decks
33%synergy
Mockingbird
41%inclusion19 decks46 decks
37%synergy
Hedron Crab
39%inclusion18 decks46 decks
39%synergy
Archivist of Oghma
37%inclusion17 decks46 decks
30%synergy
Auriok Salvagers
35%inclusion16 decks46 decks
34%synergy
Phyrexian Metamorph
26%inclusion12 decks46 decks
18%synergy
Ledger Shredder
26%inclusion12 decks46 decks
17%synergy
Faerie Mastermind
24%inclusion11 decks46 decks
14%synergy
Talion, the Kindly Lord
22%inclusion10 decks46 decks
14%synergy
Leonin Relic-Warder
20%inclusion9 decks46 decks
19%synergy
Psychic Frog
17%inclusion8 decks46 decks
10%synergy
Ghostly Pilferer
17%inclusion8 decks46 decks
10%synergy
Snapcaster Mage
15%inclusion7 decks46 decks
13%synergy
Dauthi Voidwalker
13%inclusion6 decks46 decks
7%synergy
High Fae Trickster
10%inclusion4 decks42 decks
5%synergy
Overlord of the Balemurk
8.7%inclusion4 decks46 decks
7%synergy
Pollywog Prodigy
8.7%inclusion4 decks46 decks
5%synergy
Scrabbling Skullcrab
6.5%inclusion3 decks46 decks
6%synergy
Spellseeker
6.5%inclusion3 decks46 decks
5%synergy
Inquisitive Glimmer
6.5%inclusion3 decks46 decks
-1%synergy
Walking Ballista
6.5%inclusion3 decks46 decks
4%synergy
Heliod, Sun-Crowned
6.5%inclusion3 decks46 decks
3%synergy
Mesa Enchantress
6.5%inclusion3 decks46 decks
-2%synergy
Doomwake Giant
6.5%inclusion3 decks46 decks
1%synergy
Entity Tracker
6.5%inclusion3 decks46 decks
0%synergy
Symbiote Spider-Man
6.3%inclusion1 decks16 decks
6%synergy
Instants
Swords to Plowshares
83%inclusion38 decks46 decks
14%synergy
Pact of Negation
83%inclusion38 decks46 decks
75%synergy
Intuition
80%inclusion37 decks46 decks
79%synergy
Fierce Guardianship
80%inclusion37 decks46 decks
60%synergy
Mindbreak Trap
78%inclusion36 decks46 decks
71%synergy
Borne Upon a Wind
76%inclusion35 decks46 decks
71%synergy
Cabal Ritual
63%inclusion29 decks46 decks
60%synergy
Mystical Tutor
61%inclusion28 decks46 decks
50%synergy
An Offer You Can't Refuse
57%inclusion26 decks46 decks
29%synergy
Cyclonic Rift
50%inclusion23 decks46 decks
26%synergy
Gifts Ungiven
46%inclusion21 decks46 decks
43%synergy
Mana Drain
46%inclusion21 decks46 decks
28%synergy
Into the Flood Maw
39%inclusion18 decks46 decks
35%synergy
Sink into Stupor
30%inclusion14 decks46 decks
18%synergy
Chain of Vapor
28%inclusion13 decks46 decks
25%synergy
Retraction Helix
22%inclusion10 decks46 decks
21%synergy
Culling the Weak
17%inclusion8 decks46 decks
16%synergy
Darkblast
17%inclusion8 decks46 decks
17%synergy
Ad Nauseam
17%inclusion8 decks46 decks
15%synergy
Brain Freeze
15%inclusion7 decks46 decks
15%synergy
Banishing Knack
13%inclusion6 decks46 decks
13%synergy
Path to Exile
11%inclusion5 decks46 decks
-31%synergy
Orim's Chant
8.7%inclusion4 decks46 decks
7%synergy
Deadly Rollick
6.5%inclusion3 decks46 decks
-8%synergy
Strix Serenade
6.5%inclusion3 decks46 decks
3%synergy
Counterspell
6.5%inclusion3 decks46 decks
-35%synergy
Dismember
6.5%inclusion3 decks46 decks
1%synergy
Sorceries
Imperial Seal
80%inclusion37 decks46 decks
73%synergy
Reanimate
50%inclusion23 decks46 decks
34%synergy
Toxic Deluge
33%inclusion15 decks46 decks
13%synergy
Lively Dirge
28%inclusion13 decks46 decks
27%synergy
Demonic Counsel
22%inclusion10 decks46 decks
21%synergy
Windfall
20%inclusion9 decks46 decks
6%synergy
Beseech the Mirror
20%inclusion9 decks46 decks
16%synergy
Cabal Therapy
15%inclusion7 decks46 decks
15%synergy
Mnemonic Betrayal
15%inclusion7 decks46 decks
12%synergy
Diabolic Intent
11%inclusion5 decks46 decks
6%synergy
Unmarked Grave
11%inclusion5 decks46 decks
9%synergy
Flash Photography
9.1%inclusion1 decks11 decks
8%synergy
Praetor's Grasp
6.5%inclusion3 decks46 decks
4%synergy
Singularity Rupture
5.9%inclusion1 decks17 decks
4%synergy
Utility Artifacts
The One Ring
74%inclusion34 decks46 decks
61%synergy
Wishclaw Talisman
61%inclusion28 decks46 decks
53%synergy
Cursed Totem
8.7%inclusion4 decks46 decks
6%synergy
Mesmeric Orb
6.5%inclusion3 decks46 decks
5%synergy
Agatha's Soul Cauldron
6.5%inclusion3 decks46 decks
6%synergy
Altar of the Brood
6.5%inclusion3 decks46 decks
5%synergy
Enchantments
Tinybones Joins Up
72%inclusion33 decks46 decks
71%synergy
Blind Obedience
61%inclusion28 decks46 decks
49%synergy
Necropotence
61%inclusion28 decks46 decks
54%synergy
Amphibian Downpour
57%inclusion26 decks46 decks
52%synergy
Mirrormade
48%inclusion22 decks46 decks
38%synergy
Static Prison
48%inclusion22 decks46 decks
47%synergy
Touch the Spirit Realm
43%inclusion20 decks46 decks
41%synergy
The Meathook Massacre
41%inclusion19 decks46 decks
38%synergy
Ripples of Undeath
41%inclusion19 decks46 decks
39%synergy
Copy Artifact
35%inclusion16 decks46 decks
34%synergy
Founding the Third Path
28%inclusion13 decks46 decks
28%synergy
Counterbalance
24%inclusion11 decks46 decks
22%synergy
Steal Enchantment
24%inclusion11 decks46 decks
23%synergy
Copy Enchantment
20%inclusion9 decks46 decks
15%synergy
Chthonian Nightmare
15%inclusion7 decks46 decks
15%synergy
Chains of Mephistopheles
15%inclusion7 decks46 decks
15%synergy
Monologue Tax
13%inclusion6 decks46 decks
7%synergy
Aura of Silence
13%inclusion6 decks46 decks
10%synergy
Seal of Cleansing
8.7%inclusion4 decks46 decks
7%synergy
Seal of Removal
8.7%inclusion4 decks46 decks
8%synergy
Trouble in Pairs
8.7%inclusion4 decks46 decks
3%synergy
Dance of Many
6.5%inclusion3 decks46 decks
6%synergy
Sphere of Safety
6.5%inclusion3 decks46 decks
-3%synergy
Bloodchief Ascension
6.5%inclusion3 decks46 decks
1%synergy
Planeswalkers
Teferi, Time Raveler
46%inclusion21 decks46 decks
37%synergy
Tezzeret, Cruel Captain
5.0%inclusion1 decks20 decks
3%synergy
Utility Lands
Otawara, Soaring City
89%inclusion41 decks46 decks
70%synergy
Urza's Saga
35%inclusion16 decks46 decks
23%synergy
Emergence Zone
30%inclusion14 decks46 decks
28%synergy
Minamo, School at Water's Edge
24%inclusion11 decks46 decks
20%synergy
Serra's Sanctum
15%inclusion7 decks46 decks
13%synergy
Cephalid Coliseum
15%inclusion7 decks46 decks
12%synergy
Takenuma, Abandoned Mire
13%inclusion6 decks46 decks
7%synergy
Urborg, Tomb of Yawgmoth
11%inclusion5 decks46 decks
-2%synergy
City of Traitors
11%inclusion5 decks46 decks
10%synergy
Hall of Heliod's Generosity
8.7%inclusion4 decks46 decks
-4%synergy
Phyrexian Tower
6.5%inclusion3 decks46 decks
3%synergy
Mana Artifacts
Arcane Signet
100%inclusion46 decks46 decks
12%synergy
Sol Ring
100%inclusion46 decks46 decks
10%synergy
Lotus Petal
96%inclusion44 decks46 decks
85%synergy
Fellwar Stone
85%inclusion39 decks46 decks
51%synergy
Mox Diamond
85%inclusion39 decks46 decks
78%synergy
Talisman of Dominance
78%inclusion36 decks46 decks
29%synergy
Mox Opal
76%inclusion35 decks46 decks
67%synergy
Lion's Eye Diamond
76%inclusion35 decks46 decks
74%synergy
Talisman of Progress
48%inclusion22 decks46 decks
4%synergy
Mox Amber
35%inclusion16 decks46 decks
29%synergy
Talisman of Hierarchy
33%inclusion15 decks46 decks
-11%synergy
Grim Monolith
30%inclusion14 decks46 decks
27%synergy
Lands
Command Tower
98%inclusion45 decks46 decks
5%synergy
Godless Shrine
98%inclusion45 decks46 decks
47%synergy
Polluted Delta
98%inclusion45 decks46 decks
60%synergy
Hallowed Fountain
98%inclusion45 decks46 decks
48%synergy
Watery Grave
98%inclusion45 decks46 decks
47%synergy
Marsh Flats
96%inclusion44 decks46 decks
60%synergy
Flooded Strand
96%inclusion44 decks46 decks
57%synergy
Gemstone Caverns
93%inclusion43 decks46 decks
86%synergy
Tundra
91%inclusion42 decks46 decks
75%synergy
Underground Sea
91%inclusion42 decks46 decks
76%synergy
Scrubland
91%inclusion42 decks46 decks
75%synergy
City of Brass
91%inclusion42 decks46 decks
76%synergy
Mana Confluence
87%inclusion40 decks46 decks
73%synergy
Bloodstained Mire
80%inclusion37 decks46 decks
69%synergy
Verdant Catacombs
78%inclusion36 decks46 decks
68%synergy
Windswept Heath
76%inclusion35 decks46 decks
66%synergy
Scalding Tarn
76%inclusion35 decks46 decks
65%synergy
Misty Rainforest
74%inclusion34 decks46 decks
63%synergy
Exotic Orchard
70%inclusion32 decks46 decks
11%synergy
Morphic Pool
67%inclusion31 decks46 decks
33%synergy
Arid Mesa
65%inclusion30 decks46 decks
55%synergy
Undercity Sewers
61%inclusion28 decks46 decks
46%synergy
Sea of Clouds
54%inclusion25 decks46 decks
19%synergy
Vault of Champions
46%inclusion21 decks46 decks
13%synergy
Island
43%inclusion20 decks46 decks
-49%synergy
Swamp
39%inclusion18 decks46 decks
-52%synergy
Starting Town
39%inclusion9 decks23 decks
35%synergy
Meticulous Archive
35%inclusion16 decks46 decks
21%synergy
Sink into Stupor
30%inclusion14 decks46 decks
18%synergy
Cavern of Souls
28%inclusion13 decks46 decks
22%synergy
Plains
28%inclusion13 decks46 decks
-63%synergy
Shadowy Backstreet
20%inclusion9 decks46 decks
7%synergy
Spire of Industry
11%inclusion5 decks46 decks
3%synergy
Forbidden Orchard
11%inclusion5 decks46 decks
8%synergy
Caves of Koilos
8.7%inclusion4 decks46 decks
-27%synergy
Raffine's Tower
8.7%inclusion4 decks46 decks
-32%synergy
Underground River
8.7%inclusion4 decks46 decks
-25%synergy
Talon Gates of Madara
8.7%inclusion4 decks46 decks
7%synergy
Adarkar Wastes
8.7%inclusion4 decks46 decks
-23%synergy
Prismatic Vista
6.5%inclusion3 decks46 decks
3%synergy
Gemstone Mine
6.5%inclusion3 decks46 decks
6%synergy
Valgavoth's Lair
6.5%inclusion3 decks46 decks
4%synergy
Gloomlake Verge
6.5%inclusion3 decks46 decks
-4%synergy
Bleachbone Verge
5.7%inclusion2 decks35 decks
-3%synergy
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