The Master of Keys (Commander) - Expensive Control

The Master of Keys
Rank #302
20decks
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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
Lands
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Exhibition Tidecaller
50%inclusion2 decks4 decks
49%synergy
High Synergy Cards
Necromancy
100%inclusion20 decks20 decks
96%synergy
Dress Down
95%inclusion19 decks20 decks
93%synergy
Silence
100%inclusion20 decks20 decks
90%synergy
Mindbreak Trap
95%inclusion19 decks20 decks
88%synergy
Force of Negation
100%inclusion20 decks20 decks
88%synergy
Tainted Pact
95%inclusion19 decks20 decks
88%synergy
Orcish Bowmasters
95%inclusion19 decks20 decks
85%synergy
Entomb
90%inclusion18 decks20 decks
83%synergy
Pact of Negation
90%inclusion18 decks20 decks
83%synergy
Animate Dead
90%inclusion18 decks20 decks
80%synergy
Top Cards
Dark Ritual
100%inclusion20 decks20 decks
80%synergy
Esper Sentinel
100%inclusion20 decks20 decks
73%synergy
Mystic Remora
100%inclusion20 decks20 decks
80%synergy
Vampiric Tutor
95%inclusion19 decks20 decks
78%synergy
Lotho, Corrupt Shirriff
90%inclusion18 decks20 decks
73%synergy
Smothering Tithe
90%inclusion18 decks20 decks
60%synergy
Mental Misstep
85%inclusion17 decks20 decks
79%synergy
Flusterstorm
85%inclusion17 decks20 decks
77%synergy
Swan Song
85%inclusion17 decks20 decks
65%synergy
Ranger-Captain of Eos
85%inclusion17 decks20 decks
79%synergy
Game Changers
Ancient Tomb
100%inclusion20 decks20 decks
88%synergy
Intuition
100%inclusion20 decks20 decks
98%synergy
Rhystic Study
100%inclusion20 decks20 decks
69%synergy
Mana Vault
100%inclusion20 decks20 decks
91%synergy
Demonic Tutor
100%inclusion20 decks20 decks
80%synergy
Force of Will
100%inclusion20 decks20 decks
88%synergy
Enlightened Tutor
100%inclusion20 decks20 decks
81%synergy
Chrome Mox
100%inclusion20 decks20 decks
91%synergy
Mox Diamond
100%inclusion20 decks20 decks
93%synergy
Thassa's Oracle
95%inclusion19 decks20 decks
86%synergy
Creatures
Grand Abolisher
80%inclusion16 decks20 decks
66%synergy
Abdel Adrian, Gorion's Ward
80%inclusion16 decks20 decks
78%synergy
Opposition Agent
75%inclusion15 decks20 decks
67%synergy
Displacer Kitten
65%inclusion13 decks20 decks
58%synergy
Wan Shi Tong, Librarian
60%inclusion3 decks5 decks
55%synergy
Valley Floodcaller
55%inclusion11 decks20 decks
51%synergy
Hullbreaker Horror
55%inclusion11 decks20 decks
49%synergy
Drannith Magistrate
50%inclusion10 decks20 decks
42%synergy
Voice of Victory
50%inclusion4 decks8 decks
42%synergy
Auriok Salvagers
45%inclusion9 decks20 decks
45%synergy
Phyrexian Metamorph
40%inclusion8 decks20 decks
32%synergy
Lurrus of the Dream-Den
40%inclusion8 decks20 decks
39%synergy
Ledger Shredder
40%inclusion8 decks20 decks
31%synergy
Gran-Gran
40%inclusion2 decks5 decks
40%synergy
Archivist of Oghma
35%inclusion7 decks20 decks
29%synergy
Mockingbird
35%inclusion7 decks20 decks
31%synergy
Tataru Taru
29%inclusion2 decks7 decks
20%synergy
Faerie Mastermind
20%inclusion4 decks20 decks
10%synergy
Volatile Stormdrake
15%inclusion3 decks20 decks
14%synergy
Hedron Crab
15%inclusion3 decks20 decks
14%synergy
Leonin Relic-Warder
15%inclusion3 decks20 decks
15%synergy
Talion, the Kindly Lord
15%inclusion3 decks20 decks
8%synergy
Psychic Frog
15%inclusion3 decks20 decks
8%synergy
Ghostly Pilferer
15%inclusion3 decks20 decks
8%synergy
Emet-Selch of the Third Seat
14%inclusion1 decks7 decks
5%synergy
Hoarding Broodlord
10%inclusion2 decks20 decks
8%synergy
Subtlety
10%inclusion2 decks20 decks
10%synergy
Cephalid Illusionist
10%inclusion2 decks20 decks
10%synergy
Gilded Drake
10%inclusion2 decks20 decks
8%synergy
Pollywog Prodigy
10%inclusion2 decks20 decks
6%synergy
Nomads en-Kor
10%inclusion2 decks20 decks
10%synergy
Nezahal, Primal Tide
10%inclusion2 decks20 decks
6%synergy
Clever Impersonator
10%inclusion2 decks20 decks
8%synergy
Emry, Lurker of the Loch
10%inclusion2 decks20 decks
5%synergy
High Fae Trickster
7.7%inclusion1 decks13 decks
3%synergy
Neerdiv, Devious Diver
7.7%inclusion1 decks13 decks
8%synergy
Vohar, Vodalian Desecrator
5.0%inclusion1 decks20 decks
1%synergy
Spellseeker
5.0%inclusion1 decks20 decks
4%synergy
Doom Whisperer
5.0%inclusion1 decks20 decks
4%synergy
Walking Ballista
5.0%inclusion1 decks20 decks
3%synergy
Malevolent Hermit
5.0%inclusion1 decks20 decks
4%synergy
Hydroelectric Specimen
5.0%inclusion1 decks20 decks
2%synergy
Heliod, Sun-Crowned
5.0%inclusion1 decks20 decks
1%synergy
Overlord of the Balemurk
5.0%inclusion1 decks20 decks
3%synergy
Drana and Linvala
5.0%inclusion1 decks20 decks
3%synergy
Astral Dragon
5.0%inclusion1 decks20 decks
3%synergy
Entity Tracker
5.0%inclusion1 decks20 decks
-1%synergy
Recruiter of the Guard
5.0%inclusion1 decks20 decks
4%synergy
Academy Rector
5.0%inclusion1 decks20 decks
4%synergy
Phantatog
5.0%inclusion1 decks20 decks
5%synergy
Instants
Fierce Guardianship
85%inclusion17 decks20 decks
65%synergy
Mystical Tutor
85%inclusion17 decks20 decks
74%synergy
Demonic Consultation
80%inclusion16 decks20 decks
72%synergy
Borne Upon a Wind
80%inclusion16 decks20 decks
75%synergy
Cabal Ritual
65%inclusion13 decks20 decks
62%synergy
Swords to Plowshares
65%inclusion13 decks20 decks
-3%synergy
An Offer You Can't Refuse
60%inclusion12 decks20 decks
32%synergy
Cyclonic Rift
60%inclusion12 decks20 decks
37%synergy
Chain of Vapor
40%inclusion8 decks20 decks
37%synergy
Sink into Stupor
40%inclusion8 decks20 decks
27%synergy
Into the Flood Maw
35%inclusion7 decks20 decks
31%synergy
Brain Freeze
30%inclusion6 decks20 decks
29%synergy
Mana Drain
30%inclusion6 decks20 decks
13%synergy
Retraction Helix
20%inclusion4 decks20 decks
19%synergy
Darkblast
20%inclusion4 decks20 decks
20%synergy
Muddle the Mixture
15%inclusion3 decks20 decks
11%synergy
Orim's Chant
15%inclusion3 decks20 decks
13%synergy
Gifts Ungiven
15%inclusion3 decks20 decks
12%synergy
Culling the Weak
15%inclusion3 decks20 decks
13%synergy
Dispel
15%inclusion3 decks20 decks
12%synergy
Commandeer
15%inclusion3 decks20 decks
14%synergy
Sacrifice
10%inclusion2 decks20 decks
9%synergy
Trickbind
10%inclusion2 decks20 decks
9%synergy
Flare of Denial
10%inclusion2 decks20 decks
8%synergy
Strix Serenade
10%inclusion2 decks20 decks
7%synergy
Misdirection
10%inclusion2 decks20 decks
8%synergy
Path to Exile
10%inclusion2 decks20 decks
-32%synergy
Snapback
10%inclusion2 decks20 decks
10%synergy
Saw in Half
10%inclusion2 decks20 decks
8%synergy
Deadly Rollick
5.0%inclusion1 decks20 decks
-11%synergy
Frantic Search
5.0%inclusion1 decks20 decks
-14%synergy
Dovin's Veto
5.0%inclusion1 decks20 decks
-21%synergy
Spell Snare
5.0%inclusion1 decks20 decks
5%synergy
Lim-Dûl's Vault
5.0%inclusion1 decks20 decks
2%synergy
Banishing Knack
5.0%inclusion1 decks20 decks
5%synergy
Alchemist's Retrieval
5.0%inclusion1 decks20 decks
5%synergy
Unwanted Remake
5.0%inclusion1 decks20 decks
5%synergy
Ad Nauseam
5.0%inclusion1 decks20 decks
3%synergy
Wipe Away
5.0%inclusion1 decks20 decks
5%synergy
Dramatic Reversal
5.0%inclusion1 decks20 decks
3%synergy
March of Swirling Mist
5.0%inclusion1 decks20 decks
4%synergy
Miscast
5.0%inclusion1 decks20 decks
4%synergy
Sudden Substitution
5.0%inclusion1 decks20 decks
5%synergy
Dismember
5.0%inclusion1 decks20 decks
-2%synergy
Sorceries
Imperial Seal
80%inclusion16 decks20 decks
73%synergy
Sevinne's Reclamation
80%inclusion16 decks20 decks
71%synergy
Windfall
40%inclusion8 decks20 decks
27%synergy
Reanimate
40%inclusion8 decks20 decks
24%synergy
Flash Photography
40%inclusion2 decks5 decks
39%synergy
Mnemonic Betrayal
30%inclusion6 decks20 decks
27%synergy
Lively Dirge
25%inclusion5 decks20 decks
24%synergy
Unmarked Grave
25%inclusion5 decks20 decks
24%synergy
Yawgmoth's Will
25%inclusion5 decks20 decks
24%synergy
Beseech the Mirror
25%inclusion5 decks20 decks
21%synergy
Toxic Deluge
20%inclusion4 decks20 decks
0%synergy
Diabolic Intent
10%inclusion2 decks20 decks
5%synergy
Timetwister
10%inclusion2 decks20 decks
9%synergy
Cabal Therapy
5.0%inclusion1 decks20 decks
5%synergy
Split Up
5.0%inclusion1 decks20 decks
4%synergy
Dread Return
5.0%inclusion1 decks20 decks
2%synergy
Replenish
5.0%inclusion1 decks20 decks
3%synergy
Praetor's Grasp
5.0%inclusion1 decks20 decks
2%synergy
Scheming Symmetry
5.0%inclusion1 decks20 decks
4%synergy
Demonic Counsel
5.0%inclusion1 decks20 decks
4%synergy
Buried Alive
5.0%inclusion1 decks20 decks
1%synergy
Transmute Artifact
5.0%inclusion1 decks20 decks
4%synergy
Utility Artifacts
The One Ring
80%inclusion16 decks20 decks
67%synergy
Wishclaw Talisman
60%inclusion12 decks20 decks
52%synergy
Vexing Bauble
20%inclusion4 decks20 decks
18%synergy
Agatha's Soul Cauldron
15%inclusion3 decks20 decks
15%synergy
Cursed Totem
10%inclusion2 decks20 decks
8%synergy
Mesmeric Orb
5.0%inclusion1 decks20 decks
4%synergy
Sensei's Divining Top
5.0%inclusion1 decks20 decks
-4%synergy
Altar of the Brood
5.0%inclusion1 decks20 decks
4%synergy
Isochron Scepter
5.0%inclusion1 decks20 decks
3%synergy
Imposter Mech
5.0%inclusion1 decks20 decks
3%synergy
Enchantments
Dance of the Dead
80%inclusion16 decks20 decks
78%synergy
Blind Obedience
70%inclusion14 decks20 decks
58%synergy
Tinybones Joins Up
60%inclusion12 decks20 decks
59%synergy
Necropotence
60%inclusion12 decks20 decks
54%synergy
Amphibian Downpour
60%inclusion12 decks20 decks
55%synergy
The Meathook Massacre
50%inclusion10 decks20 decks
47%synergy
Static Prison
40%inclusion8 decks20 decks
40%synergy
Ripples of Undeath
35%inclusion7 decks20 decks
32%synergy
Mirrormade
35%inclusion7 decks20 decks
25%synergy
Counterbalance
30%inclusion6 decks20 decks
28%synergy
Copy Artifact
30%inclusion6 decks20 decks
29%synergy
Touch the Spirit Realm
25%inclusion5 decks20 decks
23%synergy
Steal Enchantment
25%inclusion5 decks20 decks
24%synergy
Chains of Mephistopheles
25%inclusion5 decks20 decks
25%synergy
Founding the Third Path
20%inclusion4 decks20 decks
20%synergy
Copy Enchantment
20%inclusion4 decks20 decks
15%synergy
Seal of Cleansing
15%inclusion3 decks20 decks
14%synergy
Seal of Removal
15%inclusion3 decks20 decks
14%synergy
Grasp of Fate
10%inclusion2 decks20 decks
4%synergy
Dance of Many
10%inclusion2 decks20 decks
10%synergy
Charitable Levy
10%inclusion2 decks20 decks
10%synergy
Leyline of Anticipation
10%inclusion2 decks20 decks
6%synergy
Trouble in Pairs
10%inclusion2 decks20 decks
5%synergy
Curse of Silence
5.0%inclusion1 decks20 decks
5%synergy
Struggle for Project Purity
5.0%inclusion1 decks20 decks
4%synergy
Attunement
5.0%inclusion1 decks20 decks
5%synergy
Seal of Doom
5.0%inclusion1 decks20 decks
5%synergy
Omniscience
5.0%inclusion1 decks20 decks
1%synergy
Kismet
5.0%inclusion1 decks20 decks
5%synergy
Power Artifact
5.0%inclusion1 decks20 decks
5%synergy
Monologue Tax
5.0%inclusion1 decks20 decks
-2%synergy
Chthonian Nightmare
5.0%inclusion1 decks20 decks
4%synergy
Aura of Silence
5.0%inclusion1 decks20 decks
2%synergy
Leyline of the Void
5.0%inclusion1 decks20 decks
4%synergy
Planeswalkers
Teferi, Time Raveler
55%inclusion11 decks20 decks
47%synergy
Utility Lands
Otawara, Soaring City
95%inclusion19 decks20 decks
76%synergy
Urza's Saga
55%inclusion11 decks20 decks
43%synergy
Emergence Zone
40%inclusion8 decks20 decks
38%synergy
Serra's Sanctum
30%inclusion6 decks20 decks
28%synergy
City of Traitors
30%inclusion6 decks20 decks
29%synergy
Minamo, School at Water's Edge
20%inclusion4 decks20 decks
16%synergy
Cephalid Coliseum
20%inclusion4 decks20 decks
16%synergy
Hall of Heliod's Generosity
10%inclusion2 decks20 decks
-3%synergy
Bazaar of Baghdad
10%inclusion2 decks20 decks
10%synergy
Takenuma, Abandoned Mire
10%inclusion2 decks20 decks
4%synergy
Urborg, Tomb of Yawgmoth
10%inclusion2 decks20 decks
-3%synergy
Wasteland
5.0%inclusion1 decks20 decks
4%synergy
Phyrexian Tower
5.0%inclusion1 decks20 decks
1%synergy
Command Beacon
5.0%inclusion1 decks20 decks
2%synergy
Cabal Pit
5.0%inclusion1 decks20 decks
5%synergy
Strip Mine
5.0%inclusion1 decks20 decks
3%synergy
Mana Artifacts
Arcane Signet
100%inclusion20 decks20 decks
12%synergy
Lotus Petal
100%inclusion20 decks20 decks
90%synergy
Sol Ring
100%inclusion20 decks20 decks
10%synergy
Mox Opal
85%inclusion17 decks20 decks
77%synergy
Talisman of Dominance
80%inclusion16 decks20 decks
30%synergy
Fellwar Stone
80%inclusion16 decks20 decks
47%synergy
Lion's Eye Diamond
80%inclusion16 decks20 decks
78%synergy
Talisman of Progress
60%inclusion12 decks20 decks
16%synergy
Grim Monolith
45%inclusion9 decks20 decks
42%synergy
Talisman of Hierarchy
40%inclusion8 decks20 decks
-5%synergy
Mox Amber
35%inclusion7 decks20 decks
29%synergy
Relic of Legends
10%inclusion2 decks20 decks
3%synergy
Basalt Monolith
5.0%inclusion1 decks20 decks
3%synergy
Lands
Tundra
100%inclusion20 decks20 decks
84%synergy
Command Tower
100%inclusion20 decks20 decks
7%synergy
Underground Sea
100%inclusion20 decks20 decks
84%synergy
Godless Shrine
100%inclusion20 decks20 decks
48%synergy
Scrubland
100%inclusion20 decks20 decks
84%synergy
Marsh Flats
100%inclusion20 decks20 decks
64%synergy
Polluted Delta
100%inclusion20 decks20 decks
62%synergy
Flooded Strand
100%inclusion20 decks20 decks
61%synergy
Watery Grave
100%inclusion20 decks20 decks
49%synergy
Misty Rainforest
95%inclusion19 decks20 decks
84%synergy
Gemstone Caverns
95%inclusion19 decks20 decks
88%synergy
Hallowed Fountain
95%inclusion19 decks20 decks
44%synergy
City of Brass
95%inclusion19 decks20 decks
80%synergy
Mana Confluence
90%inclusion18 decks20 decks
76%synergy
Verdant Catacombs
85%inclusion17 decks20 decks
75%synergy
Scalding Tarn
85%inclusion17 decks20 decks
74%synergy
Bloodstained Mire
85%inclusion17 decks20 decks
74%synergy
Exotic Orchard
75%inclusion15 decks20 decks
16%synergy
Windswept Heath
75%inclusion15 decks20 decks
66%synergy
Undercity Sewers
60%inclusion12 decks20 decks
45%synergy
Sea of Clouds
60%inclusion12 decks20 decks
25%synergy
Morphic Pool
60%inclusion12 decks20 decks
26%synergy
Arid Mesa
50%inclusion10 decks20 decks
41%synergy
Starting Town
43%inclusion3 decks7 decks
39%synergy
Island
40%inclusion8 decks20 decks
-53%synergy
Sink into Stupor
40%inclusion8 decks20 decks
27%synergy
Vault of Champions
40%inclusion8 decks20 decks
8%synergy
Swamp
20%inclusion4 decks20 decks
-72%synergy
Talon Gates of Madara
20%inclusion4 decks20 decks
19%synergy
Shadowy Backstreet
15%inclusion3 decks20 decks
2%synergy
Spire of Industry
15%inclusion3 decks20 decks
7%synergy
Cavern of Souls
15%inclusion3 decks20 decks
8%synergy
Meticulous Archive
15%inclusion3 decks20 decks
1%synergy
Tarnished Citadel
10%inclusion2 decks20 decks
9%synergy
Plains
10%inclusion2 decks20 decks
-82%synergy
Forbidden Orchard
10%inclusion2 decks20 decks
8%synergy
Prismatic Vista
5.0%inclusion1 decks20 decks
1%synergy
Prairie Stream
5.0%inclusion1 decks20 decks
-36%synergy
Hydroelectric Specimen
5.0%inclusion1 decks20 decks
2%synergy
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