The Master of Keys (Commander) - Expensive Control

The Master of Keys
Rank #301
19decks
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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
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Exhibition Tidecaller
50%inclusion2 decks4 decks
49%synergy
High Synergy Cards
Necromancy
89%inclusion17 decks19 decks
85%synergy
Force of Negation
95%inclusion18 decks19 decks
83%synergy
Entomb
89%inclusion17 decks19 decks
83%synergy
Dress Down
84%inclusion16 decks19 decks
82%synergy
Silence
89%inclusion17 decks19 decks
79%synergy
Mindbreak Trap
84%inclusion16 decks19 decks
78%synergy
Tainted Pact
84%inclusion16 decks19 decks
77%synergy
Pact of Negation
84%inclusion16 decks19 decks
77%synergy
Flusterstorm
84%inclusion16 decks19 decks
76%synergy
Thassa's Oracle
84%inclusion16 decks19 decks
75%synergy
Top Cards
Mystic Remora
95%inclusion18 decks19 decks
74%synergy
Dark Ritual
89%inclusion17 decks19 decks
69%synergy
Esper Sentinel
89%inclusion17 decks19 decks
62%synergy
Lotho, Corrupt Shirriff
84%inclusion16 decks19 decks
67%synergy
Orcish Bowmasters
84%inclusion16 decks19 decks
74%synergy
Imperial Seal
79%inclusion15 decks19 decks
72%synergy
Mental Misstep
79%inclusion15 decks19 decks
72%synergy
Swan Song
79%inclusion15 decks19 decks
59%synergy
Animate Dead
79%inclusion15 decks19 decks
69%synergy
Mystical Tutor
79%inclusion15 decks19 decks
68%synergy
Game Changers
Ancient Tomb
95%inclusion18 decks19 decks
82%synergy
Intuition
95%inclusion18 decks19 decks
93%synergy
Rhystic Study
95%inclusion18 decks19 decks
64%synergy
Demonic Tutor
95%inclusion18 decks19 decks
74%synergy
Force of Will
95%inclusion18 decks19 decks
82%synergy
Enlightened Tutor
95%inclusion18 decks19 decks
76%synergy
Smothering Tithe
89%inclusion17 decks19 decks
59%synergy
Mana Vault
89%inclusion17 decks19 decks
81%synergy
Chrome Mox
89%inclusion17 decks19 decks
80%synergy
Vampiric Tutor
89%inclusion17 decks19 decks
73%synergy
Creatures
Grand Abolisher
74%inclusion14 decks19 decks
59%synergy
Ranger-Captain of Eos
74%inclusion14 decks19 decks
68%synergy
Abdel Adrian, Gorion's Ward
68%inclusion13 decks19 decks
67%synergy
Opposition Agent
63%inclusion12 decks19 decks
55%synergy
Wan Shi Tong, Librarian
60%inclusion3 decks5 decks
55%synergy
Displacer Kitten
58%inclusion11 decks19 decks
51%synergy
Hullbreaker Horror
53%inclusion10 decks19 decks
47%synergy
Valley Floodcaller
47%inclusion9 decks19 decks
44%synergy
Phyrexian Metamorph
42%inclusion8 decks19 decks
34%synergy
Auriok Salvagers
42%inclusion8 decks19 decks
42%synergy
Gran-Gran
40%inclusion2 decks5 decks
40%synergy
Voice of Victory
38%inclusion3 decks8 decks
29%synergy
Archivist of Oghma
37%inclusion7 decks19 decks
30%synergy
Drannith Magistrate
37%inclusion7 decks19 decks
29%synergy
Lurrus of the Dream-Den
32%inclusion6 decks19 decks
30%synergy
Faerie Mastermind
32%inclusion6 decks19 decks
22%synergy
Mockingbird
32%inclusion6 decks19 decks
27%synergy
Ledger Shredder
32%inclusion6 decks19 decks
23%synergy
Tataru Taru
29%inclusion2 decks7 decks
20%synergy
Talion, the Kindly Lord
21%inclusion4 decks19 decks
14%synergy
Overlord of the Balemurk
16%inclusion3 decks19 decks
14%synergy
Hedron Crab
16%inclusion3 decks19 decks
15%synergy
Leonin Relic-Warder
16%inclusion3 decks19 decks
16%synergy
Psychic Frog
16%inclusion3 decks19 decks
9%synergy
Academy Rector
16%inclusion3 decks19 decks
15%synergy
Ghostly Pilferer
16%inclusion3 decks19 decks
8%synergy
High Fae Trickster
15%inclusion2 decks13 decks
11%synergy
Emet-Selch of the Third Seat
14%inclusion1 decks7 decks
5%synergy
Fandaniel, Telophoroi Ascian
14%inclusion1 decks7 decks
8%synergy
Volatile Stormdrake
11%inclusion2 decks19 decks
9%synergy
Hoarding Broodlord
11%inclusion2 decks19 decks
9%synergy
Subtlety
11%inclusion2 decks19 decks
10%synergy
Cephalid Illusionist
11%inclusion2 decks19 decks
10%synergy
Malevolent Hermit
11%inclusion2 decks19 decks
10%synergy
Fear of Impostors
11%inclusion2 decks19 decks
9%synergy
Gilded Drake
11%inclusion2 decks19 decks
9%synergy
Pollywog Prodigy
11%inclusion2 decks19 decks
7%synergy
Nomads en-Kor
11%inclusion2 decks19 decks
10%synergy
Nezahal, Primal Tide
11%inclusion2 decks19 decks
7%synergy
Clever Impersonator
11%inclusion2 decks19 decks
9%synergy
Y'shtola, Night's Blessed
10%inclusion1 decks10 decks
9%synergy
Neerdiv, Devious Diver
7.7%inclusion1 decks13 decks
8%synergy
Starfield Mystic
5.3%inclusion1 decks19 decks
-1%synergy
Felidar Guardian
5.3%inclusion1 decks19 decks
4%synergy
Sheoldred, the Apocalypse
5.3%inclusion1 decks19 decks
-4%synergy
Vohar, Vodalian Desecrator
5.3%inclusion1 decks19 decks
2%synergy
Spellseeker
5.3%inclusion1 decks19 decks
4%synergy
Doom Whisperer
5.3%inclusion1 decks19 decks
4%synergy
Walking Ballista
5.3%inclusion1 decks19 decks
3%synergy
Hydroelectric Specimen
5.3%inclusion1 decks19 decks
2%synergy
Instants
Demonic Consultation
74%inclusion14 decks19 decks
66%synergy
Fierce Guardianship
74%inclusion14 decks19 decks
53%synergy
Swords to Plowshares
68%inclusion13 decks19 decks
1%synergy
Borne Upon a Wind
68%inclusion13 decks19 decks
64%synergy
Cabal Ritual
58%inclusion11 decks19 decks
55%synergy
An Offer You Can't Refuse
53%inclusion10 decks19 decks
25%synergy
Cyclonic Rift
53%inclusion10 decks19 decks
30%synergy
Mana Drain
37%inclusion7 decks19 decks
20%synergy
Chain of Vapor
32%inclusion6 decks19 decks
29%synergy
Brain Freeze
32%inclusion6 decks19 decks
31%synergy
Sink into Stupor
32%inclusion6 decks19 decks
19%synergy
Into the Flood Maw
26%inclusion5 decks19 decks
23%synergy
Darkblast
21%inclusion4 decks19 decks
21%synergy
Dispel
21%inclusion4 decks19 decks
18%synergy
Orim's Chant
16%inclusion3 decks19 decks
14%synergy
Retraction Helix
16%inclusion3 decks19 decks
15%synergy
Flare of Denial
16%inclusion3 decks19 decks
14%synergy
Culling the Weak
16%inclusion3 decks19 decks
14%synergy
Commandeer
16%inclusion3 decks19 decks
15%synergy
Path to Exile
16%inclusion3 decks19 decks
-27%synergy
Sacrifice
11%inclusion2 decks19 decks
10%synergy
Muddle the Mixture
11%inclusion2 decks19 decks
7%synergy
Dovin's Veto
11%inclusion2 decks19 decks
-16%synergy
Lim-Dûl's Vault
11%inclusion2 decks19 decks
7%synergy
Gifts Ungiven
11%inclusion2 decks19 decks
8%synergy
Strix Serenade
11%inclusion2 decks19 decks
7%synergy
Misdirection
11%inclusion2 decks19 decks
8%synergy
Snapback
11%inclusion2 decks19 decks
10%synergy
Saw in Half
11%inclusion2 decks19 decks
8%synergy
Deadly Rollick
5.3%inclusion1 decks19 decks
-10%synergy
Argivian Find
5.3%inclusion1 decks19 decks
5%synergy
Trickbind
5.3%inclusion1 decks19 decks
5%synergy
Frantic Search
5.3%inclusion1 decks19 decks
-13%synergy
Brainstorm
5.3%inclusion1 decks19 decks
-12%synergy
Spell Snare
5.3%inclusion1 decks19 decks
5%synergy
Banishing Knack
5.3%inclusion1 decks19 decks
5%synergy
Thirst for Meaning
5.3%inclusion1 decks19 decks
4%synergy
Unwanted Remake
5.3%inclusion1 decks19 decks
5%synergy
Arcane Denial
5.3%inclusion1 decks19 decks
-15%synergy
Anguished Unmaking
5.3%inclusion1 decks19 decks
-21%synergy
Wipe Away
5.3%inclusion1 decks19 decks
5%synergy
Dramatic Reversal
5.3%inclusion1 decks19 decks
3%synergy
March of Swirling Mist
5.3%inclusion1 decks19 decks
4%synergy
Miscast
5.3%inclusion1 decks19 decks
4%synergy
Sudden Substitution
5.3%inclusion1 decks19 decks
5%synergy
Dig Through Time
5.3%inclusion1 decks19 decks
0%synergy
Dismember
5.3%inclusion1 decks19 decks
-1%synergy
Sorceries
Sevinne's Reclamation
68%inclusion13 decks19 decks
60%synergy
Reanimate
42%inclusion8 decks19 decks
26%synergy
Flash Photography
40%inclusion2 decks5 decks
39%synergy
Windfall
32%inclusion6 decks19 decks
18%synergy
Mnemonic Betrayal
32%inclusion6 decks19 decks
29%synergy
Lively Dirge
26%inclusion5 decks19 decks
25%synergy
Unmarked Grave
26%inclusion5 decks19 decks
25%synergy
Yawgmoth's Will
26%inclusion5 decks19 decks
25%synergy
Beseech the Mirror
26%inclusion5 decks19 decks
22%synergy
Toxic Deluge
21%inclusion4 decks19 decks
1%synergy
Replenish
11%inclusion2 decks19 decks
9%synergy
Vindicate
11%inclusion2 decks19 decks
0%synergy
Timetwister
11%inclusion2 decks19 decks
9%synergy
Cabal Therapy
5.3%inclusion1 decks19 decks
5%synergy
Diabolic Intent
5.3%inclusion1 decks19 decks
0%synergy
Resurgent Belief
5.3%inclusion1 decks19 decks
3%synergy
Split Up
5.3%inclusion1 decks19 decks
4%synergy
Careful Study
5.3%inclusion1 decks19 decks
3%synergy
Dread Return
5.3%inclusion1 decks19 decks
3%synergy
Terminus
5.3%inclusion1 decks19 decks
1%synergy
Idyllic Tutor
5.3%inclusion1 decks19 decks
1%synergy
Treasure Cruise
5.3%inclusion1 decks19 decks
2%synergy
Lórien Revealed
5.3%inclusion1 decks19 decks
3%synergy
Praetor's Grasp
5.3%inclusion1 decks19 decks
2%synergy
Scheming Symmetry
5.3%inclusion1 decks19 decks
4%synergy
Demonic Counsel
5.3%inclusion1 decks19 decks
4%synergy
Dark Petition
5.3%inclusion1 decks19 decks
5%synergy
Whispering Madness
5.3%inclusion1 decks19 decks
4%synergy
Buried Alive
5.3%inclusion1 decks19 decks
1%synergy
Dark Deal
5.3%inclusion1 decks19 decks
4%synergy
Transmute Artifact
5.3%inclusion1 decks19 decks
4%synergy
Redress Fate
5.3%inclusion1 decks19 decks
0%synergy
Dance of the Manse
5.3%inclusion1 decks19 decks
2%synergy
Utility Artifacts
The One Ring
74%inclusion14 decks19 decks
61%synergy
Wishclaw Talisman
63%inclusion12 decks19 decks
55%synergy
Vexing Bauble
21%inclusion4 decks19 decks
19%synergy
Agatha's Soul Cauldron
16%inclusion3 decks19 decks
15%synergy
Mesmeric Orb
11%inclusion2 decks19 decks
9%synergy
Cursed Totem
11%inclusion2 decks19 decks
8%synergy
Sphere of Resistance
5.3%inclusion1 decks19 decks
5%synergy
Sensei's Divining Top
5.3%inclusion1 decks19 decks
-4%synergy
Crucible of Worlds
5.3%inclusion1 decks19 decks
4%synergy
Altar of the Brood
5.3%inclusion1 decks19 decks
4%synergy
Isochron Scepter
5.3%inclusion1 decks19 decks
3%synergy
Enchantments
Dance of the Dead
68%inclusion13 decks19 decks
66%synergy
Blind Obedience
63%inclusion12 decks19 decks
51%synergy
Amphibian Downpour
58%inclusion11 decks19 decks
53%synergy
Tinybones Joins Up
53%inclusion10 decks19 decks
51%synergy
The Meathook Massacre
47%inclusion9 decks19 decks
44%synergy
Necropotence
42%inclusion8 decks19 decks
36%synergy
Mirrormade
37%inclusion7 decks19 decks
27%synergy
Static Prison
37%inclusion7 decks19 decks
36%synergy
Counterbalance
32%inclusion6 decks19 decks
30%synergy
Ripples of Undeath
32%inclusion6 decks19 decks
29%synergy
Chains of Mephistopheles
32%inclusion6 decks19 decks
31%synergy
Steal Enchantment
26%inclusion5 decks19 decks
25%synergy
Copy Artifact
26%inclusion5 decks19 decks
25%synergy
Copy Enchantment
26%inclusion5 decks19 decks
22%synergy
Seal of Cleansing
26%inclusion5 decks19 decks
25%synergy
Seal of Removal
26%inclusion5 decks19 decks
26%synergy
Founding the Third Path
21%inclusion4 decks19 decks
21%synergy
Touch the Spirit Realm
21%inclusion4 decks19 decks
19%synergy
Attunement
16%inclusion3 decks19 decks
16%synergy
Leyline of Anticipation
16%inclusion3 decks19 decks
11%synergy
Aura of Silence
16%inclusion3 decks19 decks
13%synergy
Stillness in Motion
14%inclusion1 decks7 decks
14%synergy
Grasp of Fate
11%inclusion2 decks19 decks
4%synergy
Trouble in Pairs
11%inclusion2 decks19 decks
5%synergy
One with the Multiverse
5.3%inclusion1 decks19 decks
1%synergy
Parallax Wave
5.3%inclusion1 decks19 decks
5%synergy
Unnatural Selection
5.3%inclusion1 decks19 decks
5%synergy
Curse of Silence
5.3%inclusion1 decks19 decks
5%synergy
Parallax Nexus
5.3%inclusion1 decks19 decks
5%synergy
Spirit Mirror
5.3%inclusion1 decks19 decks
5%synergy
Out of the Tombs
5.3%inclusion1 decks19 decks
5%synergy
Chronic Flooding
5.3%inclusion1 decks19 decks
5%synergy
Opalescence
5.3%inclusion1 decks19 decks
5%synergy
Struggle for Project Purity
5.3%inclusion1 decks19 decks
5%synergy
Seal of Doom
5.3%inclusion1 decks19 decks
5%synergy
Dance of Many
5.3%inclusion1 decks19 decks
5%synergy
Omniscience
5.3%inclusion1 decks19 decks
1%synergy
Kismet
5.3%inclusion1 decks19 decks
5%synergy
Spirit-Sister's Call
5.3%inclusion1 decks19 decks
4%synergy
Charitable Levy
5.3%inclusion1 decks19 decks
5%synergy
Starfield of Nyx
5.3%inclusion1 decks19 decks
1%synergy
The Tale of Tamiyo
5.3%inclusion1 decks19 decks
5%synergy
Power Artifact
5.3%inclusion1 decks19 decks
5%synergy
Cemetery Tampering
5.3%inclusion1 decks19 decks
4%synergy
Second Chance
5.3%inclusion1 decks19 decks
5%synergy
Monologue Tax
5.3%inclusion1 decks19 decks
-1%synergy
Wound Reflection
5.3%inclusion1 decks19 decks
4%synergy
Painful Quandary
5.3%inclusion1 decks19 decks
3%synergy
Zur's Weirding
5.3%inclusion1 decks19 decks
5%synergy
Chthonian Nightmare
5.3%inclusion1 decks19 decks
5%synergy
Planeswalkers
Teferi, Time Raveler
47%inclusion9 decks19 decks
39%synergy
Jace, Wielder of Mysteries
5.3%inclusion1 decks19 decks
4%synergy
Ashiok, Dream Render
5.3%inclusion1 decks19 decks
4%synergy
Utility Lands
Otawara, Soaring City
84%inclusion16 decks19 decks
65%synergy
Urza's Saga
42%inclusion8 decks19 decks
30%synergy
City of Traitors
37%inclusion7 decks19 decks
36%synergy
Serra's Sanctum
32%inclusion6 decks19 decks
30%synergy
Emergence Zone
26%inclusion5 decks19 decks
24%synergy
Minamo, School at Water's Edge
21%inclusion4 decks19 decks
17%synergy
Bazaar of Baghdad
21%inclusion4 decks19 decks
21%synergy
Cephalid Coliseum
16%inclusion3 decks19 decks
12%synergy
Hall of Heliod's Generosity
11%inclusion2 decks19 decks
-2%synergy
Strip Mine
11%inclusion2 decks19 decks
9%synergy
Urborg, Tomb of Yawgmoth
11%inclusion2 decks19 decks
-3%synergy
Wasteland
5.3%inclusion1 decks19 decks
5%synergy
Mystic Sanctuary
5.3%inclusion1 decks19 decks
2%synergy
Arcane Lighthouse
5.3%inclusion1 decks19 decks
4%synergy
Crystal Vein
5.3%inclusion1 decks19 decks
5%synergy
Command Beacon
5.3%inclusion1 decks19 decks
3%synergy
Cabal Pit
5.3%inclusion1 decks19 decks
5%synergy
Karn's Bastion
5.3%inclusion1 decks19 decks
5%synergy
Takenuma, Abandoned Mire
5.3%inclusion1 decks19 decks
-1%synergy
Mana Artifacts
Sol Ring
100%inclusion19 decks19 decks
10%synergy
Arcane Signet
95%inclusion18 decks19 decks
7%synergy
Lotus Petal
89%inclusion17 decks19 decks
79%synergy
Mox Diamond
89%inclusion17 decks19 decks
83%synergy
Mox Opal
79%inclusion15 decks19 decks
71%synergy
Fellwar Stone
74%inclusion14 decks19 decks
41%synergy
Talisman of Dominance
68%inclusion13 decks19 decks
18%synergy
Lion's Eye Diamond
68%inclusion13 decks19 decks
66%synergy
Talisman of Progress
53%inclusion10 decks19 decks
8%synergy
Grim Monolith
47%inclusion9 decks19 decks
44%synergy
Talisman of Hierarchy
42%inclusion8 decks19 decks
-2%synergy
Mox Amber
32%inclusion6 decks19 decks
25%synergy
Relic of Legends
11%inclusion2 decks19 decks
4%synergy
Basalt Monolith
5.3%inclusion1 decks19 decks
3%synergy
Lands
Tundra
100%inclusion19 decks19 decks
84%synergy
Underground Sea
100%inclusion19 decks19 decks
84%synergy
Godless Shrine
100%inclusion19 decks19 decks
48%synergy
Scrubland
100%inclusion19 decks19 decks
84%synergy
Marsh Flats
100%inclusion19 decks19 decks
64%synergy
Polluted Delta
100%inclusion19 decks19 decks
62%synergy
Flooded Strand
100%inclusion19 decks19 decks
62%synergy
Watery Grave
100%inclusion19 decks19 decks
49%synergy
Command Tower
95%inclusion18 decks19 decks
2%synergy
Hallowed Fountain
95%inclusion18 decks19 decks
44%synergy
City of Brass
95%inclusion18 decks19 decks
80%synergy
Misty Rainforest
89%inclusion17 decks19 decks
79%synergy
Windswept Heath
89%inclusion17 decks19 decks
80%synergy
Gemstone Caverns
89%inclusion17 decks19 decks
82%synergy
Mana Confluence
89%inclusion17 decks19 decks
76%synergy
Verdant Catacombs
84%inclusion16 decks19 decks
75%synergy
Scalding Tarn
84%inclusion16 decks19 decks
74%synergy
Bloodstained Mire
84%inclusion16 decks19 decks
74%synergy
Exotic Orchard
68%inclusion13 decks19 decks
10%synergy
Undercity Sewers
58%inclusion11 decks19 decks
43%synergy
Arid Mesa
58%inclusion11 decks19 decks
49%synergy
Starting Town
57%inclusion4 decks7 decks
53%synergy
Morphic Pool
53%inclusion10 decks19 decks
19%synergy
Sea of Clouds
47%inclusion9 decks19 decks
12%synergy
Island
42%inclusion8 decks19 decks
-51%synergy
Sink into Stupor
32%inclusion6 decks19 decks
19%synergy
Vault of Champions
32%inclusion6 decks19 decks
-1%synergy
Swamp
21%inclusion4 decks19 decks
-71%synergy
Meticulous Archive
21%inclusion4 decks19 decks
7%synergy
Shadowy Backstreet
16%inclusion3 decks19 decks
3%synergy
Spire of Industry
16%inclusion3 decks19 decks
8%synergy
Tarnished Citadel
16%inclusion3 decks19 decks
15%synergy
Prismatic Vista
11%inclusion2 decks19 decks
7%synergy
Raffine's Tower
11%inclusion2 decks19 decks
-30%synergy
Cavern of Souls
11%inclusion2 decks19 decks
4%synergy
Talon Gates of Madara
11%inclusion2 decks19 decks
9%synergy
Plains
11%inclusion2 decks19 decks
-81%synergy
Forbidden Orchard
11%inclusion2 decks19 decks
8%synergy
Prairie Stream
5.3%inclusion1 decks19 decks
-35%synergy
Hydroelectric Specimen
5.3%inclusion1 decks19 decks
2%synergy
Reflecting Pool
5.3%inclusion1 decks19 decks
-3%synergy
Gloomlake Verge
5.3%inclusion1 decks19 decks
-6%synergy
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