The Master of Keys (Commander) - cEDH Midrange

The Master of Keys
Rank #295
42decks
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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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Instants
Sorceries
Utility Artifacts
Enchantments
Planeswalkers
Utility Lands
Mana Artifacts
Lands
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Gleaming Splendor
100%inclusion2 decks2 decks
92%synergy
The Queen of Dale
33%inclusion1 decks3 decks
29%synergy
King T'Challa
14%inclusion1 decks7 decks
12%synergy
High Synergy Cards
Necromancy
98%inclusion41 decks42 decks
93%synergy
Dance of the Dead
93%inclusion39 decks42 decks
91%synergy
Dress Down
90%inclusion38 decks42 decks
88%synergy
Animate Dead
98%inclusion41 decks42 decks
88%synergy
Abdel Adrian, Gorion's Ward
88%inclusion37 decks42 decks
86%synergy
Tainted Pact
90%inclusion38 decks42 decks
84%synergy
Entomb
90%inclusion38 decks42 decks
84%synergy
Ranger-Captain of Eos
86%inclusion36 decks42 decks
80%synergy
Intuition
81%inclusion34 decks42 decks
79%synergy
Mindbreak Trap
86%inclusion36 decks42 decks
79%synergy
Top Cards
Dark Ritual
95%inclusion40 decks42 decks
75%synergy
Mystic Remora
95%inclusion40 decks42 decks
75%synergy
Esper Sentinel
95%inclusion40 decks42 decks
68%synergy
Swan Song
90%inclusion38 decks42 decks
70%synergy
Silence
88%inclusion37 decks42 decks
78%synergy
Orcish Bowmasters
88%inclusion37 decks42 decks
78%synergy
Force of Negation
86%inclusion36 decks42 decks
74%synergy
Swords to Plowshares
86%inclusion36 decks42 decks
18%synergy
Lotho, Corrupt Shirriff
86%inclusion36 decks42 decks
69%synergy
Flusterstorm
83%inclusion35 decks42 decks
76%synergy
Game Changers
Ancient Tomb
95%inclusion40 decks42 decks
83%synergy
Mana Vault
95%inclusion40 decks42 decks
87%synergy
Smothering Tithe
95%inclusion40 decks42 decks
65%synergy
Enlightened Tutor
95%inclusion40 decks42 decks
77%synergy
Chrome Mox
95%inclusion40 decks42 decks
86%synergy
Vampiric Tutor
95%inclusion40 decks42 decks
79%synergy
Demonic Tutor
95%inclusion40 decks42 decks
75%synergy
Force of Will
93%inclusion39 decks42 decks
81%synergy
Rhystic Study
93%inclusion39 decks42 decks
63%synergy
Thassa's Oracle
90%inclusion38 decks42 decks
82%synergy
Creatures
Grand Abolisher
83%inclusion35 decks42 decks
69%synergy
Valley Floodcaller
71%inclusion30 decks42 decks
68%synergy
Opposition Agent
52%inclusion22 decks42 decks
45%synergy
Voice of Victory
52%inclusion14 decks27 decks
43%synergy
Mockingbird
50%inclusion21 decks42 decks
46%synergy
Displacer Kitten
48%inclusion20 decks42 decks
41%synergy
Hullbreaker Horror
48%inclusion20 decks42 decks
42%synergy
Wan Shi Tong, Librarian
47%inclusion7 decks15 decks
42%synergy
Archivist of Oghma
43%inclusion18 decks42 decks
37%synergy
Tataru Taru
42%inclusion10 decks24 decks
33%synergy
Auriok Salvagers
40%inclusion17 decks42 decks
40%synergy
Lurrus of the Dream-Den
38%inclusion16 decks42 decks
37%synergy
Faerie Mastermind
36%inclusion15 decks42 decks
26%synergy
Ledger Shredder
36%inclusion15 decks42 decks
27%synergy
Phyrexian Metamorph
29%inclusion12 decks42 decks
21%synergy
Exhibition Tidecaller
23%inclusion3 decks13 decks
22%synergy
Hedron Crab
21%inclusion9 decks42 decks
21%synergy
Psychic Frog
21%inclusion9 decks42 decks
14%synergy
Ghostly Pilferer
19%inclusion8 decks42 decks
12%synergy
Leonin Relic-Warder
17%inclusion7 decks42 decks
16%synergy
Talion, the Kindly Lord
17%inclusion7 decks42 decks
9%synergy
Drannith Magistrate
17%inclusion7 decks42 decks
9%synergy
Pollywog Prodigy
14%inclusion6 decks42 decks
11%synergy
Malevolent Hermit
12%inclusion5 decks42 decks
11%synergy
High Fae Trickster
11%inclusion4 decks37 decks
6%synergy
Consecrated Sphinx
10%inclusion4 decks42 decks
4%synergy
Nezahal, Primal Tide
10%inclusion4 decks42 decks
6%synergy
Entity Tracker
10%inclusion4 decks42 decks
4%synergy
Volatile Stormdrake
7.1%inclusion3 decks42 decks
6%synergy
Scrabbling Skullcrab
7.1%inclusion3 decks42 decks
6%synergy
Hoarding Broodlord
7.1%inclusion3 decks42 decks
5%synergy
Snapcaster Mage
7.1%inclusion3 decks42 decks
5%synergy
Subtlety
7.1%inclusion3 decks42 decks
7%synergy
Vohar, Vodalian Desecrator
7.1%inclusion3 decks42 decks
3%synergy
Doom Whisperer
7.1%inclusion3 decks42 decks
6%synergy
Hydroelectric Specimen
7.1%inclusion3 decks42 decks
4%synergy
Phantasmal Image
7.1%inclusion3 decks42 decks
5%synergy
Clever Impersonator
7.1%inclusion3 decks42 decks
5%synergy
Gran-Gran
6.7%inclusion1 decks15 decks
7%synergy
Instants
Demonic Consultation
81%inclusion34 decks42 decks
73%synergy
Mental Misstep
79%inclusion33 decks42 decks
72%synergy
Pact of Negation
79%inclusion33 decks42 decks
71%synergy
Mystical Tutor
76%inclusion32 decks42 decks
66%synergy
Fierce Guardianship
74%inclusion31 decks42 decks
54%synergy
Borne Upon a Wind
71%inclusion30 decks42 decks
67%synergy
Cyclonic Rift
67%inclusion28 decks42 decks
44%synergy
An Offer You Can't Refuse
60%inclusion25 decks42 decks
31%synergy
Cabal Ritual
50%inclusion21 decks42 decks
47%synergy
Chain of Vapor
48%inclusion20 decks42 decks
45%synergy
Into the Flood Maw
40%inclusion17 decks42 decks
37%synergy
Gifts Ungiven
38%inclusion16 decks42 decks
35%synergy
Sink into Stupor
36%inclusion15 decks42 decks
22%synergy
Mana Drain
24%inclusion10 decks42 decks
7%synergy
Retraction Helix
19%inclusion8 decks42 decks
18%synergy
Brain Freeze
19%inclusion8 decks42 decks
18%synergy
Muddle the Mixture
14%inclusion6 decks42 decks
11%synergy
Culling the Weak
14%inclusion6 decks42 decks
13%synergy
Darkblast
14%inclusion6 decks42 decks
14%synergy
Dispel
14%inclusion6 decks42 decks
11%synergy
Ad Nauseam
14%inclusion6 decks42 decks
12%synergy
Commandeer
14%inclusion6 decks42 decks
13%synergy
Orim's Chant
12%inclusion5 decks42 decks
10%synergy
Lim-Dûl's Vault
12%inclusion5 decks42 decks
9%synergy
Banishing Knack
12%inclusion5 decks42 decks
12%synergy
Misdirection
12%inclusion5 decks42 decks
9%synergy
Deadly Rollick
7.1%inclusion3 decks42 decks
-9%synergy
Sacrifice
7.1%inclusion3 decks42 decks
7%synergy
Drown in the Loch
7.1%inclusion3 decks42 decks
5%synergy
Frantic Search
7.1%inclusion3 decks42 decks
-12%synergy
Dovin's Veto
7.1%inclusion3 decks42 decks
-19%synergy
Negate
7.1%inclusion3 decks42 decks
-9%synergy
Angel's Grace
7.1%inclusion3 decks42 decks
4%synergy
Strix Serenade
7.1%inclusion3 decks42 decks
4%synergy
Snapback
7.1%inclusion3 decks42 decks
7%synergy
Saw in Half
7.1%inclusion3 decks42 decks
5%synergy
Sorceries
Imperial Seal
81%inclusion34 decks42 decks
74%synergy
Sevinne's Reclamation
67%inclusion28 decks42 decks
58%synergy
Lively Dirge
38%inclusion16 decks42 decks
37%synergy
Flash Photography
31%inclusion5 decks16 decks
30%synergy
Windfall
31%inclusion13 decks42 decks
18%synergy
Toxic Deluge
29%inclusion12 decks42 decks
9%synergy
Reanimate
26%inclusion11 decks42 decks
10%synergy
Mnemonic Betrayal
24%inclusion10 decks42 decks
21%synergy
Praetor's Grasp
19%inclusion8 decks42 decks
16%synergy
Demonic Counsel
19%inclusion8 decks42 decks
18%synergy
Beseech the Mirror
17%inclusion7 decks42 decks
13%synergy
Unmarked Grave
14%inclusion6 decks42 decks
13%synergy
Yawgmoth's Will
7.1%inclusion3 decks42 decks
6%synergy
Buried Alive
7.1%inclusion3 decks42 decks
3%synergy
Singularity Rupture
5.0%inclusion1 decks20 decks
3%synergy
Utility Artifacts
The One Ring
69%inclusion29 decks42 decks
57%synergy
Wishclaw Talisman
64%inclusion27 decks42 decks
57%synergy
Sensei's Divining Top
10%inclusion4 decks42 decks
0%synergy
Vexing Bauble
10%inclusion4 decks42 decks
8%synergy
Imposter Mech
7.1%inclusion3 decks42 decks
6%synergy
Enchantments
Tinybones Joins Up
79%inclusion33 decks42 decks
77%synergy
Amphibian Downpour
62%inclusion26 decks42 decks
57%synergy
Mirrormade
52%inclusion22 decks42 decks
43%synergy
Touch the Spirit Realm
50%inclusion21 decks42 decks
48%synergy
Blind Obedience
50%inclusion21 decks42 decks
38%synergy
Necropotence
50%inclusion21 decks42 decks
44%synergy
Copy Artifact
45%inclusion19 decks42 decks
44%synergy
The Meathook Massacre
40%inclusion17 decks42 decks
37%synergy
Ripples of Undeath
38%inclusion16 decks42 decks
35%synergy
Static Prison
33%inclusion14 decks42 decks
33%synergy
Founding the Third Path
24%inclusion10 decks42 decks
24%synergy
Steal Enchantment
24%inclusion10 decks42 decks
23%synergy
Counterbalance
21%inclusion9 decks42 decks
20%synergy
Copy Enchantment
21%inclusion9 decks42 decks
17%synergy
Chains of Mephistopheles
19%inclusion8 decks42 decks
19%synergy
Monologue Tax
14%inclusion6 decks42 decks
8%synergy
Seal of Removal
14%inclusion6 decks42 decks
14%synergy
Trouble in Pairs
14%inclusion6 decks42 decks
9%synergy
Verity Circle
10%inclusion4 decks42 decks
9%synergy
Out of Time
7.1%inclusion3 decks42 decks
6%synergy
Seal of Cleansing
7.1%inclusion3 decks42 decks
6%synergy
Planeswalkers
Teferi, Time Raveler
31%inclusion13 decks42 decks
23%synergy
Tezzeret, Cruel Captain
10%inclusion2 decks21 decks
8%synergy
Utility Lands
Otawara, Soaring City
88%inclusion37 decks42 decks
69%synergy
Urza's Saga
45%inclusion19 decks42 decks
34%synergy
Cephalid Coliseum
31%inclusion13 decks42 decks
27%synergy
Emergence Zone
29%inclusion12 decks42 decks
27%synergy
City of Traitors
21%inclusion9 decks42 decks
20%synergy
Minamo, School at Water's Edge
17%inclusion7 decks42 decks
13%synergy
Serra's Sanctum
14%inclusion6 decks42 decks
13%synergy
Mana Artifacts
Sol Ring
100%inclusion42 decks42 decks
10%synergy
Arcane Signet
95%inclusion40 decks42 decks
8%synergy
Lotus Petal
93%inclusion39 decks42 decks
83%synergy
Mox Opal
88%inclusion37 decks42 decks
80%synergy
Mox Diamond
88%inclusion37 decks42 decks
81%synergy
Talisman of Dominance
76%inclusion32 decks42 decks
26%synergy
Fellwar Stone
74%inclusion31 decks42 decks
41%synergy
Lion's Eye Diamond
64%inclusion27 decks42 decks
62%synergy
Talisman of Progress
52%inclusion22 decks42 decks
8%synergy
Grim Monolith
40%inclusion17 decks42 decks
37%synergy
Mox Amber
40%inclusion17 decks42 decks
34%synergy
Talisman of Hierarchy
33%inclusion14 decks42 decks
-12%synergy
Dimir Signet
7.1%inclusion3 decks42 decks
-22%synergy
Orzhov Signet
7.1%inclusion3 decks42 decks
-24%synergy
Azorius Signet
7.1%inclusion3 decks42 decks
-22%synergy
Lands
Command Tower
100%inclusion42 decks42 decks
7%synergy
Godless Shrine
95%inclusion40 decks42 decks
43%synergy
Polluted Delta
95%inclusion40 decks42 decks
57%synergy
Flooded Strand
95%inclusion40 decks42 decks
57%synergy
Watery Grave
95%inclusion40 decks42 decks
44%synergy
Gemstone Caverns
93%inclusion39 decks42 decks
85%synergy
Mana Confluence
93%inclusion39 decks42 decks
79%synergy
Marsh Flats
93%inclusion39 decks42 decks
57%synergy
Hallowed Fountain
93%inclusion39 decks42 decks
41%synergy
Tundra
90%inclusion38 decks42 decks
74%synergy
Scrubland
90%inclusion38 decks42 decks
74%synergy
City of Brass
90%inclusion38 decks42 decks
75%synergy
Underground Sea
88%inclusion37 decks42 decks
72%synergy
Misty Rainforest
86%inclusion36 decks42 decks
75%synergy
Bloodstained Mire
86%inclusion36 decks42 decks
75%synergy
Verdant Catacombs
76%inclusion32 decks42 decks
67%synergy
Morphic Pool
76%inclusion32 decks42 decks
43%synergy
Exotic Orchard
74%inclusion31 decks42 decks
15%synergy
Windswept Heath
71%inclusion30 decks42 decks
62%synergy
Scalding Tarn
71%inclusion30 decks42 decks
61%synergy
Arid Mesa
67%inclusion28 decks42 decks
57%synergy
Undercity Sewers
55%inclusion23 decks42 decks
40%synergy
Sea of Clouds
45%inclusion19 decks42 decks
11%synergy
Vault of Champions
45%inclusion19 decks42 decks
13%synergy
Starting Town
42%inclusion10 decks24 decks
37%synergy
Island
36%inclusion15 decks42 decks
-57%synergy
Sink into Stupor
36%inclusion15 decks42 decks
22%synergy
Swamp
26%inclusion11 decks42 decks
-66%synergy
Meticulous Archive
26%inclusion11 decks42 decks
12%synergy
Spire of Industry
21%inclusion9 decks42 decks
14%synergy
Cavern of Souls
21%inclusion9 decks42 decks
15%synergy
Plains
19%inclusion8 decks42 decks
-73%synergy
Tarnished Citadel
14%inclusion6 decks42 decks
13%synergy
Silent Clearing
12%inclusion5 decks42 decks
10%synergy
Shadowy Backstreet
10%inclusion4 decks42 decks
-3%synergy
Tainted Isle
7.1%inclusion3 decks42 decks
1%synergy
Caves of Koilos
7.1%inclusion3 decks42 decks
-29%synergy
Hydroelectric Specimen
7.1%inclusion3 decks42 decks
4%synergy
Raffine's Tower
7.1%inclusion3 decks42 decks
-34%synergy
Arcane Sanctum
7.1%inclusion3 decks42 decks
-47%synergy
Talon Gates of Madara
7.1%inclusion3 decks42 decks
6%synergy
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