The Master of Keys (Commander) - Expensive cEDH

The Master of Keys
Rank #301
59decks
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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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Utility Lands
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Exhibition Tidecaller
43%inclusion3 decks7 decks
43%synergy
High Synergy Cards
Intuition
95%inclusion56 decks59 decks
93%synergy
Abdel Adrian, Gorion's Ward
93%inclusion55 decks59 decks
92%synergy
Necromancy
95%inclusion56 decks59 decks
90%synergy
Entomb
93%inclusion55 decks59 decks
86%synergy
Dance of the Dead
88%inclusion52 decks59 decks
86%synergy
Thassa's Oracle
95%inclusion56 decks59 decks
86%synergy
Dress Down
88%inclusion52 decks59 decks
86%synergy
Animate Dead
95%inclusion56 decks59 decks
85%synergy
Tainted Pact
92%inclusion54 decks59 decks
85%synergy
Mindbreak Trap
90%inclusion53 decks59 decks
83%synergy
Top Cards
Esper Sentinel
100%inclusion59 decks59 decks
73%synergy
Mystic Remora
100%inclusion59 decks59 decks
79%synergy
Dark Ritual
97%inclusion57 decks59 decks
77%synergy
Swan Song
90%inclusion53 decks59 decks
70%synergy
Mental Misstep
88%inclusion52 decks59 decks
82%synergy
Force of Negation
88%inclusion52 decks59 decks
76%synergy
Orcish Bowmasters
88%inclusion52 decks59 decks
78%synergy
Silence
88%inclusion52 decks59 decks
78%synergy
Imperial Seal
85%inclusion50 decks59 decks
78%synergy
Flusterstorm
83%inclusion49 decks59 decks
75%synergy
Game Changers
Mana Vault
100%inclusion59 decks59 decks
91%synergy
Force of Will
100%inclusion59 decks59 decks
88%synergy
Ancient Tomb
98%inclusion58 decks59 decks
86%synergy
Demonic Tutor
98%inclusion58 decks59 decks
78%synergy
Rhystic Study
98%inclusion58 decks59 decks
67%synergy
Enlightened Tutor
98%inclusion58 decks59 decks
79%synergy
Vampiric Tutor
98%inclusion58 decks59 decks
82%synergy
Chrome Mox
98%inclusion58 decks59 decks
89%synergy
Mox Diamond
98%inclusion58 decks59 decks
91%synergy
Smothering Tithe
95%inclusion56 decks59 decks
64%synergy
Creatures
Lotho, Corrupt Shirriff
81%inclusion48 decks59 decks
64%synergy
Grand Abolisher
81%inclusion48 decks59 decks
67%synergy
Ranger-Captain of Eos
80%inclusion47 decks59 decks
74%synergy
Valley Floodcaller
71%inclusion42 decks59 decks
67%synergy
Voice of Victory
60%inclusion25 decks42 decks
51%synergy
Opposition Agent
53%inclusion31 decks59 decks
44%synergy
Wan Shi Tong, Librarian
50%inclusion9 decks18 decks
45%synergy
Displacer Kitten
49%inclusion29 decks59 decks
42%synergy
Auriok Salvagers
49%inclusion29 decks59 decks
49%synergy
Mockingbird
46%inclusion27 decks59 decks
41%synergy
Hullbreaker Horror
44%inclusion26 decks59 decks
38%synergy
Archivist of Oghma
42%inclusion25 decks59 decks
36%synergy
Lurrus of the Dream-Den
37%inclusion22 decks59 decks
36%synergy
Drannith Magistrate
34%inclusion20 decks59 decks
26%synergy
Ledger Shredder
34%inclusion20 decks59 decks
25%synergy
Tataru Taru
30%inclusion11 decks37 decks
21%synergy
Faerie Mastermind
27%inclusion16 decks59 decks
18%synergy
Hedron Crab
25%inclusion15 decks59 decks
25%synergy
Ghostly Pilferer
22%inclusion13 decks59 decks
15%synergy
Talion, the Kindly Lord
19%inclusion11 decks59 decks
11%synergy
Phyrexian Metamorph
17%inclusion10 decks59 decks
9%synergy
Psychic Frog
17%inclusion10 decks59 decks
10%synergy
High Fae Trickster
14%inclusion8 decks58 decks
9%synergy
Pollywog Prodigy
14%inclusion8 decks59 decks
10%synergy
Gran-Gran
11%inclusion2 decks18 decks
11%synergy
Snapcaster Mage
10%inclusion6 decks59 decks
8%synergy
Gilded Drake
10%inclusion6 decks59 decks
9%synergy
Malevolent Hermit
8.5%inclusion5 decks59 decks
8%synergy
Emet-Selch of the Third Seat
8.1%inclusion3 decks37 decks
-1%synergy
Voracious Tome-Skimmer
7.1%inclusion1 decks14 decks
6%synergy
Leonin Relic-Warder
6.8%inclusion4 decks59 decks
7%synergy
Doom Whisperer
6.8%inclusion4 decks59 decks
5%synergy
Dauthi Voidwalker
6.8%inclusion4 decks59 decks
1%synergy
Volatile Stormdrake
5.1%inclusion3 decks59 decks
4%synergy
Scrabbling Skullcrab
5.1%inclusion3 decks59 decks
4%synergy
Hoarding Broodlord
5.1%inclusion3 decks59 decks
3%synergy
Gravebreaker Lamia
5.1%inclusion3 decks59 decks
4%synergy
Zur the Enchanter
5.1%inclusion3 decks59 decks
0%synergy
Instants
Demonic Consultation
76%inclusion45 decks59 decks
68%synergy
Pact of Negation
76%inclusion45 decks59 decks
69%synergy
Borne Upon a Wind
73%inclusion43 decks59 decks
68%synergy
Fierce Guardianship
73%inclusion43 decks59 decks
53%synergy
Cabal Ritual
63%inclusion37 decks59 decks
59%synergy
Swords to Plowshares
61%inclusion36 decks59 decks
-7%synergy
Mystical Tutor
61%inclusion36 decks59 decks
50%synergy
Gifts Ungiven
53%inclusion31 decks59 decks
50%synergy
An Offer You Can't Refuse
47%inclusion28 decks59 decks
20%synergy
Cyclonic Rift
46%inclusion27 decks59 decks
23%synergy
Into the Flood Maw
39%inclusion23 decks59 decks
35%synergy
Mana Drain
37%inclusion22 decks59 decks
20%synergy
Darkblast
31%inclusion18 decks59 decks
30%synergy
Sink into Stupor
29%inclusion17 decks59 decks
16%synergy
Chain of Vapor
27%inclusion16 decks59 decks
24%synergy
Retraction Helix
22%inclusion13 decks59 decks
21%synergy
Brain Freeze
22%inclusion13 decks59 decks
21%synergy
Culling the Weak
17%inclusion10 decks59 decks
15%synergy
Ad Nauseam
17%inclusion10 decks59 decks
15%synergy
Orim's Chant
14%inclusion8 decks59 decks
12%synergy
Banishing Knack
14%inclusion8 decks59 decks
13%synergy
Deadly Rollick
12%inclusion7 decks59 decks
-3%synergy
Dispel
12%inclusion7 decks59 decks
9%synergy
Path to Exile
12%inclusion7 decks59 decks
-30%synergy
Lim-Dûl's Vault
8.5%inclusion5 decks59 decks
5%synergy
Muddle the Mixture
6.8%inclusion4 decks59 decks
3%synergy
Sacrifice
5.1%inclusion3 decks59 decks
4%synergy
Flare of Denial
5.1%inclusion3 decks59 decks
3%synergy
Angel's Grace
5.1%inclusion3 decks59 decks
2%synergy
Misdirection
5.1%inclusion3 decks59 decks
3%synergy
Miscast
5.1%inclusion3 decks59 decks
4%synergy
Snapback
5.1%inclusion3 decks59 decks
5%synergy
Strix Serenade
5.1%inclusion3 decks59 decks
2%synergy
Saw in Half
5.1%inclusion3 decks59 decks
3%synergy
Rain of Filth
5.1%inclusion3 decks59 decks
5%synergy
Spell Pierce
5.1%inclusion3 decks59 decks
2%synergy
Sorceries
Sevinne's Reclamation
76%inclusion45 decks59 decks
67%synergy
Lively Dirge
32%inclusion19 decks59 decks
31%synergy
Reanimate
31%inclusion18 decks59 decks
14%synergy
Beseech the Mirror
31%inclusion18 decks59 decks
27%synergy
Windfall
29%inclusion17 decks59 decks
16%synergy
Toxic Deluge
22%inclusion13 decks59 decks
2%synergy
Demonic Counsel
17%inclusion10 decks59 decks
16%synergy
Flash Photography
17%inclusion3 decks18 decks
16%synergy
Cabal Therapy
14%inclusion8 decks59 decks
13%synergy
Yawgmoth's Will
14%inclusion8 decks59 decks
12%synergy
Timetwister
12%inclusion7 decks59 decks
11%synergy
Praetor's Grasp
10%inclusion6 decks59 decks
7%synergy
Diabolic Intent
8.5%inclusion5 decks59 decks
4%synergy
Mnemonic Betrayal
8.5%inclusion5 decks59 decks
6%synergy
Unmarked Grave
6.8%inclusion4 decks59 decks
5%synergy
Transmute Artifact
6.8%inclusion4 decks59 decks
5%synergy
Gitaxian Probe
5.1%inclusion3 decks59 decks
3%synergy
Grim Tutor
5.1%inclusion3 decks59 decks
1%synergy
Utility Artifacts
The One Ring
69%inclusion41 decks59 decks
57%synergy
Wishclaw Talisman
56%inclusion33 decks59 decks
48%synergy
Vexing Bauble
12%inclusion7 decks59 decks
10%synergy
Mesmeric Orb
8.5%inclusion5 decks59 decks
7%synergy
Sensei's Divining Top
5.1%inclusion3 decks59 decks
-4%synergy
Cursed Totem
5.1%inclusion3 decks59 decks
3%synergy
Altar of the Brood
5.1%inclusion3 decks59 decks
4%synergy
Enchantments
Tinybones Joins Up
76%inclusion45 decks59 decks
75%synergy
Chains of Mephistopheles
68%inclusion40 decks59 decks
68%synergy
Necropotence
59%inclusion35 decks59 decks
53%synergy
Amphibian Downpour
59%inclusion35 decks59 decks
55%synergy
Mirrormade
56%inclusion33 decks59 decks
46%synergy
The Meathook Massacre
54%inclusion32 decks59 decks
51%synergy
Copy Artifact
54%inclusion32 decks59 decks
53%synergy
Blind Obedience
53%inclusion31 decks59 decks
41%synergy
Ripples of Undeath
46%inclusion27 decks59 decks
43%synergy
Static Prison
46%inclusion27 decks59 decks
45%synergy
Steal Enchantment
44%inclusion26 decks59 decks
43%synergy
Touch the Spirit Realm
41%inclusion24 decks59 decks
38%synergy
Counterbalance
27%inclusion16 decks59 decks
26%synergy
Founding the Third Path
27%inclusion16 decks59 decks
27%synergy
Trouble in Pairs
24%inclusion14 decks59 decks
18%synergy
Copy Enchantment
20%inclusion12 decks59 decks
16%synergy
Monologue Tax
14%inclusion8 decks59 decks
7%synergy
Leyline of Anticipation
12%inclusion7 decks59 decks
8%synergy
Charitable Levy
10%inclusion6 decks59 decks
10%synergy
Aura of Silence
10%inclusion6 decks59 decks
7%synergy
Power Artifact
8.5%inclusion5 decks59 decks
8%synergy
Seal of Cleansing
8.5%inclusion5 decks59 decks
7%synergy
Stillness in Motion
7.3%inclusion3 decks41 decks
7%synergy
Teval's Judgment
7.1%inclusion3 decks42 decks
6%synergy
Mornsong Aria
7.1%inclusion1 decks14 decks
6%synergy
Seal of Removal
5.1%inclusion3 decks59 decks
4%synergy
Second Chance
5.1%inclusion3 decks59 decks
5%synergy
Planeswalkers
Teferi, Time Raveler
46%inclusion27 decks59 decks
38%synergy
Tezzeret, Cruel Captain
6.7%inclusion2 decks30 decks
5%synergy
Utility Lands
Otawara, Soaring City
88%inclusion52 decks59 decks
69%synergy
Urza's Saga
37%inclusion22 decks59 decks
26%synergy
City of Traitors
37%inclusion22 decks59 decks
36%synergy
Emergence Zone
34%inclusion20 decks59 decks
32%synergy
Cephalid Coliseum
31%inclusion18 decks59 decks
27%synergy
Minamo, School at Water's Edge
29%inclusion17 decks59 decks
25%synergy
Serra's Sanctum
25%inclusion15 decks59 decks
24%synergy
Urborg, Tomb of Yawgmoth
12%inclusion7 decks59 decks
-1%synergy
Takenuma, Abandoned Mire
10%inclusion6 decks59 decks
4%synergy
Bazaar of Baghdad
10%inclusion6 decks59 decks
10%synergy
Phyrexian Tower
6.8%inclusion4 decks59 decks
3%synergy
Hall of Heliod's Generosity
6.8%inclusion4 decks59 decks
-6%synergy
Mana Artifacts
Sol Ring
100%inclusion59 decks59 decks
10%synergy
Arcane Signet
97%inclusion57 decks59 decks
9%synergy
Lotus Petal
97%inclusion57 decks59 decks
86%synergy
Lion's Eye Diamond
88%inclusion52 decks59 decks
86%synergy
Mox Opal
83%inclusion49 decks59 decks
75%synergy
Talisman of Dominance
71%inclusion42 decks59 decks
21%synergy
Fellwar Stone
68%inclusion40 decks59 decks
35%synergy
Grim Monolith
58%inclusion34 decks59 decks
54%synergy
Talisman of Progress
46%inclusion27 decks59 decks
2%synergy
Mox Amber
37%inclusion22 decks59 decks
31%synergy
Talisman of Hierarchy
24%inclusion14 decks59 decks
-21%synergy
Basalt Monolith
10%inclusion6 decks59 decks
8%synergy
Dimir Signet
5.1%inclusion3 decks59 decks
-26%synergy
Azorius Signet
5.1%inclusion3 decks59 decks
-25%synergy
Springleaf Drum
5.1%inclusion3 decks59 decks
3%synergy
Lands
Tundra
100%inclusion59 decks59 decks
84%synergy
Underground Sea
100%inclusion59 decks59 decks
84%synergy
Marsh Flats
100%inclusion59 decks59 decks
64%synergy
Polluted Delta
100%inclusion59 decks59 decks
62%synergy
Flooded Strand
100%inclusion59 decks59 decks
62%synergy
Scrubland
100%inclusion59 decks59 decks
84%synergy
Command Tower
98%inclusion58 decks59 decks
6%synergy
Watery Grave
98%inclusion58 decks59 decks
47%synergy
Hallowed Fountain
95%inclusion56 decks59 decks
44%synergy
Godless Shrine
93%inclusion55 decks59 decks
42%synergy
Gemstone Caverns
93%inclusion55 decks59 decks
86%synergy
Mana Confluence
92%inclusion54 decks59 decks
78%synergy
City of Brass
90%inclusion53 decks59 decks
75%synergy
Misty Rainforest
88%inclusion52 decks59 decks
77%synergy
Verdant Catacombs
81%inclusion48 decks59 decks
72%synergy
Scalding Tarn
78%inclusion46 decks59 decks
67%synergy
Bloodstained Mire
78%inclusion46 decks59 decks
67%synergy
Windswept Heath
68%inclusion40 decks59 decks
58%synergy
Morphic Pool
63%inclusion37 decks59 decks
29%synergy
Arid Mesa
59%inclusion35 decks59 decks
50%synergy
Exotic Orchard
58%inclusion34 decks59 decks
-1%synergy
Undercity Sewers
49%inclusion29 decks59 decks
35%synergy
Sea of Clouds
46%inclusion27 decks59 decks
11%synergy
Vault of Champions
39%inclusion23 decks59 decks
7%synergy
Starting Town
35%inclusion13 decks37 decks
31%synergy
Island
32%inclusion19 decks59 decks
-61%synergy
Sink into Stupor
29%inclusion17 decks59 decks
16%synergy
Swamp
27%inclusion16 decks59 decks
-65%synergy
Shadowy Backstreet
25%inclusion15 decks59 decks
13%synergy
Meticulous Archive
22%inclusion13 decks59 decks
8%synergy
Cavern of Souls
20%inclusion12 decks59 decks
14%synergy
Plains
19%inclusion11 decks59 decks
-73%synergy
Spire of Industry
10%inclusion6 decks59 decks
2%synergy
Tarnished Citadel
10%inclusion6 decks59 decks
9%synergy
Forbidden Orchard
10%inclusion6 decks59 decks
8%synergy
Raffine's Tower
8.5%inclusion5 decks59 decks
-32%synergy
Talon Gates of Madara
8.5%inclusion5 decks59 decks
7%synergy
Gloomlake Verge
8.5%inclusion5 decks59 decks
-3%synergy
Floodfarm Verge
8.5%inclusion5 decks59 decks
-3%synergy
Underground River
6.8%inclusion4 decks59 decks
-28%synergy
Caves of Koilos
5.1%inclusion3 decks59 decks
-31%synergy
Silent Clearing
5.1%inclusion3 decks59 decks
3%synergy
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