The Master of Keys (Commander) - Expensive cEDH Combo

The Master of Keys
Rank #305
9decks
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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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Tinybones Joins Up
100%inclusion9 decks9 decks
99%synergy
Abdel Adrian, Gorion's Ward
100%inclusion9 decks9 decks
98%synergy
Dance of the Dead
100%inclusion9 decks9 decks
98%synergy
Dress Down
100%inclusion9 decks9 decks
98%synergy
Valley Floodcaller
100%inclusion9 decks9 decks
96%synergy
Necromancy
100%inclusion9 decks9 decks
95%synergy
Ranger-Captain of Eos
100%inclusion9 decks9 decks
94%synergy
Mental Misstep
100%inclusion9 decks9 decks
93%synergy
Mindbreak Trap
100%inclusion9 decks9 decks
93%synergy
Entomb
100%inclusion9 decks9 decks
93%synergy
Top Cards
Lotho, Corrupt Shirriff
100%inclusion9 decks9 decks
83%synergy
Tainted Pact
100%inclusion9 decks9 decks
93%synergy
Dark Ritual
100%inclusion9 decks9 decks
80%synergy
Esper Sentinel
100%inclusion9 decks9 decks
73%synergy
Flusterstorm
100%inclusion9 decks9 decks
92%synergy
Mystic Remora
100%inclusion9 decks9 decks
79%synergy
Silence
100%inclusion9 decks9 decks
90%synergy
Demonic Consultation
100%inclusion9 decks9 decks
92%synergy
Force of Negation
100%inclusion9 decks9 decks
88%synergy
Animate Dead
100%inclusion9 decks9 decks
90%synergy
Game Changers
Smothering Tithe
100%inclusion9 decks9 decks
69%synergy
Thassa's Oracle
100%inclusion9 decks9 decks
91%synergy
Ancient Tomb
100%inclusion9 decks9 decks
87%synergy
Intuition
100%inclusion9 decks9 decks
98%synergy
Mana Vault
100%inclusion9 decks9 decks
91%synergy
Demonic Tutor
100%inclusion9 decks9 decks
79%synergy
Force of Will
100%inclusion9 decks9 decks
88%synergy
Chrome Mox
100%inclusion9 decks9 decks
91%synergy
Vampiric Tutor
100%inclusion9 decks9 decks
83%synergy
Mox Diamond
100%inclusion9 decks9 decks
93%synergy
Creatures
Wan Shi Tong, Librarian
100%inclusion1 decks1 decks
95%synergy
Grand Abolisher
89%inclusion8 decks9 decks
74%synergy
Orcish Bowmasters
89%inclusion8 decks9 decks
78%synergy
Archivist of Oghma
78%inclusion7 decks9 decks
71%synergy
Mockingbird
78%inclusion7 decks9 decks
73%synergy
Phyrexian Metamorph
67%inclusion6 decks9 decks
58%synergy
Voice of Victory
60%inclusion3 decks5 decks
52%synergy
Displacer Kitten
44%inclusion4 decks9 decks
38%synergy
Opposition Agent
44%inclusion4 decks9 decks
36%synergy
Lurrus of the Dream-Den
44%inclusion4 decks9 decks
43%synergy
Hedron Crab
44%inclusion4 decks9 decks
44%synergy
Auriok Salvagers
44%inclusion4 decks9 decks
44%synergy
Tataru Taru
40%inclusion2 decks5 decks
32%synergy
Hullbreaker Horror
33%inclusion3 decks9 decks
27%synergy
Ledger Shredder
33%inclusion3 decks9 decks
25%synergy
Ghostly Pilferer
33%inclusion3 decks9 decks
26%synergy
Snapcaster Mage
22%inclusion2 decks9 decks
20%synergy
Faerie Mastermind
22%inclusion2 decks9 decks
13%synergy
Emet-Selch of the Third Seat
20%inclusion1 decks5 decks
11%synergy
Volatile Stormdrake
11%inclusion1 decks9 decks
10%synergy
Flesh Duplicate
11%inclusion1 decks9 decks
10%synergy
High Fae Trickster
11%inclusion1 decks9 decks
7%synergy
Consecrated Sphinx
11%inclusion1 decks9 decks
5%synergy
Spellseeker
11%inclusion1 decks9 decks
10%synergy
Ruthless Technomancer
11%inclusion1 decks9 decks
11%synergy
Malevolent Hermit
11%inclusion1 decks9 decks
10%synergy
Pollywog Prodigy
11%inclusion1 decks9 decks
7%synergy
Drannith Magistrate
11%inclusion1 decks9 decks
3%synergy
Neerdiv, Devious Diver
11%inclusion1 decks9 decks
11%synergy
Phantasmal Image
11%inclusion1 decks9 decks
9%synergy
Nezahal, Primal Tide
11%inclusion1 decks9 decks
7%synergy
Instants
Swan Song
89%inclusion8 decks9 decks
69%synergy
Enlightened Tutor
89%inclusion8 decks9 decks
69%synergy
Pact of Negation
78%inclusion7 decks9 decks
70%synergy
Cabal Ritual
67%inclusion6 decks9 decks
63%synergy
Borne Upon a Wind
67%inclusion6 decks9 decks
62%synergy
Fierce Guardianship
67%inclusion6 decks9 decks
46%synergy
Gifts Ungiven
56%inclusion5 decks9 decks
53%synergy
Swords to Plowshares
56%inclusion5 decks9 decks
-13%synergy
Retraction Helix
44%inclusion4 decks9 decks
44%synergy
Darkblast
44%inclusion4 decks9 decks
44%synergy
Banishing Knack
44%inclusion4 decks9 decks
44%synergy
Cyclonic Rift
44%inclusion4 decks9 decks
21%synergy
Mystical Tutor
44%inclusion4 decks9 decks
33%synergy
Chain of Vapor
33%inclusion3 decks9 decks
30%synergy
An Offer You Can't Refuse
33%inclusion3 decks9 decks
6%synergy
Brain Freeze
33%inclusion3 decks9 decks
33%synergy
Into the Flood Maw
33%inclusion3 decks9 decks
30%synergy
Dispel
22%inclusion2 decks9 decks
19%synergy
Ad Nauseam
22%inclusion2 decks9 decks
20%synergy
Sacrifice
11%inclusion1 decks9 decks
10%synergy
Ephemerate
11%inclusion1 decks9 decks
7%synergy
Orim's Chant
11%inclusion1 decks9 decks
10%synergy
Spell Snare
11%inclusion1 decks9 decks
11%synergy
Culling the Weak
11%inclusion1 decks9 decks
10%synergy
Strix Serenade
11%inclusion1 decks9 decks
8%synergy
Rain of Filth
11%inclusion1 decks9 decks
11%synergy
Sink into Stupor
11%inclusion1 decks9 decks
-2%synergy
Miscast
11%inclusion1 decks9 decks
10%synergy
Sorceries
Imperial Seal
89%inclusion8 decks9 decks
82%synergy
Sevinne's Reclamation
67%inclusion6 decks9 decks
58%synergy
Lively Dirge
56%inclusion5 decks9 decks
54%synergy
Demonic Counsel
44%inclusion4 decks9 decks
43%synergy
Reanimate
44%inclusion4 decks9 decks
28%synergy
Windfall
22%inclusion2 decks9 decks
9%synergy
Beseech the Mirror
22%inclusion2 decks9 decks
18%synergy
Diabolic Intent
11%inclusion1 decks9 decks
6%synergy
Unmarked Grave
11%inclusion1 decks9 decks
10%synergy
Gitaxian Probe
11%inclusion1 decks9 decks
9%synergy
Yawgmoth's Will
11%inclusion1 decks9 decks
10%synergy
Praetor's Grasp
11%inclusion1 decks9 decks
8%synergy
Toxic Deluge
11%inclusion1 decks9 decks
-8%synergy
Dark Deal
11%inclusion1 decks9 decks
10%synergy
Timetwister
11%inclusion1 decks9 decks
10%synergy
Utility Artifacts
The One Ring
67%inclusion6 decks9 decks
53%synergy
Wishclaw Talisman
67%inclusion6 decks9 decks
59%synergy
Vexing Bauble
22%inclusion2 decks9 decks
20%synergy
Sensei's Divining Top
11%inclusion1 decks9 decks
1%synergy
Agatha's Soul Cauldron
11%inclusion1 decks9 decks
11%synergy
Imposter Mech
11%inclusion1 decks9 decks
9%synergy
Enchantments
Rhystic Study
89%inclusion8 decks9 decks
58%synergy
Chains of Mephistopheles
89%inclusion8 decks9 decks
89%synergy
Blind Obedience
67%inclusion6 decks9 decks
55%synergy
Copy Artifact
67%inclusion6 decks9 decks
66%synergy
Steal Enchantment
56%inclusion5 decks9 decks
55%synergy
Mirrormade
56%inclusion5 decks9 decks
46%synergy
Amphibian Downpour
56%inclusion5 decks9 decks
51%synergy
Counterbalance
44%inclusion4 decks9 decks
43%synergy
The Meathook Massacre
44%inclusion4 decks9 decks
41%synergy
Touch the Spirit Realm
44%inclusion4 decks9 decks
42%synergy
Necropotence
44%inclusion4 decks9 decks
38%synergy
Static Prison
44%inclusion4 decks9 decks
44%synergy
Teval's Judgment
40%inclusion2 decks5 decks
39%synergy
Founding the Third Path
33%inclusion3 decks9 decks
33%synergy
Ripples of Undeath
22%inclusion2 decks9 decks
20%synergy
Monologue Tax
22%inclusion2 decks9 decks
16%synergy
Trouble in Pairs
22%inclusion2 decks9 decks
17%synergy
Waste Not
11%inclusion1 decks9 decks
11%synergy
Black Market Connections
11%inclusion1 decks9 decks
-3%synergy
Planeswalkers
Teferi, Time Raveler
33%inclusion3 decks9 decks
25%synergy
Tezzeret, Cruel Captain
20%inclusion1 decks5 decks
18%synergy
Utility Lands
Otawara, Soaring City
100%inclusion9 decks9 decks
81%synergy
Urza's Saga
22%inclusion2 decks9 decks
10%synergy
Emergence Zone
22%inclusion2 decks9 decks
20%synergy
Cephalid Coliseum
22%inclusion2 decks9 decks
19%synergy
City of Traitors
22%inclusion2 decks9 decks
21%synergy
Wasteland
11%inclusion1 decks9 decks
10%synergy
Minamo, School at Water's Edge
11%inclusion1 decks9 decks
7%synergy
Phyrexian Tower
11%inclusion1 decks9 decks
7%synergy
Serra's Sanctum
11%inclusion1 decks9 decks
9%synergy
Bazaar of Baghdad
11%inclusion1 decks9 decks
11%synergy
Saprazzan Skerry
11%inclusion1 decks9 decks
11%synergy
Mana Artifacts
Arcane Signet
100%inclusion9 decks9 decks
12%synergy
Sol Ring
100%inclusion9 decks9 decks
10%synergy
Lotus Petal
89%inclusion8 decks9 decks
78%synergy
Lion's Eye Diamond
89%inclusion8 decks9 decks
87%synergy
Talisman of Dominance
78%inclusion7 decks9 decks
28%synergy
Mox Opal
78%inclusion7 decks9 decks
69%synergy
Talisman of Progress
56%inclusion5 decks9 decks
12%synergy
Grim Monolith
56%inclusion5 decks9 decks
52%synergy
Fellwar Stone
56%inclusion5 decks9 decks
22%synergy
Mox Amber
22%inclusion2 decks9 decks
16%synergy
Talisman of Hierarchy
22%inclusion2 decks9 decks
-22%synergy
Springleaf Drum
11%inclusion1 decks9 decks
9%synergy
Lands
Tundra
100%inclusion9 decks9 decks
84%synergy
Command Tower
100%inclusion9 decks9 decks
7%synergy
Underground Sea
100%inclusion9 decks9 decks
84%synergy
Godless Shrine
100%inclusion9 decks9 decks
49%synergy
Gemstone Caverns
100%inclusion9 decks9 decks
92%synergy
Scrubland
100%inclusion9 decks9 decks
84%synergy
Mana Confluence
100%inclusion9 decks9 decks
86%synergy
Marsh Flats
100%inclusion9 decks9 decks
64%synergy
Polluted Delta
100%inclusion9 decks9 decks
62%synergy
Hallowed Fountain
100%inclusion9 decks9 decks
50%synergy
City of Brass
100%inclusion9 decks9 decks
85%synergy
Flooded Strand
100%inclusion9 decks9 decks
62%synergy
Bloodstained Mire
100%inclusion9 decks9 decks
89%synergy
Watery Grave
100%inclusion9 decks9 decks
49%synergy
Morphic Pool
89%inclusion8 decks9 decks
55%synergy
Undercity Sewers
78%inclusion7 decks9 decks
63%synergy
Misty Rainforest
78%inclusion7 decks9 decks
67%synergy
Windswept Heath
78%inclusion7 decks9 decks
68%synergy
Verdant Catacombs
78%inclusion7 decks9 decks
68%synergy
Arid Mesa
78%inclusion7 decks9 decks
68%synergy
Scalding Tarn
78%inclusion7 decks9 decks
67%synergy
Exotic Orchard
67%inclusion6 decks9 decks
8%synergy
Vault of Champions
67%inclusion6 decks9 decks
34%synergy
Sea of Clouds
56%inclusion5 decks9 decks
20%synergy
Starting Town
40%inclusion2 decks5 decks
36%synergy
Swamp
22%inclusion2 decks9 decks
-69%synergy
Island
22%inclusion2 decks9 decks
-71%synergy
Meticulous Archive
22%inclusion2 decks9 decks
8%synergy
Gemstone Mine
11%inclusion1 decks9 decks
11%synergy
Shadowy Backstreet
11%inclusion1 decks9 decks
-1%synergy
Spire of Industry
11%inclusion1 decks9 decks
3%synergy
Tarnished Citadel
11%inclusion1 decks9 decks
10%synergy
Cavern of Souls
11%inclusion1 decks9 decks
4%synergy
Plains
11%inclusion1 decks9 decks
-81%synergy
Sink into Stupor
11%inclusion1 decks9 decks
-2%synergy
Forbidden Orchard
11%inclusion1 decks9 decks
9%synergy
Gloomlake Verge
11%inclusion1 decks9 decks
0%synergy
Silent Clearing
11%inclusion1 decks9 decks
9%synergy
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