The Master of Keys (Commander) - Expensive Optimized Combo

The Master of Keys
Rank #316
3decks
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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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Commander Spellbook
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Instants
Sorceries
Utility Artifacts
Enchantments
Utility Lands
Mana Artifacts
Lands
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Smothering Tithe
100%inclusion3 decks3 decks
68%synergy
Ancient Tomb
100%inclusion3 decks3 decks
87%synergy
Rhystic Study
100%inclusion3 decks3 decks
67%synergy
Demonic Tutor
100%inclusion3 decks3 decks
78%synergy
Force of Will
100%inclusion3 decks3 decks
87%synergy
Enlightened Tutor
100%inclusion3 decks3 decks
80%synergy
Orcish Bowmasters
100%inclusion3 decks3 decks
89%synergy
Chrome Mox
100%inclusion3 decks3 decks
90%synergy
Vampiric Tutor
100%inclusion3 decks3 decks
82%synergy
Mox Diamond
100%inclusion3 decks3 decks
93%synergy
Creatures
Lotho, Corrupt Shirriff
100%inclusion3 decks3 decks
83%synergy
Valley Floodcaller
100%inclusion3 decks3 decks
96%synergy
Esper Sentinel
100%inclusion3 decks3 decks
72%synergy
Abdel Adrian, Gorion's Ward
100%inclusion3 decks3 decks
98%synergy
Ranger-Captain of Eos
100%inclusion3 decks3 decks
93%synergy
Thassa's Oracle
67%inclusion2 decks3 decks
57%synergy
Opposition Agent
67%inclusion2 decks3 decks
58%synergy
Snapcaster Mage
67%inclusion2 decks3 decks
65%synergy
Lurrus of the Dream-Den
67%inclusion2 decks3 decks
65%synergy
Hedron Crab
67%inclusion2 decks3 decks
66%synergy
Voice of Victory
67%inclusion2 decks3 decks
58%synergy
Mockingbird
67%inclusion2 decks3 decks
62%synergy
Grand Abolisher
67%inclusion2 decks3 decks
52%synergy
Auriok Salvagers
67%inclusion2 decks3 decks
66%synergy
Archivist of Oghma
33%inclusion1 decks3 decks
27%synergy
Displacer Kitten
33%inclusion1 decks3 decks
26%synergy
Sheoldred, the Apocalypse
33%inclusion1 decks3 decks
25%synergy
Leonin Relic-Warder
33%inclusion1 decks3 decks
33%synergy
Pollywog Prodigy
33%inclusion1 decks3 decks
29%synergy
Talion, the Kindly Lord
33%inclusion1 decks3 decks
25%synergy
Drannith Magistrate
33%inclusion1 decks3 decks
25%synergy
Grim Guardian
33%inclusion1 decks3 decks
31%synergy
Hullbreaker Horror
33%inclusion1 decks3 decks
27%synergy
Psychic Frog
33%inclusion1 decks3 decks
27%synergy
Ledger Shredder
33%inclusion1 decks3 decks
24%synergy
Ghostly Pilferer
33%inclusion1 decks3 decks
26%synergy
Instants
Mental Misstep
100%inclusion3 decks3 decks
93%synergy
Entomb
100%inclusion3 decks3 decks
93%synergy
Mindbreak Trap
100%inclusion3 decks3 decks
93%synergy
Dark Ritual
100%inclusion3 decks3 decks
81%synergy
Cabal Ritual
100%inclusion3 decks3 decks
97%synergy
Flusterstorm
100%inclusion3 decks3 decks
92%synergy
Silence
100%inclusion3 decks3 decks
90%synergy
Swan Song
100%inclusion3 decks3 decks
81%synergy
Force of Negation
100%inclusion3 decks3 decks
88%synergy
Swords to Plowshares
100%inclusion3 decks3 decks
32%synergy
Pact of Negation
100%inclusion3 decks3 decks
92%synergy
Retraction Helix
67%inclusion2 decks3 decks
66%synergy
Into the Flood Maw
67%inclusion2 decks3 decks
63%synergy
Demonic Consultation
67%inclusion2 decks3 decks
58%synergy
Borne Upon a Wind
67%inclusion2 decks3 decks
62%synergy
Fierce Guardianship
67%inclusion2 decks3 decks
46%synergy
Cyclonic Rift
67%inclusion2 decks3 decks
42%synergy
Mystical Tutor
67%inclusion2 decks3 decks
55%synergy
Deadly Rollick
33%inclusion1 decks3 decks
20%synergy
Tainted Pact
33%inclusion1 decks3 decks
26%synergy
An Offer You Can't Refuse
33%inclusion1 decks3 decks
7%synergy
Snuff Out
33%inclusion1 decks3 decks
26%synergy
Intuition
33%inclusion1 decks3 decks
32%synergy
Brain Freeze
33%inclusion1 decks3 decks
33%synergy
Gifts Ungiven
33%inclusion1 decks3 decks
31%synergy
Darkblast
33%inclusion1 decks3 decks
33%synergy
Banishing Knack
33%inclusion1 decks3 decks
33%synergy
Sink into Stupor
33%inclusion1 decks3 decks
21%synergy
Path to Exile
33%inclusion1 decks3 decks
-9%synergy
Sorceries
Sevinne's Reclamation
100%inclusion3 decks3 decks
91%synergy
Imperial Seal
67%inclusion2 decks3 decks
59%synergy
Cabal Therapy
33%inclusion1 decks3 decks
33%synergy
Diabolic Intent
33%inclusion1 decks3 decks
28%synergy
Lively Dirge
33%inclusion1 decks3 decks
32%synergy
Unmarked Grave
33%inclusion1 decks3 decks
32%synergy
Demonic Counsel
33%inclusion1 decks3 decks
32%synergy
Reanimate
33%inclusion1 decks3 decks
17%synergy
Beseech the Mirror
33%inclusion1 decks3 decks
29%synergy
Nuclear Fallout
33%inclusion1 decks3 decks
33%synergy
Utility Artifacts
The One Ring
67%inclusion2 decks3 decks
53%synergy
Wishclaw Talisman
67%inclusion2 decks3 decks
58%synergy
Sensei's Divining Top
33%inclusion1 decks3 decks
23%synergy
Altar of the Brood
33%inclusion1 decks3 decks
32%synergy
Enchantments
Dance of the Dead
100%inclusion3 decks3 decks
98%synergy
Tinybones Joins Up
100%inclusion3 decks3 decks
99%synergy
Necromancy
100%inclusion3 decks3 decks
95%synergy
Mystic Remora
100%inclusion3 decks3 decks
78%synergy
Animate Dead
100%inclusion3 decks3 decks
90%synergy
Dress Down
100%inclusion3 decks3 decks
97%synergy
The Meathook Massacre
67%inclusion2 decks3 decks
63%synergy
Ripples of Undeath
67%inclusion2 decks3 decks
64%synergy
Touch the Spirit Realm
67%inclusion2 decks3 decks
64%synergy
Blind Obedience
67%inclusion2 decks3 decks
54%synergy
Copy Artifact
67%inclusion2 decks3 decks
66%synergy
Static Prison
67%inclusion2 decks3 decks
66%synergy
Counterbalance
33%inclusion1 decks3 decks
32%synergy
Founding the Third Path
33%inclusion1 decks3 decks
33%synergy
Hopeless Nightmare
33%inclusion1 decks3 decks
33%synergy
Mirrormade
33%inclusion1 decks3 decks
23%synergy
Necropotence
33%inclusion1 decks3 decks
26%synergy
Amphibian Downpour
33%inclusion1 decks3 decks
29%synergy
Chthonian Nightmare
33%inclusion1 decks3 decks
33%synergy
Stillness in Motion
33%inclusion1 decks3 decks
33%synergy
Chains of Mephistopheles
33%inclusion1 decks3 decks
33%synergy
Utility Lands
Emergence Zone
67%inclusion2 decks3 decks
64%synergy
Otawara, Soaring City
67%inclusion2 decks3 decks
48%synergy
Mistrise Village
33%inclusion1 decks3 decks
30%synergy
Serra's Sanctum
33%inclusion1 decks3 decks
32%synergy
Urza's Saga
33%inclusion1 decks3 decks
21%synergy
Cephalid Coliseum
33%inclusion1 decks3 decks
30%synergy
City of Traitors
33%inclusion1 decks3 decks
32%synergy
Mana Artifacts
Arcane Signet
100%inclusion3 decks3 decks
12%synergy
Lotus Petal
100%inclusion3 decks3 decks
89%synergy
Talisman of Dominance
100%inclusion3 decks3 decks
51%synergy
Sol Ring
100%inclusion3 decks3 decks
10%synergy
Mox Opal
100%inclusion3 decks3 decks
91%synergy
Talisman of Progress
67%inclusion2 decks3 decks
24%synergy
Mana Vault
67%inclusion2 decks3 decks
57%synergy
Mox Amber
67%inclusion2 decks3 decks
61%synergy
Fellwar Stone
67%inclusion2 decks3 decks
32%synergy
Lion's Eye Diamond
67%inclusion2 decks3 decks
64%synergy
Lands
Tundra
100%inclusion3 decks3 decks
84%synergy
Command Tower
100%inclusion3 decks3 decks
8%synergy
Undercity Sewers
100%inclusion3 decks3 decks
86%synergy
Misty Rainforest
100%inclusion3 decks3 decks
89%synergy
Underground Sea
100%inclusion3 decks3 decks
84%synergy
Sea of Clouds
100%inclusion3 decks3 decks
64%synergy
Godless Shrine
100%inclusion3 decks3 decks
50%synergy
Morphic Pool
100%inclusion3 decks3 decks
66%synergy
Gemstone Caverns
100%inclusion3 decks3 decks
92%synergy
Arid Mesa
100%inclusion3 decks3 decks
90%synergy
Scrubland
100%inclusion3 decks3 decks
84%synergy
Mana Confluence
100%inclusion3 decks3 decks
86%synergy
Marsh Flats
100%inclusion3 decks3 decks
64%synergy
Polluted Delta
100%inclusion3 decks3 decks
63%synergy
Hallowed Fountain
100%inclusion3 decks3 decks
51%synergy
City of Brass
100%inclusion3 decks3 decks
85%synergy
Flooded Strand
100%inclusion3 decks3 decks
62%synergy
Bloodstained Mire
100%inclusion3 decks3 decks
89%synergy
Watery Grave
100%inclusion3 decks3 decks
50%synergy
Exotic Orchard
67%inclusion2 decks3 decks
8%synergy
Windswept Heath
67%inclusion2 decks3 decks
57%synergy
Verdant Catacombs
67%inclusion2 decks3 decks
56%synergy
Scalding Tarn
67%inclusion2 decks3 decks
55%synergy
Vault of Champions
67%inclusion2 decks3 decks
34%synergy
Shadowy Backstreet
33%inclusion1 decks3 decks
21%synergy
Spire of Industry
33%inclusion1 decks3 decks
25%synergy
Raffine's Tower
33%inclusion1 decks3 decks
-8%synergy
Island
33%inclusion1 decks3 decks
-59%synergy
Sink into Stupor
33%inclusion1 decks3 decks
21%synergy
Meticulous Archive
33%inclusion1 decks3 decks
20%synergy
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