The Master of Keys (Commander) - Expensive Optimized Control

The Master of Keys
Rank #314
2decks
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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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Utility Lands
Mana Artifacts
Lands
Back to Top
Smothering Tithe
100%inclusion2 decks2 decks
68%synergy
Imperial Seal
100%inclusion2 decks2 decks
92%synergy
Thassa's Oracle
100%inclusion2 decks2 decks
90%synergy
Rhystic Study
100%inclusion2 decks2 decks
68%synergy
Mana Vault
100%inclusion2 decks2 decks
91%synergy
Demonic Tutor
100%inclusion2 decks2 decks
79%synergy
Necropotence
100%inclusion2 decks2 decks
93%synergy
Enlightened Tutor
100%inclusion2 decks2 decks
80%synergy
Chrome Mox
100%inclusion2 decks2 decks
90%synergy
Vampiric Tutor
100%inclusion2 decks2 decks
82%synergy
Creatures
Displacer Kitten
100%inclusion2 decks2 decks
93%synergy
Esper Sentinel
100%inclusion2 decks2 decks
72%synergy
Abdel Adrian, Gorion's Ward
100%inclusion2 decks2 decks
98%synergy
Opposition Agent
50%inclusion1 decks2 decks
41%synergy
Bruvac the Grandiloquent
50%inclusion1 decks2 decks
49%synergy
Roaming Throne
50%inclusion1 decks2 decks
43%synergy
Valley Floodcaller
50%inclusion1 decks2 decks
46%synergy
Inquisitive Glimmer
50%inclusion1 decks2 decks
42%synergy
Demon of Fate's Design
50%inclusion1 decks2 decks
45%synergy
Overlord of the Balemurk
50%inclusion1 decks2 decks
48%synergy
Barrowgoyf
50%inclusion1 decks2 decks
50%synergy
Mesa Enchantress
50%inclusion1 decks2 decks
41%synergy
Golgari Thug
50%inclusion1 decks2 decks
50%synergy
Drannith Magistrate
50%inclusion1 decks2 decks
42%synergy
Mockingbird
50%inclusion1 decks2 decks
46%synergy
Hullbreaker Horror
50%inclusion1 decks2 decks
44%synergy
Stinkweed Imp
50%inclusion1 decks2 decks
50%synergy
Braids, Arisen Nightmare
50%inclusion1 decks2 decks
49%synergy
Orcish Bowmasters
50%inclusion1 decks2 decks
39%synergy
Dauthi Voidwalker
50%inclusion1 decks2 decks
44%synergy
Faerie Mastermind
50%inclusion1 decks2 decks
40%synergy
Grand Abolisher
50%inclusion1 decks2 decks
35%synergy
Entity Tracker
50%inclusion1 decks2 decks
44%synergy
Instants
Swords to Plowshares
100%inclusion2 decks2 decks
32%synergy
Mystical Tutor
100%inclusion2 decks2 decks
88%synergy
Entomb
100%inclusion2 decks2 decks
93%synergy
Muddle the Mixture
50%inclusion1 decks2 decks
46%synergy
Teferi's Protection
50%inclusion1 decks2 decks
33%synergy
Mental Misstep
50%inclusion1 decks2 decks
43%synergy
An Offer You Can't Refuse
50%inclusion1 decks2 decks
23%synergy
Retraction Helix
50%inclusion1 decks2 decks
49%synergy
Intuition
50%inclusion1 decks2 decks
48%synergy
Dark Ritual
50%inclusion1 decks2 decks
31%synergy
Gifts Ungiven
50%inclusion1 decks2 decks
48%synergy
Cabal Ritual
50%inclusion1 decks2 decks
47%synergy
Culling the Weak
50%inclusion1 decks2 decks
48%synergy
Angel's Grace
50%inclusion1 decks2 decks
47%synergy
Mana Drain
50%inclusion1 decks2 decks
33%synergy
Flusterstorm
50%inclusion1 decks2 decks
42%synergy
Silence
50%inclusion1 decks2 decks
40%synergy
Into the Flood Maw
50%inclusion1 decks2 decks
46%synergy
Force of Will
50%inclusion1 decks2 decks
37%synergy
Ad Nauseam
50%inclusion1 decks2 decks
48%synergy
Demonic Consultation
50%inclusion1 decks2 decks
42%synergy
Borne Upon a Wind
50%inclusion1 decks2 decks
45%synergy
Fierce Guardianship
50%inclusion1 decks2 decks
29%synergy
Narset's Reversal
50%inclusion1 decks2 decks
49%synergy
Path to Exile
50%inclusion1 decks2 decks
8%synergy
Cyclonic Rift
50%inclusion1 decks2 decks
25%synergy
Tainted Pact
50%inclusion1 decks2 decks
42%synergy
Dispel
50%inclusion1 decks2 decks
46%synergy
Swan Song
50%inclusion1 decks2 decks
30%synergy
Force of Negation
50%inclusion1 decks2 decks
38%synergy
Sorceries
Sevinne's Reclamation
100%inclusion2 decks2 decks
91%synergy
Windfall
50%inclusion1 decks2 decks
36%synergy
Yawgmoth's Will
50%inclusion1 decks2 decks
49%synergy
Cut Your Losses
50%inclusion1 decks2 decks
50%synergy
Idyllic Tutor
50%inclusion1 decks2 decks
46%synergy
Reanimate
50%inclusion1 decks2 decks
34%synergy
Mnemonic Betrayal
50%inclusion1 decks2 decks
47%synergy
Traumatize
50%inclusion1 decks2 decks
50%synergy
Grim Tutor
50%inclusion1 decks2 decks
46%synergy
Utility Artifacts
Mesmeric Orb
50%inclusion1 decks2 decks
49%synergy
The One Ring
50%inclusion1 decks2 decks
36%synergy
Wishclaw Talisman
50%inclusion1 decks2 decks
42%synergy
Manifold Key
50%inclusion1 decks2 decks
49%synergy
Enchantments
Necromancy
100%inclusion2 decks2 decks
95%synergy
Mystic Remora
100%inclusion2 decks2 decks
79%synergy
Animate Dead
100%inclusion2 decks2 decks
90%synergy
The Meathook Massacre
50%inclusion1 decks2 decks
47%synergy
Treacherous Blessing
50%inclusion1 decks2 decks
50%synergy
Ripples of Undeath
50%inclusion1 decks2 decks
47%synergy
Tinybones Joins Up
50%inclusion1 decks2 decks
49%synergy
Mind Over Matter
50%inclusion1 decks2 decks
50%synergy
Induced Amnesia
50%inclusion1 decks2 decks
50%synergy
Mirrormade
50%inclusion1 decks2 decks
40%synergy
Starfield of Nyx
50%inclusion1 decks2 decks
46%synergy
All That Glitters
50%inclusion1 decks2 decks
41%synergy
Hatching Plans
50%inclusion1 decks2 decks
50%synergy
Black Market Connections
50%inclusion1 decks2 decks
36%synergy
Land Tax
50%inclusion1 decks2 decks
44%synergy
Ghostly Prison
50%inclusion1 decks2 decks
28%synergy
Propaganda
50%inclusion1 decks2 decks
23%synergy
Phyrexian Arena
50%inclusion1 decks2 decks
36%synergy
Standstill
50%inclusion1 decks2 decks
50%synergy
Court of Cunning
50%inclusion1 decks2 decks
49%synergy
Out of the Tombs
50%inclusion1 decks2 decks
50%synergy
Touch the Spirit Realm
50%inclusion1 decks2 decks
47%synergy
Blind Obedience
50%inclusion1 decks2 decks
38%synergy
Cemetery Tampering
50%inclusion1 decks2 decks
49%synergy
Planeswalkers
Teferi, Time Raveler
100%inclusion2 decks2 decks
92%synergy
Aminatou, the Fateshifter
50%inclusion1 decks2 decks
47%synergy
Utility Lands
Urza's Saga
100%inclusion2 decks2 decks
88%synergy
Ancient Tomb
100%inclusion2 decks2 decks
87%synergy
Tyrite Sanctum
50%inclusion1 decks2 decks
50%synergy
Cathedral of War
50%inclusion1 decks2 decks
50%synergy
Emergence Zone
50%inclusion1 decks2 decks
48%synergy
Urborg, Tomb of Yawgmoth
50%inclusion1 decks2 decks
37%synergy
Rogue's Passage
50%inclusion1 decks2 decks
41%synergy
Minamo, School at Water's Edge
50%inclusion1 decks2 decks
46%synergy
Mana Artifacts
Talisman of Progress
100%inclusion2 decks2 decks
57%synergy
Arcane Signet
100%inclusion2 decks2 decks
12%synergy
Talisman of Dominance
100%inclusion2 decks2 decks
51%synergy
Sol Ring
100%inclusion2 decks2 decks
10%synergy
Talisman of Hierarchy
100%inclusion2 decks2 decks
57%synergy
Grim Monolith
50%inclusion1 decks2 decks
46%synergy
Lotus Petal
50%inclusion1 decks2 decks
39%synergy
Dimir Signet
50%inclusion1 decks2 decks
18%synergy
Mox Opal
50%inclusion1 decks2 decks
41%synergy
Azorius Signet
50%inclusion1 decks2 decks
18%synergy
Mox Diamond
50%inclusion1 decks2 decks
43%synergy
Orzhov Signet
50%inclusion1 decks2 decks
16%synergy
Lands
Tundra
100%inclusion2 decks2 decks
84%synergy
Underground Sea
100%inclusion2 decks2 decks
84%synergy
Godless Shrine
100%inclusion2 decks2 decks
50%synergy
Scrubland
100%inclusion2 decks2 decks
84%synergy
Marsh Flats
100%inclusion2 decks2 decks
64%synergy
Polluted Delta
100%inclusion2 decks2 decks
62%synergy
Hallowed Fountain
100%inclusion2 decks2 decks
51%synergy
Flooded Strand
100%inclusion2 decks2 decks
62%synergy
Watery Grave
100%inclusion2 decks2 decks
50%synergy
Command Tower
100%inclusion2 decks2 decks
8%synergy
Undercity Sewers
50%inclusion1 decks2 decks
36%synergy
Brightclimb Pathway
50%inclusion1 decks2 decks
43%synergy
Bleachbone Verge
50%inclusion1 decks2 decks
42%synergy
Hengegate Pathway
50%inclusion1 decks2 decks
44%synergy
Swamp
50%inclusion1 decks2 decks
-41%synergy
Snow-Covered Island
50%inclusion1 decks2 decks
47%synergy
Sea of Clouds
50%inclusion1 decks2 decks
14%synergy
Verdant Catacombs
50%inclusion1 decks2 decks
40%synergy
Raffine's Tower
50%inclusion1 decks2 decks
9%synergy
Cavern of Souls
50%inclusion1 decks2 decks
43%synergy
Snow-Covered Plains
50%inclusion1 decks2 decks
47%synergy
Island
50%inclusion1 decks2 decks
-43%synergy
Plains
50%inclusion1 decks2 decks
-41%synergy
Morphic Pool
50%inclusion1 decks2 decks
16%synergy
Meticulous Archive
50%inclusion1 decks2 decks
36%synergy
Mana Confluence
50%inclusion1 decks2 decks
36%synergy
Gloomlake Verge
50%inclusion1 decks2 decks
39%synergy
Snow-Covered Swamp
50%inclusion1 decks2 decks
47%synergy
Vault of Champions
50%inclusion1 decks2 decks
17%synergy
City of Brass
50%inclusion1 decks2 decks
35%synergy
Bloodstained Mire
50%inclusion1 decks2 decks
39%synergy
Clearwater Pathway
50%inclusion1 decks2 decks
43%synergy
Shadowy Backstreet
50%inclusion1 decks2 decks
38%synergy
Caves of Koilos
50%inclusion1 decks2 decks
15%synergy
Underground River
50%inclusion1 decks2 decks
17%synergy
Gemstone Caverns
50%inclusion1 decks2 decks
42%synergy
Adarkar Wastes
50%inclusion1 decks2 decks
19%synergy
Floodfarm Verge
50%inclusion1 decks2 decks
39%synergy
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