The Master of Keys (Commander) - Expensive Optimized Control

The Master of Keys
Rank #304
3decks
As CommanderAs CardAverage DeckDecksView Precon
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Budget
Any$$$$
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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Archidekt
Commander Spellbook
Moxfield
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Creatures
Instants
Sorceries
Utility Artifacts
Enchantments
Planeswalkers
Utility Lands
Mana Artifacts
Lands
Back to Top
Smothering Tithe
100%inclusion3 decks3 decks
70%synergy
Thassa's Oracle
100%inclusion3 decks3 decks
91%synergy
Ancient Tomb
100%inclusion3 decks3 decks
88%synergy
Intuition
100%inclusion3 decks3 decks
98%synergy
Rhystic Study
100%inclusion3 decks3 decks
70%synergy
Demonic Tutor
100%inclusion3 decks3 decks
80%synergy
Necropotence
100%inclusion3 decks3 decks
94%synergy
Enlightened Tutor
100%inclusion3 decks3 decks
81%synergy
Vampiric Tutor
100%inclusion3 decks3 decks
83%synergy
Teferi's Protection
67%inclusion2 decks3 decks
51%synergy
Creatures
Esper Sentinel
100%inclusion3 decks3 decks
73%synergy
Abdel Adrian, Gorion's Ward
100%inclusion3 decks3 decks
98%synergy
Displacer Kitten
67%inclusion2 decks3 decks
60%synergy
Inquisitive Glimmer
67%inclusion2 decks3 decks
60%synergy
Demon of Fate's Design
67%inclusion2 decks3 decks
61%synergy
Entity Tracker
67%inclusion2 decks3 decks
61%synergy
Archivist of Oghma
33%inclusion1 decks3 decks
27%synergy
Lotho, Corrupt Shirriff
33%inclusion1 decks3 decks
16%synergy
Scrabbling Skullcrab
33%inclusion1 decks3 decks
32%synergy
Syr Konrad, the Grim
33%inclusion1 decks3 decks
28%synergy
Hoarding Broodlord
33%inclusion1 decks3 decks
32%synergy
Bruvac the Grandiloquent
33%inclusion1 decks3 decks
33%synergy
Gravebreaker Lamia
33%inclusion1 decks3 decks
32%synergy
Sheoldred, the Apocalypse
33%inclusion1 decks3 decks
24%synergy
Roaming Throne
33%inclusion1 decks3 decks
27%synergy
Lurrus of the Dream-Den
33%inclusion1 decks3 decks
32%synergy
Valley Floodcaller
33%inclusion1 decks3 decks
30%synergy
Overlord of the Balemurk
33%inclusion1 decks3 decks
32%synergy
Barrowgoyf
33%inclusion1 decks3 decks
33%synergy
Gilded Drake
33%inclusion1 decks3 decks
32%synergy
Leonin Relic-Warder
33%inclusion1 decks3 decks
33%synergy
Mesa Enchantress
33%inclusion1 decks3 decks
25%synergy
Sheoldred, Whispering One
33%inclusion1 decks3 decks
29%synergy
Golgari Thug
33%inclusion1 decks3 decks
33%synergy
Archon of Cruelty
33%inclusion1 decks3 decks
29%synergy
Drannith Magistrate
33%inclusion1 decks3 decks
26%synergy
Grand Abolisher
33%inclusion1 decks3 decks
19%synergy
Hullbreaker Horror
33%inclusion1 decks3 decks
27%synergy
Stinkweed Imp
33%inclusion1 decks3 decks
33%synergy
Braids, Arisen Nightmare
33%inclusion1 decks3 decks
32%synergy
Ledger Shredder
33%inclusion1 decks3 decks
25%synergy
Orcish Bowmasters
33%inclusion1 decks3 decks
23%synergy
Jin-Gitaxias, Core Augur
33%inclusion1 decks3 decks
30%synergy
Instants
Entomb
100%inclusion3 decks3 decks
93%synergy
Swords to Plowshares
100%inclusion3 decks3 decks
32%synergy
Silence
67%inclusion2 decks3 decks
57%synergy
Force of Will
67%inclusion2 decks3 decks
54%synergy
Force of Negation
67%inclusion2 decks3 decks
55%synergy
Fierce Guardianship
67%inclusion2 decks3 decks
46%synergy
Path to Exile
67%inclusion2 decks3 decks
24%synergy
Mystical Tutor
67%inclusion2 decks3 decks
56%synergy
Frantic Search
33%inclusion1 decks3 decks
15%synergy
Mental Misstep
33%inclusion1 decks3 decks
27%synergy
Dovin's Veto
33%inclusion1 decks3 decks
7%synergy
Chain of Vapor
33%inclusion1 decks3 decks
30%synergy
An Offer You Can't Refuse
33%inclusion1 decks3 decks
6%synergy
Flare of Denial
33%inclusion1 decks3 decks
31%synergy
Brain Freeze
33%inclusion1 decks3 decks
33%synergy
Dark Ritual
33%inclusion1 decks3 decks
13%synergy
Gifts Ungiven
33%inclusion1 decks3 decks
31%synergy
Cabal Ritual
33%inclusion1 decks3 decks
30%synergy
Thirst for Meaning
33%inclusion1 decks3 decks
32%synergy
Void Rend
33%inclusion1 decks3 decks
-1%synergy
Flusterstorm
33%inclusion1 decks3 decks
26%synergy
Swan Song
33%inclusion1 decks3 decks
13%synergy
Demonic Consultation
33%inclusion1 decks3 decks
26%synergy
Sink into Stupor
33%inclusion1 decks3 decks
20%synergy
Borne Upon a Wind
33%inclusion1 decks3 decks
28%synergy
Cyclonic Rift
33%inclusion1 decks3 decks
11%synergy
Saw in Half
33%inclusion1 decks3 decks
31%synergy
Sorceries
Toxic Deluge
67%inclusion2 decks3 decks
47%synergy
Windfall
33%inclusion1 decks3 decks
20%synergy
Imperial Seal
33%inclusion1 decks3 decks
26%synergy
Sevinne's Reclamation
33%inclusion1 decks3 decks
24%synergy
Replenish
33%inclusion1 decks3 decks
32%synergy
Cut Your Losses
33%inclusion1 decks3 decks
33%synergy
Glimpse the Unthinkable
33%inclusion1 decks3 decks
33%synergy
Idyllic Tutor
33%inclusion1 decks3 decks
29%synergy
Buried Alive
33%inclusion1 decks3 decks
29%synergy
Reanimate
33%inclusion1 decks3 decks
17%synergy
Extinguish All Hope
33%inclusion1 decks3 decks
32%synergy
Traumatize
33%inclusion1 decks3 decks
33%synergy
Grim Tutor
33%inclusion1 decks3 decks
29%synergy
Utility Artifacts
Mesmeric Orb
100%inclusion3 decks3 decks
99%synergy
The One Ring
67%inclusion2 decks3 decks
54%synergy
Wishclaw Talisman
33%inclusion1 decks3 decks
26%synergy
Altar of the Brood
33%inclusion1 decks3 decks
32%synergy
Enchantments
Necromancy
100%inclusion3 decks3 decks
96%synergy
Mystic Remora
100%inclusion3 decks3 decks
80%synergy
Animate Dead
100%inclusion3 decks3 decks
90%synergy
Cemetery Tampering
67%inclusion2 decks3 decks
66%synergy
Dress Down
67%inclusion2 decks3 decks
64%synergy
Ghostly Prison
67%inclusion2 decks3 decks
44%synergy
Dance of the Dead
33%inclusion1 decks3 decks
31%synergy
Treacherous Blessing
33%inclusion1 decks3 decks
33%synergy
Court of Cunning
33%inclusion1 decks3 decks
32%synergy
Ripples of Undeath
33%inclusion1 decks3 decks
31%synergy
Tinybones Joins Up
33%inclusion1 decks3 decks
32%synergy
Out of the Tombs
33%inclusion1 decks3 decks
33%synergy
Soul Snare
33%inclusion1 decks3 decks
33%synergy
Mind Over Matter
33%inclusion1 decks3 decks
33%synergy
Induced Amnesia
33%inclusion1 decks3 decks
33%synergy
Lich's Mastery
33%inclusion1 decks3 decks
32%synergy
Copy Artifact
33%inclusion1 decks3 decks
32%synergy
Starfield of Nyx
33%inclusion1 decks3 decks
29%synergy
All That Glitters
33%inclusion1 decks3 decks
25%synergy
Seal of Cleansing
33%inclusion1 decks3 decks
32%synergy
Hatching Plans
33%inclusion1 decks3 decks
33%synergy
Polluted Cistern // Dim Oubliette
33%inclusion1 decks3 decks
33%synergy
Black Market Connections
33%inclusion1 decks3 decks
18%synergy
Land Tax
33%inclusion1 decks3 decks
27%synergy
Bloodchief Ascension
33%inclusion1 decks3 decks
27%synergy
Propaganda
33%inclusion1 decks3 decks
4%synergy
Chains of Mephistopheles
33%inclusion1 decks3 decks
33%synergy
Phyrexian Arena
33%inclusion1 decks3 decks
19%synergy
Seal of Removal
33%inclusion1 decks3 decks
33%synergy
Defiled Crypt // Cadaver Lab
33%inclusion1 decks3 decks
33%synergy
Standstill
33%inclusion1 decks3 decks
33%synergy
Planeswalkers
Teferi, Time Raveler
67%inclusion2 decks3 decks
58%synergy
Aminatou, the Fateshifter
33%inclusion1 decks3 decks
31%synergy
Tezzeret, Cruel Captain
33%inclusion1 decks3 decks
31%synergy
Utility Lands
Urza's Saga
67%inclusion2 decks3 decks
55%synergy
Cephalid Coliseum
67%inclusion2 decks3 decks
63%synergy
Hall of Heliod's Generosity
33%inclusion1 decks3 decks
20%synergy
Serra's Sanctum
33%inclusion1 decks3 decks
32%synergy
Tyrite Sanctum
33%inclusion1 decks3 decks
33%synergy
Cathedral of War
33%inclusion1 decks3 decks
33%synergy
Reliquary Tower
33%inclusion1 decks3 decks
-1%synergy
Urborg, Tomb of Yawgmoth
33%inclusion1 decks3 decks
20%synergy
Rogue's Passage
33%inclusion1 decks3 decks
23%synergy
Mana Artifacts
Talisman of Progress
100%inclusion3 decks3 decks
56%synergy
Talisman of Dominance
100%inclusion3 decks3 decks
50%synergy
Sol Ring
100%inclusion3 decks3 decks
10%synergy
Talisman of Hierarchy
100%inclusion3 decks3 decks
55%synergy
Arcane Signet
67%inclusion2 decks3 decks
-21%synergy
Basalt Monolith
67%inclusion2 decks3 decks
64%synergy
Mana Vault
67%inclusion2 decks3 decks
58%synergy
Chrome Mox
67%inclusion2 decks3 decks
58%synergy
Grim Monolith
33%inclusion1 decks3 decks
30%synergy
Lotus Petal
33%inclusion1 decks3 decks
23%synergy
Dimir Signet
33%inclusion1 decks3 decks
3%synergy
Fellwar Stone
33%inclusion1 decks3 decks
0%synergy
Springleaf Drum
33%inclusion1 decks3 decks
32%synergy
Mox Opal
33%inclusion1 decks3 decks
25%synergy
Orzhov Signet
33%inclusion1 decks3 decks
2%synergy
Azorius Signet
33%inclusion1 decks3 decks
4%synergy
Lion's Eye Diamond
33%inclusion1 decks3 decks
31%synergy
Mox Diamond
33%inclusion1 decks3 decks
27%synergy
Lands
Tundra
100%inclusion3 decks3 decks
84%synergy
Command Tower
100%inclusion3 decks3 decks
7%synergy
Underground Sea
100%inclusion3 decks3 decks
84%synergy
Sea of Clouds
100%inclusion3 decks3 decks
65%synergy
Raffine's Tower
100%inclusion3 decks3 decks
59%synergy
Scrubland
100%inclusion3 decks3 decks
84%synergy
Marsh Flats
100%inclusion3 decks3 decks
64%synergy
Vault of Champions
100%inclusion3 decks3 decks
68%synergy
Hallowed Fountain
100%inclusion3 decks3 decks
49%synergy
Watery Grave
100%inclusion3 decks3 decks
49%synergy
Brightclimb Pathway
67%inclusion2 decks3 decks
60%synergy
Caves of Koilos
67%inclusion2 decks3 decks
31%synergy
Verdant Catacombs
67%inclusion2 decks3 decks
57%synergy
Godless Shrine
67%inclusion2 decks3 decks
15%synergy
Morphic Pool
67%inclusion2 decks3 decks
33%synergy
Arid Mesa
67%inclusion2 decks3 decks
57%synergy
Mana Confluence
67%inclusion2 decks3 decks
53%synergy
Polluted Delta
67%inclusion2 decks3 decks
29%synergy
Flooded Strand
67%inclusion2 decks3 decks
28%synergy
Bloodstained Mire
67%inclusion2 decks3 decks
56%synergy
Prismatic Vista
33%inclusion1 decks3 decks
29%synergy
Undercity Sewers
33%inclusion1 decks3 decks
19%synergy
Misty Rainforest
33%inclusion1 decks3 decks
23%synergy
Gemstone Mine
33%inclusion1 decks3 decks
33%synergy
Clearwater Pathway
33%inclusion1 decks3 decks
27%synergy
Shadowy Backstreet
33%inclusion1 decks3 decks
21%synergy
Exotic Orchard
33%inclusion1 decks3 decks
-26%synergy
Windswept Heath
33%inclusion1 decks3 decks
24%synergy
Bleachbone Verge
33%inclusion1 decks3 decks
25%synergy
Hengegate Pathway
33%inclusion1 decks3 decks
27%synergy
Swamp
33%inclusion1 decks3 decks
-59%synergy
Snow-Covered Island
33%inclusion1 decks3 decks
30%synergy
Shipwreck Marsh
33%inclusion1 decks3 decks
13%synergy
Reflecting Pool
33%inclusion1 decks3 decks
25%synergy
Underground River
33%inclusion1 decks3 decks
-2%synergy
Cavern of Souls
33%inclusion1 decks3 decks
27%synergy
Snow-Covered Plains
33%inclusion1 decks3 decks
31%synergy
Island
33%inclusion1 decks3 decks
-60%synergy
Plains
33%inclusion1 decks3 decks
-59%synergy
Sink into Stupor
33%inclusion1 decks3 decks
20%synergy
Gemstone Caverns
33%inclusion1 decks3 decks
26%synergy
Shattered Sanctum
33%inclusion1 decks3 decks
16%synergy
Scalding Tarn
33%inclusion1 decks3 decks
23%synergy
Meticulous Archive
33%inclusion1 decks3 decks
19%synergy
Adarkar Wastes
33%inclusion1 decks3 decks
1%synergy
Gloomlake Verge
33%inclusion1 decks3 decks
22%synergy
Snow-Covered Swamp
33%inclusion1 decks3 decks
31%synergy
Deserted Beach
33%inclusion1 decks3 decks
13%synergy
Floodfarm Verge
33%inclusion1 decks3 decks
22%synergy
City of Brass
33%inclusion1 decks3 decks
18%synergy
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