The Master of Keys (Commander) - Budget Upgraded Mill

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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Instants
Sorceries
Utility Artifacts
Enchantments
Utility Lands
Mana Artifacts
Lands
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Rhystic Study
33%inclusion1 decks3 decks
1%synergy
Creatures
Inquisitive Glimmer
100%inclusion3 decks3 decks
92%synergy
Demon of Fate's Design
100%inclusion3 decks3 decks
94%synergy
Soaring Lightbringer
100%inclusion3 decks3 decks
95%synergy
Fear of Sleep Paralysis
100%inclusion3 decks3 decks
94%synergy
Archetype of Imagination
100%inclusion3 decks3 decks
95%synergy
Doomwake Giant
100%inclusion3 decks3 decks
94%synergy
Scrabbling Skullcrab
67%inclusion2 decks3 decks
66%synergy
Starfield Mystic
67%inclusion2 decks3 decks
60%synergy
Gravebreaker Lamia
67%inclusion2 decks3 decks
66%synergy
Archon of Sun's Grace
67%inclusion2 decks3 decks
62%synergy
Fear of Impostors
67%inclusion2 decks3 decks
65%synergy
Sage of Mysteries
67%inclusion2 decks3 decks
66%synergy
Moon-Blessed Cleric
67%inclusion2 decks3 decks
62%synergy
Mesa Enchantress
67%inclusion2 decks3 decks
57%synergy
Victor, Valgavoth's Seneschal
67%inclusion2 decks3 decks
65%synergy
Enduring Curiosity
67%inclusion2 decks3 decks
59%synergy
Aminatou, Veil Piercer
67%inclusion2 decks3 decks
65%synergy
Ghostly Dancers
67%inclusion2 decks3 decks
64%synergy
Emet-Selch of the Third Seat
50%inclusion1 decks2 decks
40%synergy
Solemn Simulacrum
33%inclusion1 decks3 decks
18%synergy
Optimistic Scavenger
33%inclusion1 decks3 decks
33%synergy
Fear of Infinity
33%inclusion1 decks3 decks
33%synergy
Fear of Isolation
33%inclusion1 decks3 decks
33%synergy
Syr Konrad, the Grim
33%inclusion1 decks3 decks
27%synergy
Fear of Failed Tests
33%inclusion1 decks3 decks
33%synergy
Agent of Erebos
33%inclusion1 decks3 decks
33%synergy
Tormod, the Desecrator
33%inclusion1 decks3 decks
32%synergy
Boggart Trawler
33%inclusion1 decks3 decks
30%synergy
Aphemia, the Cacophony
33%inclusion1 decks3 decks
33%synergy
Skullsnap Nuisance
33%inclusion1 decks3 decks
33%synergy
Athreos, Shroud-Veiled
33%inclusion1 decks3 decks
29%synergy
Arvinox, the Mind Flail
33%inclusion1 decks3 decks
32%synergy
Spirited Companion
33%inclusion1 decks3 decks
31%synergy
Creeping Peeper
33%inclusion1 decks3 decks
33%synergy
Neerdiv, Devious Diver
33%inclusion1 decks3 decks
33%synergy
Auramancer
33%inclusion1 decks3 decks
30%synergy
Grim Guardian
33%inclusion1 decks3 decks
31%synergy
Heliod, the Radiant Dawn
33%inclusion1 decks3 decks
29%synergy
Entity Tracker
33%inclusion1 decks3 decks
27%synergy
Phenomenon Investigators
33%inclusion1 decks3 decks
33%synergy
Ondu Spiritdancer
33%inclusion1 decks3 decks
27%synergy
Alseid of Life's Bounty
33%inclusion1 decks3 decks
32%synergy
Stinkweed Imp
33%inclusion1 decks3 decks
33%synergy
Mindwrack Harpy
33%inclusion1 decks3 decks
33%synergy
Instants
Swords to Plowshares
67%inclusion2 decks3 decks
-2%synergy
Telling Time
33%inclusion1 decks3 decks
31%synergy
Return to Dust
33%inclusion1 decks3 decks
29%synergy
Negate
33%inclusion1 decks3 decks
17%synergy
Brainstorm
33%inclusion1 decks3 decks
16%synergy
Darkblast
33%inclusion1 decks3 decks
33%synergy
Thirst for Meaning
33%inclusion1 decks3 decks
32%synergy
Arcane Denial
33%inclusion1 decks3 decks
13%synergy
Get Out
33%inclusion1 decks3 decks
33%synergy
Utter End
33%inclusion1 decks3 decks
26%synergy
Counterspell
33%inclusion1 decks3 decks
-8%synergy
Inkshield
33%inclusion1 decks3 decks
24%synergy
Sorceries
Redress Fate
67%inclusion2 decks3 decks
60%synergy
Singularity Rupture
50%inclusion1 decks2 decks
48%synergy
Space-Time Anomaly
50%inclusion1 decks2 decks
48%synergy
Ponder
33%inclusion1 decks3 decks
24%synergy
Triumphant Reckoning
33%inclusion1 decks3 decks
33%synergy
Sevinne's Reclamation
33%inclusion1 decks3 decks
25%synergy
Open the Vaults
33%inclusion1 decks3 decks
32%synergy
Time Wipe
33%inclusion1 decks3 decks
26%synergy
Terminus
33%inclusion1 decks3 decks
29%synergy
Glimpse the Unthinkable
33%inclusion1 decks3 decks
33%synergy
Diabolic Vision
33%inclusion1 decks3 decks
31%synergy
Buried Alive
33%inclusion1 decks3 decks
29%synergy
Brilliant Restoration
33%inclusion1 decks3 decks
31%synergy
Extinguish All Hope
33%inclusion1 decks3 decks
32%synergy
Aminatou's Augury
33%inclusion1 decks3 decks
32%synergy
Traumatize
33%inclusion1 decks3 decks
33%synergy
Dance of the Manse
33%inclusion1 decks3 decks
30%synergy
Utility Artifacts
Brainstone
33%inclusion1 decks3 decks
32%synergy
Enchantments
Sigil of the Empty Throne
67%inclusion2 decks3 decks
61%synergy
Mirrormade
67%inclusion2 decks3 decks
57%synergy
Sphere of Safety
67%inclusion2 decks3 decks
57%synergy
The Tale of Tamiyo
67%inclusion2 decks3 decks
66%synergy
Cemetery Tampering
67%inclusion2 decks3 decks
66%synergy
Animate Dead
67%inclusion2 decks3 decks
57%synergy
Secret Arcade // Dusty Parlor
67%inclusion2 decks3 decks
61%synergy
Stillness in Motion
67%inclusion2 decks3 decks
66%synergy
Seal of Removal
67%inclusion2 decks3 decks
66%synergy
Grasp of Fate
33%inclusion1 decks3 decks
27%synergy
Court of Cunning
33%inclusion1 decks3 decks
32%synergy
Ripples of Undeath
33%inclusion1 decks3 decks
31%synergy
Imprisoned in the Moon
33%inclusion1 decks3 decks
27%synergy
Extravagant Replication
33%inclusion1 decks3 decks
28%synergy
On Wings of Gold
33%inclusion1 decks3 decks
25%synergy
The Eldest Reborn
33%inclusion1 decks3 decks
31%synergy
Out of the Tombs
33%inclusion1 decks3 decks
33%synergy
Grievous Wound
33%inclusion1 decks3 decks
32%synergy
Touch the Spirit Realm
33%inclusion1 decks3 decks
31%synergy
Necromancy
33%inclusion1 decks3 decks
29%synergy
Omniscience
33%inclusion1 decks3 decks
30%synergy
Boon of the Spirit Realm
33%inclusion1 decks3 decks
32%synergy
Estrid's Invocation
33%inclusion1 decks3 decks
29%synergy
Spirit-Sister's Call
33%inclusion1 decks3 decks
32%synergy
Murmuration
33%inclusion1 decks3 decks
33%synergy
Hard Cover
33%inclusion1 decks3 decks
33%synergy
Shark Typhoon
33%inclusion1 decks3 decks
27%synergy
Timely Ward
33%inclusion1 decks3 decks
28%synergy
The Restoration of Eiganjo
33%inclusion1 decks3 decks
33%synergy
Amphibian Downpour
33%inclusion1 decks3 decks
29%synergy
All That Glitters
33%inclusion1 decks3 decks
24%synergy
Unfulfilled Desires
33%inclusion1 decks3 decks
33%synergy
Seal of Cleansing
33%inclusion1 decks3 decks
32%synergy
Curator's Ward
33%inclusion1 decks3 decks
30%synergy
Fraying Sanity
33%inclusion1 decks3 decks
33%synergy
Monologue Tax
33%inclusion1 decks3 decks
27%synergy
Restricted Office // Lecture Hall
33%inclusion1 decks3 decks
31%synergy
Secrets of the Dead
33%inclusion1 decks3 decks
33%synergy
Bottomless Pool // Locker Room
33%inclusion1 decks3 decks
31%synergy
Oblivion Ring
33%inclusion1 decks3 decks
32%synergy
Court of Ardenvale
33%inclusion1 decks3 decks
33%synergy
Historian's Boon
33%inclusion1 decks3 decks
33%synergy
Polluted Cistern // Dim Oubliette
33%inclusion1 decks3 decks
33%synergy
Sheltered by Ghosts
33%inclusion1 decks3 decks
31%synergy
Solitary Confinement
33%inclusion1 decks3 decks
31%synergy
Ethereal Armor
33%inclusion1 decks3 decks
29%synergy
Alexi's Cloak
33%inclusion1 decks3 decks
33%synergy
Ethereal Absolution
33%inclusion1 decks3 decks
33%synergy
Diplomatic Immunity
33%inclusion1 decks3 decks
31%synergy
Death in Heaven
33%inclusion1 decks3 decks
33%synergy
Utility Lands
Bojuka Bog
67%inclusion2 decks3 decks
39%synergy
Hall of Heliod's Generosity
67%inclusion2 decks3 decks
53%synergy
Mystic Sanctuary
33%inclusion1 decks3 decks
29%synergy
Dalkovan Encampment
33%inclusion1 decks3 decks
33%synergy
Halimar Depths
33%inclusion1 decks3 decks
28%synergy
Restless Anchorage
33%inclusion1 decks3 decks
32%synergy
Drownyard Temple
33%inclusion1 decks3 decks
33%synergy
Dakmor Salvage
33%inclusion1 decks3 decks
33%synergy
Vault of the Archangel
33%inclusion1 decks3 decks
27%synergy
Mana Artifacts
Arcane Signet
67%inclusion2 decks3 decks
-21%synergy
Sol Ring
67%inclusion2 decks3 decks
-23%synergy
Mind Stone
67%inclusion2 decks3 decks
53%synergy
Talisman of Progress
33%inclusion1 decks3 decks
-9%synergy
Talisman of Dominance
33%inclusion1 decks3 decks
-16%synergy
Fellwar Stone
33%inclusion1 decks3 decks
-1%synergy
Talisman of Hierarchy
33%inclusion1 decks3 decks
-10%synergy
Orzhov Signet
33%inclusion1 decks3 decks
-2%synergy
Azorius Signet
33%inclusion1 decks3 decks
0%synergy
Lands
Command Tower
100%inclusion3 decks3 decks
8%synergy
Swamp
100%inclusion3 decks3 decks
9%synergy
Ash Barrens
100%inclusion3 decks3 decks
89%synergy
Arcane Sanctum
100%inclusion3 decks3 decks
45%synergy
Island
100%inclusion3 decks3 decks
7%synergy
Plains
100%inclusion3 decks3 decks
9%synergy
Glacial Fortress
67%inclusion2 decks3 decks
28%synergy
Azorius Chancery
67%inclusion2 decks3 decks
52%synergy
Terramorphic Expanse
67%inclusion2 decks3 decks
50%synergy
Exotic Orchard
67%inclusion2 decks3 decks
8%synergy
Temple of Deceit
67%inclusion2 decks3 decks
48%synergy
Caves of Koilos
67%inclusion2 decks3 decks
31%synergy
Dimir Aqueduct
67%inclusion2 decks3 decks
52%synergy
Prairie Stream
67%inclusion2 decks3 decks
26%synergy
Isolated Chapel
67%inclusion2 decks3 decks
29%synergy
Underground River
67%inclusion2 decks3 decks
35%synergy
Temple of Enlightenment
67%inclusion2 decks3 decks
50%synergy
Evolving Wilds
67%inclusion2 decks3 decks
41%synergy
Path of Ancestry
67%inclusion2 decks3 decks
39%synergy
Sunken Hollow
67%inclusion2 decks3 decks
27%synergy
Adarkar Wastes
67%inclusion2 decks3 decks
36%synergy
Temple of Silence
67%inclusion2 decks3 decks
47%synergy
Tainted Isle
33%inclusion1 decks3 decks
27%synergy
Idyllic Beachfront
33%inclusion1 decks3 decks
30%synergy
Myriad Landscape
33%inclusion1 decks3 decks
24%synergy
Contaminated Landscape
33%inclusion1 decks3 decks
19%synergy
Fetid Heath
33%inclusion1 decks3 decks
22%synergy
Tainted Field
33%inclusion1 decks3 decks
26%synergy
Port Town
33%inclusion1 decks3 decks
16%synergy
Valgavoth's Lair
33%inclusion1 decks3 decks
30%synergy
Thriving Isle
33%inclusion1 decks3 decks
29%synergy
Boggart Trawler
33%inclusion1 decks3 decks
30%synergy
Skycloud Expanse
33%inclusion1 decks3 decks
19%synergy
Sunlit Marsh
33%inclusion1 decks3 decks
29%synergy
Orzhov Basilica
33%inclusion1 decks3 decks
17%synergy
Shineshadow Snarl
33%inclusion1 decks3 decks
23%synergy
Thriving Heath
33%inclusion1 decks3 decks
29%synergy
Obscura Storefront
33%inclusion1 decks3 decks
23%synergy
Sunken Ruins
33%inclusion1 decks3 decks
26%synergy
Mystic Gate
33%inclusion1 decks3 decks
28%synergy
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