The Master of Keys (Commander) - Budget Upgraded Self-Mill

The Master of Keys
Rank #306
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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Mana Artifacts
Lands
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Scrabbling Skullcrab
100%inclusion2 decks2 decks
99%synergy
Starfield Mystic
100%inclusion2 decks2 decks
93%synergy
Gravebreaker Lamia
100%inclusion2 decks2 decks
99%synergy
Inquisitive Glimmer
100%inclusion2 decks2 decks
93%synergy
Demon of Fate's Design
100%inclusion2 decks2 decks
95%synergy
Mesa Enchantress
100%inclusion2 decks2 decks
91%synergy
Victor, Valgavoth's Seneschal
100%inclusion2 decks2 decks
98%synergy
Doomwake Giant
100%inclusion2 decks2 decks
94%synergy
Millikin
100%inclusion2 decks2 decks
99%synergy
Stenn, Paranoid Partisan
50%inclusion1 decks2 decks
49%synergy
Raff Capashen, Ship's Mage
50%inclusion1 decks2 decks
50%synergy
Protean Thaumaturge
50%inclusion1 decks2 decks
49%synergy
Ian Chesterton
50%inclusion1 decks2 decks
50%synergy
Hanna, Ship's Navigator
50%inclusion1 decks2 decks
48%synergy
Scholar of New Horizons
50%inclusion1 decks2 decks
49%synergy
Archon of Sun's Grace
50%inclusion1 decks2 decks
45%synergy
Mirrorhall Mimic
50%inclusion1 decks2 decks
50%synergy
Fear of Surveillance
50%inclusion1 decks2 decks
50%synergy
Fear of Impostors
50%inclusion1 decks2 decks
49%synergy
Soaring Lightbringer
50%inclusion1 decks2 decks
45%synergy
Silent Hallcreeper
50%inclusion1 decks2 decks
46%synergy
Flux Channeler
50%inclusion1 decks2 decks
50%synergy
Skullsnap Nuisance
50%inclusion1 decks2 decks
50%synergy
Athreos, Shroud-Veiled
50%inclusion1 decks2 decks
46%synergy
Fear of Sleep Paralysis
50%inclusion1 decks2 decks
45%synergy
Tameshi, Reality Architect
50%inclusion1 decks2 decks
49%synergy
Ancient Cellarspawn
50%inclusion1 decks2 decks
47%synergy
Aminatou, Veil Piercer
50%inclusion1 decks2 decks
49%synergy
Ghostly Dancers
50%inclusion1 decks2 decks
47%synergy
Entity Tracker
50%inclusion1 decks2 decks
44%synergy
Layla Hassan
50%inclusion1 decks2 decks
50%synergy
Mindwrack Harpy
50%inclusion1 decks2 decks
50%synergy
Chisei, Heart of Oceans
50%inclusion1 decks2 decks
50%synergy
Instants
Frantic Search
100%inclusion2 decks2 decks
82%synergy
Swords to Plowshares
50%inclusion1 decks2 decks
-18%synergy
Otherworldly Gaze
50%inclusion1 decks2 decks
48%synergy
Counterspell
50%inclusion1 decks2 decks
8%synergy
Path to Exile
50%inclusion1 decks2 decks
8%synergy
Sorceries
Sevinne's Reclamation
100%inclusion2 decks2 decks
91%synergy
Dance of the Manse
100%inclusion2 decks2 decks
97%synergy
Time Wipe
50%inclusion1 decks2 decks
43%synergy
Brilliant Restoration
50%inclusion1 decks2 decks
48%synergy
Mnemonic Betrayal
50%inclusion1 decks2 decks
47%synergy
Extinguish All Hope
50%inclusion1 decks2 decks
48%synergy
Redress Fate
50%inclusion1 decks2 decks
44%synergy
Utility Artifacts
Wayfarer's Bauble
100%inclusion2 decks2 decks
92%synergy
Cloud Key
50%inclusion1 decks2 decks
47%synergy
Power Conduit
50%inclusion1 decks2 decks
49%synergy
Keys to the House
50%inclusion1 decks2 decks
50%synergy
Enchantments
Grasp of Fate
100%inclusion2 decks2 decks
94%synergy
Sphere of Safety
100%inclusion2 decks2 decks
91%synergy
Cemetery Tampering
100%inclusion2 decks2 decks
99%synergy
Darksteel Mutation
50%inclusion1 decks2 decks
44%synergy
One with the Multiverse
50%inclusion1 decks2 decks
45%synergy
Minimus Containment
50%inclusion1 decks2 decks
50%synergy
Phyrexian Scriptures
50%inclusion1 decks2 decks
49%synergy
Cramped Vents // Access Maze
50%inclusion1 decks2 decks
48%synergy
Court of Cunning
50%inclusion1 decks2 decks
49%synergy
King Narfi's Betrayal
50%inclusion1 decks2 decks
50%synergy
Extravagant Replication
50%inclusion1 decks2 decks
45%synergy
Sigil of the Empty Throne
50%inclusion1 decks2 decks
44%synergy
Elspeth Conquers Death
50%inclusion1 decks2 decks
49%synergy
The War in Heaven
50%inclusion1 decks2 decks
50%synergy
Surgical Suite // Hospital Room
50%inclusion1 decks2 decks
50%synergy
The Phasing of Zhalfir
50%inclusion1 decks2 decks
50%synergy
Genesis of the Daleks
50%inclusion1 decks2 decks
50%synergy
The Trickster-God's Heist
50%inclusion1 decks2 decks
50%synergy
Mirrormade
50%inclusion1 decks2 decks
40%synergy
Birth of the Imperium
50%inclusion1 decks2 decks
48%synergy
The Creation of Avacyn
50%inclusion1 decks2 decks
50%synergy
Kiora Bests the Sea God
50%inclusion1 decks2 decks
50%synergy
Meat Locker // Drowned Diner
50%inclusion1 decks2 decks
49%synergy
Central Elevator // Promising Stairs
50%inclusion1 decks2 decks
49%synergy
The Tale of Tamiyo
50%inclusion1 decks2 decks
50%synergy
Amphibian Downpour
50%inclusion1 decks2 decks
45%synergy
All That Glitters
50%inclusion1 decks2 decks
41%synergy
Seal of Cleansing
50%inclusion1 decks2 decks
49%synergy
Restricted Office // Lecture Hall
50%inclusion1 decks2 decks
48%synergy
Secrets of the Dead
50%inclusion1 decks2 decks
50%synergy
Bottomless Pool // Locker Room
50%inclusion1 decks2 decks
48%synergy
Tale of Tinúviel
50%inclusion1 decks2 decks
50%synergy
Dazzling Theater // Prop Room
50%inclusion1 decks2 decks
49%synergy
One Ring to Rule Them All
50%inclusion1 decks2 decks
50%synergy
Historian's Boon
50%inclusion1 decks2 decks
50%synergy
Polluted Cistern // Dim Oubliette
50%inclusion1 decks2 decks
49%synergy
Stillness in Motion
50%inclusion1 decks2 decks
50%synergy
Ascent of the Worthy
50%inclusion1 decks2 decks
50%synergy
Ethereal Armor
50%inclusion1 decks2 decks
45%synergy
Three Blind Mice
50%inclusion1 decks2 decks
50%synergy
Ballad of the Black Flag
50%inclusion1 decks2 decks
50%synergy
Seal of Removal
50%inclusion1 decks2 decks
49%synergy
Defiled Crypt // Cadaver Lab
50%inclusion1 decks2 decks
49%synergy
Firja's Retribution
50%inclusion1 decks2 decks
50%synergy
Elspeth's Nightmare
50%inclusion1 decks2 decks
50%synergy
Utility Lands
Nesting Grounds
50%inclusion1 decks2 decks
49%synergy
Mana Artifacts
Arcane Signet
100%inclusion2 decks2 decks
12%synergy
Sky Diamond
100%inclusion2 decks2 decks
99%synergy
Sol Ring
100%inclusion2 decks2 decks
10%synergy
Marble Diamond
100%inclusion2 decks2 decks
99%synergy
Mind Stone
100%inclusion2 decks2 decks
87%synergy
Orzhov Signet
100%inclusion2 decks2 decks
67%synergy
Azorius Signet
100%inclusion2 decks2 decks
69%synergy
Commander's Sphere
50%inclusion1 decks2 decks
31%synergy
Charcoal Diamond
50%inclusion1 decks2 decks
49%synergy
Dimir Signet
50%inclusion1 decks2 decks
18%synergy
Fellwar Stone
50%inclusion1 decks2 decks
16%synergy
Lands
Command Tower
100%inclusion2 decks2 decks
7%synergy
Swamp
100%inclusion2 decks2 decks
9%synergy
Island
100%inclusion2 decks2 decks
7%synergy
Plains
100%inclusion2 decks2 decks
8%synergy
Glacial Fortress
50%inclusion1 decks2 decks
9%synergy
Azorius Chancery
50%inclusion1 decks2 decks
36%synergy
Terramorphic Expanse
50%inclusion1 decks2 decks
34%synergy
Exotic Orchard
50%inclusion1 decks2 decks
-9%synergy
Caves of Koilos
50%inclusion1 decks2 decks
15%synergy
Dimir Aqueduct
50%inclusion1 decks2 decks
36%synergy
Tranquil Cove
50%inclusion1 decks2 decks
44%synergy
Valgavoth's Lair
50%inclusion1 decks2 decks
47%synergy
Skycloud Expanse
50%inclusion1 decks2 decks
35%synergy
Arcane Sanctum
50%inclusion1 decks2 decks
-4%synergy
Isolated Chapel
50%inclusion1 decks2 decks
10%synergy
Temple of Enlightenment
50%inclusion1 decks2 decks
34%synergy
Evolving Wilds
50%inclusion1 decks2 decks
25%synergy
Orzhov Basilica
50%inclusion1 decks2 decks
34%synergy
Murky Sewer
50%inclusion1 decks2 decks
50%synergy
Neglected Manor
50%inclusion1 decks2 decks
49%synergy
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