The Master of Keys (Commander) - Expensive Upgraded Mill

The Master of Keys
Rank #300
4decks
As CommanderAs CardAverage DeckDecksView Precon
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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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Enchantments
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Utility Lands
Mana Artifacts
Lands
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Eiganjo Dynastorian
50%inclusion1 decks2 decks
49%synergy
Turbulent Moor
50%inclusion1 decks2 decks
48%synergy
Changing Loyalty
50%inclusion1 decks2 decks
49%synergy
Does Machines
33%inclusion1 decks3 decks
33%synergy
High Synergy Cards
Glimpse the Unthinkable
100%inclusion4 decks4 decks
100%synergy
Gravebreaker Lamia
100%inclusion4 decks4 decks
99%synergy
Fear of Impostors
100%inclusion4 decks4 decks
99%synergy
Ripples of Undeath
100%inclusion4 decks4 decks
97%synergy
Necromancy
100%inclusion4 decks4 decks
95%synergy
Entomb
100%inclusion4 decks4 decks
93%synergy
Inquisitive Glimmer
100%inclusion4 decks4 decks
93%synergy
Animate Dead
100%inclusion4 decks4 decks
90%synergy
Game Changers
Smothering Tithe
25%inclusion1 decks4 decks
-6%synergy
Ancient Tomb
25%inclusion1 decks4 decks
12%synergy
Consecrated Sphinx
25%inclusion1 decks4 decks
19%synergy
Serra's Sanctum
25%inclusion1 decks4 decks
23%synergy
Rhystic Study
25%inclusion1 decks4 decks
-6%synergy
Gifts Ungiven
25%inclusion1 decks4 decks
22%synergy
Mana Vault
25%inclusion1 decks4 decks
16%synergy
Demonic Tutor
25%inclusion1 decks4 decks
5%synergy
Creatures
Stenn, Paranoid Partisan
75%inclusion3 decks4 decks
74%synergy
Starfield Mystic
75%inclusion3 decks4 decks
69%synergy
Mesa Enchantress
75%inclusion3 decks4 decks
66%synergy
Entity Tracker
75%inclusion3 decks4 decks
69%synergy
Witch Enchanter
50%inclusion2 decks4 decks
43%synergy
Scrabbling Skullcrab
50%inclusion2 decks4 decks
49%synergy
Demon of Fate's Design
50%inclusion2 decks4 decks
45%synergy
Sage of Mysteries
50%inclusion2 decks4 decks
50%synergy
Hedron Crab
50%inclusion2 decks4 decks
49%synergy
Starnheim Courser
25%inclusion1 decks4 decks
21%synergy
Heliod's Pilgrim
25%inclusion1 decks4 decks
24%synergy
Lotho, Corrupt Shirriff
25%inclusion1 decks4 decks
8%synergy
Light-Paws, Emperor's Voice
25%inclusion1 decks4 decks
24%synergy
Gray Merchant of Asphodel
25%inclusion1 decks4 decks
20%synergy
Defiler of Flesh
25%inclusion1 decks4 decks
25%synergy
Kami of False Hope
25%inclusion1 decks4 decks
25%synergy
Doom Whisperer
25%inclusion1 decks4 decks
24%synergy
Agent of Treachery
25%inclusion1 decks4 decks
23%synergy
Esper Sentinel
25%inclusion1 decks4 decks
-2%synergy
Overlord of the Balemurk
25%inclusion1 decks4 decks
23%synergy
Boonweaver Giant
25%inclusion1 decks4 decks
25%synergy
Angel of Suffering
25%inclusion1 decks4 decks
25%synergy
Alela, Artful Provocateur
25%inclusion1 decks4 decks
22%synergy
Pearl-Ear, Imperial Advisor
25%inclusion1 decks4 decks
23%synergy
Enduring Curiosity
25%inclusion1 decks4 decks
17%synergy
Fear of Sleep Paralysis
25%inclusion1 decks4 decks
20%synergy
Stormscape Familiar
25%inclusion1 decks4 decks
22%synergy
Laboratory Maniac
25%inclusion1 decks4 decks
22%synergy
Warren Soultrader
25%inclusion1 decks4 decks
21%synergy
Nashi, Searcher in the Dark
25%inclusion1 decks4 decks
24%synergy
Neerdiv, Devious Diver
25%inclusion1 decks4 decks
25%synergy
Doomwake Giant
25%inclusion1 decks4 decks
19%synergy
Heliod, the Radiant Dawn
25%inclusion1 decks4 decks
21%synergy
Abdel Adrian, Gorion's Ward
25%inclusion1 decks4 decks
23%synergy
Zur, Eternal Schemer
25%inclusion1 decks4 decks
22%synergy
Ondu Spiritdancer
25%inclusion1 decks4 decks
19%synergy
Alseid of Life's Bounty
25%inclusion1 decks4 decks
24%synergy
Zur the Enchanter
25%inclusion1 decks4 decks
20%synergy
Priest of Gix
25%inclusion1 decks4 decks
25%synergy
Ledger Shredder
25%inclusion1 decks4 decks
16%synergy
Ghostly Keybearer
25%inclusion1 decks4 decks
25%synergy
Mindwrack Harpy
25%inclusion1 decks4 decks
25%synergy
Mirror-Mad Phantasm
25%inclusion1 decks4 decks
25%synergy
Starfield Vocalist
25%inclusion1 decks4 decks
24%synergy
Mister Negative
25%inclusion1 decks4 decks
24%synergy
Instants
An Offer You Can't Refuse
50%inclusion2 decks4 decks
23%synergy
Swan Song
50%inclusion2 decks4 decks
30%synergy
Arcane Denial
50%inclusion2 decks4 decks
30%synergy
Swords to Plowshares
50%inclusion2 decks4 decks
-18%synergy
Fell the Profane
25%inclusion1 decks4 decks
16%synergy
Negate
25%inclusion1 decks4 decks
9%synergy
Brain Freeze
25%inclusion1 decks4 decks
24%synergy
Dark Ritual
25%inclusion1 decks4 decks
5%synergy
Cabal Ritual
25%inclusion1 decks4 decks
22%synergy
Darkblast
25%inclusion1 decks4 decks
25%synergy
Mana Drain
25%inclusion1 decks4 decks
8%synergy
Strix Serenade
25%inclusion1 decks4 decks
22%synergy
Malakir Rebirth
25%inclusion1 decks4 decks
21%synergy
Sink into Stupor
25%inclusion1 decks4 decks
12%synergy
Otherworldly Gaze
25%inclusion1 decks4 decks
23%synergy
Path to Exile
25%inclusion1 decks4 decks
-17%synergy
Generous Gift
25%inclusion1 decks4 decks
11%synergy
Sorceries
Sevinne's Reclamation
50%inclusion2 decks4 decks
41%synergy
Reanimate
50%inclusion2 decks4 decks
34%synergy
Diabolic Intent
25%inclusion1 decks4 decks
20%synergy
Resurgent Belief
25%inclusion1 decks4 decks
23%synergy
Sea Gate Restoration
25%inclusion1 decks4 decks
22%synergy
Replenish
25%inclusion1 decks4 decks
23%synergy
Scheming Symmetry
25%inclusion1 decks4 decks
24%synergy
Buried Alive
25%inclusion1 decks4 decks
21%synergy
Extinguish All Hope
25%inclusion1 decks4 decks
23%synergy
Beseech the Mirror
25%inclusion1 decks4 decks
21%synergy
Space-Time Anomaly
25%inclusion1 decks4 decks
23%synergy
Utility Artifacts
Mesmeric Orb
50%inclusion2 decks4 decks
49%synergy
Perpetual Timepiece
25%inclusion1 decks4 decks
25%synergy
Cloud Key
25%inclusion1 decks4 decks
22%synergy
Enchantments
Dance of the Dead
75%inclusion3 decks4 decks
73%synergy
Out of the Tombs
75%inclusion3 decks4 decks
75%synergy
Leyline of Anticipation
75%inclusion3 decks4 decks
71%synergy
Amphibian Downpour
75%inclusion3 decks4 decks
70%synergy
Seal of Cleansing
75%inclusion3 decks4 decks
74%synergy
Dress Down
75%inclusion3 decks4 decks
73%synergy
Stillness in Motion
75%inclusion3 decks4 decks
75%synergy
Imprisoned in the Moon
50%inclusion2 decks4 decks
43%synergy
Chronic Flooding
50%inclusion2 decks4 decks
50%synergy
Estrid's Invocation
50%inclusion2 decks4 decks
45%synergy
Copy Enchantment
50%inclusion2 decks4 decks
45%synergy
Sphere of Safety
50%inclusion2 decks4 decks
41%synergy
Static Prison
50%inclusion2 decks4 decks
50%synergy
Solitary Confinement
50%inclusion2 decks4 decks
48%synergy
Greater Auramancy
50%inclusion2 decks4 decks
46%synergy
Ghostly Prison
50%inclusion2 decks4 decks
28%synergy
Propaganda
50%inclusion2 decks4 decks
22%synergy
Seal of Removal
50%inclusion2 decks4 decks
49%synergy
Darksteel Mutation
25%inclusion1 decks4 decks
19%synergy
Momentum Breaker
25%inclusion1 decks4 decks
25%synergy
Parallax Wave
25%inclusion1 decks4 decks
25%synergy
Lunarch Mantle
25%inclusion1 decks4 decks
25%synergy
Grasp of Fate
25%inclusion1 decks4 decks
19%synergy
Cacophony Unleashed
25%inclusion1 decks4 decks
23%synergy
Songbirds' Blessing
25%inclusion1 decks4 decks
24%synergy
Dark Privilege
25%inclusion1 decks4 decks
25%synergy
Court of Cunning
25%inclusion1 decks4 decks
24%synergy
Dissipation Field
25%inclusion1 decks4 decks
24%synergy
Sigil of the Empty Throne
25%inclusion1 decks4 decks
19%synergy
Moat
25%inclusion1 decks4 decks
25%synergy
Mystic Veil
25%inclusion1 decks4 decks
25%synergy
Leyline of Sanctity
25%inclusion1 decks4 decks
24%synergy
Life Insurance
25%inclusion1 decks4 decks
24%synergy
Soul Snare
25%inclusion1 decks4 decks
25%synergy
Authority of the Consuls
25%inclusion1 decks4 decks
12%synergy
Attunement
25%inclusion1 decks4 decks
25%synergy
Case of the Stashed Skeleton
25%inclusion1 decks4 decks
25%synergy
Dance of Many
25%inclusion1 decks4 decks
25%synergy
Omniscience
25%inclusion1 decks4 decks
21%synergy
Mantle of the Ancients
25%inclusion1 decks4 decks
22%synergy
Mirrormade
25%inclusion1 decks4 decks
15%synergy
Blood Funnel
25%inclusion1 decks4 decks
25%synergy
Out of Time
25%inclusion1 decks4 decks
24%synergy
Mystic Remora
25%inclusion1 decks4 decks
4%synergy
Forbidden Crypt
25%inclusion1 decks4 decks
25%synergy
Shark Typhoon
25%inclusion1 decks4 decks
19%synergy
Treachery
25%inclusion1 decks4 decks
24%synergy
Central Elevator // Promising Stairs
25%inclusion1 decks4 decks
24%synergy
The Tale of Tamiyo
25%inclusion1 decks4 decks
25%synergy
Cemetery Tampering
25%inclusion1 decks4 decks
24%synergy
Planeswalkers
Jace, the Perfected Mind
50%inclusion2 decks4 decks
50%synergy
Ashiok, Dream Render
25%inclusion1 decks4 decks
24%synergy
Utility Lands
Minamo, School at Water's Edge
25%inclusion1 decks4 decks
21%synergy
Phyrexian Tower
25%inclusion1 decks4 decks
21%synergy
Hall of Heliod's Generosity
25%inclusion1 decks4 decks
12%synergy
Urza's Saga
25%inclusion1 decks4 decks
13%synergy
Spymaster's Vault
25%inclusion1 decks4 decks
23%synergy
Nykthos, Shrine to Nyx
25%inclusion1 decks4 decks
24%synergy
Urborg, Tomb of Yawgmoth
25%inclusion1 decks4 decks
12%synergy
Otawara, Soaring City
25%inclusion1 decks4 decks
6%synergy
Mana Artifacts
Sol Ring
100%inclusion4 decks4 decks
10%synergy
Arcane Signet
50%inclusion2 decks4 decks
-38%synergy
Talisman of Progress
25%inclusion1 decks4 decks
-19%synergy
Talisman of Dominance
25%inclusion1 decks4 decks
-25%synergy
Talisman of Hierarchy
25%inclusion1 decks4 decks
-19%synergy
Springleaf Drum
25%inclusion1 decks4 decks
23%synergy
Lands
Tundra
100%inclusion4 decks4 decks
84%synergy
Command Tower
100%inclusion4 decks4 decks
7%synergy
Undercity Sewers
100%inclusion4 decks4 decks
85%synergy
Misty Rainforest
100%inclusion4 decks4 decks
89%synergy
Shadowy Backstreet
100%inclusion4 decks4 decks
87%synergy
Exotic Orchard
100%inclusion4 decks4 decks
41%synergy
Windswept Heath
100%inclusion4 decks4 decks
91%synergy
Underground Sea
100%inclusion4 decks4 decks
84%synergy
Sea of Clouds
100%inclusion4 decks4 decks
65%synergy
Godless Shrine
100%inclusion4 decks4 decks
49%synergy
Morphic Pool
100%inclusion4 decks4 decks
66%synergy
Arid Mesa
100%inclusion4 decks4 decks
91%synergy
Scrubland
100%inclusion4 decks4 decks
84%synergy
Scalding Tarn
100%inclusion4 decks4 decks
89%synergy
Meticulous Archive
100%inclusion4 decks4 decks
86%synergy
Marsh Flats
100%inclusion4 decks4 decks
64%synergy
Vault of Champions
100%inclusion4 decks4 decks
68%synergy
Polluted Delta
100%inclusion4 decks4 decks
62%synergy
Hallowed Fountain
100%inclusion4 decks4 decks
49%synergy
Flooded Strand
100%inclusion4 decks4 decks
62%synergy
Watery Grave
100%inclusion4 decks4 decks
49%synergy
Swamp
75%inclusion3 decks4 decks
-17%synergy
Verdant Catacombs
75%inclusion3 decks4 decks
65%synergy
Island
75%inclusion3 decks4 decks
-18%synergy
Plains
75%inclusion3 decks4 decks
-17%synergy
Mana Confluence
75%inclusion3 decks4 decks
61%synergy
City of Brass
75%inclusion3 decks4 decks
60%synergy
Bloodstained Mire
75%inclusion3 decks4 decks
64%synergy
Witch Enchanter
50%inclusion2 decks4 decks
43%synergy
Caves of Koilos
50%inclusion2 decks4 decks
14%synergy
Isolated Chapel
50%inclusion2 decks4 decks
9%synergy
Underground River
50%inclusion2 decks4 decks
16%synergy
Gloomlake Verge
50%inclusion2 decks4 decks
39%synergy
Floodfarm Verge
50%inclusion2 decks4 decks
39%synergy
Glacial Fortress
25%inclusion1 decks4 decks
-17%synergy
Prismatic Vista
25%inclusion1 decks4 decks
21%synergy
Fell the Profane
25%inclusion1 decks4 decks
16%synergy
Bleachbone Verge
25%inclusion1 decks4 decks
16%synergy
Sea Gate Restoration
25%inclusion1 decks4 decks
22%synergy
Shipwreck Marsh
25%inclusion1 decks4 decks
4%synergy
Valgavoth's Lair
25%inclusion1 decks4 decks
22%synergy
Reflecting Pool
25%inclusion1 decks4 decks
17%synergy
Raffine's Tower
25%inclusion1 decks4 decks
-16%synergy
Drowned Catacomb
25%inclusion1 decks4 decks
-13%synergy
Malakir Rebirth
25%inclusion1 decks4 decks
21%synergy
Snow-Covered Plains
25%inclusion1 decks4 decks
22%synergy
Sink into Stupor
25%inclusion1 decks4 decks
12%synergy
Shattered Sanctum
25%inclusion1 decks4 decks
8%synergy
Forbidden Orchard
25%inclusion1 decks4 decks
23%synergy
Adarkar Wastes
25%inclusion1 decks4 decks
-7%synergy
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