The Master of Keys (Commander) - Expensive Upgraded Mill

The Master of Keys
Rank #301
5decks
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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
Planeswalkers
Utility Lands
Mana Artifacts
Lands
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Gravebreaker Lamia
80%inclusion4 decks5 decks
79%synergy
Necromancy
80%inclusion4 decks5 decks
76%synergy
Starfield Mystic
80%inclusion4 decks5 decks
74%synergy
Entomb
80%inclusion4 decks5 decks
73%synergy
Inquisitive Glimmer
80%inclusion4 decks5 decks
73%synergy
Game Changers
Smothering Tithe
60%inclusion3 decks5 decks
30%synergy
Ancient Tomb
40%inclusion2 decks5 decks
28%synergy
Serra's Sanctum
40%inclusion2 decks5 decks
38%synergy
Imperial Seal
20%inclusion1 decks5 decks
13%synergy
Consecrated Sphinx
20%inclusion1 decks5 decks
14%synergy
The One Ring
20%inclusion1 decks5 decks
8%synergy
Intuition
20%inclusion1 decks5 decks
18%synergy
Rhystic Study
20%inclusion1 decks5 decks
-10%synergy
Gifts Ungiven
20%inclusion1 decks5 decks
17%synergy
Mana Vault
20%inclusion1 decks5 decks
12%synergy
Creatures
Witch Enchanter
60%inclusion3 decks5 decks
53%synergy
Demon of Fate's Design
60%inclusion3 decks5 decks
55%synergy
Fear of Impostors
60%inclusion3 decks5 decks
59%synergy
Mesa Enchantress
60%inclusion3 decks5 decks
51%synergy
Entity Tracker
60%inclusion3 decks5 decks
54%synergy
Stenn, Paranoid Partisan
40%inclusion2 decks5 decks
39%synergy
Scrabbling Skullcrab
40%inclusion2 decks5 decks
39%synergy
Doom Whisperer
40%inclusion2 decks5 decks
39%synergy
Esper Sentinel
40%inclusion2 decks5 decks
13%synergy
Hedron Crab
40%inclusion2 decks5 decks
39%synergy
Angel of Suffering
40%inclusion2 decks5 decks
40%synergy
Victor, Valgavoth's Seneschal
40%inclusion2 decks5 decks
38%synergy
Fear of Sleep Paralysis
40%inclusion2 decks5 decks
35%synergy
Laboratory Maniac
40%inclusion2 decks5 decks
37%synergy
Doomwake Giant
40%inclusion2 decks5 decks
34%synergy
Zur the Enchanter
40%inclusion2 decks5 decks
35%synergy
Mirror-Mad Phantasm
40%inclusion2 decks5 decks
40%synergy
Emet-Selch of the Third Seat
25%inclusion1 decks4 decks
16%synergy
Lyse Hext
25%inclusion1 decks4 decks
16%synergy
Starfield Vocalist
25%inclusion1 decks4 decks
24%synergy
Mister Negative
25%inclusion1 decks4 decks
24%synergy
Eiganjo Dynastorian
25%inclusion1 decks4 decks
24%synergy
Phenax, God of Deception
20%inclusion1 decks5 decks
20%synergy
Heliod's Pilgrim
20%inclusion1 decks5 decks
19%synergy
Syr Konrad, the Grim
20%inclusion1 decks5 decks
15%synergy
Light-Paws, Emperor's Voice
20%inclusion1 decks5 decks
19%synergy
Overlord of the Floodpits
20%inclusion1 decks5 decks
17%synergy
Y'shtola, Night's Blessed
20%inclusion1 decks5 decks
19%synergy
Sheoldred, the Apocalypse
20%inclusion1 decks5 decks
11%synergy
Baleful Strix
20%inclusion1 decks5 decks
-1%synergy
Gray Merchant of Asphodel
20%inclusion1 decks5 decks
15%synergy
Defiler of Flesh
20%inclusion1 decks5 decks
20%synergy
Kami of False Hope
20%inclusion1 decks5 decks
20%synergy
Agent of Treachery
20%inclusion1 decks5 decks
18%synergy
Fear of Surveillance
20%inclusion1 decks5 decks
20%synergy
Hydroelectric Specimen
20%inclusion1 decks5 decks
17%synergy
Sage of Mysteries
20%inclusion1 decks5 decks
20%synergy
Overlord of the Balemurk
20%inclusion1 decks5 decks
18%synergy
Silent Hallcreeper
20%inclusion1 decks5 decks
15%synergy
Boonweaver Giant
20%inclusion1 decks5 decks
20%synergy
Overlord of the Mistmoors
20%inclusion1 decks5 decks
18%synergy
Moon-Blessed Cleric
20%inclusion1 decks5 decks
15%synergy
Enduring Tenacity
20%inclusion1 decks5 decks
12%synergy
Skullsnap Nuisance
20%inclusion1 decks5 decks
20%synergy
Athreos, Shroud-Veiled
20%inclusion1 decks5 decks
16%synergy
Pearl-Ear, Imperial Advisor
20%inclusion1 decks5 decks
18%synergy
Enduring Curiosity
20%inclusion1 decks5 decks
12%synergy
Crypt Ghast
20%inclusion1 decks5 decks
19%synergy
Gremlin Tamer
20%inclusion1 decks5 decks
19%synergy
Stormscape Familiar
20%inclusion1 decks5 decks
17%synergy
Instants
Fell the Profane
40%inclusion2 decks5 decks
31%synergy
Brain Freeze
40%inclusion2 decks5 decks
39%synergy
Dark Ritual
40%inclusion2 decks5 decks
20%synergy
Cabal Ritual
40%inclusion2 decks5 decks
37%synergy
Sink into Stupor
40%inclusion2 decks5 decks
27%synergy
Otherworldly Gaze
40%inclusion2 decks5 decks
38%synergy
Deadly Rollick
20%inclusion1 decks5 decks
4%synergy
An Offer You Can't Refuse
20%inclusion1 decks5 decks
-8%synergy
Eerie Interference
20%inclusion1 decks5 decks
20%synergy
Darkblast
20%inclusion1 decks5 decks
20%synergy
Mana Drain
20%inclusion1 decks5 decks
3%synergy
Seized from Slumber
20%inclusion1 decks5 decks
20%synergy
Swan Song
20%inclusion1 decks5 decks
-0%synergy
Perplex
20%inclusion1 decks5 decks
19%synergy
Malakir Rebirth
20%inclusion1 decks5 decks
15%synergy
Arcane Denial
20%inclusion1 decks5 decks
-0%synergy
Mission Briefing
20%inclusion1 decks5 decks
20%synergy
Withering Torment
20%inclusion1 decks5 decks
18%synergy
Sorceries
Replenish
60%inclusion3 decks5 decks
58%synergy
Glimpse the Unthinkable
60%inclusion3 decks5 decks
60%synergy
Space-Time Anomaly
25%inclusion1 decks4 decks
23%synergy
Ponder
20%inclusion1 decks5 decks
11%synergy
Commune with Evil
20%inclusion1 decks5 decks
20%synergy
Diabolic Intent
20%inclusion1 decks5 decks
15%synergy
Lively Dirge
20%inclusion1 decks5 decks
19%synergy
Tranquilize
20%inclusion1 decks5 decks
20%synergy
Sevinne's Reclamation
20%inclusion1 decks5 decks
11%synergy
Sea Gate Restoration
20%inclusion1 decks5 decks
17%synergy
Agadeem's Awakening
20%inclusion1 decks5 decks
18%synergy
Scheming Symmetry
20%inclusion1 decks5 decks
19%synergy
Demonic Tutor
20%inclusion1 decks5 decks
-0%synergy
Buried Alive
20%inclusion1 decks5 decks
16%synergy
Living Death
20%inclusion1 decks5 decks
15%synergy
Reanimate
20%inclusion1 decks5 decks
4%synergy
Beseech the Mirror
20%inclusion1 decks5 decks
16%synergy
Portent
20%inclusion1 decks5 decks
17%synergy
Redress Fate
20%inclusion1 decks5 decks
15%synergy
Breach the Multiverse
20%inclusion1 decks5 decks
18%synergy
Utility Artifacts
Mesmeric Orb
60%inclusion3 decks5 decks
59%synergy
Chimil, the Inner Sun
20%inclusion1 decks5 decks
19%synergy
Perpetual Timepiece
20%inclusion1 decks5 decks
20%synergy
Crucible of Worlds
20%inclusion1 decks5 decks
19%synergy
Enchantments
Dance of the Dead
60%inclusion3 decks5 decks
58%synergy
Ripples of Undeath
60%inclusion3 decks5 decks
57%synergy
Out of the Tombs
60%inclusion3 decks5 decks
60%synergy
Sphere of Safety
60%inclusion3 decks5 decks
51%synergy
Seal of Cleansing
60%inclusion3 decks5 decks
59%synergy
Animate Dead
60%inclusion3 decks5 decks
50%synergy
Stillness in Motion
60%inclusion3 decks5 decks
60%synergy
Propaganda
60%inclusion3 decks5 decks
31%synergy
Aang's Iceberg
50%inclusion2 decks4 decks
50%synergy
Chakra Meditation
50%inclusion2 decks4 decks
50%synergy
Cacophony Unleashed
40%inclusion2 decks5 decks
38%synergy
Court of Cunning
40%inclusion2 decks5 decks
39%synergy
Imprisoned in the Moon
40%inclusion2 decks5 decks
33%synergy
Chronic Flooding
40%inclusion2 decks5 decks
40%synergy
Authority of the Consuls
40%inclusion2 decks5 decks
26%synergy
Blind Obedience
40%inclusion2 decks5 decks
28%synergy
Omniscience
40%inclusion2 decks5 decks
36%synergy
Mirrormade
40%inclusion2 decks5 decks
30%synergy
The Tale of Tamiyo
40%inclusion2 decks5 decks
40%synergy
Leyline of Anticipation
40%inclusion2 decks5 decks
36%synergy
Amphibian Downpour
40%inclusion2 decks5 decks
35%synergy
Static Prison
40%inclusion2 decks5 decks
40%synergy
No Mercy
40%inclusion2 decks5 decks
37%synergy
Dress Down
40%inclusion2 decks5 decks
38%synergy
Painful Quandary
40%inclusion2 decks5 decks
37%synergy
Solitary Confinement
40%inclusion2 decks5 decks
38%synergy
Nowhere to Run
40%inclusion2 decks5 decks
39%synergy
Greater Auramancy
40%inclusion2 decks5 decks
36%synergy
Ghostly Prison
40%inclusion2 decks5 decks
17%synergy
Seal of Removal
40%inclusion2 decks5 decks
39%synergy
Does Machines
25%inclusion1 decks4 decks
25%synergy
Changing Loyalty
25%inclusion1 decks4 decks
24%synergy
Darksteel Mutation
20%inclusion1 decks5 decks
14%synergy
One with the Multiverse
20%inclusion1 decks5 decks
15%synergy
Momentum Breaker
20%inclusion1 decks5 decks
20%synergy
Counterbalance
20%inclusion1 decks5 decks
18%synergy
Parallax Wave
20%inclusion1 decks5 decks
20%synergy
Lunarch Mantle
20%inclusion1 decks5 decks
20%synergy
Legacy's Allure
20%inclusion1 decks5 decks
20%synergy
Hesitation
20%inclusion1 decks5 decks
20%synergy
Polluted Bonds
20%inclusion1 decks5 decks
19%synergy
Grasp of Fate
20%inclusion1 decks5 decks
14%synergy
Trapped in the Screen
20%inclusion1 decks5 decks
20%synergy
Songbirds' Blessing
20%inclusion1 decks5 decks
19%synergy
Dark Privilege
20%inclusion1 decks5 decks
20%synergy
Dissipation Field
20%inclusion1 decks5 decks
19%synergy
Unable to Scream
20%inclusion1 decks5 decks
19%synergy
Shardmage's Rescue
20%inclusion1 decks5 decks
20%synergy
Moat
20%inclusion1 decks5 decks
20%synergy
Mystic Veil
20%inclusion1 decks5 decks
20%synergy
Planeswalkers
Jace, the Perfected Mind
20%inclusion1 decks5 decks
20%synergy
Jace, Wielder of Mysteries
20%inclusion1 decks5 decks
18%synergy
Ashiok, Dream Render
20%inclusion1 decks5 decks
19%synergy
Ashiok, Sculptor of Fears
20%inclusion1 decks5 decks
20%synergy
Utility Lands
Phyrexian Tower
40%inclusion2 decks5 decks
36%synergy
Minamo, School at Water's Edge
20%inclusion1 decks5 decks
16%synergy
Mystic Sanctuary
20%inclusion1 decks5 decks
16%synergy
Urza's Saga
20%inclusion1 decks5 decks
8%synergy
Spymaster's Vault
20%inclusion1 decks5 decks
18%synergy
Command Beacon
20%inclusion1 decks5 decks
17%synergy
Nykthos, Shrine to Nyx
20%inclusion1 decks5 decks
19%synergy
Academy Ruins
20%inclusion1 decks5 decks
13%synergy
Takenuma, Abandoned Mire
20%inclusion1 decks5 decks
14%synergy
Petrified Field
20%inclusion1 decks5 decks
20%synergy
Otawara, Soaring City
20%inclusion1 decks5 decks
1%synergy
Mana Artifacts
Sol Ring
100%inclusion5 decks5 decks
10%synergy
Arcane Signet
60%inclusion3 decks5 decks
-28%synergy
Talisman of Progress
20%inclusion1 decks5 decks
-25%synergy
Commander's Sphere
20%inclusion1 decks5 decks
3%synergy
Talisman of Dominance
20%inclusion1 decks5 decks
-30%synergy
Talisman of Hierarchy
20%inclusion1 decks5 decks
-25%synergy
Azorius Signet
20%inclusion1 decks5 decks
-9%synergy
Lands
Tundra
100%inclusion5 decks5 decks
84%synergy
Command Tower
100%inclusion5 decks5 decks
7%synergy
Underground Sea
100%inclusion5 decks5 decks
84%synergy
Godless Shrine
100%inclusion5 decks5 decks
48%synergy
Scrubland
100%inclusion5 decks5 decks
84%synergy
Marsh Flats
100%inclusion5 decks5 decks
64%synergy
Polluted Delta
100%inclusion5 decks5 decks
62%synergy
Hallowed Fountain
100%inclusion5 decks5 decks
49%synergy
Flooded Strand
100%inclusion5 decks5 decks
61%synergy
Watery Grave
100%inclusion5 decks5 decks
49%synergy
Undercity Sewers
80%inclusion4 decks5 decks
65%synergy
Shadowy Backstreet
80%inclusion4 decks5 decks
67%synergy
Exotic Orchard
80%inclusion4 decks5 decks
21%synergy
Swamp
80%inclusion4 decks5 decks
-12%synergy
Arid Mesa
80%inclusion4 decks5 decks
71%synergy
Meticulous Archive
80%inclusion4 decks5 decks
66%synergy
Mana Confluence
80%inclusion4 decks5 decks
66%synergy
City of Brass
80%inclusion4 decks5 decks
65%synergy
Witch Enchanter
60%inclusion3 decks5 decks
53%synergy
Misty Rainforest
60%inclusion3 decks5 decks
49%synergy
Windswept Heath
60%inclusion3 decks5 decks
51%synergy
Caves of Koilos
60%inclusion3 decks5 decks
24%synergy
Sea of Clouds
60%inclusion3 decks5 decks
25%synergy
Raffine's Tower
60%inclusion3 decks5 decks
19%synergy
Island
60%inclusion3 decks5 decks
-33%synergy
Plains
60%inclusion3 decks5 decks
-32%synergy
Morphic Pool
60%inclusion3 decks5 decks
27%synergy
Scalding Tarn
60%inclusion3 decks5 decks
50%synergy
Vault of Champions
60%inclusion3 decks5 decks
28%synergy
Bloodstained Mire
60%inclusion3 decks5 decks
49%synergy
Prismatic Vista
40%inclusion2 decks5 decks
36%synergy
Fell the Profane
40%inclusion2 decks5 decks
31%synergy
Verdant Catacombs
40%inclusion2 decks5 decks
30%synergy
Isolated Chapel
40%inclusion2 decks5 decks
-2%synergy
Underground River
40%inclusion2 decks5 decks
5%synergy
Sink into Stupor
40%inclusion2 decks5 decks
27%synergy
Adarkar Wastes
40%inclusion2 decks5 decks
7%synergy
Gloomlake Verge
40%inclusion2 decks5 decks
29%synergy
Floodfarm Verge
40%inclusion2 decks5 decks
29%synergy
Turbulent Moor
25%inclusion1 decks4 decks
22%synergy
Glacial Fortress
20%inclusion1 decks5 decks
-24%synergy
Bleachbone Verge
20%inclusion1 decks5 decks
11%synergy
Sea Gate Restoration
20%inclusion1 decks5 decks
17%synergy
Agadeem's Awakening
20%inclusion1 decks5 decks
18%synergy
Hydroelectric Specimen
20%inclusion1 decks5 decks
17%synergy
Shipwreck Marsh
20%inclusion1 decks5 decks
-1%synergy
Reflecting Pool
20%inclusion1 decks5 decks
12%synergy
Drowned Catacomb
20%inclusion1 decks5 decks
-19%synergy
Malakir Rebirth
20%inclusion1 decks5 decks
15%synergy
Snow-Covered Plains
20%inclusion1 decks5 decks
17%synergy
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