The Master of Keys (Commander) - Budget Upgraded Mill

The Master of Keys
Rank #301
5decks
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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Inquisitive Glimmer
100%inclusion5 decks5 decks
93%synergy
Cemetery Tampering
80%inclusion4 decks5 decks
79%synergy
Gravebreaker Lamia
80%inclusion4 decks5 decks
79%synergy
Fear of Impostors
80%inclusion4 decks5 decks
79%synergy
Seal of Cleansing
80%inclusion4 decks5 decks
79%synergy
Amphibian Downpour
80%inclusion4 decks5 decks
75%synergy
Demon of Fate's Design
80%inclusion4 decks5 decks
75%synergy
Doomwake Giant
80%inclusion4 decks5 decks
74%synergy
Grasp of Fate
80%inclusion4 decks5 decks
74%synergy
Mesa Enchantress
80%inclusion4 decks5 decks
71%synergy
Top Cards
Mirrormade
80%inclusion4 decks5 decks
70%synergy
Animate Dead
80%inclusion4 decks5 decks
70%synergy
Game Changers
Notion Thief
20%inclusion1 decks5 decks
13%synergy
Creatures
Scrabbling Skullcrab
60%inclusion3 decks5 decks
59%synergy
Starfield Mystic
60%inclusion3 decks5 decks
54%synergy
Overlord of the Floodpits
60%inclusion3 decks5 decks
57%synergy
Victor, Valgavoth's Seneschal
60%inclusion3 decks5 decks
58%synergy
Enduring Curiosity
60%inclusion3 decks5 decks
52%synergy
Entity Tracker
60%inclusion3 decks5 decks
54%synergy
Archon of Sun's Grace
40%inclusion2 decks5 decks
36%synergy
Soaring Lightbringer
40%inclusion2 decks5 decks
36%synergy
Silent Hallcreeper
40%inclusion2 decks5 decks
35%synergy
Moon-Blessed Cleric
40%inclusion2 decks5 decks
35%synergy
Athreos, Shroud-Veiled
40%inclusion2 decks5 decks
36%synergy
Spirited Companion
40%inclusion2 decks5 decks
38%synergy
Fear of Sleep Paralysis
40%inclusion2 decks5 decks
35%synergy
Archetype of Imagination
40%inclusion2 decks5 decks
35%synergy
Ancient Cellarspawn
40%inclusion2 decks5 decks
37%synergy
Auramancer
40%inclusion2 decks5 decks
37%synergy
Grim Guardian
40%inclusion2 decks5 decks
38%synergy
Ghostly Dancers
40%inclusion2 decks5 decks
38%synergy
Ondu Spiritdancer
40%inclusion2 decks5 decks
34%synergy
Alseid of Life's Bounty
40%inclusion2 decks5 decks
39%synergy
Twilight Diviner
33%inclusion1 decks3 decks
32%synergy
Witch Enchanter
20%inclusion1 decks5 decks
13%synergy
Lotho, Corrupt Shirriff
20%inclusion1 decks5 decks
3%synergy
Syr Konrad, the Grim
20%inclusion1 decks5 decks
15%synergy
Kor Spiritdancer
20%inclusion1 decks5 decks
19%synergy
Agent of Erebos
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
Boggart Trawler
20%inclusion1 decks5 decks
17%synergy
Overlord of the Mistmoors
20%inclusion1 decks5 decks
18%synergy
Stitcher's Supplier
20%inclusion1 decks5 decks
19%synergy
Skullsnap Nuisance
20%inclusion1 decks5 decks
20%synergy
Balemurk Leech
20%inclusion1 decks5 decks
19%synergy
Kor Cartographer
20%inclusion1 decks5 decks
20%synergy
Laboratory Maniac
20%inclusion1 decks5 decks
17%synergy
Neerdiv, Devious Diver
20%inclusion1 decks5 decks
20%synergy
Aminatou, Veil Piercer
20%inclusion1 decks5 decks
19%synergy
Heliod, the Radiant Dawn
20%inclusion1 decks5 decks
17%synergy
Zur, Eternal Schemer
20%inclusion1 decks5 decks
17%synergy
Zur the Enchanter
20%inclusion1 decks5 decks
15%synergy
Thoughtrender Lamia
20%inclusion1 decks5 decks
20%synergy
Stinkweed Imp
20%inclusion1 decks5 decks
20%synergy
Slickshot Lockpicker
20%inclusion1 decks5 decks
20%synergy
Mindwrack Harpy
20%inclusion1 decks5 decks
20%synergy
Lier, Disciple of the Drowned
20%inclusion1 decks5 decks
20%synergy
Millikin
20%inclusion1 decks5 decks
19%synergy
Emet-Selch of the Third Seat
20%inclusion1 decks5 decks
11%synergy
Instants
Swords to Plowshares
60%inclusion3 decks5 decks
-8%synergy
Counterspell
60%inclusion3 decks5 decks
18%synergy
An Offer You Can't Refuse
40%inclusion2 decks5 decks
12%synergy
Negate
40%inclusion2 decks5 decks
24%synergy
Void Rend
40%inclusion2 decks5 decks
5%synergy
Arcane Denial
40%inclusion2 decks5 decks
20%synergy
Path to Exile
40%inclusion2 decks5 decks
-2%synergy
Frantic Search
20%inclusion1 decks5 decks
1%synergy
Dovin's Veto
20%inclusion1 decks5 decks
-6%synergy
Confounding Riddle
20%inclusion1 decks5 decks
20%synergy
Defabricate
20%inclusion1 decks5 decks
20%synergy
Winds of Rebuke
20%inclusion1 decks5 decks
20%synergy
Thirst for Meaning
20%inclusion1 decks5 decks
19%synergy
Slip Out the Back
20%inclusion1 decks5 decks
19%synergy
Disallow
20%inclusion1 decks5 decks
16%synergy
Stroke of Midnight
20%inclusion1 decks5 decks
12%synergy
Inkshield
20%inclusion1 decks5 decks
10%synergy
Don't Make a Sound
20%inclusion1 decks5 decks
20%synergy
Rowan's Grim Search
20%inclusion1 decks5 decks
20%synergy
Sorceries
Sevinne's Reclamation
60%inclusion3 decks5 decks
51%synergy
Extinguish All Hope
60%inclusion3 decks5 decks
58%synergy
Redress Fate
60%inclusion3 decks5 decks
55%synergy
Windfall
40%inclusion2 decks5 decks
27%synergy
Austere Command
40%inclusion2 decks5 decks
32%synergy
Time Wipe
40%inclusion2 decks5 decks
34%synergy
Cut Your Losses
40%inclusion2 decks5 decks
40%synergy
Buried Alive
40%inclusion2 decks5 decks
36%synergy
Singularity Rupture
40%inclusion2 decks5 decks
38%synergy
Supreme Verdict
20%inclusion1 decks5 decks
5%synergy
Triumphant Reckoning
20%inclusion1 decks5 decks
20%synergy
Open the Vaults
20%inclusion1 decks5 decks
19%synergy
Wrath of God
20%inclusion1 decks5 decks
16%synergy
Glimpse the Unthinkable
20%inclusion1 decks5 decks
20%synergy
Night's Whisper
20%inclusion1 decks5 decks
17%synergy
Single Combat
20%inclusion1 decks5 decks
19%synergy
Brilliant Restoration
20%inclusion1 decks5 decks
18%synergy
Living Death
20%inclusion1 decks5 decks
15%synergy
Twilight's Call
20%inclusion1 decks5 decks
20%synergy
Final Vengeance
20%inclusion1 decks5 decks
20%synergy
Day of Judgment
20%inclusion1 decks5 decks
19%synergy
Promise of Loyalty
20%inclusion1 decks5 decks
16%synergy
Traumatize
20%inclusion1 decks5 decks
20%synergy
Dance of the Manse
20%inclusion1 decks5 decks
17%synergy
Space-Time Anomaly
20%inclusion1 decks5 decks
18%synergy
Utility Artifacts
Wayfarer's Bauble
40%inclusion2 decks5 decks
33%synergy
Swiftfoot Boots
40%inclusion2 decks5 decks
16%synergy
Riverchurn Monument
20%inclusion1 decks5 decks
20%synergy
Expedition Map
20%inclusion1 decks5 decks
19%synergy
Enchantments
Darksteel Mutation
60%inclusion3 decks5 decks
54%synergy
Ripples of Undeath
60%inclusion3 decks5 decks
57%synergy
Imprisoned in the Moon
60%inclusion3 decks5 decks
53%synergy
Sigil of the Empty Throne
60%inclusion3 decks5 decks
54%synergy
Estrid's Invocation
60%inclusion3 decks5 decks
55%synergy
The Tale of Tamiyo
60%inclusion3 decks5 decks
60%synergy
Sheltered by Ghosts
60%inclusion3 decks5 decks
57%synergy
Shark Typhoon
40%inclusion2 decks5 decks
34%synergy
Sphere of Safety
40%inclusion2 decks5 decks
31%synergy
All That Glitters
40%inclusion2 decks5 decks
32%synergy
Secret Arcade // Dusty Parlor
40%inclusion2 decks5 decks
36%synergy
Stillness in Motion
40%inclusion2 decks5 decks
40%synergy
Ethereal Armor
40%inclusion2 decks5 decks
36%synergy
Propaganda
40%inclusion2 decks5 decks
11%synergy
Seal of Removal
40%inclusion2 decks5 decks
39%synergy
Mornsong Aria
33%inclusion1 decks3 decks
33%synergy
Stormchaser's Talent
20%inclusion1 decks5 decks
20%synergy
Minimus Containment
20%inclusion1 decks5 decks
20%synergy
Founding the Third Path
20%inclusion1 decks5 decks
20%synergy
Cramped Vents // Access Maze
20%inclusion1 decks5 decks
18%synergy
Cacophony Unleashed
20%inclusion1 decks5 decks
18%synergy
Court of Cunning
20%inclusion1 decks5 decks
19%synergy
Dissipation Field
20%inclusion1 decks5 decks
19%synergy
Coerced to Kill
20%inclusion1 decks5 decks
20%synergy
Unable to Scream
20%inclusion1 decks5 decks
19%synergy
The Eldest Reborn
20%inclusion1 decks5 decks
18%synergy
Out of the Tombs
20%inclusion1 decks5 decks
20%synergy
Touch the Spirit Realm
20%inclusion1 decks5 decks
18%synergy
Authority of the Consuls
20%inclusion1 decks5 decks
6%synergy
Chains of Custody
20%inclusion1 decks5 decks
19%synergy
Hopeless Nightmare
20%inclusion1 decks5 decks
20%synergy
Necromancy
20%inclusion1 decks5 decks
16%synergy
Mantle of the Ancients
20%inclusion1 decks5 decks
17%synergy
Stasis Field
20%inclusion1 decks5 decks
20%synergy
Spirit-Sister's Call
20%inclusion1 decks5 decks
19%synergy
Copy Enchantment
20%inclusion1 decks5 decks
15%synergy
Mystic Remora
20%inclusion1 decks5 decks
-0%synergy
Bottomless Pit
20%inclusion1 decks5 decks
20%synergy
Disturbing Conversion
20%inclusion1 decks5 decks
20%synergy
Restricted Office // Lecture Hall
20%inclusion1 decks5 decks
18%synergy
Secrets of the Dead
20%inclusion1 decks5 decks
20%synergy
Oblivion Ring
20%inclusion1 decks5 decks
19%synergy
Dress Down
20%inclusion1 decks5 decks
18%synergy
Redemption Arc
20%inclusion1 decks5 decks
20%synergy
Eaten by Piranhas
20%inclusion1 decks5 decks
19%synergy
Spirit Link
20%inclusion1 decks5 decks
19%synergy
Land Tax
20%inclusion1 decks5 decks
14%synergy
Solitary Confinement
20%inclusion1 decks5 decks
18%synergy
Nowhere to Run
20%inclusion1 decks5 decks
19%synergy
Dog Umbra
20%inclusion1 decks5 decks
20%synergy
Planeswalkers
Jace, Memory Adept
20%inclusion1 decks5 decks
20%synergy
Jace, Wielder of Mysteries
20%inclusion1 decks5 decks
18%synergy
Utility Lands
Bojuka Bog
80%inclusion4 decks5 decks
53%synergy
Hall of Heliod's Generosity
80%inclusion4 decks5 decks
67%synergy
Reliquary Tower
40%inclusion2 decks5 decks
6%synergy
Mystic Sanctuary
20%inclusion1 decks5 decks
16%synergy
Barren Moor
20%inclusion1 decks5 decks
18%synergy
Dalkovan Encampment
20%inclusion1 decks5 decks
20%synergy
Windbrisk Heights
20%inclusion1 decks5 decks
19%synergy
Halimar Depths
20%inclusion1 decks5 decks
15%synergy
Lonely Sandbar
20%inclusion1 decks5 decks
18%synergy
Secluded Steppe
20%inclusion1 decks5 decks
18%synergy
Restless Anchorage
20%inclusion1 decks5 decks
19%synergy
Drownyard Temple
20%inclusion1 decks5 decks
20%synergy
Cephalid Coliseum
20%inclusion1 decks5 decks
16%synergy
Dakmor Salvage
20%inclusion1 decks5 decks
20%synergy
Temple of the False God
20%inclusion1 decks5 decks
12%synergy
Vault of the Archangel
20%inclusion1 decks5 decks
14%synergy
Rogue's Passage
20%inclusion1 decks5 decks
10%synergy
Mana Artifacts
Arcane Signet
80%inclusion4 decks5 decks
-8%synergy
Sol Ring
80%inclusion4 decks5 decks
-10%synergy
Talisman of Progress
60%inclusion3 decks5 decks
15%synergy
Talisman of Dominance
60%inclusion3 decks5 decks
10%synergy
Fellwar Stone
60%inclusion3 decks5 decks
27%synergy
Talisman of Hierarchy
60%inclusion3 decks5 decks
15%synergy
Mind Stone
40%inclusion2 decks5 decks
28%synergy
Azorius Signet
40%inclusion2 decks5 decks
11%synergy
Commander's Sphere
20%inclusion1 decks5 decks
3%synergy
Dimir Signet
20%inclusion1 decks5 decks
-10%synergy
Orzhov Signet
20%inclusion1 decks5 decks
-11%synergy
Lands
Command Tower
100%inclusion5 decks5 decks
7%synergy
Exotic Orchard
100%inclusion5 decks5 decks
41%synergy
Swamp
100%inclusion5 decks5 decks
8%synergy
Island
100%inclusion5 decks5 decks
7%synergy
Plains
100%inclusion5 decks5 decks
8%synergy
Glacial Fortress
80%inclusion4 decks5 decks
36%synergy
Arcane Sanctum
80%inclusion4 decks5 decks
26%synergy
Azorius Chancery
60%inclusion3 decks5 decks
47%synergy
Myriad Landscape
60%inclusion3 decks5 decks
53%synergy
Contaminated Landscape
60%inclusion3 decks5 decks
47%synergy
Caves of Koilos
60%inclusion3 decks5 decks
24%synergy
Dimir Aqueduct
60%inclusion3 decks5 decks
47%synergy
Prairie Stream
60%inclusion3 decks5 decks
19%synergy
Ash Barrens
60%inclusion3 decks5 decks
49%synergy
Valgavoth's Lair
60%inclusion3 decks5 decks
58%synergy
Isolated Chapel
60%inclusion3 decks5 decks
18%synergy
Underground River
60%inclusion3 decks5 decks
25%synergy
Temple of Enlightenment
60%inclusion3 decks5 decks
45%synergy
Evolving Wilds
60%inclusion3 decks5 decks
36%synergy
Path of Ancestry
60%inclusion3 decks5 decks
32%synergy
Adarkar Wastes
60%inclusion3 decks5 decks
27%synergy
Temple of Silence
60%inclusion3 decks5 decks
42%synergy
Terramorphic Expanse
40%inclusion2 decks5 decks
25%synergy
Temple of Deceit
40%inclusion2 decks5 decks
23%synergy
Skycloud Expanse
40%inclusion2 decks5 decks
25%synergy
Orzhov Basilica
40%inclusion2 decks5 decks
25%synergy
Sunken Hollow
40%inclusion2 decks5 decks
0%synergy
Escape Tunnel
20%inclusion1 decks5 decks
19%synergy
Witch Enchanter
20%inclusion1 decks5 decks
13%synergy
Undercity Sewers
20%inclusion1 decks5 decks
5%synergy
Idyllic Beachfront
20%inclusion1 decks5 decks
16%synergy
Abandoned Campground
20%inclusion1 decks5 decks
19%synergy
Concealed Courtyard
20%inclusion1 decks5 decks
16%synergy
Irrigated Farmland
20%inclusion1 decks5 decks
13%synergy
Fetid Heath
20%inclusion1 decks5 decks
6%synergy
Port Town
20%inclusion1 decks5 decks
3%synergy
Hydroelectric Specimen
20%inclusion1 decks5 decks
17%synergy
Boggart Trawler
20%inclusion1 decks5 decks
17%synergy
Drowned Catacomb
20%inclusion1 decks5 decks
-19%synergy
Seachrome Coast
20%inclusion1 decks5 decks
16%synergy
Darkslick Shores
20%inclusion1 decks5 decks
16%synergy
Sunlit Marsh
20%inclusion1 decks5 decks
15%synergy
Murky Sewer
20%inclusion1 decks5 decks
20%synergy
Neglected Manor
20%inclusion1 decks5 decks
20%synergy
Shineshadow Snarl
20%inclusion1 decks5 decks
9%synergy
Meticulous Archive
20%inclusion1 decks5 decks
6%synergy
Obscura Storefront
20%inclusion1 decks5 decks
11%synergy
Sunken Ruins
20%inclusion1 decks5 decks
10%synergy
Mystic Gate
20%inclusion1 decks5 decks
14%synergy
Watery Grave
20%inclusion1 decks5 decks
-31%synergy
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