The Master of Keys (Commander) - Budget Mill

The Master of Keys
Rank #303
33decks
As CommanderAs CardAverage DeckDecksView Precon
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Budget
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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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Super Intelligence
50%inclusion1 decks2 decks
50%synergy
High Synergy Cards
Inquisitive Glimmer
97%inclusion32 decks33 decks
90%synergy
Scrabbling Skullcrab
73%inclusion24 decks33 decks
72%synergy
Starfield Mystic
70%inclusion23 decks33 decks
63%synergy
Fear of Impostors
64%inclusion21 decks33 decks
62%synergy
Victor, Valgavoth's Seneschal
61%inclusion20 decks33 decks
59%synergy
Doomwake Giant
64%inclusion21 decks33 decks
58%synergy
Cemetery Tampering
58%inclusion19 decks33 decks
57%synergy
Mesa Enchantress
64%inclusion21 decks33 decks
55%synergy
Entity Tracker
61%inclusion20 decks33 decks
55%synergy
The Tale of Tamiyo
55%inclusion18 decks33 decks
54%synergy
Top Cards
Demon of Fate's Design
52%inclusion17 decks33 decks
46%synergy
Gravebreaker Lamia
48%inclusion16 decks33 decks
47%synergy
Seal of Cleansing
48%inclusion16 decks33 decks
47%synergy
Sigil of the Empty Throne
45%inclusion15 decks33 decks
40%synergy
Defiled Crypt // Cadaver Lab
45%inclusion15 decks33 decks
45%synergy
Singularity Rupture
43%inclusion10 decks23 decks
41%synergy
Grasp of Fate
42%inclusion14 decks33 decks
36%synergy
Fear of Sleep Paralysis
42%inclusion14 decks33 decks
37%synergy
Otherworldly Gaze
39%inclusion13 decks33 decks
37%synergy
Ghostly Dancers
39%inclusion13 decks33 decks
37%synergy
Creatures
Skullsnap Nuisance
33%inclusion11 decks33 decks
33%synergy
Aminatou, Veil Piercer
33%inclusion11 decks33 decks
32%synergy
Sage of Mysteries
30%inclusion10 decks33 decks
30%synergy
Heliod, the Radiant Dawn
30%inclusion10 decks33 decks
27%synergy
Soaring Lightbringer
27%inclusion9 decks33 decks
23%synergy
Grim Guardian
27%inclusion9 decks33 decks
25%synergy
Ondu Spiritdancer
27%inclusion9 decks33 decks
21%synergy
Mindwrack Harpy
27%inclusion9 decks33 decks
27%synergy
Overlord of the Floodpits
24%inclusion8 decks33 decks
21%synergy
Archon of Sun's Grace
24%inclusion8 decks33 decks
20%synergy
Balemurk Leech
24%inclusion8 decks33 decks
24%synergy
Alseid of Life's Bounty
24%inclusion8 decks33 decks
23%synergy
Fear of Surveillance
21%inclusion7 decks33 decks
21%synergy
Silent Hallcreeper
21%inclusion7 decks33 decks
17%synergy
Moon-Blessed Cleric
21%inclusion7 decks33 decks
17%synergy
Spirited Companion
21%inclusion7 decks33 decks
19%synergy
Enduring Curiosity
21%inclusion7 decks33 decks
13%synergy
Creeping Peeper
21%inclusion7 decks33 decks
21%synergy
Zur, Eternal Schemer
21%inclusion7 decks33 decks
18%synergy
Archetype of Imagination
18%inclusion6 decks33 decks
13%synergy
Millikin
18%inclusion6 decks33 decks
18%synergy
Killian, Decisive Mentor
17%inclusion2 decks12 decks
16%synergy
Starnheim Courser
15%inclusion5 decks33 decks
12%synergy
Ashiok's Reaper
15%inclusion5 decks33 decks
15%synergy
Overlord of the Mistmoors
15%inclusion5 decks33 decks
13%synergy
Gremlin Tamer
15%inclusion5 decks33 decks
14%synergy
Nashi, Searcher in the Dark
15%inclusion5 decks33 decks
15%synergy
Nightmare Shepherd
15%inclusion5 decks33 decks
13%synergy
Auramancer
15%inclusion5 decks33 decks
12%synergy
Zur the Enchanter
15%inclusion5 decks33 decks
10%synergy
Eiganjo Dynastorian
14%inclusion1 decks7 decks
13%synergy
Twilight Diviner
13%inclusion2 decks16 decks
11%synergy
Exhibition Tidecaller
13%inclusion1 decks8 decks
12%synergy
Solemn Simulacrum
12%inclusion4 decks33 decks
-1%synergy
Stenn, Paranoid Partisan
12%inclusion4 decks33 decks
11%synergy
The Ancient One
12%inclusion4 decks33 decks
12%synergy
Stitcher's Supplier
12%inclusion4 decks33 decks
11%synergy
Vega, the Watcher
12%inclusion4 decks33 decks
10%synergy
Appendage Amalgam
12%inclusion4 decks33 decks
12%synergy
Thassa's Devourer
12%inclusion4 decks33 decks
12%synergy
Callaphe, Beloved of the Sea
12%inclusion4 decks33 decks
11%synergy
Summon: Primal Odin
11%inclusion3 decks27 decks
7%synergy
Emet-Selch of the Third Seat
11%inclusion3 decks27 decks
2%synergy
Summon: Yojimbo
11%inclusion3 decks27 decks
10%synergy
Optimistic Scavenger
9.1%inclusion3 decks33 decks
9%synergy
Fear of Infinity
9.1%inclusion3 decks33 decks
9%synergy
Fear of Lost Teeth
9.1%inclusion3 decks33 decks
9%synergy
Agent of Erebos
9.1%inclusion3 decks33 decks
9%synergy
Overlord of the Balemurk
9.1%inclusion3 decks33 decks
7%synergy
Cruel Somnophage
9.1%inclusion3 decks33 decks
9%synergy
Instants
Swords to Plowshares
36%inclusion12 decks33 decks
-31%synergy
Counterspell
33%inclusion11 decks33 decks
-9%synergy
Negate
27%inclusion9 decks33 decks
11%synergy
Thirst for Meaning
27%inclusion9 decks33 decks
26%synergy
Frantic Search
21%inclusion7 decks33 decks
3%synergy
Dovin's Veto
18%inclusion6 decks33 decks
-8%synergy
Fact or Fiction
18%inclusion6 decks33 decks
15%synergy
Path to Exile
18%inclusion6 decks33 decks
-24%synergy
Drown in the Loch
12%inclusion4 decks33 decks
10%synergy
Return to Dust
12%inclusion4 decks33 decks
9%synergy
Void Rend
12%inclusion4 decks33 decks
-23%synergy
Arcane Denial
12%inclusion4 decks33 decks
-8%synergy
Swallowed by Leviathan
12%inclusion3 decks25 decks
11%synergy
Dreams of Laguna
11%inclusion3 decks27 decks
11%synergy
An Offer You Can't Refuse
9.1%inclusion3 decks33 decks
-19%synergy
Unwanted Remake
9.1%inclusion3 decks33 decks
9%synergy
Get Out
9.1%inclusion3 decks33 decks
9%synergy
Faithful Mending
9.1%inclusion3 decks33 decks
5%synergy
Inkshield
9.1%inclusion3 decks33 decks
-1%synergy
Waterlogged Teachings
9.1%inclusion3 decks33 decks
4%synergy
Rowan's Grim Search
9.1%inclusion3 decks33 decks
9%synergy
Refute
6.7%inclusion2 decks30 decks
4%synergy
Seized from Slumber
6.3%inclusion2 decks32 decks
6%synergy
Don't Make a Sound
6.3%inclusion2 decks32 decks
6%synergy
Absorb
6.1%inclusion2 decks33 decks
3%synergy
Telling Time
6.1%inclusion2 decks33 decks
4%synergy
Confounding Riddle
6.1%inclusion2 decks33 decks
6%synergy
Forbidden Alchemy
6.1%inclusion2 decks33 decks
5%synergy
Aetherize
6.1%inclusion2 decks33 decks
2%synergy
Infernal Grasp
6.1%inclusion2 decks33 decks
5%synergy
Anguished Unmaking
6.1%inclusion2 decks33 decks
-20%synergy
Despark
6.1%inclusion2 decks33 decks
-10%synergy
Visions of Beyond
6.1%inclusion2 decks33 decks
6%synergy
Utter End
6.1%inclusion2 decks33 decks
-0%synergy
Drown in Dreams
6.1%inclusion2 decks33 decks
6%synergy
Live or Die
6.1%inclusion2 decks33 decks
6%synergy
Fracture
6.1%inclusion2 decks33 decks
3%synergy
Sorceries
Redress Fate
36%inclusion12 decks33 decks
31%synergy
Extinguish All Hope
30%inclusion10 decks33 decks
29%synergy
Sevinne's Reclamation
24%inclusion8 decks33 decks
15%synergy
Space-Time Anomaly
22%inclusion5 decks23 decks
20%synergy
Dance of the Manse
18%inclusion6 decks33 decks
15%synergy
Time Wipe
15%inclusion5 decks33 decks
9%synergy
Glimpse the Unthinkable
15%inclusion5 decks33 decks
15%synergy
Demonic Counsel
15%inclusion5 decks33 decks
14%synergy
Restoration Seminar
14%inclusion1 decks7 decks
13%synergy
Windfall
12%inclusion4 decks33 decks
-1%synergy
Final Vengeance
12%inclusion4 decks33 decks
12%synergy
Commune with Evil
9.1%inclusion3 decks33 decks
9%synergy
Resurgent Belief
9.1%inclusion3 decks33 decks
7%synergy
Cut Your Losses
9.1%inclusion3 decks33 decks
9%synergy
Night's Whisper
9.1%inclusion3 decks33 decks
7%synergy
Living Death
9.1%inclusion3 decks33 decks
5%synergy
Traumatize
9.1%inclusion3 decks33 decks
9%synergy
Supreme Verdict
6.1%inclusion2 decks33 decks
-9%synergy
Austere Command
6.1%inclusion2 decks33 decks
-2%synergy
Asinine Antics
6.1%inclusion2 decks33 decks
5%synergy
Triumphant Reckoning
6.1%inclusion2 decks33 decks
6%synergy
Open the Vaults
6.1%inclusion2 decks33 decks
5%synergy
Split Up
6.1%inclusion2 decks33 decks
5%synergy
Wrath of God
6.1%inclusion2 decks33 decks
2%synergy
Feed the Swarm
6.1%inclusion2 decks33 decks
3%synergy
Diabolic Vision
6.1%inclusion2 decks33 decks
4%synergy
Starfall Invocation
6.1%inclusion2 decks33 decks
4%synergy
Buried Alive
6.1%inclusion2 decks33 decks
2%synergy
Brilliant Restoration
6.1%inclusion2 decks33 decks
4%synergy
Reanimate
6.1%inclusion2 decks33 decks
-10%synergy
Rite of the Moth
6.1%inclusion2 decks33 decks
6%synergy
Day of Judgment
6.1%inclusion2 decks33 decks
5%synergy
Utility Artifacts
Keys to the House
18%inclusion6 decks33 decks
18%synergy
Wayfarer's Bauble
9.1%inclusion3 decks33 decks
2%synergy
Matzalantli, the Great Door
6.1%inclusion2 decks33 decks
4%synergy
Swiftfoot Boots
6.1%inclusion2 decks33 decks
-18%synergy
Archaeomancer's Map
6.1%inclusion2 decks33 decks
0%synergy
Brainstone
6.1%inclusion2 decks33 decks
5%synergy
Enchantments
Restricted Office // Lecture Hall
36%inclusion12 decks33 decks
34%synergy
Dress Down
36%inclusion12 decks33 decks
34%synergy
Propaganda
36%inclusion12 decks33 decks
7%synergy
Seal of Removal
36%inclusion12 decks33 decks
36%synergy
Central Elevator // Promising Stairs
33%inclusion11 decks33 decks
33%synergy
All That Glitters
33%inclusion11 decks33 decks
25%synergy
Secret Arcade // Dusty Parlor
33%inclusion11 decks33 decks
29%synergy
Ethereal Armor
33%inclusion11 decks33 decks
29%synergy
Stillness in Motion
32%inclusion9 decks28 decks
32%synergy
Darksteel Mutation
30%inclusion10 decks33 decks
24%synergy
Underwater Tunnel // Slimy Aquarium
30%inclusion10 decks33 decks
30%synergy
Imprisoned in the Moon
30%inclusion10 decks33 decks
24%synergy
Shark Typhoon
30%inclusion10 decks33 decks
25%synergy
Sphere of Safety
30%inclusion10 decks33 decks
21%synergy
Amphibian Downpour
30%inclusion10 decks33 decks
26%synergy
Estrid's Invocation
27%inclusion9 decks33 decks
23%synergy
Secrets of the Dead
27%inclusion9 decks33 decks
27%synergy
Derelict Attic // Widow's Walk
25%inclusion8 decks32 decks
25%synergy
Cacophony Unleashed
24%inclusion8 decks33 decks
23%synergy
Unable to Scream
24%inclusion8 decks33 decks
23%synergy
Mirrormade
24%inclusion8 decks33 decks
14%synergy
Monologue Tax
24%inclusion8 decks33 decks
18%synergy
Polluted Cistern // Dim Oubliette
24%inclusion8 decks33 decks
24%synergy
Nowhere to Run
24%inclusion8 decks33 decks
23%synergy
Meat Locker // Drowned Diner
22%inclusion7 decks32 decks
21%synergy
Sheltered by Ghosts
21%inclusion7 decks33 decks
19%synergy
Cramped Vents // Access Maze
18%inclusion6 decks33 decks
16%synergy
Court of Cunning
18%inclusion6 decks33 decks
17%synergy
Ripples of Undeath
18%inclusion6 decks33 decks
15%synergy
Extravagant Replication
18%inclusion6 decks33 decks
13%synergy
Chronic Flooding
18%inclusion6 decks33 decks
18%synergy
Surgical Suite // Hospital Room
18%inclusion6 decks33 decks
18%synergy
Seal of Doom
18%inclusion6 decks33 decks
18%synergy
The Restoration of Eiganjo
18%inclusion6 decks33 decks
18%synergy
Animate Dead
18%inclusion6 decks33 decks
9%synergy
Dazzling Theater // Prop Room
18%inclusion6 decks33 decks
17%synergy
Mirror Room // Fractured Realm
18%inclusion6 decks33 decks
16%synergy
Utter Insignificance
15%inclusion5 decks33 decks
15%synergy
The Eldest Reborn
15%inclusion5 decks33 decks
13%synergy
Mystic Remora
15%inclusion5 decks33 decks
-5%synergy
Funeral Room // Awakening Hall
15%inclusion5 decks33 decks
14%synergy
Static Prison
15%inclusion5 decks33 decks
15%synergy
Bottomless Pool // Locker Room
15%inclusion5 decks33 decks
13%synergy
Eaten by Piranhas
15%inclusion5 decks33 decks
14%synergy
Ghostly Prison
15%inclusion5 decks33 decks
-8%synergy
Search for Azcanta
15%inclusion5 decks33 decks
14%synergy
Changing Loyalty
14%inclusion1 decks7 decks
13%synergy
Founding the Third Path
12%inclusion4 decks33 decks
12%synergy
Trapped in the Screen
12%inclusion4 decks33 decks
12%synergy
Soul Snare
12%inclusion4 decks33 decks
12%synergy
Battles
Invasion of Theros
15%inclusion5 decks33 decks
14%synergy
Planeswalkers
Jace, Wielder of Mysteries
6.1%inclusion2 decks33 decks
4%synergy
Utility Lands
Bojuka Bog
45%inclusion15 decks33 decks
19%synergy
Hall of Heliod's Generosity
24%inclusion8 decks33 decks
11%synergy
Nephalia Drownyard
15%inclusion5 decks33 decks
15%synergy
Drownyard Temple
12%inclusion4 decks33 decks
12%synergy
Reliquary Tower
9.1%inclusion3 decks33 decks
-25%synergy
Cephalid Coliseum
9.1%inclusion3 decks33 decks
5%synergy
Barren Moor
6.1%inclusion2 decks33 decks
4%synergy
Halimar Depths
6.1%inclusion2 decks33 decks
1%synergy
Temple of the False God
6.1%inclusion2 decks33 decks
-2%synergy
Rogue's Passage
6.1%inclusion2 decks33 decks
-4%synergy
Mana Artifacts
Arcane Signet
85%inclusion28 decks33 decks
-3%synergy
Sol Ring
79%inclusion26 decks33 decks
-11%synergy
Orzhov Signet
61%inclusion20 decks33 decks
29%synergy
Azorius Signet
61%inclusion20 decks33 decks
31%synergy
Talisman of Progress
42%inclusion14 decks33 decks
-2%synergy
Dimir Signet
36%inclusion12 decks33 decks
6%synergy
Talisman of Hierarchy
27%inclusion9 decks33 decks
-17%synergy
Commander's Sphere
24%inclusion8 decks33 decks
7%synergy
Fellwar Stone
24%inclusion8 decks33 decks
-9%synergy
Talisman of Dominance
21%inclusion7 decks33 decks
-29%synergy
Mind Stone
18%inclusion6 decks33 decks
6%synergy
Charcoal Diamond
6.1%inclusion2 decks33 decks
5%synergy
Sky Diamond
6.1%inclusion2 decks33 decks
5%synergy
Marble Diamond
6.1%inclusion2 decks33 decks
5%synergy
Lands
Swamp
100%inclusion33 decks33 decks
8%synergy
Island
100%inclusion33 decks33 decks
7%synergy
Plains
100%inclusion33 decks33 decks
8%synergy
Command Tower
94%inclusion31 decks33 decks
1%synergy
Arcane Sanctum
88%inclusion29 decks33 decks
34%synergy
Exotic Orchard
76%inclusion25 decks33 decks
17%synergy
Temple of Deceit
58%inclusion19 decks33 decks
41%synergy
Temple of Enlightenment
58%inclusion19 decks33 decks
42%synergy
Adarkar Wastes
58%inclusion19 decks33 decks
25%synergy
Temple of Silence
58%inclusion19 decks33 decks
39%synergy
Evolving Wilds
55%inclusion18 decks33 decks
30%synergy
Caves of Koilos
48%inclusion16 decks33 decks
13%synergy
Glacial Fortress
45%inclusion15 decks33 decks
2%synergy
Terramorphic Expanse
45%inclusion15 decks33 decks
30%synergy
Contaminated Landscape
45%inclusion15 decks33 decks
32%synergy
Valgavoth's Lair
45%inclusion15 decks33 decks
43%synergy
Prairie Stream
42%inclusion14 decks33 decks
2%synergy
Isolated Chapel
42%inclusion14 decks33 decks
0%synergy
Underground River
42%inclusion14 decks33 decks
7%synergy
Azorius Chancery
39%inclusion13 decks33 decks
26%synergy
Sunken Hollow
39%inclusion13 decks33 decks
-0%synergy
Dimir Aqueduct
36%inclusion12 decks33 decks
24%synergy
Orzhov Basilica
33%inclusion11 decks33 decks
19%synergy
Tainted Field
30%inclusion10 decks33 decks
23%synergy
Path of Ancestry
30%inclusion10 decks33 decks
2%synergy
Obscura Storefront
30%inclusion10 decks33 decks
21%synergy
Shineshadow Snarl
27%inclusion9 decks33 decks
16%synergy
Tainted Isle
24%inclusion8 decks33 decks
18%synergy
Darkwater Catacombs
24%inclusion8 decks33 decks
9%synergy
Ash Barrens
24%inclusion8 decks33 decks
14%synergy
Drowned Catacomb
24%inclusion8 decks33 decks
-14%synergy
Myriad Landscape
21%inclusion7 decks33 decks
14%synergy
Irrigated Farmland
21%inclusion7 decks33 decks
14%synergy
Port Town
21%inclusion7 decks33 decks
4%synergy
Skycloud Expanse
21%inclusion7 decks33 decks
6%synergy
Fetid Heath
15%inclusion5 decks33 decks
2%synergy
Choked Estuary
15%inclusion5 decks33 decks
-1%synergy
Desolate Mire
12%inclusion4 decks33 decks
5%synergy
Conduit Pylons
9.1%inclusion3 decks33 decks
9%synergy
Glasswing Grace
9.1%inclusion3 decks33 decks
6%synergy
Thriving Isle
9.1%inclusion3 decks33 decks
5%synergy
Thriving Moor
9.1%inclusion3 decks33 decks
5%synergy
Thriving Heath
9.1%inclusion3 decks33 decks
5%synergy
Waterlogged Teachings
9.1%inclusion3 decks33 decks
4%synergy
Floodfarm Verge
9.1%inclusion3 decks33 decks
-2%synergy
Vibrant Cityscape
8.7%inclusion2 decks23 decks
8%synergy
Escape Tunnel
6.1%inclusion2 decks33 decks
5%synergy
Abandoned Campground
6.1%inclusion2 decks33 decks
5%synergy
Fetid Pools
6.1%inclusion2 decks33 decks
-1%synergy
Hidden Grotto
6.1%inclusion2 decks33 decks
6%synergy
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