The Master of Keys (Commander) - Budget Mill

The Master of Keys
Rank #306
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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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Twilight Diviner
14%inclusion1 decks7 decks
13%synergy
Noggle the Mind
14%inclusion1 decks7 decks
14%synergy
Mornsong Aria
13%inclusion1 decks8 decks
12%synergy
High Synergy Cards
Inquisitive Glimmer
93%inclusion26 decks28 decks
85%synergy
Scrabbling Skullcrab
79%inclusion22 decks28 decks
78%synergy
Starfield Mystic
71%inclusion20 decks28 decks
65%synergy
Fear of Impostors
64%inclusion18 decks28 decks
63%synergy
Mesa Enchantress
71%inclusion20 decks28 decks
62%synergy
Victor, Valgavoth's Seneschal
64%inclusion18 decks28 decks
62%synergy
Doomwake Giant
68%inclusion19 decks28 decks
62%synergy
Defiled Crypt // Cadaver Lab
57%inclusion16 decks28 decks
56%synergy
Entity Tracker
57%inclusion16 decks28 decks
51%synergy
Demon of Fate's Design
54%inclusion15 decks28 decks
48%synergy
Top Cards
Fear of Sleep Paralysis
54%inclusion15 decks28 decks
48%synergy
Sigil of the Empty Throne
50%inclusion14 decks28 decks
44%synergy
Cemetery Tampering
46%inclusion13 decks28 decks
46%synergy
Seal of Cleansing
46%inclusion13 decks28 decks
45%synergy
Secret Arcade // Dusty Parlor
46%inclusion13 decks28 decks
41%synergy
Sphere of Safety
43%inclusion12 decks28 decks
33%synergy
The Tale of Tamiyo
43%inclusion12 decks28 decks
42%synergy
Swords to Plowshares
43%inclusion12 decks28 decks
-25%synergy
Heliod, the Radiant Dawn
43%inclusion12 decks28 decks
39%synergy
Ghostly Dancers
43%inclusion12 decks28 decks
40%synergy
Creatures
Soaring Lightbringer
39%inclusion11 decks28 decks
34%synergy
Skullsnap Nuisance
39%inclusion11 decks28 decks
39%synergy
Gravebreaker Lamia
36%inclusion10 decks28 decks
35%synergy
Sage of Mysteries
36%inclusion10 decks28 decks
35%synergy
Aminatou, Veil Piercer
36%inclusion10 decks28 decks
34%synergy
Ondu Spiritdancer
36%inclusion10 decks28 decks
29%synergy
Moon-Blessed Cleric
29%inclusion8 decks28 decks
24%synergy
Overlord of the Floodpits
25%inclusion7 decks28 decks
21%synergy
Archon of Sun's Grace
25%inclusion7 decks28 decks
20%synergy
Silent Hallcreeper
25%inclusion7 decks28 decks
21%synergy
Balemurk Leech
25%inclusion7 decks28 decks
24%synergy
Archetype of Imagination
25%inclusion7 decks28 decks
20%synergy
Creeping Peeper
25%inclusion7 decks28 decks
25%synergy
Grim Guardian
25%inclusion7 decks28 decks
22%synergy
Spirited Companion
21%inclusion6 decks28 decks
19%synergy
Enduring Curiosity
21%inclusion6 decks28 decks
14%synergy
Alseid of Life's Bounty
21%inclusion6 decks28 decks
20%synergy
Solemn Simulacrum
18%inclusion5 decks28 decks
3%synergy
Starnheim Courser
18%inclusion5 decks28 decks
14%synergy
Overlord of the Balemurk
18%inclusion5 decks28 decks
16%synergy
Ashiok's Reaper
18%inclusion5 decks28 decks
17%synergy
Mindwrack Harpy
18%inclusion5 decks28 decks
18%synergy
Fear of Infinity
14%inclusion4 decks28 decks
14%synergy
The Mindskinner
14%inclusion4 decks28 decks
13%synergy
Agent of Erebos
14%inclusion4 decks28 decks
14%synergy
Fear of Surveillance
14%inclusion4 decks28 decks
14%synergy
The Ancient One
14%inclusion4 decks28 decks
14%synergy
Overlord of the Mistmoors
14%inclusion4 decks28 decks
12%synergy
Arvinox, the Mind Flail
14%inclusion4 decks28 decks
13%synergy
Gremlin Tamer
14%inclusion4 decks28 decks
13%synergy
Nashi, Searcher in the Dark
14%inclusion4 decks28 decks
14%synergy
Nightmare Shepherd
14%inclusion4 decks28 decks
12%synergy
Auramancer
14%inclusion4 decks28 decks
11%synergy
Abdel Adrian, Gorion's Ward
14%inclusion4 decks28 decks
13%synergy
Zur, Eternal Schemer
14%inclusion4 decks28 decks
11%synergy
Zur the Enchanter
14%inclusion4 decks28 decks
9%synergy
Millikin
14%inclusion4 decks28 decks
14%synergy
Optimistic Scavenger
11%inclusion3 decks28 decks
10%synergy
Fear of Isolation
11%inclusion3 decks28 decks
10%synergy
Fear of Lost Teeth
11%inclusion3 decks28 decks
11%synergy
Stitcher's Supplier
11%inclusion3 decks28 decks
10%synergy
Vega, the Watcher
11%inclusion3 decks28 decks
9%synergy
Athreos, Shroud-Veiled
11%inclusion3 decks28 decks
6%synergy
Appendage Amalgam
11%inclusion3 decks28 decks
11%synergy
Underworld Coinsmith
11%inclusion3 decks28 decks
10%synergy
Thassa's Devourer
11%inclusion3 decks28 decks
11%synergy
Braids, Arisen Nightmare
11%inclusion3 decks28 decks
10%synergy
Ghostly Keybearer
11%inclusion3 decks28 decks
11%synergy
Callaphe, Beloved of the Sea
11%inclusion3 decks28 decks
9%synergy
Summon: Primal Odin
10%inclusion2 decks20 decks
6%synergy
Instants
Otherworldly Gaze
36%inclusion10 decks28 decks
34%synergy
Counterspell
32%inclusion9 decks28 decks
-9%synergy
Thirst for Meaning
29%inclusion8 decks28 decks
27%synergy
Frantic Search
21%inclusion6 decks28 decks
4%synergy
Return to Dust
21%inclusion6 decks28 decks
18%synergy
Fact or Fiction
21%inclusion6 decks28 decks
18%synergy
Negate
18%inclusion5 decks28 decks
1%synergy
Arcane Denial
18%inclusion5 decks28 decks
-2%synergy
Path to Exile
18%inclusion5 decks28 decks
-24%synergy
Dovin's Veto
14%inclusion4 decks28 decks
-11%synergy
Get Out
14%inclusion4 decks28 decks
14%synergy
Utter End
14%inclusion4 decks28 decks
8%synergy
Telling Time
11%inclusion3 decks28 decks
8%synergy
Unwanted Remake
11%inclusion3 decks28 decks
10%synergy
Waterlogged Teachings
11%inclusion3 decks28 decks
6%synergy
Dreams of Laguna
10%inclusion2 decks20 decks
10%synergy
Seized from Slumber
7.4%inclusion2 decks27 decks
7%synergy
Drown in the Loch
7.1%inclusion2 decks28 decks
5%synergy
An Offer You Can't Refuse
7.1%inclusion2 decks28 decks
-20%synergy
Brainstorm
7.1%inclusion2 decks28 decks
-10%synergy
Twist Reality
7.1%inclusion2 decks28 decks
7%synergy
Void Rend
7.1%inclusion2 decks28 decks
-27%synergy
Anguished Unmaking
7.1%inclusion2 decks28 decks
-18%synergy
Faithful Mending
7.1%inclusion2 decks28 decks
3%synergy
Despark
7.1%inclusion2 decks28 decks
-9%synergy
Visions of Beyond
7.1%inclusion2 decks28 decks
7%synergy
Drown in Dreams
7.1%inclusion2 decks28 decks
7%synergy
Inkshield
7.1%inclusion2 decks28 decks
-2%synergy
Restoration Magic
5.6%inclusion1 decks18 decks
3%synergy
Swallowed by Leviathan
5.6%inclusion1 decks18 decks
5%synergy
Espers to Magicite
5.0%inclusion1 decks20 decks
5%synergy
Sorceries
Redress Fate
43%inclusion12 decks28 decks
37%synergy
Singularity Rupture
38%inclusion6 decks16 decks
35%synergy
Extinguish All Hope
29%inclusion8 decks28 decks
27%synergy
Sevinne's Reclamation
25%inclusion7 decks28 decks
16%synergy
Space-Time Anomaly
25%inclusion4 decks16 decks
23%synergy
Demonic Counsel
21%inclusion6 decks28 decks
20%synergy
Dance of the Manse
18%inclusion5 decks28 decks
14%synergy
Commune with Evil
14%inclusion4 decks28 decks
14%synergy
Time Wipe
14%inclusion4 decks28 decks
7%synergy
Resurgent Belief
11%inclusion3 decks28 decks
9%synergy
Wrath of God
11%inclusion3 decks28 decks
7%synergy
Terminus
11%inclusion3 decks28 decks
7%synergy
Glimpse the Unthinkable
11%inclusion3 decks28 decks
10%synergy
Diabolic Vision
11%inclusion3 decks28 decks
8%synergy
Buried Alive
11%inclusion3 decks28 decks
7%synergy
Living Death
11%inclusion3 decks28 decks
6%synergy
Final Vengeance
11%inclusion3 decks28 decks
11%synergy
Ponder
7.1%inclusion2 decks28 decks
-2%synergy
Supreme Verdict
7.1%inclusion2 decks28 decks
-8%synergy
Windfall
7.1%inclusion2 decks28 decks
-7%synergy
Triumphant Reckoning
7.1%inclusion2 decks28 decks
7%synergy
Cut Your Losses
7.1%inclusion2 decks28 decks
7%synergy
Feed the Swarm
7.1%inclusion2 decks28 decks
4%synergy
Night's Whisper
7.1%inclusion2 decks28 decks
5%synergy
Brilliant Restoration
7.1%inclusion2 decks28 decks
5%synergy
Rite of Oblivion
7.1%inclusion2 decks28 decks
6%synergy
Toxic Deluge
7.1%inclusion2 decks28 decks
-12%synergy
Aminatou's Augury
7.1%inclusion2 decks28 decks
6%synergy
Day of Judgment
7.1%inclusion2 decks28 decks
6%synergy
Traumatize
7.1%inclusion2 decks28 decks
7%synergy
Utility Artifacts
Keys to the House
25%inclusion7 decks28 decks
25%synergy
Brainstone
11%inclusion3 decks28 decks
9%synergy
Enchantments
Seal of Removal
43%inclusion12 decks28 decks
42%synergy
Restricted Office // Lecture Hall
39%inclusion11 decks28 decks
37%synergy
Central Elevator // Promising Stairs
36%inclusion10 decks28 decks
35%synergy
Dress Down
36%inclusion10 decks28 decks
33%synergy
Propaganda
36%inclusion10 decks28 decks
9%synergy
Grasp of Fate
32%inclusion9 decks28 decks
26%synergy
Underwater Tunnel // Slimy Aquarium
32%inclusion9 decks28 decks
32%synergy
All That Glitters
32%inclusion9 decks28 decks
23%synergy
Monologue Tax
32%inclusion9 decks28 decks
26%synergy
Derelict Attic // Widow's Walk
30%inclusion8 decks27 decks
29%synergy
Extravagant Replication
29%inclusion8 decks28 decks
24%synergy
Seal of Doom
29%inclusion8 decks28 decks
28%synergy
Amphibian Downpour
29%inclusion8 decks28 decks
24%synergy
Stillness in Motion
27%inclusion6 decks22 decks
27%synergy
Cacophony Unleashed
25%inclusion7 decks28 decks
23%synergy
Ripples of Undeath
25%inclusion7 decks28 decks
22%synergy
Surgical Suite // Hospital Room
25%inclusion7 decks28 decks
25%synergy
Shark Typhoon
25%inclusion7 decks28 decks
19%synergy
Bottomless Pool // Locker Room
25%inclusion7 decks28 decks
23%synergy
Ethereal Armor
25%inclusion7 decks28 decks
20%synergy
Meat Locker // Drowned Diner
22%inclusion6 decks27 decks
22%synergy
Cramped Vents // Access Maze
21%inclusion6 decks28 decks
19%synergy
Imprisoned in the Moon
21%inclusion6 decks28 decks
15%synergy
Unable to Scream
21%inclusion6 decks28 decks
20%synergy
The Eldest Reborn
21%inclusion6 decks28 decks
19%synergy
Mirrormade
21%inclusion6 decks28 decks
12%synergy
Estrid's Invocation
21%inclusion6 decks28 decks
17%synergy
Secrets of the Dead
21%inclusion6 decks28 decks
21%synergy
Polluted Cistern // Dim Oubliette
21%inclusion6 decks28 decks
21%synergy
Nowhere to Run
21%inclusion6 decks28 decks
20%synergy
Mirror Room // Fractured Realm
21%inclusion6 decks28 decks
19%synergy
Darksteel Mutation
18%inclusion5 decks28 decks
12%synergy
Founding the Third Path
18%inclusion5 decks28 decks
18%synergy
Trapped in the Screen
18%inclusion5 decks28 decks
17%synergy
Mystic Remora
18%inclusion5 decks28 decks
-3%synergy
Timely Ward
18%inclusion5 decks28 decks
13%synergy
Witness Protection
18%inclusion5 decks28 decks
16%synergy
Dazzling Theater // Prop Room
18%inclusion5 decks28 decks
16%synergy
Cast Out
18%inclusion5 decks28 decks
15%synergy
Court of Cunning
14%inclusion4 decks28 decks
13%synergy
Chronic Flooding
14%inclusion4 decks28 decks
14%synergy
Authority of the Consuls
14%inclusion4 decks28 decks
3%synergy
Hopeless Nightmare
14%inclusion4 decks28 decks
14%synergy
Necromancy
14%inclusion4 decks28 decks
10%synergy
The Restoration of Eiganjo
14%inclusion4 decks28 decks
14%synergy
Funeral Room // Awakening Hall
14%inclusion4 decks28 decks
13%synergy
Static Prison
14%inclusion4 decks28 decks
14%synergy
Animate Dead
14%inclusion4 decks28 decks
5%synergy
Ghostly Prison
14%inclusion4 decks28 decks
-8%synergy
Ballad of the Black Flag
14%inclusion4 decks28 decks
14%synergy
Battles
Invasion of Theros
14%inclusion4 decks28 decks
12%synergy
Utility Lands
Bojuka Bog
50%inclusion14 decks28 decks
23%synergy
Hall of Heliod's Generosity
32%inclusion9 decks28 decks
19%synergy
Nephalia Drownyard
18%inclusion5 decks28 decks
17%synergy
Halimar Depths
14%inclusion4 decks28 decks
10%synergy
Drownyard Temple
14%inclusion4 decks28 decks
14%synergy
Cephalid Coliseum
11%inclusion3 decks28 decks
7%synergy
Restless Anchorage
7.1%inclusion2 decks28 decks
6%synergy
Mana Artifacts
Arcane Signet
86%inclusion24 decks28 decks
-2%synergy
Sol Ring
86%inclusion24 decks28 decks
-4%synergy
Orzhov Signet
64%inclusion18 decks28 decks
31%synergy
Azorius Signet
61%inclusion17 decks28 decks
29%synergy
Talisman of Progress
43%inclusion12 decks28 decks
0%synergy
Dimir Signet
36%inclusion10 decks28 decks
4%synergy
Commander's Sphere
29%inclusion8 decks28 decks
10%synergy
Talisman of Dominance
29%inclusion8 decks28 decks
-21%synergy
Talisman of Hierarchy
29%inclusion8 decks28 decks
-15%synergy
Mind Stone
21%inclusion6 decks28 decks
9%synergy
Fellwar Stone
18%inclusion5 decks28 decks
-16%synergy
Charcoal Diamond
7.1%inclusion2 decks28 decks
6%synergy
Sky Diamond
7.1%inclusion2 decks28 decks
6%synergy
Marble Diamond
7.1%inclusion2 decks28 decks
6%synergy
Lands
Swamp
100%inclusion28 decks28 decks
9%synergy
Island
100%inclusion28 decks28 decks
7%synergy
Plains
100%inclusion28 decks28 decks
8%synergy
Command Tower
93%inclusion26 decks28 decks
0%synergy
Arcane Sanctum
89%inclusion25 decks28 decks
35%synergy
Temple of Deceit
71%inclusion20 decks28 decks
54%synergy
Temple of Enlightenment
68%inclusion19 decks28 decks
51%synergy
Exotic Orchard
64%inclusion18 decks28 decks
6%synergy
Temple of Silence
64%inclusion18 decks28 decks
45%synergy
Adarkar Wastes
61%inclusion17 decks28 decks
30%synergy
Caves of Koilos
54%inclusion15 decks28 decks
18%synergy
Evolving Wilds
54%inclusion15 decks28 decks
29%synergy
Terramorphic Expanse
50%inclusion14 decks28 decks
33%synergy
Prairie Stream
46%inclusion13 decks28 decks
6%synergy
Valgavoth's Lair
46%inclusion13 decks28 decks
44%synergy
Azorius Chancery
43%inclusion12 decks28 decks
29%synergy
Contaminated Landscape
43%inclusion12 decks28 decks
29%synergy
Underground River
43%inclusion12 decks28 decks
10%synergy
Sunken Hollow
43%inclusion12 decks28 decks
3%synergy
Glacial Fortress
39%inclusion11 decks28 decks
-1%synergy
Dimir Aqueduct
39%inclusion11 decks28 decks
26%synergy
Isolated Chapel
36%inclusion10 decks28 decks
-4%synergy
Orzhov Basilica
36%inclusion10 decks28 decks
20%synergy
Obscura Storefront
36%inclusion10 decks28 decks
26%synergy
Tainted Field
32%inclusion9 decks28 decks
25%synergy
Ash Barrens
32%inclusion9 decks28 decks
21%synergy
Tainted Isle
29%inclusion8 decks28 decks
22%synergy
Darkwater Catacombs
29%inclusion8 decks28 decks
14%synergy
Path of Ancestry
29%inclusion8 decks28 decks
1%synergy
Shineshadow Snarl
29%inclusion8 decks28 decks
18%synergy
Irrigated Farmland
25%inclusion7 decks28 decks
18%synergy
Drowned Catacomb
25%inclusion7 decks28 decks
-11%synergy
Port Town
21%inclusion6 decks28 decks
4%synergy
Myriad Landscape
18%inclusion5 decks28 decks
9%synergy
Thriving Isle
18%inclusion5 decks28 decks
13%synergy
Skycloud Expanse
18%inclusion5 decks28 decks
3%synergy
Thriving Heath
18%inclusion5 decks28 decks
13%synergy
Thriving Moor
14%inclusion4 decks28 decks
10%synergy
Choked Estuary
14%inclusion4 decks28 decks
-2%synergy
Desolate Mire
11%inclusion3 decks28 decks
5%synergy
Fetid Heath
11%inclusion3 decks28 decks
-1%synergy
Waterlogged Teachings
11%inclusion3 decks28 decks
6%synergy
Forlorn Flats
11%inclusion3 decks28 decks
10%synergy
Floodfarm Verge
11%inclusion3 decks28 decks
0%synergy
Fetid Pools
7.1%inclusion2 decks28 decks
0%synergy
Lonely Arroyo
7.1%inclusion2 decks28 decks
6%synergy
Glasswing Grace
7.1%inclusion2 decks28 decks
4%synergy
Tranquil Cove
7.1%inclusion2 decks28 decks
1%synergy
Demolition Field
7.1%inclusion2 decks28 decks
3%synergy
Maestros Theater
7.1%inclusion2 decks28 decks
7%synergy
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