The Master of Keys (Commander) - Budget Core Mill

The Master of Keys
Rank #306
2decks
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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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Lands
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Fear of Infinity
100%inclusion2 decks2 decks
99%synergy
Fear of Isolation
100%inclusion2 decks2 decks
100%synergy
Fear of Lost Teeth
100%inclusion2 decks2 decks
100%synergy
Inquisitive Glimmer
100%inclusion2 decks2 decks
92%synergy
Fear of Surveillance
100%inclusion2 decks2 decks
100%synergy
Fear of Impostors
100%inclusion2 decks2 decks
99%synergy
Creeping Peeper
100%inclusion2 decks2 decks
100%synergy
Ghostly Dancers
100%inclusion2 decks2 decks
97%synergy
Entity Tracker
100%inclusion2 decks2 decks
94%synergy
Fear of Falling
50%inclusion1 decks2 decks
50%synergy
Solemn Simulacrum
50%inclusion1 decks2 decks
35%synergy
Demon of Fate's Design
50%inclusion1 decks2 decks
45%synergy
Appendage Amalgam
50%inclusion1 decks2 decks
50%synergy
Indebted Spirit
50%inclusion1 decks2 decks
50%synergy
Optimistic Scavenger
50%inclusion1 decks2 decks
50%synergy
Scrabbling Skullcrab
50%inclusion1 decks2 decks
49%synergy
Starfield Mystic
50%inclusion1 decks2 decks
43%synergy
The Mindskinner
50%inclusion1 decks2 decks
49%synergy
Floodpits Drowner
50%inclusion1 decks2 decks
50%synergy
Eidolon of Astral Winds
50%inclusion1 decks2 decks
50%synergy
Merfolk Secretkeeper
50%inclusion1 decks2 decks
50%synergy
Soaring Lightbringer
50%inclusion1 decks2 decks
45%synergy
The Ancient One
50%inclusion1 decks2 decks
50%synergy
Silent Hallcreeper
50%inclusion1 decks2 decks
46%synergy
Whitewater Naiads
50%inclusion1 decks2 decks
50%synergy
Ashiok's Reaper
50%inclusion1 decks2 decks
50%synergy
Aphemia, the Cacophony
50%inclusion1 decks2 decks
50%synergy
Moon-Blessed Cleric
50%inclusion1 decks2 decks
45%synergy
Ruin Crab
50%inclusion1 decks2 decks
49%synergy
Fear of Abduction
50%inclusion1 decks2 decks
50%synergy
Fear of the Dark
50%inclusion1 decks2 decks
50%synergy
Victor, Valgavoth's Seneschal
50%inclusion1 decks2 decks
48%synergy
Skullsnap Nuisance
50%inclusion1 decks2 decks
50%synergy
Lochmere Serpent
50%inclusion1 decks2 decks
50%synergy
Cruel Somnophage
50%inclusion1 decks2 decks
50%synergy
Consuming Aberration
50%inclusion1 decks2 decks
48%synergy
Fear of Sleep Paralysis
50%inclusion1 decks2 decks
45%synergy
Clammy Prowler
50%inclusion1 decks2 decks
50%synergy
Cruel Witness
50%inclusion1 decks2 decks
50%synergy
Priest of Fell Rites
50%inclusion1 decks2 decks
47%synergy
Millikin
50%inclusion1 decks2 decks
49%synergy
Fear of Immobility
50%inclusion1 decks2 decks
50%synergy
Thassa's Emissary
50%inclusion1 decks2 decks
50%synergy
Summon: Primal Odin
50%inclusion1 decks2 decks
46%synergy
Siegfried, Famed Swordsman
50%inclusion1 decks2 decks
50%synergy
Instants
You Find the Villains' Lair
50%inclusion1 decks2 decks
49%synergy
Fracture
50%inclusion1 decks2 decks
46%synergy
Drown in the Loch
50%inclusion1 decks2 decks
48%synergy
Fact or Fiction
50%inclusion1 decks2 decks
46%synergy
You See a Guard Approach
50%inclusion1 decks2 decks
50%synergy
Fading Hope
50%inclusion1 decks2 decks
50%synergy
Jump Scare
50%inclusion1 decks2 decks
50%synergy
Seized from Slumber
50%inclusion1 decks2 decks
50%synergy
Unwanted Remake
50%inclusion1 decks2 decks
49%synergy
Get Out
50%inclusion1 decks2 decks
50%synergy
Didn't Say Please
50%inclusion1 decks2 decks
49%synergy
Despark
50%inclusion1 decks2 decks
34%synergy
Drown in Dreams
50%inclusion1 decks2 decks
50%synergy
Professor's Warning
50%inclusion1 decks2 decks
50%synergy
Into the Story
50%inclusion1 decks2 decks
48%synergy
Dreams of Laguna
50%inclusion1 decks2 decks
50%synergy
Sorceries
Inspiration from Beyond
50%inclusion1 decks2 decks
50%synergy
Final Vengeance
50%inclusion1 decks2 decks
50%synergy
Fascination
50%inclusion1 decks2 decks
50%synergy
Cut Your Losses
50%inclusion1 decks2 decks
50%synergy
Deep Analysis
50%inclusion1 decks2 decks
49%synergy
Contingency Plan
50%inclusion1 decks2 decks
50%synergy
Damn
50%inclusion1 decks2 decks
30%synergy
Unending Whisper
50%inclusion1 decks2 decks
50%synergy
Winged Words
50%inclusion1 decks2 decks
49%synergy
Winternight Stories
50%inclusion1 decks2 decks
49%synergy
Mystic Meditation
50%inclusion1 decks2 decks
50%synergy
Redress Fate
50%inclusion1 decks2 decks
44%synergy
Singularity Rupture
50%inclusion1 decks2 decks
48%synergy
Space-Time Anomaly
50%inclusion1 decks2 decks
48%synergy
Enchantments
Unable to Scream
100%inclusion2 decks2 decks
99%synergy
Underwater Tunnel // Slimy Aquarium
100%inclusion2 decks2 decks
100%synergy
Central Elevator // Promising Stairs
100%inclusion2 decks2 decks
99%synergy
Restricted Office // Lecture Hall
100%inclusion2 decks2 decks
98%synergy
Nowhere to Run
100%inclusion2 decks2 decks
99%synergy
Defiled Crypt // Cadaver Lab
100%inclusion2 decks2 decks
99%synergy
Font of Return
50%inclusion1 decks2 decks
50%synergy
Security Bypass
50%inclusion1 decks2 decks
50%synergy
Fortune Teller's Talent
50%inclusion1 decks2 decks
50%synergy
Cramped Vents // Access Maze
50%inclusion1 decks2 decks
47%synergy
Cacophony Unleashed
50%inclusion1 decks2 decks
48%synergy
Trapped in the Screen
50%inclusion1 decks2 decks
49%synergy
Capture Sphere
50%inclusion1 decks2 decks
50%synergy
Compulsion
50%inclusion1 decks2 decks
50%synergy
Shardmage's Rescue
50%inclusion1 decks2 decks
50%synergy
Marshal's Anthem
50%inclusion1 decks2 decks
50%synergy
Utter Insignificance
50%inclusion1 decks2 decks
49%synergy
Grievous Wound
50%inclusion1 decks2 decks
49%synergy
Fear of Death
50%inclusion1 decks2 decks
50%synergy
Planar Disruption
50%inclusion1 decks2 decks
50%synergy
Meat Locker // Drowned Diner
50%inclusion1 decks2 decks
49%synergy
Derelict Attic // Widow's Walk
50%inclusion1 decks2 decks
50%synergy
Funeral Room // Awakening Hall
50%inclusion1 decks2 decks
49%synergy
All That Glitters
50%inclusion1 decks2 decks
41%synergy
Bottomless Pool // Locker Room
50%inclusion1 decks2 decks
48%synergy
Unholy Annex // Ritual Chamber
50%inclusion1 decks2 decks
49%synergy
Vessel of Ephemera
50%inclusion1 decks2 decks
50%synergy
Secret Arcade // Dusty Parlor
50%inclusion1 decks2 decks
45%synergy
Drowned Secrets
50%inclusion1 decks2 decks
50%synergy
Circle of Confinement
50%inclusion1 decks2 decks
50%synergy
Ghostly Prison
50%inclusion1 decks2 decks
28%synergy
Ballad of the Black Flag
50%inclusion1 decks2 decks
50%synergy
Propaganda
50%inclusion1 decks2 decks
23%synergy
Utility Lands
Bojuka Bog
50%inclusion1 decks2 decks
23%synergy
Nephalia Drownyard
50%inclusion1 decks2 decks
50%synergy
Rogue's Passage
50%inclusion1 decks2 decks
41%synergy
Mana Artifacts
Spectral Searchlight
50%inclusion1 decks2 decks
50%synergy
Unstable Obelisk
50%inclusion1 decks2 decks
50%synergy
Silumgar Monument
50%inclusion1 decks2 decks
50%synergy
Arcane Signet
50%inclusion1 decks2 decks
-38%synergy
Sol Ring
50%inclusion1 decks2 decks
-40%synergy
Orzhov Keyrune
50%inclusion1 decks2 decks
50%synergy
Obelisk of Esper
50%inclusion1 decks2 decks
48%synergy
Manalith
50%inclusion1 decks2 decks
50%synergy
Lands
Contaminated Landscape
100%inclusion2 decks2 decks
86%synergy
Swamp
100%inclusion2 decks2 decks
9%synergy
Island
100%inclusion2 decks2 decks
7%synergy
Plains
100%inclusion2 decks2 decks
8%synergy
Valgavoth's Lair
50%inclusion1 decks2 decks
47%synergy
Tainted Isle
50%inclusion1 decks2 decks
44%synergy
Glacial Fortress
50%inclusion1 decks2 decks
9%synergy
Command Tower
50%inclusion1 decks2 decks
-43%synergy
Waterfront District
50%inclusion1 decks2 decks
49%synergy
Terramorphic Expanse
50%inclusion1 decks2 decks
33%synergy
Exotic Orchard
50%inclusion1 decks2 decks
-9%synergy
Silverquill Campus
50%inclusion1 decks2 decks
50%synergy
Temple of Deceit
50%inclusion1 decks2 decks
32%synergy
Irrigated Farmland
50%inclusion1 decks2 decks
43%synergy
Tainted Field
50%inclusion1 decks2 decks
43%synergy
Skybridge Towers
50%inclusion1 decks2 decks
49%synergy
Tranquil Cove
50%inclusion1 decks2 decks
44%synergy
Arcane Sanctum
50%inclusion1 decks2 decks
-5%synergy
Temple of Enlightenment
50%inclusion1 decks2 decks
33%synergy
Maestros Theater
50%inclusion1 decks2 decks
50%synergy
Evolving Wilds
50%inclusion1 decks2 decks
25%synergy
Path of Ancestry
50%inclusion1 decks2 decks
22%synergy
Temple of Silence
50%inclusion1 decks2 decks
31%synergy
Forlorn Flats
50%inclusion1 decks2 decks
49%synergy
Submerged Boneyard
50%inclusion1 decks2 decks
49%synergy
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