The Master of Keys (Commander) - Budget Upgraded Control

The Master of Keys
Rank #306
3decks
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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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Inquisitive Glimmer
100%inclusion3 decks3 decks
92%synergy
Entity Tracker
100%inclusion3 decks3 decks
94%synergy
Scrabbling Skullcrab
67%inclusion2 decks3 decks
66%synergy
Starfield Mystic
67%inclusion2 decks3 decks
60%synergy
Gravebreaker Lamia
67%inclusion2 decks3 decks
66%synergy
Demon of Fate's Design
67%inclusion2 decks3 decks
61%synergy
Silent Hallcreeper
67%inclusion2 decks3 decks
62%synergy
Mesa Enchantress
67%inclusion2 decks3 decks
58%synergy
Balemurk Leech
67%inclusion2 decks3 decks
66%synergy
Zur, Eternal Schemer
67%inclusion2 decks3 decks
63%synergy
Zur the Enchanter
67%inclusion2 decks3 decks
61%synergy
Optimistic Scavenger
33%inclusion1 decks3 decks
33%synergy
Fear of Infinity
33%inclusion1 decks3 decks
33%synergy
Fear of Isolation
33%inclusion1 decks3 decks
33%synergy
Silent Sentinel
33%inclusion1 decks3 decks
33%synergy
Uchbenbak, the Great Mistake
33%inclusion1 decks3 decks
33%synergy
Fear of Lost Teeth
33%inclusion1 decks3 decks
33%synergy
Archon of Sun's Grace
33%inclusion1 decks3 decks
29%synergy
Dream Eater
33%inclusion1 decks3 decks
33%synergy
Fear of Surveillance
33%inclusion1 decks3 decks
33%synergy
Kiora, the Rising Tide
33%inclusion1 decks3 decks
32%synergy
Horrid Shadowspinner
33%inclusion1 decks3 decks
33%synergy
Fear of Impostors
33%inclusion1 decks3 decks
32%synergy
Stitcher's Supplier
33%inclusion1 decks3 decks
33%synergy
Moon-Blessed Cleric
33%inclusion1 decks3 decks
29%synergy
Stalked Researcher
33%inclusion1 decks3 decks
33%synergy
Fear of the Dark
33%inclusion1 decks3 decks
33%synergy
Victor, Valgavoth's Seneschal
33%inclusion1 decks3 decks
31%synergy
Skullsnap Nuisance
33%inclusion1 decks3 decks
33%synergy
Cruel Somnophage
33%inclusion1 decks3 decks
33%synergy
Arvinox, the Mind Flail
33%inclusion1 decks3 decks
32%synergy
Spirited Companion
33%inclusion1 decks3 decks
31%synergy
Wall of Denial
33%inclusion1 decks3 decks
33%synergy
Deranged Assistant
33%inclusion1 decks3 decks
33%synergy
Fear of Sleep Paralysis
33%inclusion1 decks3 decks
28%synergy
Creeping Peeper
33%inclusion1 decks3 decks
33%synergy
Nashi, Searcher in the Dark
33%inclusion1 decks3 decks
33%synergy
Blightcaster
33%inclusion1 decks3 decks
33%synergy
Ancient Cellarspawn
33%inclusion1 decks3 decks
30%synergy
Doomwake Giant
33%inclusion1 decks3 decks
27%synergy
Dreadwing Scavenger
33%inclusion1 decks3 decks
33%synergy
Ghostly Dancers
33%inclusion1 decks3 decks
31%synergy
Phenomenon Investigators
33%inclusion1 decks3 decks
33%synergy
Ondu Spiritdancer
33%inclusion1 decks3 decks
27%synergy
Alseid of Life's Bounty
33%inclusion1 decks3 decks
32%synergy
Mindwrack Harpy
33%inclusion1 decks3 decks
33%synergy
Instants
Negate
67%inclusion2 decks3 decks
50%synergy
Void Rend
67%inclusion2 decks3 decks
33%synergy
Swords to Plowshares
67%inclusion2 decks3 decks
-2%synergy
Frantic Search
33%inclusion1 decks3 decks
16%synergy
Refute
33%inclusion1 decks3 decks
31%synergy
Run Away Together
33%inclusion1 decks3 decks
33%synergy
Syncopate
33%inclusion1 decks3 decks
33%synergy
Fact or Fiction
33%inclusion1 decks3 decks
30%synergy
Sublime Epiphany
33%inclusion1 decks3 decks
31%synergy
Thirst for Meaning
33%inclusion1 decks3 decks
32%synergy
Slip Out the Back
33%inclusion1 decks3 decks
32%synergy
Disenchant
33%inclusion1 decks3 decks
32%synergy
Get Out
33%inclusion1 decks3 decks
33%synergy
Terror
33%inclusion1 decks3 decks
33%synergy
Utter End
33%inclusion1 decks3 decks
27%synergy
Azorius Charm
33%inclusion1 decks3 decks
33%synergy
Think Twice
33%inclusion1 decks3 decks
33%synergy
Sorceries
Glimpse the Unthinkable
67%inclusion2 decks3 decks
66%synergy
Buried Alive
67%inclusion2 decks3 decks
63%synergy
Extinguish All Hope
67%inclusion2 decks3 decks
65%synergy
Strategic Planning
33%inclusion1 decks3 decks
33%synergy
Sevinne's Reclamation
33%inclusion1 decks3 decks
24%synergy
Open the Vaults
33%inclusion1 decks3 decks
32%synergy
Victimize
33%inclusion1 decks3 decks
25%synergy
Come Back Wrong
33%inclusion1 decks3 decks
33%synergy
Split Up
33%inclusion1 decks3 decks
32%synergy
Revival // Revenge
33%inclusion1 decks3 decks
33%synergy
Wistful Thinking
33%inclusion1 decks3 decks
33%synergy
Dance of the Manse
33%inclusion1 decks3 decks
30%synergy
Emerge from the Cocoon
33%inclusion1 decks3 decks
33%synergy
Singularity Rupture
33%inclusion1 decks3 decks
31%synergy
Avatar's Wrath
33%inclusion1 decks3 decks
31%synergy
Utility Artifacts
Whip of Erebos
33%inclusion1 decks3 decks
31%synergy
Mask of the Schemer
33%inclusion1 decks3 decks
32%synergy
Keys to the House
33%inclusion1 decks3 decks
33%synergy
Darksteel Plate
33%inclusion1 decks3 decks
32%synergy
Swiftfoot Boots
33%inclusion1 decks3 decks
9%synergy
Codex Shredder
33%inclusion1 decks3 decks
33%synergy
The Fire Nation Drill
33%inclusion1 decks3 decks
33%synergy
Enchantments
Cacophony Unleashed
100%inclusion3 decks3 decks
98%synergy
Cemetery Tampering
100%inclusion3 decks3 decks
99%synergy
Ethereal Armor
100%inclusion3 decks3 decks
95%synergy
Ripples of Undeath
67%inclusion2 decks3 decks
64%synergy
Imprisoned in the Moon
67%inclusion2 decks3 decks
60%synergy
Sigil of the Empty Throne
67%inclusion2 decks3 decks
61%synergy
Amphibian Downpour
67%inclusion2 decks3 decks
62%synergy
Seal of Cleansing
67%inclusion2 decks3 decks
65%synergy
Dress Down
67%inclusion2 decks3 decks
64%synergy
Secret Arcade // Dusty Parlor
67%inclusion2 decks3 decks
62%synergy
Cast Out
67%inclusion2 decks3 decks
64%synergy
Defiled Crypt // Cadaver Lab
67%inclusion2 decks3 decks
66%synergy
One with the Multiverse
33%inclusion1 decks3 decks
29%synergy
Unholy Strength
33%inclusion1 decks3 decks
33%synergy
Daybreak Coronet
33%inclusion1 decks3 decks
32%synergy
Trapped in the Screen
33%inclusion1 decks3 decks
33%synergy
Underwater Tunnel // Slimy Aquarium
33%inclusion1 decks3 decks
33%synergy
Journey to Nowhere
33%inclusion1 decks3 decks
33%synergy
Shardmage's Rescue
33%inclusion1 decks3 decks
33%synergy
The Eldest Reborn
33%inclusion1 decks3 decks
31%synergy
Grievous Wound
33%inclusion1 decks3 decks
33%synergy
Fear of Death
33%inclusion1 decks3 decks
33%synergy
Touch the Spirit Realm
33%inclusion1 decks3 decks
31%synergy
Curse of the Bloody Tome
33%inclusion1 decks3 decks
33%synergy
Authority of the Consuls
33%inclusion1 decks3 decks
22%synergy
Blind Obedience
33%inclusion1 decks3 decks
21%synergy
Omniscience
33%inclusion1 decks3 decks
30%synergy
Mantle of the Ancients
33%inclusion1 decks3 decks
31%synergy
Mirrormade
33%inclusion1 decks3 decks
24%synergy
Feast of the Victorious Dead
33%inclusion1 decks3 decks
33%synergy
Spirit Mantle
33%inclusion1 decks3 decks
32%synergy
Spirit-Sister's Call
33%inclusion1 decks3 decks
32%synergy
Copy Enchantment
33%inclusion1 decks3 decks
29%synergy
Meat Locker // Drowned Diner
33%inclusion1 decks3 decks
33%synergy
Shark Typhoon
33%inclusion1 decks3 decks
28%synergy
Timely Ward
33%inclusion1 decks3 decks
28%synergy
Steel of the Godhead
33%inclusion1 decks3 decks
30%synergy
Sphere of Safety
33%inclusion1 decks3 decks
24%synergy
The Tale of Tamiyo
33%inclusion1 decks3 decks
33%synergy
All That Glitters
33%inclusion1 decks3 decks
25%synergy
Curator's Ward
33%inclusion1 decks3 decks
31%synergy
Monologue Tax
33%inclusion1 decks3 decks
27%synergy
Secrets of the Dead
33%inclusion1 decks3 decks
33%synergy
Bottomless Pool // Locker Room
33%inclusion1 decks3 decks
31%synergy
Oblivion Ring
33%inclusion1 decks3 decks
32%synergy
Animate Dead
33%inclusion1 decks3 decks
24%synergy
Duskmourn's Domination
33%inclusion1 decks3 decks
33%synergy
Banishing Light
33%inclusion1 decks3 decks
32%synergy
Vessel of Paramnesia
33%inclusion1 decks3 decks
33%synergy
Angelic Renewal
33%inclusion1 decks3 decks
33%synergy
Utility Lands
Pit of Offerings
33%inclusion1 decks3 decks
33%synergy
Bojuka Bog
33%inclusion1 decks3 decks
6%synergy
Hall of Heliod's Generosity
33%inclusion1 decks3 decks
20%synergy
Skyline Cascade
33%inclusion1 decks3 decks
33%synergy
Command Beacon
33%inclusion1 decks3 decks
31%synergy
Temple of the False God
33%inclusion1 decks3 decks
26%synergy
Mana Artifacts
Arcane Signet
100%inclusion3 decks3 decks
12%synergy
Sol Ring
100%inclusion3 decks3 decks
10%synergy
Talisman of Progress
33%inclusion1 decks3 decks
-10%synergy
Talisman of Dominance
33%inclusion1 decks3 decks
-16%synergy
Chromatic Lantern
33%inclusion1 decks3 decks
20%synergy
Talisman of Hierarchy
33%inclusion1 decks3 decks
-10%synergy
Mind Stone
33%inclusion1 decks3 decks
21%synergy
Orzhov Signet
33%inclusion1 decks3 decks
0%synergy
Azorius Signet
33%inclusion1 decks3 decks
2%synergy
Bender's Waterskin
33%inclusion1 decks3 decks
29%synergy
Lands
Command Tower
100%inclusion3 decks3 decks
7%synergy
Terramorphic Expanse
100%inclusion3 decks3 decks
83%synergy
Caves of Koilos
100%inclusion3 decks3 decks
65%synergy
Swamp
100%inclusion3 decks3 decks
9%synergy
Island
100%inclusion3 decks3 decks
7%synergy
Plains
100%inclusion3 decks3 decks
8%synergy
Abandoned Campground
67%inclusion2 decks3 decks
66%synergy
Arcane Sanctum
67%inclusion2 decks3 decks
12%synergy
Evolving Wilds
67%inclusion2 decks3 decks
42%synergy
Thriving Heath
67%inclusion2 decks3 decks
62%synergy
Obscura Storefront
67%inclusion2 decks3 decks
57%synergy
Temple of Silence
67%inclusion2 decks3 decks
47%synergy
Escape Tunnel
33%inclusion1 decks3 decks
33%synergy
Tainted Isle
33%inclusion1 decks3 decks
27%synergy
Glacial Fortress
33%inclusion1 decks3 decks
-7%synergy
Idyllic Beachfront
33%inclusion1 decks3 decks
29%synergy
Azorius Chancery
33%inclusion1 decks3 decks
19%synergy
Exotic Orchard
33%inclusion1 decks3 decks
-25%synergy
Contaminated Landscape
33%inclusion1 decks3 decks
19%synergy
Mistvault Bridge
33%inclusion1 decks3 decks
26%synergy
Dimir Aqueduct
33%inclusion1 decks3 decks
20%synergy
Fetid Heath
33%inclusion1 decks3 decks
21%synergy
Tainted Field
33%inclusion1 decks3 decks
26%synergy
Skybridge Towers
33%inclusion1 decks3 decks
32%synergy
Prairie Stream
33%inclusion1 decks3 decks
-7%synergy
Tranquil Cove
33%inclusion1 decks3 decks
27%synergy
Valgavoth's Lair
33%inclusion1 decks3 decks
31%synergy
Thriving Isle
33%inclusion1 decks3 decks
29%synergy
Razortide Bridge
33%inclusion1 decks3 decks
26%synergy
Skycloud Expanse
33%inclusion1 decks3 decks
18%synergy
Isolated Chapel
33%inclusion1 decks3 decks
-6%synergy
Drowned Catacomb
33%inclusion1 decks3 decks
-3%synergy
Underground River
33%inclusion1 decks3 decks
0%synergy
Temple of Enlightenment
33%inclusion1 decks3 decks
17%synergy
Sunlit Marsh
33%inclusion1 decks3 decks
29%synergy
Orzhov Basilica
33%inclusion1 decks3 decks
18%synergy
Azorius Guildgate
33%inclusion1 decks3 decks
31%synergy
Thriving Moor
33%inclusion1 decks3 decks
29%synergy
Sunken Hollow
33%inclusion1 decks3 decks
-6%synergy
Scoured Barrens
33%inclusion1 decks3 decks
27%synergy
Adarkar Wastes
33%inclusion1 decks3 decks
2%synergy
Treno, Dark City
33%inclusion1 decks3 decks
32%synergy
Sinister Hideout
33%inclusion1 decks3 decks
33%synergy
North Pole Gates
33%inclusion1 decks3 decks
33%synergy
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