The Master of Keys (Commander) - Budget Upgraded Control

The Master of Keys
Rank #305
4decks
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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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Commander Spellbook
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Enchantments
Utility Lands
Mana Artifacts
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Ethereal Armor
100%inclusion4 decks4 decks
95%synergy
Entity Tracker
100%inclusion4 decks4 decks
94%synergy
Game Changers
Gifts Ungiven
25%inclusion1 decks4 decks
23%synergy
Creatures
Scrabbling Skullcrab
75%inclusion3 decks4 decks
74%synergy
Starfield Mystic
75%inclusion3 decks4 decks
68%synergy
Inquisitive Glimmer
75%inclusion3 decks4 decks
68%synergy
Demon of Fate's Design
75%inclusion3 decks4 decks
70%synergy
Mesa Enchantress
75%inclusion3 decks4 decks
66%synergy
Zur, Eternal Schemer
75%inclusion3 decks4 decks
72%synergy
Gravebreaker Lamia
50%inclusion2 decks4 decks
49%synergy
Archon of Sun's Grace
50%inclusion2 decks4 decks
45%synergy
Fear of Impostors
50%inclusion2 decks4 decks
49%synergy
Silent Hallcreeper
50%inclusion2 decks4 decks
46%synergy
Deranged Assistant
50%inclusion2 decks4 decks
50%synergy
Fear of Sleep Paralysis
50%inclusion2 decks4 decks
45%synergy
Balemurk Leech
50%inclusion2 decks4 decks
49%synergy
Ancient Cellarspawn
50%inclusion2 decks4 decks
47%synergy
Doomwake Giant
50%inclusion2 decks4 decks
44%synergy
Ghostly Dancers
50%inclusion2 decks4 decks
47%synergy
Ondu Spiritdancer
50%inclusion2 decks4 decks
44%synergy
Zur the Enchanter
50%inclusion2 decks4 decks
45%synergy
Optimistic Scavenger
25%inclusion1 decks4 decks
25%synergy
Fear of Infinity
25%inclusion1 decks4 decks
24%synergy
Fear of Isolation
25%inclusion1 decks4 decks
25%synergy
Silent Sentinel
25%inclusion1 decks4 decks
25%synergy
Uchbenbak, the Great Mistake
25%inclusion1 decks4 decks
25%synergy
Fear of Lost Teeth
25%inclusion1 decks4 decks
25%synergy
Dream Eater
25%inclusion1 decks4 decks
24%synergy
Fear of Surveillance
25%inclusion1 decks4 decks
25%synergy
Kiora, the Rising Tide
25%inclusion1 decks4 decks
24%synergy
Horrid Shadowspinner
25%inclusion1 decks4 decks
25%synergy
Soaring Lightbringer
25%inclusion1 decks4 decks
20%synergy
Archetype of Courage
25%inclusion1 decks4 decks
24%synergy
Stitcher's Supplier
25%inclusion1 decks4 decks
24%synergy
Moon-Blessed Cleric
25%inclusion1 decks4 decks
20%synergy
Stalked Researcher
25%inclusion1 decks4 decks
25%synergy
Fear of the Dark
25%inclusion1 decks4 decks
25%synergy
Victor, Valgavoth's Seneschal
25%inclusion1 decks4 decks
23%synergy
Enduring Tenacity
25%inclusion1 decks4 decks
17%synergy
Skullsnap Nuisance
25%inclusion1 decks4 decks
25%synergy
Cruel Somnophage
25%inclusion1 decks4 decks
25%synergy
Athreos, Shroud-Veiled
25%inclusion1 decks4 decks
21%synergy
Spirited Companion
25%inclusion1 decks4 decks
23%synergy
Wall of Denial
25%inclusion1 decks4 decks
25%synergy
Archetype of Imagination
25%inclusion1 decks4 decks
20%synergy
Creeping Peeper
25%inclusion1 decks4 decks
25%synergy
Nashi, Searcher in the Dark
25%inclusion1 decks4 decks
24%synergy
Blightcaster
25%inclusion1 decks4 decks
25%synergy
Nightmare Shepherd
25%inclusion1 decks4 decks
23%synergy
Dreadwing Scavenger
25%inclusion1 decks4 decks
24%synergy
Aminatou, Veil Piercer
25%inclusion1 decks4 decks
24%synergy
Grim Guardian
25%inclusion1 decks4 decks
22%synergy
Phenomenon Investigators
25%inclusion1 decks4 decks
24%synergy
Instants
Swords to Plowshares
75%inclusion3 decks4 decks
7%synergy
Negate
50%inclusion2 decks4 decks
34%synergy
Fact or Fiction
50%inclusion2 decks4 decks
46%synergy
Thirst for Meaning
50%inclusion2 decks4 decks
49%synergy
Void Rend
50%inclusion2 decks4 decks
16%synergy
Frantic Search
25%inclusion1 decks4 decks
7%synergy
Refute
25%inclusion1 decks4 decks
22%synergy
Run Away Together
25%inclusion1 decks4 decks
25%synergy
Sublime Epiphany
25%inclusion1 decks4 decks
22%synergy
Slip Out the Back
25%inclusion1 decks4 decks
24%synergy
Disenchant
25%inclusion1 decks4 decks
23%synergy
Arcane Denial
25%inclusion1 decks4 decks
5%synergy
Get Out
25%inclusion1 decks4 decks
25%synergy
Terror
25%inclusion1 decks4 decks
25%synergy
Shelter
25%inclusion1 decks4 decks
25%synergy
Utter End
25%inclusion1 decks4 decks
18%synergy
Counterspell
25%inclusion1 decks4 decks
-17%synergy
Path to Exile
25%inclusion1 decks4 decks
-17%synergy
Inkshield
25%inclusion1 decks4 decks
16%synergy
Azorius Charm
25%inclusion1 decks4 decks
25%synergy
Think Twice
25%inclusion1 decks4 decks
25%synergy
Sorceries
Extinguish All Hope
75%inclusion3 decks4 decks
73%synergy
Glimpse the Unthinkable
50%inclusion2 decks4 decks
50%synergy
Buried Alive
50%inclusion2 decks4 decks
46%synergy
Strategic Planning
25%inclusion1 decks4 decks
25%synergy
Resurgent Belief
25%inclusion1 decks4 decks
23%synergy
Sevinne's Reclamation
25%inclusion1 decks4 decks
16%synergy
Open the Vaults
25%inclusion1 decks4 decks
24%synergy
Victimize
25%inclusion1 decks4 decks
16%synergy
Come Back Wrong
25%inclusion1 decks4 decks
25%synergy
Split Up
25%inclusion1 decks4 decks
24%synergy
Terminus
25%inclusion1 decks4 decks
21%synergy
Cut Your Losses
25%inclusion1 decks4 decks
25%synergy
Revival // Revenge
25%inclusion1 decks4 decks
24%synergy
Redress Fate
25%inclusion1 decks4 decks
19%synergy
Dance of the Manse
25%inclusion1 decks4 decks
22%synergy
Emerge from the Cocoon
25%inclusion1 decks4 decks
25%synergy
Singularity Rupture
25%inclusion1 decks4 decks
23%synergy
Avatar's Wrath
25%inclusion1 decks4 decks
23%synergy
Utility Artifacts
Whip of Erebos
25%inclusion1 decks4 decks
23%synergy
Mask of the Schemer
25%inclusion1 decks4 decks
24%synergy
Keys to the House
25%inclusion1 decks4 decks
25%synergy
Darksteel Plate
25%inclusion1 decks4 decks
24%synergy
Swiftfoot Boots
25%inclusion1 decks4 decks
1%synergy
Codex Shredder
25%inclusion1 decks4 decks
25%synergy
The Fire Nation Drill
25%inclusion1 decks4 decks
25%synergy
Enchantments
Cacophony Unleashed
75%inclusion3 decks4 decks
73%synergy
Ripples of Undeath
75%inclusion3 decks4 decks
72%synergy
Sigil of the Empty Throne
75%inclusion3 decks4 decks
69%synergy
Cemetery Tampering
75%inclusion3 decks4 decks
74%synergy
Secret Arcade // Dusty Parlor
75%inclusion3 decks4 decks
70%synergy
Cast Out
75%inclusion3 decks4 decks
72%synergy
One with the Multiverse
50%inclusion2 decks4 decks
45%synergy
Imprisoned in the Moon
50%inclusion2 decks4 decks
43%synergy
Mirrormade
50%inclusion2 decks4 decks
40%synergy
Copy Enchantment
50%inclusion2 decks4 decks
45%synergy
Timely Ward
50%inclusion2 decks4 decks
45%synergy
Sphere of Safety
50%inclusion2 decks4 decks
41%synergy
The Tale of Tamiyo
50%inclusion2 decks4 decks
50%synergy
Amphibian Downpour
50%inclusion2 decks4 decks
45%synergy
Seal of Cleansing
50%inclusion2 decks4 decks
49%synergy
Curator's Ward
50%inclusion2 decks4 decks
47%synergy
Monologue Tax
50%inclusion2 decks4 decks
44%synergy
Dress Down
50%inclusion2 decks4 decks
48%synergy
Defiled Crypt // Cadaver Lab
50%inclusion2 decks4 decks
49%synergy
Unholy Strength
25%inclusion1 decks4 decks
25%synergy
Daybreak Coronet
25%inclusion1 decks4 decks
24%synergy
Grasp of Fate
25%inclusion1 decks4 decks
19%synergy
Cramped Vents // Access Maze
25%inclusion1 decks4 decks
23%synergy
Protective Bubble
25%inclusion1 decks4 decks
25%synergy
Trapped in the Screen
25%inclusion1 decks4 decks
24%synergy
Underwater Tunnel // Slimy Aquarium
25%inclusion1 decks4 decks
25%synergy
Journey to Nowhere
25%inclusion1 decks4 decks
25%synergy
Extravagant Replication
25%inclusion1 decks4 decks
20%synergy
Shardmage's Rescue
25%inclusion1 decks4 decks
25%synergy
The Eldest Reborn
25%inclusion1 decks4 decks
23%synergy
Grievous Wound
25%inclusion1 decks4 decks
24%synergy
Fear of Death
25%inclusion1 decks4 decks
25%synergy
Touch the Spirit Realm
25%inclusion1 decks4 decks
23%synergy
Curse of the Bloody Tome
25%inclusion1 decks4 decks
25%synergy
Authority of the Consuls
25%inclusion1 decks4 decks
13%synergy
Blind Obedience
25%inclusion1 decks4 decks
13%synergy
Omniscience
25%inclusion1 decks4 decks
21%synergy
Mantle of the Ancients
25%inclusion1 decks4 decks
22%synergy
Feast of the Victorious Dead
25%inclusion1 decks4 decks
25%synergy
Spirit Mantle
25%inclusion1 decks4 decks
24%synergy
Spirit-Sister's Call
25%inclusion1 decks4 decks
24%synergy
Meat Locker // Drowned Diner
25%inclusion1 decks4 decks
24%synergy
Shark Typhoon
25%inclusion1 decks4 decks
19%synergy
Steel of the Godhead
25%inclusion1 decks4 decks
22%synergy
Karmic Justice
25%inclusion1 decks4 decks
23%synergy
All That Glitters
25%inclusion1 decks4 decks
16%synergy
Sigil of Myrkul
25%inclusion1 decks4 decks
25%synergy
Secrets of the Dead
25%inclusion1 decks4 decks
25%synergy
Bottomless Pool // Locker Room
25%inclusion1 decks4 decks
23%synergy
Oblivion Ring
25%inclusion1 decks4 decks
24%synergy
Utility Lands
Bojuka Bog
50%inclusion2 decks4 decks
23%synergy
Hall of Heliod's Generosity
50%inclusion2 decks4 decks
37%synergy
Pit of Offerings
25%inclusion1 decks4 decks
25%synergy
Halimar Depths
25%inclusion1 decks4 decks
20%synergy
Skyline Cascade
25%inclusion1 decks4 decks
25%synergy
Command Beacon
25%inclusion1 decks4 decks
22%synergy
Temple of the False God
25%inclusion1 decks4 decks
17%synergy
Mana Artifacts
Arcane Signet
100%inclusion4 decks4 decks
12%synergy
Sol Ring
100%inclusion4 decks4 decks
10%synergy
Mind Stone
50%inclusion2 decks4 decks
38%synergy
Orzhov Signet
50%inclusion2 decks4 decks
17%synergy
Azorius Signet
50%inclusion2 decks4 decks
19%synergy
Talisman of Progress
25%inclusion1 decks4 decks
-19%synergy
Talisman of Dominance
25%inclusion1 decks4 decks
-25%synergy
Chromatic Lantern
25%inclusion1 decks4 decks
12%synergy
Talisman of Hierarchy
25%inclusion1 decks4 decks
-19%synergy
Bender's Waterskin
25%inclusion1 decks4 decks
20%synergy
Lands
Command Tower
100%inclusion4 decks4 decks
7%synergy
Caves of Koilos
100%inclusion4 decks4 decks
64%synergy
Swamp
100%inclusion4 decks4 decks
8%synergy
Island
100%inclusion4 decks4 decks
7%synergy
Plains
100%inclusion4 decks4 decks
8%synergy
Abandoned Campground
75%inclusion3 decks4 decks
74%synergy
Terramorphic Expanse
75%inclusion3 decks4 decks
59%synergy
Arcane Sanctum
75%inclusion3 decks4 decks
21%synergy
Obscura Storefront
75%inclusion3 decks4 decks
65%synergy
Temple of Silence
75%inclusion3 decks4 decks
56%synergy
Tainted Isle
50%inclusion2 decks4 decks
44%synergy
Tainted Field
50%inclusion2 decks4 decks
43%synergy
Underground River
50%inclusion2 decks4 decks
16%synergy
Temple of Enlightenment
50%inclusion2 decks4 decks
34%synergy
Evolving Wilds
50%inclusion2 decks4 decks
25%synergy
Scoured Barrens
50%inclusion2 decks4 decks
44%synergy
Adarkar Wastes
50%inclusion2 decks4 decks
18%synergy
Escape Tunnel
25%inclusion1 decks4 decks
24%synergy
Glacial Fortress
25%inclusion1 decks4 decks
-17%synergy
Idyllic Beachfront
25%inclusion1 decks4 decks
21%synergy
Azorius Chancery
25%inclusion1 decks4 decks
11%synergy
Exotic Orchard
25%inclusion1 decks4 decks
-34%synergy
Contaminated Landscape
25%inclusion1 decks4 decks
11%synergy
Temple of Deceit
25%inclusion1 decks4 decks
7%synergy
Mistvault Bridge
25%inclusion1 decks4 decks
18%synergy
Dimir Aqueduct
25%inclusion1 decks4 decks
12%synergy
Fetid Heath
25%inclusion1 decks4 decks
12%synergy
Skybridge Towers
25%inclusion1 decks4 decks
24%synergy
Prairie Stream
25%inclusion1 decks4 decks
-16%synergy
Tranquil Cove
25%inclusion1 decks4 decks
19%synergy
Valgavoth's Lair
25%inclusion1 decks4 decks
22%synergy
Thriving Isle
25%inclusion1 decks4 decks
21%synergy
Razortide Bridge
25%inclusion1 decks4 decks
18%synergy
Skycloud Expanse
25%inclusion1 decks4 decks
10%synergy
Isolated Chapel
25%inclusion1 decks4 decks
-15%synergy
Drowned Catacomb
25%inclusion1 decks4 decks
-12%synergy
Sunlit Marsh
25%inclusion1 decks4 decks
21%synergy
Orzhov Basilica
25%inclusion1 decks4 decks
10%synergy
Opal Palace
25%inclusion1 decks4 decks
24%synergy
Azorius Guildgate
25%inclusion1 decks4 decks
23%synergy
Thriving Moor
25%inclusion1 decks4 decks
21%synergy
Sunken Hollow
25%inclusion1 decks4 decks
-15%synergy
Thriving Heath
25%inclusion1 decks4 decks
21%synergy
Hallowed Fountain
25%inclusion1 decks4 decks
-25%synergy
Treno, Dark City
25%inclusion1 decks4 decks
24%synergy
Sinister Hideout
25%inclusion1 decks4 decks
24%synergy
North Pole Gates
25%inclusion1 decks4 decks
25%synergy
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