The Master of Keys (Commander) - Budget Rooms

The Master of Keys
Rank #309
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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Utility Lands
Mana Artifacts
Lands
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Starfield Mystic
100%inclusion3 decks3 decks
93%synergy
Gravebreaker Lamia
100%inclusion3 decks3 decks
99%synergy
Inquisitive Glimmer
100%inclusion3 decks3 decks
92%synergy
Doomwake Giant
100%inclusion3 decks3 decks
94%synergy
Ghostly Dancers
100%inclusion3 decks3 decks
97%synergy
Entity Tracker
100%inclusion3 decks3 decks
94%synergy
Scrabbling Skullcrab
67%inclusion2 decks3 decks
66%synergy
Demon of Fate's Design
67%inclusion2 decks3 decks
61%synergy
Sage of Mysteries
67%inclusion2 decks3 decks
66%synergy
Soaring Lightbringer
67%inclusion2 decks3 decks
62%synergy
Mesa Enchantress
67%inclusion2 decks3 decks
58%synergy
Victor, Valgavoth's Seneschal
67%inclusion2 decks3 decks
65%synergy
Fear of Sleep Paralysis
67%inclusion2 decks3 decks
61%synergy
Grim Guardian
67%inclusion2 decks3 decks
64%synergy
Alseid of Life's Bounty
67%inclusion2 decks3 decks
65%synergy
Y'shtola, Night's Blessed
50%inclusion1 decks2 decks
49%synergy
Emet-Selch of the Third Seat
50%inclusion1 decks2 decks
40%synergy
Starnheim Courser
33%inclusion1 decks3 decks
29%synergy
Fear of Infinity
33%inclusion1 decks3 decks
33%synergy
Protean Thaumaturge
33%inclusion1 decks3 decks
33%synergy
Laboratory Drudge
33%inclusion1 decks3 decks
33%synergy
Overlord of the Floodpits
33%inclusion1 decks3 decks
30%synergy
Lord of the Forsaken
33%inclusion1 decks3 decks
33%synergy
Lurrus of the Dream-Den
33%inclusion1 decks3 decks
32%synergy
Archon of Sun's Grace
33%inclusion1 decks3 decks
29%synergy
Kiora, the Rising Tide
33%inclusion1 decks3 decks
32%synergy
Fear of Impostors
33%inclusion1 decks3 decks
32%synergy
Silent Hallcreeper
33%inclusion1 decks3 decks
29%synergy
Moon-Blessed Cleric
33%inclusion1 decks3 decks
29%synergy
Fear of the Dark
33%inclusion1 decks3 decks
33%synergy
Skullsnap Nuisance
33%inclusion1 decks3 decks
33%synergy
Spirited Companion
33%inclusion1 decks3 decks
31%synergy
Enduring Curiosity
33%inclusion1 decks3 decks
26%synergy
Silverquill Lecturer
33%inclusion1 decks3 decks
33%synergy
Nashi, Searcher in the Dark
33%inclusion1 decks3 decks
33%synergy
Underworld Coinsmith
33%inclusion1 decks3 decks
32%synergy
Keen Duelist
33%inclusion1 decks3 decks
33%synergy
Aminatou, Veil Piercer
33%inclusion1 decks3 decks
32%synergy
Heliod, the Radiant Dawn
33%inclusion1 decks3 decks
30%synergy
Conspiracy Unraveler
33%inclusion1 decks3 decks
33%synergy
River Kelpie
33%inclusion1 decks3 decks
33%synergy
Instants
Frantic Search
67%inclusion2 decks3 decks
50%synergy
Thirst for Meaning
67%inclusion2 decks3 decks
65%synergy
Void Rend
67%inclusion2 decks3 decks
33%synergy
Comeuppance
33%inclusion1 decks3 decks
33%synergy
Negate
33%inclusion1 decks3 decks
17%synergy
Swords to Plowshares
33%inclusion1 decks3 decks
-35%synergy
Faithful Mending
33%inclusion1 decks3 decks
29%synergy
Path to Exile
33%inclusion1 decks3 decks
-9%synergy
Long River's Pull
33%inclusion1 decks3 decks
33%synergy
Sorceries
Time Wipe
67%inclusion2 decks3 decks
60%synergy
Singularity Rupture
50%inclusion1 decks2 decks
48%synergy
Commune with Evil
33%inclusion1 decks3 decks
33%synergy
Resurgent Belief
33%inclusion1 decks3 decks
31%synergy
Replication Technique
33%inclusion1 decks3 decks
33%synergy
Sevinne's Reclamation
33%inclusion1 decks3 decks
24%synergy
Abuelo's Awakening
33%inclusion1 decks3 decks
33%synergy
Cleansing Meditation
33%inclusion1 decks3 decks
33%synergy
Starfall Invocation
33%inclusion1 decks3 decks
31%synergy
Excavation Technique
33%inclusion1 decks3 decks
33%synergy
Extinguish All Hope
33%inclusion1 decks3 decks
32%synergy
Unburial Rites
33%inclusion1 decks3 decks
30%synergy
Redress Fate
33%inclusion1 decks3 decks
27%synergy
Dance of the Manse
33%inclusion1 decks3 decks
30%synergy
Utility Artifacts
The Grim Captain's Locker
33%inclusion1 decks3 decks
33%synergy
Wayfarer's Bauble
33%inclusion1 decks3 decks
25%synergy
Keys to the House
33%inclusion1 decks3 decks
33%synergy
Ghirapur Orrery
33%inclusion1 decks3 decks
33%synergy
Enchantments
Cramped Vents // Access Maze
100%inclusion3 decks3 decks
97%synergy
Central Elevator // Promising Stairs
100%inclusion3 decks3 decks
99%synergy
Seal of Cleansing
100%inclusion3 decks3 decks
98%synergy
Stillness in Motion
100%inclusion2 decks2 decks
100%synergy
Cacophony Unleashed
67%inclusion2 decks3 decks
65%synergy
Imprisoned in the Moon
67%inclusion2 decks3 decks
60%synergy
Glasswing Grace
67%inclusion2 decks3 decks
64%synergy
Sigil of the Empty Throne
67%inclusion2 decks3 decks
61%synergy
The Eldest Reborn
67%inclusion2 decks3 decks
64%synergy
Estrid's Invocation
67%inclusion2 decks3 decks
62%synergy
Derelict Attic // Widow's Walk
67%inclusion2 decks3 decks
66%synergy
Cemetery Tampering
67%inclusion2 decks3 decks
66%synergy
Restricted Office // Lecture Hall
67%inclusion2 decks3 decks
64%synergy
Bottomless Pool // Locker Room
67%inclusion2 decks3 decks
65%synergy
Dress Down
67%inclusion2 decks3 decks
64%synergy
Dazzling Theater // Prop Room
67%inclusion2 decks3 decks
65%synergy
Polluted Cistern // Dim Oubliette
67%inclusion2 decks3 decks
66%synergy
Defiled Crypt // Cadaver Lab
67%inclusion2 decks3 decks
66%synergy
Momentum Breaker
50%inclusion1 decks2 decks
50%synergy
Observed Stasis
50%inclusion1 decks2 decks
44%synergy
Parker Luck
50%inclusion1 decks2 decks
50%synergy
One with the Multiverse
33%inclusion1 decks3 decks
29%synergy
Staggering Insight
33%inclusion1 decks3 decks
31%synergy
Robe of Mirrors
33%inclusion1 decks3 decks
33%synergy
Minimus Containment
33%inclusion1 decks3 decks
33%synergy
Grasp of Fate
33%inclusion1 decks3 decks
27%synergy
Scion of Halaster
33%inclusion1 decks3 decks
33%synergy
Ripples of Undeath
33%inclusion1 decks3 decks
31%synergy
Underwater Tunnel // Slimy Aquarium
33%inclusion1 decks3 decks
33%synergy
The Cruelty of Gix
33%inclusion1 decks3 decks
33%synergy
Demonic Covenant
33%inclusion1 decks3 decks
33%synergy
Extravagant Replication
33%inclusion1 decks3 decks
28%synergy
Chronic Flooding
33%inclusion1 decks3 decks
33%synergy
Grievous Wound
33%inclusion1 decks3 decks
32%synergy
Grasping Shadows
33%inclusion1 decks3 decks
33%synergy
Soul Snare
33%inclusion1 decks3 decks
33%synergy
Touch the Spirit Realm
33%inclusion1 decks3 decks
31%synergy
Surgical Suite // Hospital Room
33%inclusion1 decks3 decks
33%synergy
Boon of the Spirit Realm
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
27%synergy
Timely Ward
33%inclusion1 decks3 decks
28%synergy
Sphere of Safety
33%inclusion1 decks3 decks
24%synergy
The Tale of Tamiyo
33%inclusion1 decks3 decks
33%synergy
Amphibian Downpour
33%inclusion1 decks3 decks
29%synergy
Witness Protection
33%inclusion1 decks3 decks
31%synergy
Debtors' Knell
33%inclusion1 decks3 decks
32%synergy
Fraying Sanity
33%inclusion1 decks3 decks
33%synergy
Secrets of the Dead
33%inclusion1 decks3 decks
33%synergy
Battles
Invasion of Theros
33%inclusion1 decks3 decks
32%synergy
Utility Lands
Cephalid Coliseum
67%inclusion2 decks3 decks
63%synergy
Pit of Offerings
33%inclusion1 decks3 decks
33%synergy
Bojuka Bog
33%inclusion1 decks3 decks
6%synergy
Nephalia Drownyard
33%inclusion1 decks3 decks
33%synergy
Dakmor Salvage
33%inclusion1 decks3 decks
33%synergy
Mana Artifacts
Arcane Signet
67%inclusion2 decks3 decks
-21%synergy
Sol Ring
67%inclusion2 decks3 decks
-23%synergy
Mind Stone
33%inclusion1 decks3 decks
20%synergy
Lands
Command Tower
100%inclusion3 decks3 decks
8%synergy
Contaminated Landscape
100%inclusion3 decks3 decks
86%synergy
Darkwater Catacombs
100%inclusion3 decks3 decks
86%synergy
Swamp
100%inclusion3 decks3 decks
9%synergy
Skycloud Expanse
100%inclusion3 decks3 decks
85%synergy
Island
100%inclusion3 decks3 decks
7%synergy
Plains
100%inclusion3 decks3 decks
9%synergy
Glacial Fortress
67%inclusion2 decks3 decks
27%synergy
Exotic Orchard
67%inclusion2 decks3 decks
8%synergy
Caves of Koilos
67%inclusion2 decks3 decks
31%synergy
Glasswing Grace
67%inclusion2 decks3 decks
64%synergy
Desolate Mire
67%inclusion2 decks3 decks
61%synergy
Prairie Stream
67%inclusion2 decks3 decks
26%synergy
Valgavoth's Lair
67%inclusion2 decks3 decks
64%synergy
Arcane Sanctum
67%inclusion2 decks3 decks
12%synergy
Sunken Hollow
67%inclusion2 decks3 decks
27%synergy
Adarkar Wastes
67%inclusion2 decks3 decks
36%synergy
Obscura Storefront
67%inclusion2 decks3 decks
56%synergy
Abandoned Campground
33%inclusion1 decks3 decks
33%synergy
Azorius Chancery
33%inclusion1 decks3 decks
19%synergy
Myriad Landscape
33%inclusion1 decks3 decks
25%synergy
Temple of Deceit
33%inclusion1 decks3 decks
15%synergy
Dimir Aqueduct
33%inclusion1 decks3 decks
19%synergy
Conduit Pylons
33%inclusion1 decks3 decks
33%synergy
Fetid Heath
33%inclusion1 decks3 decks
22%synergy
Port Town
33%inclusion1 decks3 decks
16%synergy
Ash Barrens
33%inclusion1 decks3 decks
23%synergy
Shire Terrace
33%inclusion1 decks3 decks
33%synergy
Esper Panorama
33%inclusion1 decks3 decks
30%synergy
Isolated Chapel
33%inclusion1 decks3 decks
-5%synergy
Underground River
33%inclusion1 decks3 decks
1%synergy
Promising Vein
33%inclusion1 decks3 decks
33%synergy
Temple of Enlightenment
33%inclusion1 decks3 decks
16%synergy
River of Tears
33%inclusion1 decks3 decks
31%synergy
Demolition Field
33%inclusion1 decks3 decks
29%synergy
Orzhov Basilica
33%inclusion1 decks3 decks
17%synergy
Murky Sewer
33%inclusion1 decks3 decks
33%synergy
Neglected Manor
33%inclusion1 decks3 decks
33%synergy
Temple of Silence
33%inclusion1 decks3 decks
14%synergy
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