The Master of Keys (Commander) - Voltron

The Master of Keys
Rank #301
32decks
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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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Sorceries
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Enchantments
Battles
Utility Lands
Mana Artifacts
Lands
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Ethereal Armor
78%inclusion25 decks32 decks
74%synergy
All That Glitters
75%inclusion24 decks32 decks
67%synergy
Mesa Enchantress
69%inclusion22 decks32 decks
60%synergy
Starfield Mystic
66%inclusion21 decks32 decks
59%synergy
Inquisitive Glimmer
66%inclusion21 decks32 decks
58%synergy
Ripples of Undeath
59%inclusion19 decks32 decks
57%synergy
Mantle of the Ancients
56%inclusion18 decks32 decks
54%synergy
Entity Tracker
56%inclusion18 decks32 decks
50%synergy
Otherworldly Gaze
47%inclusion15 decks32 decks
45%synergy
Sheltered by Ghosts
47%inclusion15 decks32 decks
44%synergy
Top Cards
Mystic Remora
50%inclusion16 decks32 decks
29%synergy
Doomwake Giant
47%inclusion15 decks32 decks
41%synergy
Scrabbling Skullcrab
44%inclusion14 decks32 decks
43%synergy
Steel of the Godhead
44%inclusion14 decks32 decks
40%synergy
Sphere of Safety
44%inclusion14 decks32 decks
34%synergy
Swords to Plowshares
44%inclusion14 decks32 decks
-24%synergy
Animate Dead
44%inclusion14 decks32 decks
34%synergy
Daybreak Coronet
41%inclusion13 decks32 decks
39%synergy
Gravebreaker Lamia
41%inclusion13 decks32 decks
40%synergy
Cemetery Tampering
41%inclusion13 decks32 decks
40%synergy
Game Changers
Smothering Tithe
31%inclusion10 decks32 decks
1%synergy
Rhystic Study
28%inclusion9 decks32 decks
-3%synergy
Ancient Tomb
16%inclusion5 decks32 decks
3%synergy
Enlightened Tutor
16%inclusion5 decks32 decks
-3%synergy
Fierce Guardianship
13%inclusion4 decks32 decks
-8%synergy
Cyclonic Rift
13%inclusion4 decks32 decks
-10%synergy
Gifts Ungiven
9.4%inclusion3 decks32 decks
7%synergy
Demonic Tutor
9.4%inclusion3 decks32 decks
-11%synergy
Necropotence
9.4%inclusion3 decks32 decks
3%synergy
Teferi's Protection
6.3%inclusion2 decks32 decks
-10%synergy
Creatures
Victor, Valgavoth's Seneschal
38%inclusion12 decks32 decks
36%synergy
Demon of Fate's Design
31%inclusion10 decks32 decks
26%synergy
Fear of Impostors
31%inclusion10 decks32 decks
30%synergy
Ondu Spiritdancer
31%inclusion10 decks32 decks
25%synergy
Zur the Enchanter
31%inclusion10 decks32 decks
26%synergy
Fear of Sleep Paralysis
28%inclusion9 decks32 decks
23%synergy
Moon-Blessed Cleric
25%inclusion8 decks32 decks
20%synergy
Zur, Eternal Schemer
22%inclusion7 decks32 decks
19%synergy
Overlord of the Floodpits
19%inclusion6 decks32 decks
15%synergy
Sage of Mysteries
19%inclusion6 decks32 decks
18%synergy
Overlord of the Balemurk
19%inclusion6 decks32 decks
17%synergy
Hedron Crab
19%inclusion6 decks32 decks
18%synergy
Pearl-Ear, Imperial Advisor
19%inclusion6 decks32 decks
17%synergy
Bruna, Light of Alabaster
19%inclusion6 decks32 decks
18%synergy
Esper Sentinel
16%inclusion5 decks32 decks
-12%synergy
Sram, Senior Edificer
16%inclusion5 decks32 decks
10%synergy
Skullsnap Nuisance
16%inclusion5 decks32 decks
15%synergy
Aminatou, Veil Piercer
16%inclusion5 decks32 decks
14%synergy
Grim Guardian
16%inclusion5 decks32 decks
13%synergy
Grand Abolisher
16%inclusion5 decks32 decks
1%synergy
Witch Enchanter
13%inclusion4 decks32 decks
5%synergy
Heliod's Pilgrim
13%inclusion4 decks32 decks
12%synergy
Eidolon of Countless Battles
13%inclusion4 decks32 decks
11%synergy
Deranged Assistant
13%inclusion4 decks32 decks
12%synergy
Creeping Peeper
13%inclusion4 decks32 decks
12%synergy
Nashi, Searcher in the Dark
13%inclusion4 decks32 decks
12%synergy
Heliod, the Radiant Dawn
13%inclusion4 decks32 decks
9%synergy
Ghostly Dancers
13%inclusion4 decks32 decks
10%synergy
Abdel Adrian, Gorion's Ward
13%inclusion4 decks32 decks
11%synergy
Alseid of Life's Bounty
13%inclusion4 decks32 decks
11%synergy
Likeness Looter
13%inclusion4 decks32 decks
6%synergy
Killian, Ink Duelist
13%inclusion4 decks32 decks
11%synergy
Mindwrack Harpy
13%inclusion4 decks32 decks
12%synergy
Optimistic Scavenger
9.4%inclusion3 decks32 decks
9%synergy
Displacer Kitten
9.4%inclusion3 decks32 decks
3%synergy
Kor Spiritdancer
9.4%inclusion3 decks32 decks
8%synergy
Eidolon of Rhetoric
9.4%inclusion3 decks32 decks
8%synergy
Agent of Erebos
9.4%inclusion3 decks32 decks
9%synergy
Arna Kennerüd, Skycaptain
9.4%inclusion3 decks32 decks
7%synergy
Silent Hallcreeper
9.4%inclusion3 decks32 decks
5%synergy
Boggart Trawler
9.4%inclusion3 decks32 decks
6%synergy
Athreos, Shroud-Veiled
9.4%inclusion3 decks32 decks
5%synergy
Enduring Curiosity
9.4%inclusion3 decks32 decks
1%synergy
Sun Titan
9.4%inclusion3 decks32 decks
1%synergy
Auramancer
9.4%inclusion3 decks32 decks
7%synergy
Aegis of the Gods
9.4%inclusion3 decks32 decks
8%synergy
Millikin
9.4%inclusion3 decks32 decks
9%synergy
Twilight Diviner
9.1%inclusion1 decks11 decks
8%synergy
Dreadwing Scavenger
7.7%inclusion2 decks26 decks
7%synergy
Emet-Selch of the Third Seat
7.1%inclusion1 decks14 decks
-2%synergy
Instants
Frantic Search
34%inclusion11 decks32 decks
16%synergy
Path to Exile
31%inclusion10 decks32 decks
-11%synergy
Thirst for Meaning
28%inclusion9 decks32 decks
27%synergy
Counterspell
28%inclusion9 decks32 decks
-14%synergy
Entomb
22%inclusion7 decks32 decks
15%synergy
Fell the Profane
19%inclusion6 decks32 decks
10%synergy
Swan Song
19%inclusion6 decks32 decks
-1%synergy
Dovin's Veto
16%inclusion5 decks32 decks
-10%synergy
Dark Ritual
16%inclusion5 decks32 decks
-4%synergy
Utter End
16%inclusion5 decks32 decks
9%synergy
An Offer You Can't Refuse
13%inclusion4 decks32 decks
-15%synergy
Negate
13%inclusion4 decks32 decks
-4%synergy
Arcane Denial
13%inclusion4 decks32 decks
-8%synergy
Sink into Stupor
13%inclusion4 decks32 decks
0%synergy
Generous Gift
13%inclusion4 decks32 decks
-1%synergy
Hagra Mauling
9.4%inclusion3 decks32 decks
8%synergy
Razorgrass Ambush
9.4%inclusion3 decks32 decks
8%synergy
Void Rend
9.4%inclusion3 decks32 decks
-25%synergy
Faithful Mending
9.4%inclusion3 decks32 decks
6%synergy
Don't Make a Sound
6.5%inclusion2 decks31 decks
6%synergy
Muddle the Mixture
6.3%inclusion2 decks32 decks
3%synergy
Brainstorm
6.3%inclusion2 decks32 decks
-11%synergy
Dawn's Truce
6.3%inclusion2 decks32 decks
2%synergy
Fact or Fiction
6.3%inclusion2 decks32 decks
3%synergy
Consider
6.3%inclusion2 decks32 decks
4%synergy
Cabal Ritual
6.3%inclusion2 decks32 decks
3%synergy
Slip Out the Back
6.3%inclusion2 decks32 decks
5%synergy
Alchemist's Retrieval
6.3%inclusion2 decks32 decks
6%synergy
Disallow
6.3%inclusion2 decks32 decks
2%synergy
Tale's End
6.3%inclusion2 decks32 decks
6%synergy
Jwari Disruption
6.3%inclusion2 decks32 decks
6%synergy
Force of Will
6.3%inclusion2 decks32 decks
-6%synergy
Force of Negation
6.3%inclusion2 decks32 decks
-5%synergy
Borne Upon a Wind
6.3%inclusion2 decks32 decks
1%synergy
Sejiri Shelter
6.3%inclusion2 decks32 decks
5%synergy
Inkshield
6.3%inclusion2 decks32 decks
-4%synergy
Vampiric Tutor
6.3%inclusion2 decks32 decks
-10%synergy
Pact of Negation
6.3%inclusion2 decks32 decks
-1%synergy
Sorceries
Sevinne's Reclamation
31%inclusion10 decks32 decks
22%synergy
Redress Fate
25%inclusion8 decks32 decks
20%synergy
Glimpse the Unthinkable
22%inclusion7 decks32 decks
21%synergy
Extinguish All Hope
19%inclusion6 decks32 decks
17%synergy
Windfall
16%inclusion5 decks32 decks
2%synergy
Singularity Rupture
14%inclusion2 decks14 decks
12%synergy
Space-Time Anomaly
14%inclusion2 decks14 decks
13%synergy
Resurgent Belief
13%inclusion4 decks32 decks
11%synergy
Reanimate
13%inclusion4 decks32 decks
-4%synergy
Retether
13%inclusion4 decks32 decks
11%synergy
Time Wipe
9.4%inclusion3 decks32 decks
3%synergy
Sea Gate Restoration
9.4%inclusion3 decks32 decks
7%synergy
Idyllic Tutor
9.4%inclusion3 decks32 decks
5%synergy
Stargaze
9.4%inclusion3 decks32 decks
9%synergy
Traumatize
9.4%inclusion3 decks32 decks
9%synergy
Supreme Verdict
6.3%inclusion2 decks32 decks
-8%synergy
Lively Dirge
6.3%inclusion2 decks32 decks
5%synergy
Open the Armory
6.3%inclusion2 decks32 decks
2%synergy
Replenish
6.3%inclusion2 decks32 decks
5%synergy
Buried Alive
6.3%inclusion2 decks32 decks
2%synergy
Winds of Rath
6.3%inclusion2 decks32 decks
4%synergy
Toxic Deluge
6.3%inclusion2 decks32 decks
-13%synergy
Damn
6.3%inclusion2 decks32 decks
-14%synergy
Beseech the Mirror
6.3%inclusion2 decks32 decks
2%synergy
Unburial Rites
6.3%inclusion2 decks32 decks
3%synergy
Emerge from the Cocoon
6.3%inclusion2 decks32 decks
6%synergy
Utility Artifacts
Mesmeric Orb
25%inclusion8 decks32 decks
24%synergy
Swiftfoot Boots
22%inclusion7 decks32 decks
-2%synergy
Perpetual Timepiece
16%inclusion5 decks32 decks
15%synergy
Wayfarer's Bauble
13%inclusion4 decks32 decks
5%synergy
Sensei's Divining Top
6.3%inclusion2 decks32 decks
-3%synergy
Elixir of Immortality
6.3%inclusion2 decks32 decks
5%synergy
The Grim Captain's Locker
6.3%inclusion2 decks32 decks
6%synergy
The One Ring
6.3%inclusion2 decks32 decks
-6%synergy
Palantír of Orthanc
6.3%inclusion2 decks32 decks
5%synergy
Darksteel Plate
6.3%inclusion2 decks32 decks
5%synergy
Enchantments
Ghostly Prison
41%inclusion13 decks32 decks
18%synergy
Combat Research
41%inclusion13 decks32 decks
38%synergy
Timely Ward
38%inclusion12 decks32 decks
33%synergy
Sage's Reverie
38%inclusion12 decks32 decks
36%synergy
Dress Down
38%inclusion12 decks32 decks
35%synergy
Aqueous Form
34%inclusion11 decks32 decks
31%synergy
Necromancy
34%inclusion11 decks32 decks
30%synergy
Auramancer's Guise
31%inclusion10 decks32 decks
31%synergy
Propaganda
31%inclusion10 decks32 decks
3%synergy
Super State
29%inclusion4 decks14 decks
27%synergy
Grasp of Fate
28%inclusion9 decks32 decks
22%synergy
Mirrormade
28%inclusion9 decks32 decks
18%synergy
Amphibian Downpour
28%inclusion9 decks32 decks
24%synergy
Teval's Judgment
28%inclusion5 decks18 decks
27%synergy
Stillness in Motion
28%inclusion5 decks18 decks
27%synergy
Eldrazi Conscription
25%inclusion8 decks32 decks
23%synergy
Sigil of the Empty Throne
25%inclusion8 decks32 decks
19%synergy
Authority of the Consuls
25%inclusion8 decks32 decks
12%synergy
Idolized
25%inclusion8 decks32 decks
24%synergy
Seal of Cleansing
25%inclusion8 decks32 decks
24%synergy
Curator's Ward
25%inclusion8 decks32 decks
22%synergy
Monologue Tax
25%inclusion8 decks32 decks
19%synergy
Darksteel Mutation
22%inclusion7 decks32 decks
16%synergy
Cacophony Unleashed
22%inclusion7 decks32 decks
20%synergy
Court of Cunning
22%inclusion7 decks32 decks
21%synergy
Extravagant Replication
22%inclusion7 decks32 decks
17%synergy
Blind Obedience
22%inclusion7 decks32 decks
10%synergy
Spirit Mantle
22%inclusion7 decks32 decks
21%synergy
Starfield of Nyx
22%inclusion7 decks32 decks
18%synergy
Secret Arcade // Dusty Parlor
22%inclusion7 decks32 decks
17%synergy
Black Market Connections
22%inclusion7 decks32 decks
7%synergy
Imprisoned in the Moon
19%inclusion6 decks32 decks
12%synergy
Shardmage's Rescue
19%inclusion6 decks32 decks
18%synergy
Leyline of Anticipation
19%inclusion6 decks32 decks
14%synergy
Security Bypass
19%inclusion6 decks32 decks
18%synergy
Search for Azcanta
19%inclusion6 decks32 decks
18%synergy
Tempest Technique
17%inclusion3 decks18 decks
16%synergy
One with the Multiverse
16%inclusion5 decks32 decks
11%synergy
Dance of the Dead
16%inclusion5 decks32 decks
13%synergy
Out of the Tombs
16%inclusion5 decks32 decks
15%synergy
Chains of Custody
16%inclusion5 decks32 decks
15%synergy
Copy Enchantment
16%inclusion5 decks32 decks
11%synergy
Shark Typhoon
16%inclusion5 decks32 decks
10%synergy
Phyresis
16%inclusion5 decks32 decks
13%synergy
Vanishing
16%inclusion5 decks32 decks
15%synergy
Nowhere to Run
16%inclusion5 decks32 decks
14%synergy
Seal of Removal
16%inclusion5 decks32 decks
15%synergy
Derelict Attic // Widow's Walk
13%inclusion4 decks31 decks
12%synergy
Curiosity
13%inclusion4 decks32 decks
3%synergy
Hyena Umbra
13%inclusion4 decks32 decks
11%synergy
Battles
Invasion of Theros
6.3%inclusion2 decks32 decks
5%synergy
Utility Lands
Hall of Heliod's Generosity
34%inclusion11 decks32 decks
21%synergy
Bojuka Bog
28%inclusion9 decks32 decks
1%synergy
Otawara, Soaring City
19%inclusion6 decks32 decks
0%synergy
Command Beacon
13%inclusion4 decks32 decks
10%synergy
Cephalid Coliseum
13%inclusion4 decks32 decks
9%synergy
Urza's Saga
9.4%inclusion3 decks32 decks
-2%synergy
Emergence Zone
9.4%inclusion3 decks32 decks
7%synergy
Takenuma, Abandoned Mire
9.4%inclusion3 decks32 decks
3%synergy
Reliquary Tower
9.4%inclusion3 decks32 decks
-25%synergy
Temple of the False God
9.4%inclusion3 decks32 decks
1%synergy
Ishgard, the Holy See
7.1%inclusion1 decks14 decks
4%synergy
Adagia, Windswept Bastion
7.1%inclusion1 decks14 decks
5%synergy
Serra's Sanctum
6.3%inclusion2 decks32 decks
5%synergy
Hidden Cataract
6.3%inclusion2 decks32 decks
6%synergy
Tocasia's Dig Site
6.3%inclusion2 decks32 decks
6%synergy
Rogue's Passage
6.3%inclusion2 decks32 decks
-4%synergy
Mana Artifacts
Arcane Signet
91%inclusion29 decks32 decks
3%synergy
Sol Ring
75%inclusion24 decks32 decks
-15%synergy
Talisman of Dominance
56%inclusion18 decks32 decks
6%synergy
Talisman of Progress
44%inclusion14 decks32 decks
0%synergy
Talisman of Hierarchy
44%inclusion14 decks32 decks
-1%synergy
Azorius Signet
41%inclusion13 decks32 decks
11%synergy
Fellwar Stone
38%inclusion12 decks32 decks
4%synergy
Mind Stone
34%inclusion11 decks32 decks
22%synergy
Orzhov Signet
34%inclusion11 decks32 decks
3%synergy
Dimir Signet
22%inclusion7 decks32 decks
-8%synergy
Chromatic Lantern
9.4%inclusion3 decks32 decks
-3%synergy
Commander's Sphere
6.3%inclusion2 decks32 decks
-11%synergy
Lotus Petal
6.3%inclusion2 decks32 decks
-4%synergy
Mana Vault
6.3%inclusion2 decks32 decks
-2%synergy
Thought Vessel
6.3%inclusion2 decks32 decks
-19%synergy
Mox Opal
6.3%inclusion2 decks32 decks
-2%synergy
Chrome Mox
6.3%inclusion2 decks32 decks
-3%synergy
Lands
Command Tower
100%inclusion32 decks32 decks
7%synergy
Swamp
91%inclusion29 decks32 decks
-1%synergy
Island
91%inclusion29 decks32 decks
-2%synergy
Plains
91%inclusion29 decks32 decks
-1%synergy
Underground River
63%inclusion20 decks32 decks
28%synergy
Caves of Koilos
56%inclusion18 decks32 decks
21%synergy
Godless Shrine
56%inclusion18 decks32 decks
5%synergy
Arcane Sanctum
56%inclusion18 decks32 decks
2%synergy
Hallowed Fountain
56%inclusion18 decks32 decks
5%synergy
Adarkar Wastes
53%inclusion17 decks32 decks
21%synergy
Isolated Chapel
50%inclusion16 decks32 decks
8%synergy
Drowned Catacomb
50%inclusion16 decks32 decks
12%synergy
Flooded Strand
50%inclusion16 decks32 decks
12%synergy
Watery Grave
50%inclusion16 decks32 decks
-1%synergy
Glacial Fortress
44%inclusion14 decks32 decks
1%synergy
Undercity Sewers
44%inclusion14 decks32 decks
29%synergy
Raffine's Tower
44%inclusion14 decks32 decks
3%synergy
Meticulous Archive
44%inclusion14 decks32 decks
30%synergy
Exotic Orchard
41%inclusion13 decks32 decks
-18%synergy
Marsh Flats
41%inclusion13 decks32 decks
5%synergy
Vault of Champions
41%inclusion13 decks32 decks
8%synergy
Polluted Delta
41%inclusion13 decks32 decks
3%synergy
Terramorphic Expanse
34%inclusion11 decks32 decks
19%synergy
Shadowy Backstreet
34%inclusion11 decks32 decks
22%synergy
Sea of Clouds
34%inclusion11 decks32 decks
0%synergy
Prairie Stream
31%inclusion10 decks32 decks
-9%synergy
Evolving Wilds
31%inclusion10 decks32 decks
7%synergy
Morphic Pool
31%inclusion10 decks32 decks
-2%synergy
Sunken Hollow
31%inclusion10 decks32 decks
-8%synergy
Obscura Storefront
31%inclusion10 decks32 decks
22%synergy
Contaminated Landscape
25%inclusion8 decks32 decks
11%synergy
Shipwreck Marsh
25%inclusion8 decks32 decks
4%synergy
Valgavoth's Lair
22%inclusion7 decks32 decks
19%synergy
Fell the Profane
19%inclusion6 decks32 decks
10%synergy
Fetid Heath
19%inclusion6 decks32 decks
5%synergy
Shattered Sanctum
19%inclusion6 decks32 decks
2%synergy
Deserted Beach
19%inclusion6 decks32 decks
-2%synergy
Tainted Isle
16%inclusion5 decks32 decks
9%synergy
Azorius Chancery
16%inclusion5 decks32 decks
2%synergy
Tainted Field
16%inclusion5 decks32 decks
9%synergy
Port Town
16%inclusion5 decks32 decks
-1%synergy
Ash Barrens
16%inclusion5 decks32 decks
5%synergy
Path of Ancestry
16%inclusion5 decks32 decks
-12%synergy
City of Brass
16%inclusion5 decks32 decks
0%synergy
Witch Enchanter
13%inclusion4 decks32 decks
5%synergy
Fabled Passage
13%inclusion4 decks32 decks
5%synergy
Glasswing Grace
13%inclusion4 decks32 decks
10%synergy
Darkwater Catacombs
13%inclusion4 decks32 decks
-2%synergy
Reflecting Pool
13%inclusion4 decks32 decks
4%synergy
Sink into Stupor
13%inclusion4 decks32 decks
0%synergy
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