The Master of Keys (Commander) - Expensive Voltron

The Master of Keys
Rank #295
4decks
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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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Enchantments
Planeswalkers
Utility Lands
Mana Artifacts
Lands
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Mystic Remora
100%inclusion4 decks4 decks
80%synergy
Game Changers
Cyclonic Rift
75%inclusion3 decks4 decks
53%synergy
Rhystic Study
75%inclusion3 decks4 decks
45%synergy
Ancient Tomb
75%inclusion3 decks4 decks
63%synergy
Smothering Tithe
75%inclusion3 decks4 decks
45%synergy
The One Ring
50%inclusion2 decks4 decks
38%synergy
Mana Vault
50%inclusion2 decks4 decks
42%synergy
Force of Will
50%inclusion2 decks4 decks
38%synergy
Necropotence
50%inclusion2 decks4 decks
44%synergy
Demonic Tutor
50%inclusion2 decks4 decks
30%synergy
Serra's Sanctum
50%inclusion2 decks4 decks
48%synergy
Creatures
Emet-Selch of the Third Seat
100%inclusion1 decks1 decks
91%synergy
Displacer Kitten
50%inclusion2 decks4 decks
43%synergy
Lotho, Corrupt Shirriff
50%inclusion2 decks4 decks
33%synergy
Inquisitive Glimmer
50%inclusion2 decks4 decks
43%synergy
Esper Sentinel
50%inclusion2 decks4 decks
23%synergy
Overlord of the Balemurk
50%inclusion2 decks4 decks
48%synergy
Mesa Enchantress
50%inclusion2 decks4 decks
41%synergy
Victor, Valgavoth's Seneschal
50%inclusion2 decks4 decks
48%synergy
Abdel Adrian, Gorion's Ward
50%inclusion2 decks4 decks
48%synergy
Scrabbling Skullcrab
25%inclusion1 decks4 decks
24%synergy
Hoarding Broodlord
25%inclusion1 decks4 decks
23%synergy
Thassa's Oracle
25%inclusion1 decks4 decks
16%synergy
Opposition Agent
25%inclusion1 decks4 decks
17%synergy
Starfield Mystic
25%inclusion1 decks4 decks
19%synergy
Lurrus of the Dream-Den
25%inclusion1 decks4 decks
24%synergy
Walking Ballista
25%inclusion1 decks4 decks
23%synergy
Mother of Runes
25%inclusion1 decks4 decks
22%synergy
Fear of Impostors
25%inclusion1 decks4 decks
24%synergy
Sage of Mysteries
25%inclusion1 decks4 decks
25%synergy
Heliod, Sun-Crowned
25%inclusion1 decks4 decks
21%synergy
Overlord of the Mistmoors
25%inclusion1 decks4 decks
23%synergy
Fear of Sleep Paralysis
25%inclusion1 decks4 decks
20%synergy
Archaeomancer
25%inclusion1 decks4 decks
23%synergy
Drannith Magistrate
25%inclusion1 decks4 decks
18%synergy
Sun Titan
25%inclusion1 decks4 decks
17%synergy
Doomwake Giant
25%inclusion1 decks4 decks
19%synergy
Grim Guardian
25%inclusion1 decks4 decks
23%synergy
Heliod, the Radiant Dawn
25%inclusion1 decks4 decks
22%synergy
Ghostly Dancers
25%inclusion1 decks4 decks
23%synergy
Grand Abolisher
25%inclusion1 decks4 decks
10%synergy
Entity Tracker
25%inclusion1 decks4 decks
19%synergy
Ranger-Captain of Eos
25%inclusion1 decks4 decks
19%synergy
Aura Thief
25%inclusion1 decks4 decks
24%synergy
Zur, Eternal Schemer
25%inclusion1 decks4 decks
22%synergy
Hullbreaker Horror
25%inclusion1 decks4 decks
19%synergy
Zur the Enchanter
25%inclusion1 decks4 decks
20%synergy
Auriok Salvagers
25%inclusion1 decks4 decks
25%synergy
Likeness Looter
25%inclusion1 decks4 decks
18%synergy
Orcish Bowmasters
25%inclusion1 decks4 decks
15%synergy
Instants
Entomb
50%inclusion2 decks4 decks
43%synergy
Dark Ritual
50%inclusion2 decks4 decks
29%synergy
Swan Song
50%inclusion2 decks4 decks
30%synergy
Force of Negation
50%inclusion2 decks4 decks
38%synergy
Enlightened Tutor
50%inclusion2 decks4 decks
32%synergy
Fierce Guardianship
50%inclusion2 decks4 decks
30%synergy
Path to Exile
50%inclusion2 decks4 decks
8%synergy
Vampiric Tutor
50%inclusion2 decks4 decks
34%synergy
Pact of Negation
50%inclusion2 decks4 decks
43%synergy
Fell the Profane
25%inclusion1 decks4 decks
16%synergy
Mental Misstep
25%inclusion1 decks4 decks
19%synergy
Tainted Pact
25%inclusion1 decks4 decks
18%synergy
Dovin's Veto
25%inclusion1 decks4 decks
-2%synergy
Intuition
25%inclusion1 decks4 decks
23%synergy
Mindbreak Trap
25%inclusion1 decks4 decks
19%synergy
Cabal Ritual
25%inclusion1 decks4 decks
22%synergy
Mana Drain
25%inclusion1 decks4 decks
8%synergy
Flusterstorm
25%inclusion1 decks4 decks
17%synergy
Disallow
25%inclusion1 decks4 decks
21%synergy
Silence
25%inclusion1 decks4 decks
15%synergy
Into the Flood Maw
25%inclusion1 decks4 decks
21%synergy
Demonic Consultation
25%inclusion1 decks4 decks
17%synergy
Malakir Rebirth
25%inclusion1 decks4 decks
20%synergy
Swords to Plowshares
25%inclusion1 decks4 decks
-43%synergy
Sink into Stupor
25%inclusion1 decks4 decks
12%synergy
Counterspell
25%inclusion1 decks4 decks
-17%synergy
Borne Upon a Wind
25%inclusion1 decks4 decks
20%synergy
Dramatic Reversal
25%inclusion1 decks4 decks
23%synergy
Saw in Half
25%inclusion1 decks4 decks
23%synergy
Mystical Tutor
25%inclusion1 decks4 decks
15%synergy
Sorceries
Singularity Rupture
100%inclusion1 decks1 decks
98%synergy
Space-Time Anomaly
100%inclusion1 decks1 decks
98%synergy
Sevinne's Reclamation
75%inclusion3 decks4 decks
66%synergy
Reanimate
50%inclusion2 decks4 decks
34%synergy
Cabal Therapy
25%inclusion1 decks4 decks
25%synergy
Supreme Verdict
25%inclusion1 decks4 decks
10%synergy
Windfall
25%inclusion1 decks4 decks
12%synergy
Resurgent Belief
25%inclusion1 decks4 decks
23%synergy
Imperial Seal
25%inclusion1 decks4 decks
18%synergy
Open the Vaults
25%inclusion1 decks4 decks
24%synergy
Yawgmoth's Will
25%inclusion1 decks4 decks
24%synergy
Wrath of God
25%inclusion1 decks4 decks
21%synergy
Time Wipe
25%inclusion1 decks4 decks
19%synergy
Sea Gate Restoration
25%inclusion1 decks4 decks
22%synergy
Replenish
25%inclusion1 decks4 decks
23%synergy
Cut Your Losses
25%inclusion1 decks4 decks
25%synergy
Praetor's Grasp
25%inclusion1 decks4 decks
22%synergy
Morality Shift
25%inclusion1 decks4 decks
25%synergy
Council's Judgment
25%inclusion1 decks4 decks
23%synergy
Toxic Deluge
25%inclusion1 decks4 decks
5%synergy
Fumigate
25%inclusion1 decks4 decks
22%synergy
Dark Deal
25%inclusion1 decks4 decks
24%synergy
Traumatize
25%inclusion1 decks4 decks
25%synergy
Utility Artifacts
Sensei's Divining Top
50%inclusion2 decks4 decks
41%synergy
Mesmeric Orb
25%inclusion1 decks4 decks
24%synergy
Helm of the Gods
25%inclusion1 decks4 decks
24%synergy
Wishclaw Talisman
25%inclusion1 decks4 decks
18%synergy
Darksteel Plate
25%inclusion1 decks4 decks
24%synergy
Agatha's Soul Cauldron
25%inclusion1 decks4 decks
25%synergy
Swiftfoot Boots
25%inclusion1 decks4 decks
1%synergy
Lightning Greaves
25%inclusion1 decks4 decks
2%synergy
Alhammarret's Archive
25%inclusion1 decks4 decks
19%synergy
Isochron Scepter
25%inclusion1 decks4 decks
23%synergy
Venser's Journal
25%inclusion1 decks4 decks
24%synergy
Enchantments
Teval's Judgment
100%inclusion1 decks1 decks
99%synergy
Stillness in Motion
100%inclusion1 decks1 decks
100%synergy
Tempest Technique
100%inclusion1 decks1 decks
100%synergy
Dance of the Dead
75%inclusion3 decks4 decks
73%synergy
Necromancy
75%inclusion3 decks4 decks
71%synergy
Animate Dead
75%inclusion3 decks4 decks
65%synergy
Dress Down
75%inclusion3 decks4 decks
73%synergy
Court of Cunning
50%inclusion2 decks4 decks
49%synergy
Ripples of Undeath
50%inclusion2 decks4 decks
47%synergy
Touch the Spirit Realm
50%inclusion2 decks4 decks
48%synergy
Sphere of Safety
50%inclusion2 decks4 decks
41%synergy
Cemetery Tampering
50%inclusion2 decks4 decks
49%synergy
All That Glitters
50%inclusion2 decks4 decks
42%synergy
Black Market Connections
50%inclusion2 decks4 decks
35%synergy
Ethereal Armor
50%inclusion2 decks4 decks
46%synergy
Ghostly Prison
50%inclusion2 decks4 decks
27%synergy
Propaganda
50%inclusion2 decks4 decks
20%synergy
Derelict Attic // Widow's Walk
33%inclusion1 decks3 decks
33%synergy
Darksteel Mutation
25%inclusion1 decks4 decks
19%synergy
Counterbalance
25%inclusion1 decks4 decks
23%synergy
Detention Sphere
25%inclusion1 decks4 decks
24%synergy
Parallax Wave
25%inclusion1 decks4 decks
25%synergy
Daybreak Coronet
25%inclusion1 decks4 decks
24%synergy
Grasp of Fate
25%inclusion1 decks4 decks
19%synergy
Ancestral Knowledge
25%inclusion1 decks4 decks
25%synergy
Underwater Tunnel // Slimy Aquarium
25%inclusion1 decks4 decks
25%synergy
Gift of Immortality
25%inclusion1 decks4 decks
23%synergy
Aqueous Form
25%inclusion1 decks4 decks
22%synergy
Imprisoned in the Moon
25%inclusion1 decks4 decks
18%synergy
Eldrazi Conscription
25%inclusion1 decks4 decks
24%synergy
Wizard Class
25%inclusion1 decks4 decks
22%synergy
Sigil of the Empty Throne
25%inclusion1 decks4 decks
19%synergy
Tinybones Joins Up
25%inclusion1 decks4 decks
24%synergy
Out of the Tombs
25%inclusion1 decks4 decks
25%synergy
Chronic Flooding
25%inclusion1 decks4 decks
25%synergy
Blind Obedience
25%inclusion1 decks4 decks
13%synergy
Teferi's Care
25%inclusion1 decks4 decks
25%synergy
Mantle of the Ancients
25%inclusion1 decks4 decks
23%synergy
Shielded by Faith
25%inclusion1 decks4 decks
23%synergy
Mirrormade
25%inclusion1 decks4 decks
15%synergy
Island Sanctuary
25%inclusion1 decks4 decks
25%synergy
Spirit Mantle
25%inclusion1 decks4 decks
24%synergy
Copy Enchantment
25%inclusion1 decks4 decks
20%synergy
Steel of the Godhead
25%inclusion1 decks4 decks
21%synergy
The Tale of Tamiyo
25%inclusion1 decks4 decks
25%synergy
Amphibian Downpour
25%inclusion1 decks4 decks
20%synergy
Unfulfilled Desires
25%inclusion1 decks4 decks
24%synergy
Curator's Ward
25%inclusion1 decks4 decks
23%synergy
Fraying Sanity
25%inclusion1 decks4 decks
25%synergy
Monologue Tax
25%inclusion1 decks4 decks
18%synergy
Planeswalkers
Teferi, Time Raveler
25%inclusion1 decks4 decks
17%synergy
Utility Lands
Urza's Saga
50%inclusion2 decks4 decks
38%synergy
Otawara, Soaring City
50%inclusion2 decks4 decks
31%synergy
Mystic Sanctuary
25%inclusion1 decks4 decks
21%synergy
Emergence Zone
25%inclusion1 decks4 decks
23%synergy
Sunken Palace
25%inclusion1 decks4 decks
25%synergy
Mana Artifacts
Arcane Signet
100%inclusion4 decks4 decks
12%synergy
Sol Ring
100%inclusion4 decks4 decks
10%synergy
Talisman of Dominance
75%inclusion3 decks4 decks
25%synergy
Talisman of Progress
50%inclusion2 decks4 decks
5%synergy
Lotus Petal
50%inclusion2 decks4 decks
40%synergy
Fellwar Stone
50%inclusion2 decks4 decks
17%synergy
Mox Opal
50%inclusion2 decks4 decks
42%synergy
Chrome Mox
50%inclusion2 decks4 decks
41%synergy
Grim Monolith
25%inclusion1 decks4 decks
22%synergy
Chromatic Lantern
25%inclusion1 decks4 decks
13%synergy
Mox Amber
25%inclusion1 decks4 decks
19%synergy
Talisman of Hierarchy
25%inclusion1 decks4 decks
-20%synergy
Skyclave Relic
25%inclusion1 decks4 decks
24%synergy
Lion's Eye Diamond
25%inclusion1 decks4 decks
23%synergy
Mox Diamond
25%inclusion1 decks4 decks
18%synergy
Lands
Command Tower
100%inclusion4 decks4 decks
7%synergy
Godless Shrine
100%inclusion4 decks4 decks
48%synergy
Scrubland
100%inclusion4 decks4 decks
84%synergy
Marsh Flats
100%inclusion4 decks4 decks
64%synergy
Polluted Delta
100%inclusion4 decks4 decks
62%synergy
Hallowed Fountain
100%inclusion4 decks4 decks
49%synergy
Flooded Strand
100%inclusion4 decks4 decks
61%synergy
Watery Grave
100%inclusion4 decks4 decks
48%synergy
Tundra
75%inclusion3 decks4 decks
59%synergy
Misty Rainforest
75%inclusion3 decks4 decks
64%synergy
Exotic Orchard
75%inclusion3 decks4 decks
16%synergy
Underground Sea
75%inclusion3 decks4 decks
59%synergy
Raffine's Tower
75%inclusion3 decks4 decks
34%synergy
Morphic Pool
75%inclusion3 decks4 decks
41%synergy
Mana Confluence
75%inclusion3 decks4 decks
61%synergy
Prismatic Vista
50%inclusion2 decks4 decks
46%synergy
Undercity Sewers
50%inclusion2 decks4 decks
35%synergy
Windswept Heath
50%inclusion2 decks4 decks
41%synergy
Swamp
50%inclusion2 decks4 decks
-42%synergy
Shipwreck Marsh
50%inclusion2 decks4 decks
29%synergy
Valgavoth's Lair
50%inclusion2 decks4 decks
48%synergy
Sea of Clouds
50%inclusion2 decks4 decks
15%synergy
Verdant Catacombs
50%inclusion2 decks4 decks
40%synergy
Island
50%inclusion2 decks4 decks
-43%synergy
Path of Ancestry
50%inclusion2 decks4 decks
22%synergy
Plains
50%inclusion2 decks4 decks
-42%synergy
Gemstone Caverns
50%inclusion2 decks4 decks
43%synergy
Arid Mesa
50%inclusion2 decks4 decks
41%synergy
Scalding Tarn
50%inclusion2 decks4 decks
40%synergy
Meticulous Archive
50%inclusion2 decks4 decks
36%synergy
Vault of Champions
50%inclusion2 decks4 decks
18%synergy
City of Brass
50%inclusion2 decks4 decks
35%synergy
Bloodstained Mire
50%inclusion2 decks4 decks
39%synergy
Glacial Fortress
25%inclusion1 decks4 decks
-19%synergy
Fell the Profane
25%inclusion1 decks4 decks
16%synergy
Fabled Passage
25%inclusion1 decks4 decks
17%synergy
Azorius Chancery
25%inclusion1 decks4 decks
12%synergy
Shadowy Backstreet
25%inclusion1 decks4 decks
12%synergy
Contaminated Landscape
25%inclusion1 decks4 decks
12%synergy
Concealed Courtyard
25%inclusion1 decks4 decks
21%synergy
Fetid Pools
25%inclusion1 decks4 decks
18%synergy
Temple of Deceit
25%inclusion1 decks4 decks
9%synergy
Irrigated Farmland
25%inclusion1 decks4 decks
18%synergy
Sea Gate Restoration
25%inclusion1 decks4 decks
22%synergy
Prairie Stream
25%inclusion1 decks4 decks
-16%synergy
Reflecting Pool
25%inclusion1 decks4 decks
17%synergy
Arcane Sanctum
25%inclusion1 decks4 decks
-29%synergy
Isolated Chapel
25%inclusion1 decks4 decks
-18%synergy
Drowned Catacomb
25%inclusion1 decks4 decks
-14%synergy
Cavern of Souls
25%inclusion1 decks4 decks
19%synergy
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