The Master of Keys (Commander) - Expensive Topdeck

The Master of Keys
Rank #314
2decks
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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
Moxfield
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Instants
Sorceries
Utility Artifacts
Enchantments
Planeswalkers
Utility Lands
Mana Artifacts
Lands
Back to Top
Smothering Tithe
100%inclusion2 decks2 decks
68%synergy
Rhystic Study
100%inclusion2 decks2 decks
68%synergy
Vampiric Tutor
100%inclusion2 decks2 decks
82%synergy
Teferi's Protection
50%inclusion1 decks2 decks
33%synergy
Imperial Seal
50%inclusion1 decks2 decks
42%synergy
Thassa's Oracle
50%inclusion1 decks2 decks
40%synergy
Ancient Tomb
50%inclusion1 decks2 decks
37%synergy
Intuition
50%inclusion1 decks2 decks
48%synergy
Mana Vault
50%inclusion1 decks2 decks
41%synergy
Demonic Tutor
50%inclusion1 decks2 decks
29%synergy
Creatures
Aminatou, Veil Piercer
100%inclusion2 decks2 decks
99%synergy
Zur the Enchanter
100%inclusion2 decks2 decks
95%synergy
Metamorphosis Fanatic
50%inclusion1 decks2 decks
45%synergy
Displacer Kitten
50%inclusion1 decks2 decks
43%synergy
Starfield Mystic
50%inclusion1 decks2 decks
43%synergy
Lurrus of the Dream-Den
50%inclusion1 decks2 decks
48%synergy
Valley Floodcaller
50%inclusion1 decks2 decks
46%synergy
Inquisitive Glimmer
50%inclusion1 decks2 decks
42%synergy
Dream Eater
50%inclusion1 decks2 decks
49%synergy
Fear of Surveillance
50%inclusion1 decks2 decks
50%synergy
Demon of Fate's Design
50%inclusion1 decks2 decks
45%synergy
Esper Sentinel
50%inclusion1 decks2 decks
22%synergy
Moon-Blessed Cleric
50%inclusion1 decks2 decks
45%synergy
Mesa Enchantress
50%inclusion1 decks2 decks
41%synergy
Prognostic Sphinx
50%inclusion1 decks2 decks
49%synergy
Enduring Tenacity
50%inclusion1 decks2 decks
43%synergy
Athreos, Shroud-Veiled
50%inclusion1 decks2 decks
46%synergy
Arvinox, the Mind Flail
50%inclusion1 decks2 decks
48%synergy
Fear of Sleep Paralysis
50%inclusion1 decks2 decks
44%synergy
Drannith Magistrate
50%inclusion1 decks2 decks
42%synergy
Creeping Peeper
50%inclusion1 decks2 decks
50%synergy
Verge Rangers
50%inclusion1 decks2 decks
49%synergy
Mockingbird
50%inclusion1 decks2 decks
46%synergy
Doomwake Giant
50%inclusion1 decks2 decks
44%synergy
Auramancer
50%inclusion1 decks2 decks
47%synergy
Grand Abolisher
50%inclusion1 decks2 decks
35%synergy
Entity Tracker
50%inclusion1 decks2 decks
44%synergy
Abdel Adrian, Gorion's Ward
50%inclusion1 decks2 decks
48%synergy
Zur, Eternal Schemer
50%inclusion1 decks2 decks
47%synergy
Ondu Spiritdancer
50%inclusion1 decks2 decks
44%synergy
Hullbreaker Horror
50%inclusion1 decks2 decks
44%synergy
Braids, Arisen Nightmare
50%inclusion1 decks2 decks
49%synergy
Orcish Bowmasters
50%inclusion1 decks2 decks
39%synergy
Instants
Swords to Plowshares
100%inclusion2 decks2 decks
32%synergy
Telling Time
50%inclusion1 decks2 decks
48%synergy
Mental Misstep
50%inclusion1 decks2 decks
43%synergy
Tainted Pact
50%inclusion1 decks2 decks
42%synergy
An Offer You Can't Refuse
50%inclusion1 decks2 decks
23%synergy
Entomb
50%inclusion1 decks2 decks
43%synergy
Return to Dust
50%inclusion1 decks2 decks
46%synergy
Brainstorm
50%inclusion1 decks2 decks
33%synergy
Brain Freeze
50%inclusion1 decks2 decks
49%synergy
Dark Ritual
50%inclusion1 decks2 decks
31%synergy
Mana Drain
50%inclusion1 decks2 decks
33%synergy
Flusterstorm
50%inclusion1 decks2 decks
42%synergy
Silence
50%inclusion1 decks2 decks
40%synergy
Force of Will
50%inclusion1 decks2 decks
37%synergy
Ad Nauseam
50%inclusion1 decks2 decks
48%synergy
Demonic Consultation
50%inclusion1 decks2 decks
42%synergy
Arcane Denial
50%inclusion1 decks2 decks
30%synergy
Force of Negation
50%inclusion1 decks2 decks
38%synergy
Enlightened Tutor
50%inclusion1 decks2 decks
30%synergy
Borne Upon a Wind
50%inclusion1 decks2 decks
45%synergy
Fierce Guardianship
50%inclusion1 decks2 decks
29%synergy
Cyclonic Rift
50%inclusion1 decks2 decks
25%synergy
Inkshield
50%inclusion1 decks2 decks
41%synergy
Pact of Negation
50%inclusion1 decks2 decks
42%synergy
Sorceries
Ponder
50%inclusion1 decks2 decks
41%synergy
Sevinne's Reclamation
50%inclusion1 decks2 decks
41%synergy
Time Wipe
50%inclusion1 decks2 decks
43%synergy
Read the Bones
50%inclusion1 decks2 decks
46%synergy
Preordain
50%inclusion1 decks2 decks
45%synergy
Redress Fate
50%inclusion1 decks2 decks
44%synergy
Utility Artifacts
Sensei's Divining Top
50%inclusion1 decks2 decks
40%synergy
Enchantments
Ripples of Undeath
100%inclusion2 decks2 decks
97%synergy
Land Tax
100%inclusion2 decks2 decks
94%synergy
One with the Multiverse
50%inclusion1 decks2 decks
45%synergy
Dance of the Dead
50%inclusion1 decks2 decks
48%synergy
Cramped Vents // Access Maze
50%inclusion1 decks2 decks
47%synergy
Underwater Tunnel // Slimy Aquarium
50%inclusion1 decks2 decks
50%synergy
Extravagant Replication
50%inclusion1 decks2 decks
45%synergy
Sigil of the Empty Throne
50%inclusion1 decks2 decks
44%synergy
Flowering of the White Tree
50%inclusion1 decks2 decks
48%synergy
Tinybones Joins Up
50%inclusion1 decks2 decks
49%synergy
The Eldest Reborn
50%inclusion1 decks2 decks
48%synergy
Touch the Spirit Realm
50%inclusion1 decks2 decks
47%synergy
Blind Obedience
50%inclusion1 decks2 decks
38%synergy
Vampiric Rites
50%inclusion1 decks2 decks
49%synergy
Necromancy
50%inclusion1 decks2 decks
45%synergy
Spirit Loop
50%inclusion1 decks2 decks
50%synergy
Mirrormade
50%inclusion1 decks2 decks
40%synergy
The Creation of Avacyn
50%inclusion1 decks2 decks
50%synergy
Copy Artifact
50%inclusion1 decks2 decks
49%synergy
Spirit-Sister's Call
50%inclusion1 decks2 decks
49%synergy
Mystic Remora
50%inclusion1 decks2 decks
29%synergy
Shark Typhoon
50%inclusion1 decks2 decks
44%synergy
Idolized
50%inclusion1 decks2 decks
49%synergy
Timely Ward
50%inclusion1 decks2 decks
45%synergy
Central Elevator // Promising Stairs
50%inclusion1 decks2 decks
49%synergy
Sphere of Safety
50%inclusion1 decks2 decks
41%synergy
Necropotence
50%inclusion1 decks2 decks
43%synergy
Phyresis
50%inclusion1 decks2 decks
48%synergy
All That Glitters
50%inclusion1 decks2 decks
41%synergy
Second Chance
50%inclusion1 decks2 decks
50%synergy
Monologue Tax
50%inclusion1 decks2 decks
44%synergy
Bottomless Pool // Locker Room
50%inclusion1 decks2 decks
48%synergy
Animate Dead
50%inclusion1 decks2 decks
40%synergy
Dress Down
50%inclusion1 decks2 decks
48%synergy
Dazzling Theater // Prop Room
50%inclusion1 decks2 decks
48%synergy
Secret Arcade // Dusty Parlor
50%inclusion1 decks2 decks
45%synergy
Sun Clasp
50%inclusion1 decks2 decks
50%synergy
Phyrexian Etchings
50%inclusion1 decks2 decks
50%synergy
Black Market Connections
50%inclusion1 decks2 decks
36%synergy
Aura of Silence
50%inclusion1 decks2 decks
47%synergy
Propaganda
50%inclusion1 decks2 decks
23%synergy
Search for Azcanta
50%inclusion1 decks2 decks
49%synergy
Planeswalkers
Dakkon, Shadow Slayer
50%inclusion1 decks2 decks
48%synergy
Teferi, Time Raveler
50%inclusion1 decks2 decks
42%synergy
Utility Lands
Bojuka Bog
50%inclusion1 decks2 decks
23%synergy
Hall of Heliod's Generosity
50%inclusion1 decks2 decks
37%synergy
Halimar Depths
50%inclusion1 decks2 decks
45%synergy
Urza's Saga
50%inclusion1 decks2 decks
38%synergy
Otawara, Soaring City
50%inclusion1 decks2 decks
31%synergy
Mana Artifacts
Arcane Signet
100%inclusion2 decks2 decks
12%synergy
Sol Ring
100%inclusion2 decks2 decks
10%synergy
Commander's Sphere
50%inclusion1 decks2 decks
31%synergy
Lotus Petal
50%inclusion1 decks2 decks
39%synergy
Fellwar Stone
50%inclusion1 decks2 decks
16%synergy
Mind Stone
50%inclusion1 decks2 decks
37%synergy
Mox Opal
50%inclusion1 decks2 decks
41%synergy
Orzhov Signet
50%inclusion1 decks2 decks
16%synergy
Azorius Signet
50%inclusion1 decks2 decks
18%synergy
Chrome Mox
50%inclusion1 decks2 decks
40%synergy
Lion's Eye Diamond
50%inclusion1 decks2 decks
48%synergy
Mox Diamond
50%inclusion1 decks2 decks
43%synergy
Lands
Tundra
100%inclusion2 decks2 decks
84%synergy
Command Tower
100%inclusion2 decks2 decks
8%synergy
Undercity Sewers
100%inclusion2 decks2 decks
86%synergy
Underground Sea
100%inclusion2 decks2 decks
84%synergy
Scrubland
100%inclusion2 decks2 decks
84%synergy
Meticulous Archive
100%inclusion2 decks2 decks
86%synergy
Tainted Isle
50%inclusion1 decks2 decks
44%synergy
Misty Rainforest
50%inclusion1 decks2 decks
39%synergy
Shadowy Backstreet
50%inclusion1 decks2 decks
38%synergy
Exotic Orchard
50%inclusion1 decks2 decks
-9%synergy
Windswept Heath
50%inclusion1 decks2 decks
40%synergy
Temple of Deceit
50%inclusion1 decks2 decks
32%synergy
Caves of Koilos
50%inclusion1 decks2 decks
15%synergy
Tainted Field
50%inclusion1 decks2 decks
43%synergy
Swamp
50%inclusion1 decks2 decks
-41%synergy
Sea of Clouds
50%inclusion1 decks2 decks
14%synergy
Verdant Catacombs
50%inclusion1 decks2 decks
40%synergy
Godless Shrine
50%inclusion1 decks2 decks
0%synergy
Underground River
50%inclusion1 decks2 decks
17%synergy
Temple of Enlightenment
50%inclusion1 decks2 decks
33%synergy
Island
50%inclusion1 decks2 decks
-43%synergy
Plains
50%inclusion1 decks2 decks
-41%synergy
Gemstone Caverns
50%inclusion1 decks2 decks
42%synergy
Arid Mesa
50%inclusion1 decks2 decks
40%synergy
Scalding Tarn
50%inclusion1 decks2 decks
39%synergy
Mana Confluence
50%inclusion1 decks2 decks
36%synergy
Adarkar Wastes
50%inclusion1 decks2 decks
19%synergy
Marsh Flats
50%inclusion1 decks2 decks
14%synergy
Temple of Silence
50%inclusion1 decks2 decks
30%synergy
Vault of Champions
50%inclusion1 decks2 decks
17%synergy
Polluted Delta
50%inclusion1 decks2 decks
13%synergy
Hallowed Fountain
50%inclusion1 decks2 decks
1%synergy
City of Brass
50%inclusion1 decks2 decks
35%synergy
Flooded Strand
50%inclusion1 decks2 decks
12%synergy
Bloodstained Mire
50%inclusion1 decks2 decks
39%synergy
Watery Grave
50%inclusion1 decks2 decks
0%synergy
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