The Master of Keys (Commander) - Expensive Upgraded Control

The Master of Keys
Rank #303
4decks
As CommanderAs CardAverage DeckDecksView Precon
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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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Utility Lands
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Stillness in Motion
100%inclusion4 decks4 decks
100%synergy
Static Prison
100%inclusion4 decks4 decks
100%synergy
Out of the Tombs
100%inclusion4 decks4 decks
100%synergy
Seal of Removal
100%inclusion4 decks4 decks
99%synergy
Mesmeric Orb
100%inclusion4 decks4 decks
99%synergy
Fear of Impostors
100%inclusion4 decks4 decks
99%synergy
Seal of Cleansing
100%inclusion4 decks4 decks
99%synergy
Solitary Confinement
100%inclusion4 decks4 decks
98%synergy
Dress Down
100%inclusion4 decks4 decks
98%synergy
Ripples of Undeath
100%inclusion4 decks4 decks
97%synergy
Top Cards
Entomb
100%inclusion4 decks4 decks
93%synergy
Leyline of Anticipation
100%inclusion4 decks4 decks
96%synergy
Amphibian Downpour
100%inclusion4 decks4 decks
95%synergy
Game Changers
Smothering Tithe
75%inclusion3 decks4 decks
45%synergy
Rhystic Study
75%inclusion3 decks4 decks
45%synergy
Demonic Tutor
50%inclusion2 decks4 decks
30%synergy
Serra's Sanctum
25%inclusion1 decks4 decks
23%synergy
Intuition
25%inclusion1 decks4 decks
23%synergy
Gifts Ungiven
25%inclusion1 decks4 decks
22%synergy
Creatures
Hedron Crab
75%inclusion3 decks4 decks
74%synergy
Gravebreaker Lamia
75%inclusion3 decks4 decks
74%synergy
Inquisitive Glimmer
75%inclusion3 decks4 decks
68%synergy
Angel of Suffering
75%inclusion3 decks4 decks
75%synergy
Stenn, Paranoid Partisan
50%inclusion2 decks4 decks
49%synergy
Lotho, Corrupt Shirriff
50%inclusion2 decks4 decks
33%synergy
Starfield Mystic
50%inclusion2 decks4 decks
44%synergy
Doom Whisperer
50%inclusion2 decks4 decks
49%synergy
Esper Sentinel
50%inclusion2 decks4 decks
23%synergy
Laboratory Maniac
50%inclusion2 decks4 decks
47%synergy
Mirror-Mad Phantasm
50%inclusion2 decks4 decks
50%synergy
Witch Enchanter
25%inclusion1 decks4 decks
18%synergy
Agent of Treachery
25%inclusion1 decks4 decks
23%synergy
Malevolent Hermit
25%inclusion1 decks4 decks
24%synergy
Demon of Fate's Design
25%inclusion1 decks4 decks
20%synergy
Mesa Enchantress
25%inclusion1 decks4 decks
16%synergy
High Fae Trickster
25%inclusion1 decks4 decks
21%synergy
Y'shtola, Night's Blessed
25%inclusion1 decks4 decks
24%synergy
Sheoldred, the Apocalypse
25%inclusion1 decks4 decks
16%synergy
Valley Floodcaller
25%inclusion1 decks4 decks
21%synergy
Overlord of the Balemurk
25%inclusion1 decks4 decks
23%synergy
Faerie Mastermind
25%inclusion1 decks4 decks
15%synergy
Jace's Archivist
25%inclusion1 decks4 decks
24%synergy
Talion, the Kindly Lord
25%inclusion1 decks4 decks
18%synergy
Braids, Arisen Nightmare
25%inclusion1 decks4 decks
24%synergy
Academy Rector
25%inclusion1 decks4 decks
24%synergy
Abhorrent Oculus
25%inclusion1 decks4 decks
24%synergy
Doomwake Giant
25%inclusion1 decks4 decks
19%synergy
Heliod, the Radiant Dawn
25%inclusion1 decks4 decks
22%synergy
Entity Tracker
25%inclusion1 decks4 decks
19%synergy
Zur the Enchanter
25%inclusion1 decks4 decks
20%synergy
Emet-Selch of the Third Seat
25%inclusion1 decks4 decks
16%synergy
Fandaniel, Telophoroi Ascian
25%inclusion1 decks4 decks
19%synergy
Instants
An Offer You Can't Refuse
75%inclusion3 decks4 decks
47%synergy
Swan Song
75%inclusion3 decks4 decks
55%synergy
Darkblast
50%inclusion2 decks4 decks
50%synergy
Brain Freeze
50%inclusion2 decks4 decks
49%synergy
Mana Drain
50%inclusion2 decks4 decks
33%synergy
Arcane Denial
50%inclusion2 decks4 decks
30%synergy
Swords to Plowshares
50%inclusion2 decks4 decks
-18%synergy
Otherworldly Gaze
50%inclusion2 decks4 decks
48%synergy
Fell the Profane
25%inclusion1 decks4 decks
16%synergy
Mental Misstep
25%inclusion1 decks4 decks
19%synergy
Flusterstorm
25%inclusion1 decks4 decks
17%synergy
Force of Negation
25%inclusion1 decks4 decks
13%synergy
Path to Exile
25%inclusion1 decks4 decks
-17%synergy
Anguished Unmaking
25%inclusion1 decks4 decks
-1%synergy
Sink into Stupor
25%inclusion1 decks4 decks
12%synergy
Sorceries
Glimpse the Unthinkable
75%inclusion3 decks4 decks
75%synergy
Sevinne's Reclamation
50%inclusion2 decks4 decks
41%synergy
Replenish
50%inclusion2 decks4 decks
48%synergy
Scheming Symmetry
50%inclusion2 decks4 decks
49%synergy
Space-Time Anomaly
50%inclusion2 decks4 decks
48%synergy
Resurgent Belief
25%inclusion1 decks4 decks
23%synergy
Sea Gate Restoration
25%inclusion1 decks4 decks
22%synergy
Windfall
25%inclusion1 decks4 decks
12%synergy
Lively Dirge
25%inclusion1 decks4 decks
24%synergy
Yawgmoth's Will
25%inclusion1 decks4 decks
24%synergy
Vindicate
25%inclusion1 decks4 decks
14%synergy
Whispering Madness
25%inclusion1 decks4 decks
24%synergy
Dark Deal
25%inclusion1 decks4 decks
24%synergy
Beseech the Mirror
25%inclusion1 decks4 decks
21%synergy
Utility Artifacts
Perpetual Timepiece
50%inclusion2 decks4 decks
50%synergy
Enchantments
Attunement
75%inclusion3 decks4 decks
75%synergy
Dance of the Dead
75%inclusion3 decks4 decks
73%synergy
Imprisoned in the Moon
75%inclusion3 decks4 decks
68%synergy
Chronic Flooding
75%inclusion3 decks4 decks
75%synergy
Necromancy
75%inclusion3 decks4 decks
71%synergy
Estrid's Invocation
75%inclusion3 decks4 decks
70%synergy
Mystic Remora
75%inclusion3 decks4 decks
55%synergy
The Tale of Tamiyo
75%inclusion3 decks4 decks
75%synergy
Cemetery Tampering
75%inclusion3 decks4 decks
74%synergy
Animate Dead
75%inclusion3 decks4 decks
65%synergy
Greater Auramancy
75%inclusion3 decks4 decks
71%synergy
Chains of Mephistopheles
75%inclusion3 decks4 decks
75%synergy
Sinister Concoction
75%inclusion3 decks4 decks
75%synergy
Authority of the Consuls
50%inclusion2 decks4 decks
37%synergy
Mirrormade
50%inclusion2 decks4 decks
40%synergy
Copy Enchantment
50%inclusion2 decks4 decks
45%synergy
Enhanced Surveillance
50%inclusion2 decks4 decks
49%synergy
Ghostly Prison
50%inclusion2 decks4 decks
27%synergy
Propaganda
50%inclusion2 decks4 decks
21%synergy
Chakra Meditation
50%inclusion2 decks4 decks
50%synergy
Darksteel Mutation
25%inclusion1 decks4 decks
19%synergy
Momentum Breaker
25%inclusion1 decks4 decks
25%synergy
Parallax Wave
25%inclusion1 decks4 decks
25%synergy
Grasp of Fate
25%inclusion1 decks4 decks
19%synergy
Cacophony Unleashed
25%inclusion1 decks4 decks
23%synergy
Court of Cunning
25%inclusion1 decks4 decks
24%synergy
Dissipation Field
25%inclusion1 decks4 decks
24%synergy
Moat
25%inclusion1 decks4 decks
25%synergy
Soul Snare
25%inclusion1 decks4 decks
25%synergy
Dance of Many
25%inclusion1 decks4 decks
25%synergy
Omniscience
25%inclusion1 decks4 decks
21%synergy
Counterbalance
25%inclusion1 decks4 decks
23%synergy
Founding the Third Path
25%inclusion1 decks4 decks
25%synergy
The Meathook Massacre
25%inclusion1 decks4 decks
22%synergy
Out of Time
25%inclusion1 decks4 decks
24%synergy
Forbidden Crypt
25%inclusion1 decks4 decks
25%synergy
Shark Typhoon
25%inclusion1 decks4 decks
19%synergy
Starfield of Nyx
25%inclusion1 decks4 decks
21%synergy
Tinybones Joins Up
25%inclusion1 decks4 decks
24%synergy
Blind Obedience
25%inclusion1 decks4 decks
13%synergy
Sphere of Safety
25%inclusion1 decks4 decks
16%synergy
Second Chance
25%inclusion1 decks4 decks
25%synergy
Wound Reflection
25%inclusion1 decks4 decks
24%synergy
All That Glitters
25%inclusion1 decks4 decks
17%synergy
Painful Quandary
25%inclusion1 decks4 decks
22%synergy
Zur's Weirding
25%inclusion1 decks4 decks
25%synergy
Polluted Cistern // Dim Oubliette
25%inclusion1 decks4 decks
24%synergy
Bloodchief Ascension
25%inclusion1 decks4 decks
19%synergy
Doom Foretold
25%inclusion1 decks4 decks
25%synergy
Aura of Silence
25%inclusion1 decks4 decks
22%synergy
Planeswalkers
Ashiok, Dream Render
75%inclusion3 decks4 decks
74%synergy
Jace, the Perfected Mind
25%inclusion1 decks4 decks
25%synergy
Jace, Wielder of Mysteries
25%inclusion1 decks4 decks
23%synergy
Utility Lands
Bazaar of Baghdad
25%inclusion1 decks4 decks
25%synergy
Urza's Saga
25%inclusion1 decks4 decks
13%synergy
Mana Artifacts
Sol Ring
100%inclusion4 decks4 decks
10%synergy
Arcane Signet
25%inclusion1 decks4 decks
-63%synergy
Lands
Tundra
100%inclusion4 decks4 decks
84%synergy
Command Tower
100%inclusion4 decks4 decks
7%synergy
Undercity Sewers
100%inclusion4 decks4 decks
85%synergy
Misty Rainforest
100%inclusion4 decks4 decks
89%synergy
Shadowy Backstreet
100%inclusion4 decks4 decks
87%synergy
Windswept Heath
100%inclusion4 decks4 decks
91%synergy
Underground Sea
100%inclusion4 decks4 decks
84%synergy
Godless Shrine
100%inclusion4 decks4 decks
48%synergy
Arid Mesa
100%inclusion4 decks4 decks
91%synergy
Scrubland
100%inclusion4 decks4 decks
84%synergy
Marsh Flats
100%inclusion4 decks4 decks
64%synergy
Polluted Delta
100%inclusion4 decks4 decks
62%synergy
Flooded Strand
100%inclusion4 decks4 decks
61%synergy
Scalding Tarn
100%inclusion4 decks4 decks
89%synergy
Meticulous Archive
100%inclusion4 decks4 decks
86%synergy
Hallowed Fountain
100%inclusion4 decks4 decks
49%synergy
Watery Grave
100%inclusion4 decks4 decks
49%synergy
Verdant Catacombs
75%inclusion3 decks4 decks
65%synergy
Exotic Orchard
75%inclusion3 decks4 decks
16%synergy
Swamp
75%inclusion3 decks4 decks
-17%synergy
Sea of Clouds
75%inclusion3 decks4 decks
40%synergy
Island
75%inclusion3 decks4 decks
-18%synergy
Plains
75%inclusion3 decks4 decks
-17%synergy
Morphic Pool
75%inclusion3 decks4 decks
41%synergy
Mana Confluence
75%inclusion3 decks4 decks
61%synergy
City of Brass
75%inclusion3 decks4 decks
60%synergy
Bloodstained Mire
75%inclusion3 decks4 decks
64%synergy
Vault of Champions
75%inclusion3 decks4 decks
43%synergy
Raffine's Tower
50%inclusion2 decks4 decks
9%synergy
Prismatic Vista
50%inclusion2 decks4 decks
46%synergy
Caves of Koilos
50%inclusion2 decks4 decks
14%synergy
Underground River
50%inclusion2 decks4 decks
15%synergy
Forbidden Orchard
50%inclusion2 decks4 decks
48%synergy
Adarkar Wastes
50%inclusion2 decks4 decks
17%synergy
Gloomlake Verge
50%inclusion2 decks4 decks
39%synergy
Sunken Ruins
50%inclusion2 decks4 decks
40%synergy
Floodfarm Verge
50%inclusion2 decks4 decks
39%synergy
Mystic Gate
50%inclusion2 decks4 decks
44%synergy
Glacial Fortress
25%inclusion1 decks4 decks
-18%synergy
Witch Enchanter
25%inclusion1 decks4 decks
18%synergy
Fell the Profane
25%inclusion1 decks4 decks
16%synergy
Sea Gate Restoration
25%inclusion1 decks4 decks
22%synergy
Shipwreck Marsh
25%inclusion1 decks4 decks
4%synergy
Tarnished Citadel
25%inclusion1 decks4 decks
24%synergy
Isolated Chapel
25%inclusion1 decks4 decks
-17%synergy
Drowned Catacomb
25%inclusion1 decks4 decks
-13%synergy
Reflecting Pool
25%inclusion1 decks4 decks
17%synergy
Gemstone Caverns
25%inclusion1 decks4 decks
18%synergy
Sink into Stupor
25%inclusion1 decks4 decks
12%synergy
Shattered Sanctum
25%inclusion1 decks4 decks
8%synergy
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