The Master of Keys (Commander) - Expensive Upgraded Control

The Master of Keys
Rank #304
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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Utility Lands
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Static Prison
100%inclusion4 decks4 decks
100%synergy
Dress Down
100%inclusion4 decks4 decks
98%synergy
Ripples of Undeath
100%inclusion4 decks4 decks
97%synergy
Amphibian Downpour
100%inclusion4 decks4 decks
95%synergy
Entomb
100%inclusion4 decks4 decks
93%synergy
Game Changers
Smothering Tithe
75%inclusion3 decks4 decks
45%synergy
Rhystic Study
75%inclusion3 decks4 decks
45%synergy
Intuition
50%inclusion2 decks4 decks
48%synergy
Demonic Tutor
50%inclusion2 decks4 decks
30%synergy
Imperial Seal
25%inclusion1 decks4 decks
18%synergy
Thassa's Oracle
25%inclusion1 decks4 decks
16%synergy
Grim Monolith
25%inclusion1 decks4 decks
22%synergy
Ancient Tomb
25%inclusion1 decks4 decks
13%synergy
Serra's Sanctum
25%inclusion1 decks4 decks
23%synergy
Gifts Ungiven
25%inclusion1 decks4 decks
22%synergy
Creatures
Lotho, Corrupt Shirriff
75%inclusion3 decks4 decks
58%synergy
Fear of Impostors
75%inclusion3 decks4 decks
74%synergy
Gravebreaker Lamia
50%inclusion2 decks4 decks
49%synergy
Valley Floodcaller
50%inclusion2 decks4 decks
46%synergy
Inquisitive Glimmer
50%inclusion2 decks4 decks
43%synergy
Esper Sentinel
50%inclusion2 decks4 decks
23%synergy
Hedron Crab
50%inclusion2 decks4 decks
49%synergy
Angel of Suffering
50%inclusion2 decks4 decks
50%synergy
Faerie Mastermind
50%inclusion2 decks4 decks
40%synergy
Witch Enchanter
25%inclusion1 decks4 decks
18%synergy
Stenn, Paranoid Partisan
25%inclusion1 decks4 decks
24%synergy
High Fae Trickster
25%inclusion1 decks4 decks
21%synergy
Starfield Mystic
25%inclusion1 decks4 decks
19%synergy
Y'shtola, Night's Blessed
25%inclusion1 decks4 decks
24%synergy
Sheoldred, the Apocalypse
25%inclusion1 decks4 decks
16%synergy
Doom Whisperer
25%inclusion1 decks4 decks
24%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
Overlord of the Balemurk
25%inclusion1 decks4 decks
23%synergy
Mesa Enchantress
25%inclusion1 decks4 decks
16%synergy
Talion, the Kindly Lord
25%inclusion1 decks4 decks
18%synergy
Laboratory Maniac
25%inclusion1 decks4 decks
22%synergy
Voice of Victory
25%inclusion1 decks4 decks
17%synergy
Abhorrent Oculus
25%inclusion1 decks4 decks
24%synergy
Jace's Archivist
25%inclusion1 decks4 decks
24%synergy
Mockingbird
25%inclusion1 decks4 decks
21%synergy
Doomwake Giant
25%inclusion1 decks4 decks
19%synergy
Heliod, the Radiant Dawn
25%inclusion1 decks4 decks
22%synergy
Grand Abolisher
25%inclusion1 decks4 decks
11%synergy
Entity Tracker
25%inclusion1 decks4 decks
19%synergy
Abdel Adrian, Gorion's Ward
25%inclusion1 decks4 decks
23%synergy
Ranger-Captain of Eos
25%inclusion1 decks4 decks
19%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
Braids, Arisen Nightmare
25%inclusion1 decks4 decks
24%synergy
Academy Rector
25%inclusion1 decks4 decks
24%synergy
Orcish Bowmasters
25%inclusion1 decks4 decks
15%synergy
Mirror-Mad Phantasm
25%inclusion1 decks4 decks
25%synergy
Emet-Selch of the Third Seat
25%inclusion1 decks4 decks
16%synergy
Fandaniel, Telophoroi Ascian
25%inclusion1 decks4 decks
19%synergy
Tataru Taru
25%inclusion1 decks4 decks
16%synergy
Wan Shi Tong, Librarian
25%inclusion1 decks4 decks
20%synergy
Instants
Swan Song
75%inclusion3 decks4 decks
55%synergy
Swords to Plowshares
75%inclusion3 decks4 decks
7%synergy
Mental Misstep
50%inclusion2 decks4 decks
44%synergy
An Offer You Can't Refuse
50%inclusion2 decks4 decks
22%synergy
Brain Freeze
50%inclusion2 decks4 decks
49%synergy
Flusterstorm
50%inclusion2 decks4 decks
42%synergy
Force of Negation
50%inclusion2 decks4 decks
38%synergy
Sink into Stupor
50%inclusion2 decks4 decks
37%synergy
Fell the Profane
25%inclusion1 decks4 decks
16%synergy
Tainted Pact
25%inclusion1 decks4 decks
18%synergy
Disrupting Shoal
25%inclusion1 decks4 decks
25%synergy
Mindbreak Trap
25%inclusion1 decks4 decks
18%synergy
Dark Ritual
25%inclusion1 decks4 decks
5%synergy
Cabal Ritual
25%inclusion1 decks4 decks
22%synergy
Darkblast
25%inclusion1 decks4 decks
25%synergy
Angel's Grace
25%inclusion1 decks4 decks
22%synergy
Mana Drain
25%inclusion1 decks4 decks
8%synergy
Silence
25%inclusion1 decks4 decks
15%synergy
Into the Flood Maw
25%inclusion1 decks4 decks
21%synergy
Force of Will
25%inclusion1 decks4 decks
13%synergy
Demonic Consultation
25%inclusion1 decks4 decks
17%synergy
Arcane Denial
25%inclusion1 decks4 decks
5%synergy
Anguished Unmaking
25%inclusion1 decks4 decks
-1%synergy
Commandeer
25%inclusion1 decks4 decks
24%synergy
Otherworldly Gaze
25%inclusion1 decks4 decks
23%synergy
Enlightened Tutor
25%inclusion1 decks4 decks
6%synergy
Borne Upon a Wind
25%inclusion1 decks4 decks
20%synergy
Fierce Guardianship
25%inclusion1 decks4 decks
5%synergy
Path to Exile
25%inclusion1 decks4 decks
-17%synergy
Sudden Substitution
25%inclusion1 decks4 decks
25%synergy
Vampiric Tutor
25%inclusion1 decks4 decks
8%synergy
Pact of Negation
25%inclusion1 decks4 decks
18%synergy
Mystical Tutor
25%inclusion1 decks4 decks
14%synergy
Sorceries
Glimpse the Unthinkable
50%inclusion2 decks4 decks
50%synergy
Beseech the Mirror
50%inclusion2 decks4 decks
46%synergy
Windfall
25%inclusion1 decks4 decks
12%synergy
Lively Dirge
25%inclusion1 decks4 decks
24%synergy
Resurgent Belief
25%inclusion1 decks4 decks
23%synergy
Sevinne's Reclamation
25%inclusion1 decks4 decks
16%synergy
Yawgmoth's Will
25%inclusion1 decks4 decks
24%synergy
Sea Gate Restoration
25%inclusion1 decks4 decks
22%synergy
Replenish
25%inclusion1 decks4 decks
23%synergy
Vindicate
25%inclusion1 decks4 decks
14%synergy
Scheming Symmetry
25%inclusion1 decks4 decks
24%synergy
Whispering Madness
25%inclusion1 decks4 decks
24%synergy
Reanimate
25%inclusion1 decks4 decks
9%synergy
Mnemonic Betrayal
25%inclusion1 decks4 decks
22%synergy
Dark Deal
25%inclusion1 decks4 decks
24%synergy
Space-Time Anomaly
25%inclusion1 decks4 decks
23%synergy
Flash Photography
25%inclusion1 decks4 decks
24%synergy
Utility Artifacts
Mesmeric Orb
75%inclusion3 decks4 decks
74%synergy
Perpetual Timepiece
25%inclusion1 decks4 decks
25%synergy
Enchantments
Dance of the Dead
75%inclusion3 decks4 decks
73%synergy
Out of the Tombs
75%inclusion3 decks4 decks
75%synergy
Necromancy
75%inclusion3 decks4 decks
71%synergy
Mystic Remora
75%inclusion3 decks4 decks
55%synergy
Leyline of Anticipation
75%inclusion3 decks4 decks
71%synergy
Seal of Cleansing
75%inclusion3 decks4 decks
74%synergy
Animate Dead
75%inclusion3 decks4 decks
65%synergy
Solitary Confinement
75%inclusion3 decks4 decks
73%synergy
Stillness in Motion
75%inclusion3 decks4 decks
75%synergy
Seal of Removal
75%inclusion3 decks4 decks
74%synergy
Founding the Third Path
50%inclusion2 decks4 decks
50%synergy
Imprisoned in the Moon
50%inclusion2 decks4 decks
43%synergy
Tinybones Joins Up
50%inclusion2 decks4 decks
49%synergy
Chronic Flooding
50%inclusion2 decks4 decks
50%synergy
Attunement
50%inclusion2 decks4 decks
50%synergy
Mirrormade
50%inclusion2 decks4 decks
40%synergy
Estrid's Invocation
50%inclusion2 decks4 decks
45%synergy
Copy Enchantment
50%inclusion2 decks4 decks
45%synergy
The Tale of Tamiyo
50%inclusion2 decks4 decks
50%synergy
Cemetery Tampering
50%inclusion2 decks4 decks
49%synergy
Greater Auramancy
50%inclusion2 decks4 decks
46%synergy
Chains of Mephistopheles
50%inclusion2 decks4 decks
50%synergy
Sinister Concoction
50%inclusion2 decks4 decks
50%synergy
Darksteel Mutation
25%inclusion1 decks4 decks
19%synergy
Momentum Breaker
25%inclusion1 decks4 decks
25%synergy
Counterbalance
25%inclusion1 decks4 decks
23%synergy
Parallax Wave
25%inclusion1 decks4 decks
25%synergy
The Meathook Massacre
25%inclusion1 decks4 decks
22%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
Moat
25%inclusion1 decks4 decks
25%synergy
Soul Snare
25%inclusion1 decks4 decks
25%synergy
Touch the Spirit Realm
25%inclusion1 decks4 decks
23%synergy
Authority of the Consuls
25%inclusion1 decks4 decks
12%synergy
Blind Obedience
25%inclusion1 decks4 decks
13%synergy
Dance of Many
25%inclusion1 decks4 decks
25%synergy
Omniscience
25%inclusion1 decks4 decks
21%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
Sphere of Safety
25%inclusion1 decks4 decks
16%synergy
Necropotence
25%inclusion1 decks4 decks
19%synergy
All That Glitters
25%inclusion1 decks4 decks
17%synergy
Second Chance
25%inclusion1 decks4 decks
25%synergy
Wound Reflection
25%inclusion1 decks4 decks
24%synergy
Enhanced Surveillance
25%inclusion1 decks4 decks
24%synergy
Painful Quandary
25%inclusion1 decks4 decks
22%synergy
Zur's Weirding
25%inclusion1 decks4 decks
25%synergy
Planeswalkers
Ashiok, Dream Render
50%inclusion2 decks4 decks
49%synergy
Jace, the Perfected Mind
25%inclusion1 decks4 decks
25%synergy
Jace, Wielder of Mysteries
25%inclusion1 decks4 decks
23%synergy
Utility Lands
Urza's Saga
25%inclusion1 decks4 decks
13%synergy
Bazaar of Baghdad
25%inclusion1 decks4 decks
25%synergy
Otawara, Soaring City
25%inclusion1 decks4 decks
6%synergy
City of Traitors
25%inclusion1 decks4 decks
24%synergy
Mana Artifacts
Sol Ring
100%inclusion4 decks4 decks
10%synergy
Arcane Signet
50%inclusion2 decks4 decks
-38%synergy
Lotus Petal
25%inclusion1 decks4 decks
15%synergy
Talisman of Dominance
25%inclusion1 decks4 decks
-25%synergy
Mana Vault
25%inclusion1 decks4 decks
16%synergy
Fellwar Stone
25%inclusion1 decks4 decks
-8%synergy
Chrome Mox
25%inclusion1 decks4 decks
16%synergy
Mox Diamond
25%inclusion1 decks4 decks
18%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
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
Scalding Tarn
100%inclusion4 decks4 decks
89%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
49%synergy
Shadowy Backstreet
75%inclusion3 decks4 decks
62%synergy
Exotic Orchard
75%inclusion3 decks4 decks
16%synergy
Swamp
75%inclusion3 decks4 decks
-17%synergy
Verdant Catacombs
75%inclusion3 decks4 decks
65%synergy
Island
75%inclusion3 decks4 decks
-18%synergy
Meticulous Archive
75%inclusion3 decks4 decks
61%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
Sea of Clouds
50%inclusion2 decks4 decks
15%synergy
Raffine's Tower
50%inclusion2 decks4 decks
9%synergy
Plains
50%inclusion2 decks4 decks
-42%synergy
Sink into Stupor
50%inclusion2 decks4 decks
37%synergy
Morphic Pool
50%inclusion2 decks4 decks
16%synergy
Gemstone Caverns
50%inclusion2 decks4 decks
43%synergy
Vault of Champions
50%inclusion2 decks4 decks
18%synergy
Glacial Fortress
25%inclusion1 decks4 decks
-18%synergy
Prismatic Vista
25%inclusion1 decks4 decks
21%synergy
Witch Enchanter
25%inclusion1 decks4 decks
18%synergy
Fell the Profane
25%inclusion1 decks4 decks
16%synergy
Caves of Koilos
25%inclusion1 decks4 decks
-11%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
Reflecting Pool
25%inclusion1 decks4 decks
17%synergy
Isolated Chapel
25%inclusion1 decks4 decks
-17%synergy
Drowned Catacomb
25%inclusion1 decks4 decks
-13%synergy
Underground River
25%inclusion1 decks4 decks
-10%synergy
Talon Gates of Madara
25%inclusion1 decks4 decks
24%synergy
Shattered Sanctum
25%inclusion1 decks4 decks
8%synergy
Forbidden Orchard
25%inclusion1 decks4 decks
23%synergy
Adarkar Wastes
25%inclusion1 decks4 decks
-8%synergy
Gloomlake Verge
25%inclusion1 decks4 decks
14%synergy
Sunken Ruins
25%inclusion1 decks4 decks
15%synergy
Mystic Gate
25%inclusion1 decks4 decks
19%synergy
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