The Master of Keys (Commander) - Expensive Optimized Enchantress

The Master of Keys
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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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Abdel Adrian, Gorion's Ward
100%inclusion6 decks6 decks
98%synergy
Necromancy
100%inclusion6 decks6 decks
95%synergy
Entomb
100%inclusion6 decks6 decks
93%synergy
Animate Dead
100%inclusion6 decks6 decks
90%synergy
Tinybones Joins Up
83%inclusion5 decks6 decks
82%synergy
Valley Floodcaller
83%inclusion5 decks6 decks
79%synergy
Mystic Remora
100%inclusion6 decks6 decks
79%synergy
Displacer Kitten
83%inclusion5 decks6 decks
76%synergy
Wishclaw Talisman
83%inclusion5 decks6 decks
75%synergy
Flusterstorm
83%inclusion5 decks6 decks
75%synergy
Top Cards
Esper Sentinel
100%inclusion6 decks6 decks
73%synergy
Dark Ritual
83%inclusion5 decks6 decks
64%synergy
Silence
83%inclusion5 decks6 decks
73%synergy
Swords to Plowshares
83%inclusion5 decks6 decks
15%synergy
Lotho, Corrupt Shirriff
67%inclusion4 decks6 decks
50%synergy
Sevinne's Reclamation
67%inclusion4 decks6 decks
58%synergy
Lurrus of the Dream-Den
67%inclusion4 decks6 decks
65%synergy
Cabal Ritual
67%inclusion4 decks6 decks
63%synergy
Necropotence
67%inclusion4 decks6 decks
60%synergy
Force of Will
67%inclusion4 decks6 decks
54%synergy
Game Changers
Smothering Tithe
100%inclusion6 decks6 decks
69%synergy
Rhystic Study
100%inclusion6 decks6 decks
69%synergy
Ancient Tomb
83%inclusion5 decks6 decks
71%synergy
Demonic Tutor
83%inclusion5 decks6 decks
63%synergy
Enlightened Tutor
83%inclusion5 decks6 decks
64%synergy
Orcish Bowmasters
83%inclusion5 decks6 decks
73%synergy
Chrome Mox
83%inclusion5 decks6 decks
74%synergy
Vampiric Tutor
83%inclusion5 decks6 decks
66%synergy
The One Ring
67%inclusion4 decks6 decks
53%synergy
Mana Vault
67%inclusion4 decks6 decks
58%synergy
Creatures
Mockingbird
67%inclusion4 decks6 decks
62%synergy
Hullbreaker Horror
67%inclusion4 decks6 decks
61%synergy
Thassa's Oracle
50%inclusion3 decks6 decks
41%synergy
Leonin Relic-Warder
50%inclusion3 decks6 decks
50%synergy
Drannith Magistrate
50%inclusion3 decks6 decks
42%synergy
Ranger-Captain of Eos
50%inclusion3 decks6 decks
44%synergy
Ledger Shredder
50%inclusion3 decks6 decks
41%synergy
Archivist of Oghma
33%inclusion2 decks6 decks
27%synergy
Hoarding Broodlord
33%inclusion2 decks6 decks
32%synergy
Opposition Agent
33%inclusion2 decks6 decks
25%synergy
Phyrexian Metamorph
33%inclusion2 decks6 decks
25%synergy
Hedron Crab
33%inclusion2 decks6 decks
33%synergy
Grand Abolisher
33%inclusion2 decks6 decks
19%synergy
Auriok Salvagers
33%inclusion2 decks6 decks
33%synergy
Psychic Frog
33%inclusion2 decks6 decks
26%synergy
Voice of Victory
20%inclusion1 decks5 decks
12%synergy
Volatile Stormdrake
17%inclusion1 decks6 decks
15%synergy
Corpse Knight
17%inclusion1 decks6 decks
6%synergy
Bruvac the Grandiloquent
17%inclusion1 decks6 decks
16%synergy
Snapcaster Mage
17%inclusion1 decks6 decks
15%synergy
Sheoldred, the Apocalypse
17%inclusion1 decks6 decks
8%synergy
Roaming Throne
17%inclusion1 decks6 decks
10%synergy
Inquisitive Glimmer
17%inclusion1 decks6 decks
9%synergy
Walking Ballista
17%inclusion1 decks6 decks
14%synergy
Demon of Fate's Design
17%inclusion1 decks6 decks
11%synergy
Fear of Impostors
17%inclusion1 decks6 decks
15%synergy
Heliod, Sun-Crowned
17%inclusion1 decks6 decks
13%synergy
Overlord of the Balemurk
17%inclusion1 decks6 decks
15%synergy
Barrowgoyf
17%inclusion1 decks6 decks
16%synergy
Gilded Drake
17%inclusion1 decks6 decks
15%synergy
Mesa Enchantress
17%inclusion1 decks6 decks
8%synergy
Pollywog Prodigy
17%inclusion1 decks6 decks
13%synergy
Talion, the Kindly Lord
17%inclusion1 decks6 decks
9%synergy
Golgari Thug
17%inclusion1 decks6 decks
17%synergy
Faerie Mastermind
17%inclusion1 decks6 decks
7%synergy
Grim Guardian
17%inclusion1 decks6 decks
14%synergy
Entity Tracker
17%inclusion1 decks6 decks
10%synergy
Stinkweed Imp
17%inclusion1 decks6 decks
17%synergy
Braids, Arisen Nightmare
17%inclusion1 decks6 decks
16%synergy
Kederekt Leviathan
17%inclusion1 decks6 decks
17%synergy
Dauthi Voidwalker
17%inclusion1 decks6 decks
11%synergy
Ghostly Pilferer
17%inclusion1 decks6 decks
9%synergy
Trinket Mage
17%inclusion1 decks6 decks
15%synergy
Instants
Force of Negation
67%inclusion4 decks6 decks
55%synergy
Borne Upon a Wind
67%inclusion4 decks6 decks
62%synergy
Mental Misstep
50%inclusion3 decks6 decks
43%synergy
An Offer You Can't Refuse
50%inclusion3 decks6 decks
23%synergy
Intuition
50%inclusion3 decks6 decks
48%synergy
Brain Freeze
50%inclusion3 decks6 decks
49%synergy
Gifts Ungiven
50%inclusion3 decks6 decks
48%synergy
Into the Flood Maw
50%inclusion3 decks6 decks
46%synergy
Swan Song
50%inclusion3 decks6 decks
30%synergy
Path to Exile
50%inclusion3 decks6 decks
8%synergy
Cyclonic Rift
50%inclusion3 decks6 decks
26%synergy
Mystical Tutor
50%inclusion3 decks6 decks
39%synergy
Muddle the Mixture
33%inclusion2 decks6 decks
30%synergy
Tainted Pact
33%inclusion2 decks6 decks
26%synergy
Chain of Vapor
33%inclusion2 decks6 decks
30%synergy
Retraction Helix
33%inclusion2 decks6 decks
33%synergy
Mindbreak Trap
33%inclusion2 decks6 decks
27%synergy
Mana Drain
33%inclusion2 decks6 decks
16%synergy
Demonic Consultation
33%inclusion2 decks6 decks
25%synergy
Fierce Guardianship
33%inclusion2 decks6 decks
13%synergy
Saw in Half
33%inclusion2 decks6 decks
31%synergy
Sacrifice
17%inclusion1 decks6 decks
16%synergy
Teferi's Protection
17%inclusion1 decks6 decks
0%synergy
Flare of Denial
17%inclusion1 decks6 decks
15%synergy
Culling the Weak
17%inclusion1 decks6 decks
15%synergy
Darkblast
17%inclusion1 decks6 decks
17%synergy
Angel's Grace
17%inclusion1 decks6 decks
14%synergy
Dispel
17%inclusion1 decks6 decks
13%synergy
Banishing Knack
17%inclusion1 decks6 decks
16%synergy
Strix Serenade
17%inclusion1 decks6 decks
13%synergy
Ad Nauseam
17%inclusion1 decks6 decks
14%synergy
Delay
17%inclusion1 decks6 decks
15%synergy
Sink into Stupor
17%inclusion1 decks6 decks
4%synergy
Narset's Reversal
17%inclusion1 decks6 decks
15%synergy
Pact of Negation
17%inclusion1 decks6 decks
9%synergy
Sorceries
Reanimate
67%inclusion4 decks6 decks
51%synergy
Windfall
33%inclusion2 decks6 decks
20%synergy
Lively Dirge
33%inclusion2 decks6 decks
32%synergy
Imperial Seal
33%inclusion2 decks6 decks
26%synergy
Toxic Deluge
33%inclusion2 decks6 decks
14%synergy
Beseech the Mirror
33%inclusion2 decks6 decks
29%synergy
Cabal Therapy
17%inclusion1 decks6 decks
17%synergy
Supreme Verdict
17%inclusion1 decks6 decks
2%synergy
Unmarked Grave
17%inclusion1 decks6 decks
15%synergy
Yawgmoth's Will
17%inclusion1 decks6 decks
15%synergy
Cut Your Losses
17%inclusion1 decks6 decks
16%synergy
Idyllic Tutor
17%inclusion1 decks6 decks
12%synergy
Buried Alive
17%inclusion1 decks6 decks
13%synergy
Mnemonic Betrayal
17%inclusion1 decks6 decks
14%synergy
Traumatize
17%inclusion1 decks6 decks
16%synergy
Grim Tutor
17%inclusion1 decks6 decks
12%synergy
Utility Artifacts
Mesmeric Orb
33%inclusion2 decks6 decks
32%synergy
Altar of the Brood
33%inclusion2 decks6 decks
32%synergy
Sensei's Divining Top
17%inclusion1 decks6 decks
7%synergy
Manifold Key
17%inclusion1 decks6 decks
16%synergy
Vexing Bauble
17%inclusion1 decks6 decks
15%synergy
Agatha's Soul Cauldron
17%inclusion1 decks6 decks
16%synergy
Enchantments
Dress Down
67%inclusion4 decks6 decks
64%synergy
The Meathook Massacre
50%inclusion3 decks6 decks
47%synergy
Dance of the Dead
50%inclusion3 decks6 decks
48%synergy
Touch the Spirit Realm
50%inclusion3 decks6 decks
48%synergy
Blind Obedience
50%inclusion3 decks6 decks
38%synergy
Amphibian Downpour
50%inclusion3 decks6 decks
45%synergy
Counterbalance
33%inclusion2 decks6 decks
32%synergy
Ripples of Undeath
33%inclusion2 decks6 decks
31%synergy
Mirrormade
33%inclusion2 decks6 decks
24%synergy
Copy Artifact
33%inclusion2 decks6 decks
32%synergy
Static Prison
33%inclusion2 decks6 decks
33%synergy
Chains of Mephistopheles
33%inclusion2 decks6 decks
33%synergy
Teval's Judgment
20%inclusion1 decks5 decks
19%synergy
Founding the Third Path
17%inclusion1 decks6 decks
16%synergy
Treacherous Blessing
17%inclusion1 decks6 decks
16%synergy
Court of Cunning
17%inclusion1 decks6 decks
16%synergy
Out of the Tombs
17%inclusion1 decks6 decks
16%synergy
Hopeless Nightmare
17%inclusion1 decks6 decks
16%synergy
Mind Over Matter
17%inclusion1 decks6 decks
16%synergy
Induced Amnesia
17%inclusion1 decks6 decks
17%synergy
Charitable Levy
17%inclusion1 decks6 decks
16%synergy
Starfield of Nyx
17%inclusion1 decks6 decks
13%synergy
Cemetery Tampering
17%inclusion1 decks6 decks
16%synergy
Leyline of Anticipation
17%inclusion1 decks6 decks
12%synergy
All That Glitters
17%inclusion1 decks6 decks
8%synergy
Bastion of Remembrance
17%inclusion1 decks6 decks
14%synergy
Hatching Plans
17%inclusion1 decks6 decks
16%synergy
Black Market Connections
17%inclusion1 decks6 decks
2%synergy
Land Tax
17%inclusion1 decks6 decks
11%synergy
Bloodchief Ascension
17%inclusion1 decks6 decks
11%synergy
Ghostly Prison
17%inclusion1 decks6 decks
-5%synergy
Propaganda
17%inclusion1 decks6 decks
-11%synergy
Phyrexian Arena
17%inclusion1 decks6 decks
3%synergy
Trouble in Pairs
17%inclusion1 decks6 decks
11%synergy
Standstill
17%inclusion1 decks6 decks
16%synergy
Planeswalkers
Teferi, Time Raveler
67%inclusion4 decks6 decks
58%synergy
Tezzeret, Cruel Captain
25%inclusion1 decks4 decks
23%synergy
Aminatou, the Fateshifter
17%inclusion1 decks6 decks
14%synergy
Kaito, Bane of Nightmares
17%inclusion1 decks6 decks
16%synergy
Utility Lands
Urza's Saga
50%inclusion3 decks6 decks
38%synergy
Otawara, Soaring City
50%inclusion3 decks6 decks
31%synergy
Emergence Zone
33%inclusion2 decks6 decks
31%synergy
Cephalid Coliseum
33%inclusion2 decks6 decks
30%synergy
Wasteland
17%inclusion1 decks6 decks
16%synergy
Minamo, School at Water's Edge
17%inclusion1 decks6 decks
13%synergy
Tyrite Sanctum
17%inclusion1 decks6 decks
16%synergy
Cathedral of War
17%inclusion1 decks6 decks
16%synergy
Strip Mine
17%inclusion1 decks6 decks
15%synergy
Urborg, Tomb of Yawgmoth
17%inclusion1 decks6 decks
4%synergy
Rogue's Passage
17%inclusion1 decks6 decks
7%synergy
Mana Artifacts
Sol Ring
100%inclusion6 decks6 decks
10%synergy
Arcane Signet
83%inclusion5 decks6 decks
-4%synergy
Lotus Petal
83%inclusion5 decks6 decks
73%synergy
Talisman of Dominance
83%inclusion5 decks6 decks
34%synergy
Talisman of Progress
67%inclusion4 decks6 decks
23%synergy
Fellwar Stone
50%inclusion3 decks6 decks
17%synergy
Talisman of Hierarchy
50%inclusion3 decks6 decks
6%synergy
Mox Opal
50%inclusion3 decks6 decks
41%synergy
Mox Diamond
50%inclusion3 decks6 decks
43%synergy
Grim Monolith
33%inclusion2 decks6 decks
30%synergy
Lion's Eye Diamond
33%inclusion2 decks6 decks
31%synergy
Everflowing Chalice
17%inclusion1 decks6 decks
15%synergy
Basalt Monolith
17%inclusion1 decks6 decks
14%synergy
Dimir Signet
17%inclusion1 decks6 decks
-15%synergy
Springleaf Drum
17%inclusion1 decks6 decks
15%synergy
Mind Stone
17%inclusion1 decks6 decks
4%synergy
Orzhov Signet
17%inclusion1 decks6 decks
-16%synergy
Azorius Signet
17%inclusion1 decks6 decks
-14%synergy
Lands
Tundra
100%inclusion6 decks6 decks
84%synergy
Command Tower
100%inclusion6 decks6 decks
7%synergy
Underground Sea
100%inclusion6 decks6 decks
84%synergy
Scrubland
100%inclusion6 decks6 decks
84%synergy
Marsh Flats
100%inclusion6 decks6 decks
64%synergy
Hallowed Fountain
100%inclusion6 decks6 decks
50%synergy
Watery Grave
100%inclusion6 decks6 decks
49%synergy
Verdant Catacombs
83%inclusion5 decks6 decks
73%synergy
Godless Shrine
83%inclusion5 decks6 decks
32%synergy
Island
83%inclusion5 decks6 decks
-10%synergy
Gemstone Caverns
83%inclusion5 decks6 decks
76%synergy
Polluted Delta
83%inclusion5 decks6 decks
46%synergy
City of Brass
83%inclusion5 decks6 decks
68%synergy
Flooded Strand
83%inclusion5 decks6 decks
45%synergy
Bloodstained Mire
83%inclusion5 decks6 decks
72%synergy
Swamp
67%inclusion4 decks6 decks
-25%synergy
Sea of Clouds
67%inclusion4 decks6 decks
31%synergy
Plains
67%inclusion4 decks6 decks
-25%synergy
Mana Confluence
67%inclusion4 decks6 decks
53%synergy
Undercity Sewers
50%inclusion3 decks6 decks
36%synergy
Misty Rainforest
50%inclusion3 decks6 decks
39%synergy
Exotic Orchard
50%inclusion3 decks6 decks
-9%synergy
Caves of Koilos
50%inclusion3 decks6 decks
14%synergy
Morphic Pool
50%inclusion3 decks6 decks
16%synergy
Arid Mesa
50%inclusion3 decks6 decks
40%synergy
Scalding Tarn
50%inclusion3 decks6 decks
39%synergy
Vault of Champions
50%inclusion3 decks6 decks
17%synergy
Bleachbone Verge
40%inclusion2 decks5 decks
31%synergy
Brightclimb Pathway
33%inclusion2 decks6 decks
27%synergy
Windswept Heath
33%inclusion2 decks6 decks
24%synergy
Raffine's Tower
33%inclusion2 decks6 decks
-8%synergy
Cavern of Souls
33%inclusion2 decks6 decks
27%synergy
Gloomlake Verge
33%inclusion2 decks6 decks
22%synergy
Floodfarm Verge
33%inclusion2 decks6 decks
22%synergy
Gemstone Mine
17%inclusion1 decks6 decks
16%synergy
Fabled Passage
17%inclusion1 decks6 decks
9%synergy
Clearwater Pathway
17%inclusion1 decks6 decks
10%synergy
Shadowy Backstreet
17%inclusion1 decks6 decks
4%synergy
Hengegate Pathway
17%inclusion1 decks6 decks
11%synergy
Snow-Covered Island
17%inclusion1 decks6 decks
14%synergy
Underground River
17%inclusion1 decks6 decks
-17%synergy
Snow-Covered Plains
17%inclusion1 decks6 decks
14%synergy
Sink into Stupor
17%inclusion1 decks6 decks
4%synergy
Meticulous Archive
17%inclusion1 decks6 decks
3%synergy
Adarkar Wastes
17%inclusion1 decks6 decks
-15%synergy
Snow-Covered Swamp
17%inclusion1 decks6 decks
14%synergy
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