The Master of Keys (Commander) - Optimized Enchantress

Background image for What if Thassa's Oracle Were Banned?
Harvey McGuinness
Sep 23, 2025
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.
Deck Filters
Cardsphere
Archidekt
Commander Spellbook
Moxfield
Scryfall
MTGStocks
Wan Shi Tong, Librarian
23%inclusion3 decks13 decks
18%synergy
Wan Shi Tong, All-Knowing
7.7%inclusion1 decks13 decks
8%synergy
Benevolent River Spirit
7.7%inclusion1 decks13 decks
8%synergy
Dutiful Knowledge Seeker
7.7%inclusion1 decks13 decks
8%synergy
Koh, the Face Stealer
7.7%inclusion1 decks13 decks
7%synergy
High Synergy Cards
Ripples of Undeath
79%inclusion41 decks52 decks
76%synergy
Animate Dead
77%inclusion40 decks52 decks
67%synergy
Necromancy
71%inclusion37 decks52 decks
67%synergy
Entity Tracker
69%inclusion36 decks52 decks
63%synergy
Mystic Remora
81%inclusion42 decks52 decks
59%synergy
Sevinne's Reclamation
65%inclusion34 decks52 decks
57%synergy
Abdel Adrian, Gorion's Ward
56%inclusion29 decks52 decks
54%synergy
Dress Down
56%inclusion29 decks52 decks
53%synergy
Inquisitive Glimmer
58%inclusion30 decks52 decks
50%synergy
Amphibian Downpour
52%inclusion27 decks52 decks
47%synergy
Top Cards
Blind Obedience
60%inclusion31 decks52 decks
47%synergy
Swords to Plowshares
58%inclusion30 decks52 decks
-11%synergy
Mirrormade
54%inclusion28 decks52 decks
44%synergy
Entomb
52%inclusion27 decks52 decks
45%synergy
Mesa Enchantress
52%inclusion27 decks52 decks
43%synergy
Dark Ritual
48%inclusion25 decks52 decks
29%synergy
An Offer You Can't Refuse
44%inclusion23 decks52 decks
18%synergy
Ghostly Prison
44%inclusion23 decks52 decks
23%synergy
Scrabbling Skullcrab
42%inclusion22 decks52 decks
41%synergy
Dance of the Dead
42%inclusion22 decks52 decks
40%synergy
Game Changers
Rhystic Study
71%inclusion37 decks52 decks
39%synergy
Smothering Tithe
65%inclusion34 decks52 decks
33%synergy
Enlightened Tutor
48%inclusion25 decks52 decks
28%synergy
Demonic Tutor
42%inclusion22 decks52 decks
21%synergy
Cyclonic Rift
33%inclusion17 decks52 decks
8%synergy
Vampiric Tutor
31%inclusion16 decks52 decks
13%synergy
Thassa's Oracle
29%inclusion15 decks52 decks
19%synergy
Necropotence
29%inclusion15 decks52 decks
22%synergy
Fierce Guardianship
29%inclusion15 decks52 decks
8%synergy
Ancient Tomb
25%inclusion13 decks52 decks
12%synergy
Creatures
Gravebreaker Lamia
42%inclusion22 decks52 decks
41%synergy
Demon of Fate's Design
42%inclusion22 decks52 decks
37%synergy
Fear of Impostors
42%inclusion22 decks52 decks
41%synergy
Starfield Mystic
40%inclusion21 decks52 decks
34%synergy
Overlord of the Floodpits
38%inclusion20 decks52 decks
35%synergy
Overlord of the Balemurk
37%inclusion19 decks52 decks
35%synergy
Fear of Sleep Paralysis
37%inclusion19 decks52 decks
31%synergy
Zur, Eternal Schemer
37%inclusion19 decks52 decks
33%synergy
Esper Sentinel
33%inclusion17 decks52 decks
5%synergy
Lotho, Corrupt Shirriff
31%inclusion16 decks52 decks
14%synergy
Ondu Spiritdancer
31%inclusion16 decks52 decks
25%synergy
Victor, Valgavoth's Seneschal
29%inclusion15 decks52 decks
27%synergy
Ledger Shredder
29%inclusion15 decks52 decks
20%synergy
Doomwake Giant
27%inclusion14 decks52 decks
21%synergy
Grim Guardian
27%inclusion14 decks52 decks
24%synergy
Zur the Enchanter
27%inclusion14 decks52 decks
22%synergy
Hullbreaker Horror
23%inclusion12 decks52 decks
17%synergy
Orcish Bowmasters
23%inclusion12 decks52 decks
12%synergy
Hedron Crab
21%inclusion11 decks52 decks
21%synergy
Grand Abolisher
21%inclusion11 decks52 decks
7%synergy
Displacer Kitten
19%inclusion10 decks52 decks
12%synergy
Lurrus of the Dream-Den
19%inclusion10 decks52 decks
18%synergy
Valley Floodcaller
19%inclusion10 decks52 decks
15%synergy
Moon-Blessed Cleric
19%inclusion10 decks52 decks
14%synergy
Soaring Lightbringer
15%inclusion8 decks52 decks
10%synergy
Silent Hallcreeper
15%inclusion8 decks52 decks
11%synergy
Enduring Curiosity
15%inclusion8 decks52 decks
8%synergy
Laboratory Maniac
15%inclusion8 decks52 decks
12%synergy
Mockingbird
15%inclusion8 decks52 decks
11%synergy
Heliod, the Radiant Dawn
15%inclusion8 decks52 decks
12%synergy
Psychic Frog
15%inclusion8 decks52 decks
9%synergy
Ghostly Pilferer
15%inclusion8 decks52 decks
8%synergy
Archon of Sun's Grace
13%inclusion7 decks52 decks
9%synergy
Leonin Relic-Warder
13%inclusion7 decks52 decks
13%synergy
Aminatou, Veil Piercer
13%inclusion7 decks52 decks
12%synergy
Ghostly Dancers
13%inclusion7 decks52 decks
11%synergy
Opposition Agent
12%inclusion6 decks52 decks
3%synergy
Sage of Mysteries
12%inclusion6 decks52 decks
11%synergy
Balemurk Leech
12%inclusion6 decks52 decks
11%synergy
Gremlin Tamer
12%inclusion6 decks52 decks
10%synergy
Mindwrack Harpy
12%inclusion6 decks52 decks
11%synergy
Phyrexian Metamorph
10%inclusion5 decks52 decks
1%synergy
Heliod, Sun-Crowned
10%inclusion5 decks52 decks
6%synergy
Talion, the Kindly Lord
10%inclusion5 decks52 decks
2%synergy
Solemn Simulacrum
7.7%inclusion4 decks52 decks
-7%synergy
Witch Enchanter
7.7%inclusion4 decks52 decks
1%synergy
Archivist of Oghma
7.7%inclusion4 decks52 decks
1%synergy
Hoarding Broodlord
7.7%inclusion4 decks52 decks
6%synergy
Grand Arbiter Augustin IV
7.7%inclusion4 decks52 decks
2%synergy
Walking Ballista
7.7%inclusion4 decks52 decks
5%synergy
Instants
Path to Exile
38%inclusion20 decks52 decks
-4%synergy
Swan Song
37%inclusion19 decks52 decks
17%synergy
Counterspell
33%inclusion17 decks52 decks
-9%synergy
Mana Drain
29%inclusion15 decks52 decks
11%synergy
Arcane Denial
27%inclusion14 decks52 decks
7%synergy
Gifts Ungiven
25%inclusion13 decks52 decks
23%synergy
Force of Will
25%inclusion13 decks52 decks
12%synergy
Dovin's Veto
23%inclusion12 decks52 decks
-2%synergy
Silence
21%inclusion11 decks52 decks
11%synergy
Force of Negation
21%inclusion11 decks52 decks
9%synergy
Flusterstorm
19%inclusion10 decks52 decks
11%synergy
Mystical Tutor
19%inclusion10 decks52 decks
8%synergy
Void Rend
17%inclusion9 decks52 decks
-16%synergy
Sink into Stupor
17%inclusion9 decks52 decks
5%synergy
Muddle the Mixture
13%inclusion7 decks52 decks
9%synergy
Teferi's Protection
13%inclusion7 decks52 decks
-3%synergy
Intuition
13%inclusion7 decks52 decks
12%synergy
Cabal Ritual
13%inclusion7 decks52 decks
10%synergy
Demonic Consultation
13%inclusion7 decks52 decks
5%synergy
Borne Upon a Wind
13%inclusion7 decks52 decks
9%synergy
Frantic Search
12%inclusion6 decks52 decks
-6%synergy
Tainted Pact
12%inclusion6 decks52 decks
4%synergy
Retraction Helix
12%inclusion6 decks52 decks
11%synergy
Brainstorm
12%inclusion6 decks52 decks
-6%synergy
Into the Flood Maw
12%inclusion6 decks52 decks
8%synergy
Negate
10%inclusion5 decks52 decks
-7%synergy
Delay
10%inclusion5 decks52 decks
7%synergy
Otherworldly Gaze
10%inclusion5 decks52 decks
7%synergy
Inkshield
10%inclusion5 decks52 decks
0%synergy
Deadly Rollick
7.7%inclusion4 decks52 decks
-6%synergy
Sacrifice
7.7%inclusion4 decks52 decks
7%synergy
Mental Misstep
7.7%inclusion4 decks52 decks
1%synergy
Brain Freeze
7.7%inclusion4 decks52 decks
7%synergy
Mindbreak Trap
7.7%inclusion4 decks52 decks
1%synergy
Banishing Knack
7.7%inclusion4 decks52 decks
7%synergy
Ad Nauseam
7.7%inclusion4 decks52 decks
5%synergy
Mana Leak
7.7%inclusion4 decks52 decks
6%synergy
Fell the Profane
5.8%inclusion3 decks52 decks
-3%synergy
Shred Memory
5.8%inclusion3 decks52 decks
5%synergy
Culling the Weak
5.8%inclusion3 decks52 decks
4%synergy
Winds of Rebuke
5.8%inclusion3 decks52 decks
6%synergy
Dispel
5.8%inclusion3 decks52 decks
2%synergy
Strix Serenade
5.8%inclusion3 decks52 decks
2%synergy
Stroke of Midnight
5.8%inclusion3 decks52 decks
-2%synergy
Get Out
5.8%inclusion3 decks52 decks
5%synergy
Utter End
5.8%inclusion3 decks52 decks
-1%synergy
Waterlogged Teachings
5.8%inclusion3 decks52 decks
1%synergy
Saw in Half
5.8%inclusion3 decks52 decks
4%synergy
Generous Gift
5.8%inclusion3 decks52 decks
-9%synergy
Sorceries
Windfall
38%inclusion20 decks52 decks
25%synergy
Reanimate
27%inclusion14 decks52 decks
11%synergy
Toxic Deluge
27%inclusion14 decks52 decks
7%synergy
Demonic Counsel
19%inclusion10 decks52 decks
18%synergy
Damn
15%inclusion8 decks52 decks
-5%synergy
Lively Dirge
13%inclusion7 decks52 decks
12%synergy
Redress Fate
13%inclusion7 decks52 decks
7%synergy
Supreme Verdict
12%inclusion6 decks52 decks
-3%synergy
Unmarked Grave
12%inclusion6 decks52 decks
10%synergy
Glimpse the Unthinkable
10%inclusion5 decks52 decks
9%synergy
Idyllic Tutor
10%inclusion5 decks52 decks
5%synergy
Extinguish All Hope
10%inclusion5 decks52 decks
8%synergy
Resurgent Belief
7.7%inclusion4 decks52 decks
6%synergy
Imperial Seal
7.7%inclusion4 decks52 decks
0%synergy
Buried Alive
7.7%inclusion4 decks52 decks
4%synergy
Dance of the Manse
7.7%inclusion4 decks52 decks
4%synergy
Ponder
5.8%inclusion3 decks52 decks
-3%synergy
Open the Vaults
5.8%inclusion3 decks52 decks
4%synergy
Yawgmoth's Will
5.8%inclusion3 decks52 decks
4%synergy
Time Wipe
5.8%inclusion3 decks52 decks
-1%synergy
Final Parting
5.8%inclusion3 decks52 decks
5%synergy
Beseech the Mirror
5.8%inclusion3 decks52 decks
2%synergy
Grim Tutor
5.8%inclusion3 decks52 decks
2%synergy
Utility Artifacts
The One Ring
23%inclusion12 decks52 decks
9%synergy
Mesmeric Orb
21%inclusion11 decks52 decks
20%synergy
Wishclaw Talisman
21%inclusion11 decks52 decks
13%synergy
Sensei's Divining Top
10%inclusion5 decks52 decks
0%synergy
Lightning Greaves
7.7%inclusion4 decks52 decks
-15%synergy
Enchantments
The Meathook Massacre
38%inclusion20 decks52 decks
35%synergy
Tinybones Joins Up
38%inclusion20 decks52 decks
37%synergy
Sphere of Safety
38%inclusion20 decks52 decks
29%synergy
Propaganda
38%inclusion20 decks52 decks
12%synergy
Touch the Spirit Realm
35%inclusion18 decks52 decks
32%synergy
Secret Arcade // Dusty Parlor
35%inclusion18 decks52 decks
29%synergy
Grasp of Fate
33%inclusion17 decks52 decks
27%synergy
Seal of Cleansing
31%inclusion16 decks52 decks
29%synergy
Static Prison
31%inclusion16 decks52 decks
30%synergy
Out of the Tombs
27%inclusion14 decks52 decks
26%synergy
Authority of the Consuls
27%inclusion14 decks52 decks
16%synergy
Cemetery Tampering
27%inclusion14 decks52 decks
26%synergy
Cacophony Unleashed
23%inclusion12 decks52 decks
21%synergy
Starfield of Nyx
23%inclusion12 decks52 decks
19%synergy
Land Tax
23%inclusion12 decks52 decks
17%synergy
Sigil of the Empty Throne
21%inclusion11 decks52 decks
15%synergy
Estrid's Invocation
21%inclusion11 decks52 decks
17%synergy
Greater Auramancy
21%inclusion11 decks52 decks
17%synergy
Darksteel Mutation
19%inclusion10 decks52 decks
13%synergy
Black Market Connections
19%inclusion10 decks52 decks
5%synergy
Trouble in Pairs
19%inclusion10 decks52 decks
14%synergy
Copy Enchantment
17%inclusion9 decks52 decks
13%synergy
Enchanted Evening
17%inclusion9 decks52 decks
16%synergy
Aura of Silence
17%inclusion9 decks52 decks
14%synergy
Monologue Tax
15%inclusion8 decks52 decks
9%synergy
Solitary Confinement
15%inclusion8 decks52 decks
13%synergy
Phyrexian Arena
15%inclusion8 decks52 decks
1%synergy
Court of Cunning
13%inclusion7 decks52 decks
12%synergy
The Tale of Tamiyo
13%inclusion7 decks52 decks
13%synergy
Leyline of Anticipation
13%inclusion7 decks52 decks
9%synergy
Oubliette
13%inclusion7 decks52 decks
12%synergy
Nowhere to Run
13%inclusion7 decks52 decks
12%synergy
Hallowed Haunting
13%inclusion7 decks52 decks
11%synergy
Founding the Third Path
12%inclusion6 decks52 decks
11%synergy
Imprisoned in the Moon
12%inclusion6 decks52 decks
5%synergy
Chronic Flooding
12%inclusion6 decks52 decks
11%synergy
Shark Typhoon
12%inclusion6 decks52 decks
6%synergy
Restricted Office // Lecture Hall
12%inclusion6 decks52 decks
9%synergy
Sheltered by Ghosts
12%inclusion6 decks52 decks
9%synergy
Ethereal Armor
12%inclusion6 decks52 decks
7%synergy
Seal of Removal
12%inclusion6 decks52 decks
11%synergy
Teval's Judgment
11%inclusion5 decks46 decks
10%synergy
Stillness in Motion
11%inclusion5 decks46 decks
10%synergy
Hopeless Nightmare
10%inclusion5 decks52 decks
9%synergy
Attunement
10%inclusion5 decks52 decks
9%synergy
Exquisite Blood
10%inclusion5 decks52 decks
3%synergy
Timely Ward
10%inclusion5 decks52 decks
5%synergy
Central Elevator // Promising Stairs
10%inclusion5 decks52 decks
9%synergy
All That Glitters
10%inclusion5 decks52 decks
1%synergy
Dazzling Theater // Prop Room
10%inclusion5 decks52 decks
8%synergy
Planeswalkers
Teferi, Time Raveler
19%inclusion10 decks52 decks
11%synergy
Ashiok, Dream Render
5.8%inclusion3 decks52 decks
4%synergy
Narset, Parter of Veils
5.8%inclusion3 decks52 decks
2%synergy
Utility Lands
Hall of Heliod's Generosity
42%inclusion22 decks52 decks
29%synergy
Bojuka Bog
37%inclusion19 decks52 decks
9%synergy
Otawara, Soaring City
37%inclusion19 decks52 decks
17%synergy
Cephalid Coliseum
25%inclusion13 decks52 decks
21%synergy
Serra's Sanctum
17%inclusion9 decks52 decks
16%synergy
Urza's Saga
15%inclusion8 decks52 decks
3%synergy
Takenuma, Abandoned Mire
15%inclusion8 decks52 decks
9%synergy
Emergence Zone
13%inclusion7 decks52 decks
11%synergy
Urborg, Tomb of Yawgmoth
12%inclusion6 decks52 decks
-2%synergy
Adagia, Windswept Bastion
6.7%inclusion2 decks30 decks
4%synergy
Halimar Depths
5.8%inclusion3 decks52 decks
1%synergy
Volrath's Stronghold
5.8%inclusion3 decks52 decks
5%synergy
Eiganjo, Seat of the Empire
5.8%inclusion3 decks52 decks
1%synergy
Temple of the False God
5.8%inclusion3 decks52 decks
-2%synergy
Rogue's Passage
5.8%inclusion3 decks52 decks
-4%synergy
Mana Artifacts
Sol Ring
94%inclusion49 decks52 decks
4%synergy
Arcane Signet
85%inclusion44 decks52 decks
-3%synergy
Talisman of Dominance
65%inclusion34 decks52 decks
16%synergy
Talisman of Progress
62%inclusion32 decks52 decks
19%synergy
Talisman of Hierarchy
60%inclusion31 decks52 decks
16%synergy
Fellwar Stone
35%inclusion18 decks52 decks
1%synergy
Azorius Signet
29%inclusion15 decks52 decks
-4%synergy
Orzhov Signet
25%inclusion13 decks52 decks
-9%synergy
Lotus Petal
19%inclusion10 decks52 decks
8%synergy
Dimir Signet
19%inclusion10 decks52 decks
-13%synergy
Mana Vault
17%inclusion9 decks52 decks
8%synergy
Chrome Mox
17%inclusion9 decks52 decks
8%synergy
Mind Stone
13%inclusion7 decks52 decks
0%synergy
Commander's Sphere
10%inclusion5 decks52 decks
-10%synergy
Lion's Eye Diamond
10%inclusion5 decks52 decks
7%synergy
Mox Amber
7.7%inclusion4 decks52 decks
2%synergy
Mox Opal
7.7%inclusion4 decks52 decks
-1%synergy
Mox Diamond
7.7%inclusion4 decks52 decks
0%synergy
Hourglass of the Lost
5.8%inclusion3 decks52 decks
5%synergy
Lands
Command Tower
96%inclusion50 decks52 decks
4%synergy
Island
96%inclusion50 decks52 decks
4%synergy
Swamp
94%inclusion49 decks52 decks
3%synergy
Plains
94%inclusion49 decks52 decks
3%synergy
Godless Shrine
63%inclusion33 decks52 decks
13%synergy
Watery Grave
63%inclusion33 decks52 decks
14%synergy
Hallowed Fountain
62%inclusion32 decks52 decks
13%synergy
Polluted Delta
56%inclusion29 decks52 decks
19%synergy
Caves of Koilos
54%inclusion28 decks52 decks
19%synergy
Flooded Strand
54%inclusion28 decks52 decks
16%synergy
Marsh Flats
52%inclusion27 decks52 decks
16%synergy
Adarkar Wastes
50%inclusion26 decks52 decks
19%synergy
Underground River
48%inclusion25 decks52 decks
15%synergy
Exotic Orchard
46%inclusion24 decks52 decks
-12%synergy
Sea of Clouds
42%inclusion22 decks52 decks
7%synergy
Glacial Fortress
40%inclusion21 decks52 decks
1%synergy
Raffine's Tower
40%inclusion21 decks52 decks
-1%synergy
Morphic Pool
38%inclusion20 decks52 decks
4%synergy
Vault of Champions
38%inclusion20 decks52 decks
6%synergy
Undercity Sewers
35%inclusion18 decks52 decks
21%synergy
Arcane Sanctum
35%inclusion18 decks52 decks
-20%synergy
Meticulous Archive
35%inclusion18 decks52 decks
21%synergy
Shadowy Backstreet
33%inclusion17 decks52 decks
20%synergy
Isolated Chapel
33%inclusion17 decks52 decks
-6%synergy
Drowned Catacomb
31%inclusion16 decks52 decks
-5%synergy
Prairie Stream
27%inclusion14 decks52 decks
-14%synergy
Temple of Deceit
25%inclusion13 decks52 decks
7%synergy
Valgavoth's Lair
23%inclusion12 decks52 decks
20%synergy
Temple of Enlightenment
23%inclusion12 decks52 decks
6%synergy
Temple of Silence
23%inclusion12 decks52 decks
3%synergy
Gloomlake Verge
21%inclusion11 decks52 decks
10%synergy
City of Brass
21%inclusion11 decks52 decks
6%synergy
Bloodstained Mire
21%inclusion11 decks52 decks
10%synergy
Tainted Isle
19%inclusion10 decks52 decks
13%synergy
Windswept Heath
19%inclusion10 decks52 decks
9%synergy
Tainted Field
19%inclusion10 decks52 decks
12%synergy
Verdant Catacombs
19%inclusion10 decks52 decks
9%synergy
Sunken Hollow
19%inclusion10 decks52 decks
-20%synergy
Tundra
17%inclusion9 decks52 decks
1%synergy
Misty Rainforest
17%inclusion9 decks52 decks
6%synergy
Azorius Chancery
17%inclusion9 decks52 decks
3%synergy
Underground Sea
17%inclusion9 decks52 decks
2%synergy
Sink into Stupor
17%inclusion9 decks52 decks
5%synergy
Scrubland
17%inclusion9 decks52 decks
1%synergy
Mana Confluence
17%inclusion9 decks52 decks
3%synergy
Obscura Storefront
17%inclusion9 decks52 decks
7%synergy
Clearwater Pathway
15%inclusion8 decks52 decks
9%synergy
Brightclimb Pathway
15%inclusion8 decks52 decks
8%synergy
Dimir Aqueduct
15%inclusion8 decks52 decks
1%synergy
Orzhov Basilica
15%inclusion8 decks52 decks
-1%synergy