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
Moonshadow
5.6%inclusion1 decks18 decks
5%synergy
Winnowing
5.0%inclusion1 decks20 decks
4%synergy
High Synergy Cards
Ripples of Undeath
75%inclusion46 decks61 decks
73%synergy
Animate Dead
74%inclusion45 decks61 decks
64%synergy
Necromancy
64%inclusion39 decks61 decks
59%synergy
Entity Tracker
66%inclusion40 decks61 decks
59%synergy
Mystic Remora
75%inclusion46 decks61 decks
55%synergy
Inquisitive Glimmer
61%inclusion37 decks61 decks
53%synergy
Dress Down
54%inclusion33 decks61 decks
52%synergy
Abdel Adrian, Gorion's Ward
49%inclusion30 decks61 decks
47%synergy
Sevinne's Reclamation
56%inclusion34 decks61 decks
47%synergy
Entomb
52%inclusion32 decks61 decks
46%synergy
Top Cards
Swords to Plowshares
59%inclusion36 decks61 decks
-9%synergy
Mesa Enchantress
54%inclusion33 decks61 decks
45%synergy
Mirrormade
51%inclusion31 decks61 decks
41%synergy
Blind Obedience
49%inclusion30 decks61 decks
37%synergy
Demon of Fate's Design
48%inclusion29 decks61 decks
42%synergy
Scrabbling Skullcrab
46%inclusion28 decks61 decks
45%synergy
Starfield Mystic
46%inclusion28 decks61 decks
39%synergy
Sphere of Safety
44%inclusion27 decks61 decks
35%synergy
Overlord of the Balemurk
44%inclusion27 decks61 decks
42%synergy
Fear of Impostors
43%inclusion26 decks61 decks
41%synergy
Game Changers
Rhystic Study
62%inclusion38 decks61 decks
31%synergy
Smothering Tithe
61%inclusion37 decks61 decks
30%synergy
Enlightened Tutor
43%inclusion26 decks61 decks
23%synergy
Demonic Tutor
38%inclusion23 decks61 decks
17%synergy
Necropotence
34%inclusion21 decks61 decks
28%synergy
Thassa's Oracle
30%inclusion18 decks61 decks
20%synergy
Cyclonic Rift
30%inclusion18 decks61 decks
6%synergy
Fierce Guardianship
28%inclusion17 decks61 decks
7%synergy
Vampiric Tutor
28%inclusion17 decks61 decks
11%synergy
Ancient Tomb
21%inclusion13 decks61 decks
9%synergy
Creatures
Gravebreaker Lamia
41%inclusion25 decks61 decks
40%synergy
Overlord of the Floodpits
41%inclusion25 decks61 decks
37%synergy
Fear of Sleep Paralysis
41%inclusion25 decks61 decks
36%synergy
Zur, Eternal Schemer
38%inclusion23 decks61 decks
34%synergy
Lotho, Corrupt Shirriff
34%inclusion21 decks61 decks
18%synergy
Ondu Spiritdancer
34%inclusion21 decks61 decks
28%synergy
Doomwake Giant
31%inclusion19 decks61 decks
25%synergy
Esper Sentinel
31%inclusion19 decks61 decks
4%synergy
Victor, Valgavoth's Seneschal
30%inclusion18 decks61 decks
28%synergy
Ledger Shredder
26%inclusion16 decks61 decks
17%synergy
Grim Guardian
25%inclusion15 decks61 decks
22%synergy
Zur the Enchanter
25%inclusion15 decks61 decks
19%synergy
Hullbreaker Horror
23%inclusion14 decks61 decks
17%synergy
Moon-Blessed Cleric
21%inclusion13 decks61 decks
17%synergy
Ghostly Dancers
21%inclusion13 decks61 decks
19%synergy
Valley Floodcaller
20%inclusion12 decks61 decks
16%synergy
Lurrus of the Dream-Den
20%inclusion12 decks61 decks
18%synergy
Silent Hallcreeper
20%inclusion12 decks61 decks
15%synergy
Orcish Bowmasters
20%inclusion12 decks61 decks
9%synergy
Displacer Kitten
18%inclusion11 decks61 decks
11%synergy
Enduring Curiosity
18%inclusion11 decks61 decks
10%synergy
Aminatou, Veil Piercer
18%inclusion11 decks61 decks
17%synergy
Soaring Lightbringer
18%inclusion11 decks61 decks
13%synergy
Hedron Crab
18%inclusion11 decks61 decks
17%synergy
Grand Abolisher
18%inclusion11 decks61 decks
4%synergy
Laboratory Maniac
16%inclusion10 decks61 decks
13%synergy
Heliod, the Radiant Dawn
16%inclusion10 decks61 decks
13%synergy
Leonin Relic-Warder
15%inclusion9 decks61 decks
15%synergy
Ghostly Pilferer
15%inclusion9 decks61 decks
7%synergy
Gremlin Tamer
15%inclusion9 decks61 decks
14%synergy
Psychic Frog
15%inclusion9 decks61 decks
8%synergy
Overlord of the Mistmoors
13%inclusion8 decks61 decks
11%synergy
Archon of Sun's Grace
13%inclusion8 decks61 decks
9%synergy
Sage of Mysteries
13%inclusion8 decks61 decks
13%synergy
Mockingbird
13%inclusion8 decks61 decks
9%synergy
Wan Shi Tong, Librarian
12%inclusion3 decks25 decks
7%synergy
Talion, the Kindly Lord
11%inclusion7 decks61 decks
4%synergy
Solemn Simulacrum
10%inclusion6 decks61 decks
-4%synergy
Opposition Agent
10%inclusion6 decks61 decks
1%synergy
Ancient Cellarspawn
10%inclusion6 decks61 decks
7%synergy
Mindwrack Harpy
10%inclusion6 decks61 decks
10%synergy
Witch Enchanter
8.2%inclusion5 decks61 decks
1%synergy
Archivist of Oghma
8.2%inclusion5 decks61 decks
2%synergy
Hoarding Broodlord
8.2%inclusion5 decks61 decks
6%synergy
Phyrexian Metamorph
8.2%inclusion5 decks61 decks
0%synergy
Athreos, Shroud-Veiled
8.2%inclusion5 decks61 decks
4%synergy
Archetype of Imagination
8.2%inclusion5 decks61 decks
3%synergy
Heliod, Sun-Crowned
8.2%inclusion5 decks61 decks
4%synergy
Enduring Tenacity
8.2%inclusion5 decks61 decks
1%synergy
Spirited Companion
8.2%inclusion5 decks61 decks
6%synergy
Instants
An Offer You Can't Refuse
41%inclusion25 decks61 decks
14%synergy
Dark Ritual
39%inclusion24 decks61 decks
20%synergy
Path to Exile
36%inclusion22 decks61 decks
-6%synergy
Counterspell
34%inclusion21 decks61 decks
-7%synergy
Swan Song
33%inclusion20 decks61 decks
13%synergy
Mana Drain
30%inclusion18 decks61 decks
12%synergy
Dovin's Veto
25%inclusion15 decks61 decks
-1%synergy
Arcane Denial
25%inclusion15 decks61 decks
4%synergy
Force of Will
21%inclusion13 decks61 decks
9%synergy
Gifts Ungiven
20%inclusion12 decks61 decks
17%synergy
Silence
20%inclusion12 decks61 decks
10%synergy
Void Rend
18%inclusion11 decks61 decks
-16%synergy
Flusterstorm
18%inclusion11 decks61 decks
10%synergy
Force of Negation
18%inclusion11 decks61 decks
6%synergy
Sink into Stupor
16%inclusion10 decks61 decks
4%synergy
Mystical Tutor
16%inclusion10 decks61 decks
5%synergy
Frantic Search
15%inclusion9 decks61 decks
-3%synergy
Teferi's Protection
13%inclusion8 decks61 decks
-3%synergy
Cabal Ritual
13%inclusion8 decks61 decks
10%synergy
Borne Upon a Wind
13%inclusion8 decks61 decks
8%synergy
Demonic Consultation
13%inclusion8 decks61 decks
5%synergy
Muddle the Mixture
11%inclusion7 decks61 decks
8%synergy
Brainstorm
11%inclusion7 decks61 decks
-6%synergy
Intuition
11%inclusion7 decks61 decks
10%synergy
Tainted Pact
10%inclusion6 decks61 decks
3%synergy
Into the Flood Maw
10%inclusion6 decks61 decks
6%synergy
Get Out
10%inclusion6 decks61 decks
9%synergy
Mental Misstep
8.2%inclusion5 decks61 decks
2%synergy
Brain Freeze
8.2%inclusion5 decks61 decks
8%synergy
Retraction Helix
8.2%inclusion5 decks61 decks
7%synergy
Negate
8.2%inclusion5 decks61 decks
-8%synergy
Utter End
8.2%inclusion5 decks61 decks
2%synergy
Inkshield
8.2%inclusion5 decks61 decks
-1%synergy
Otherworldly Gaze
8.2%inclusion5 decks61 decks
6%synergy
Deadly Rollick
6.6%inclusion4 decks61 decks
-8%synergy
Fell the Profane
6.6%inclusion4 decks61 decks
-2%synergy
Sacrifice
6.6%inclusion4 decks61 decks
6%synergy
Consider
6.6%inclusion4 decks61 decks
4%synergy
Thirst for Meaning
6.6%inclusion4 decks61 decks
5%synergy
Ad Nauseam
6.6%inclusion4 decks61 decks
4%synergy
Saw in Half
6.6%inclusion4 decks61 decks
5%synergy
Sorceries
Windfall
33%inclusion20 decks61 decks
19%synergy
Reanimate
30%inclusion18 decks61 decks
13%synergy
Toxic Deluge
23%inclusion14 decks61 decks
3%synergy
Redress Fate
20%inclusion12 decks61 decks
14%synergy
Damn
18%inclusion11 decks61 decks
-2%synergy
Demonic Counsel
15%inclusion9 decks61 decks
14%synergy
Lively Dirge
11%inclusion7 decks61 decks
10%synergy
Supreme Verdict
10%inclusion6 decks61 decks
-5%synergy
Unmarked Grave
10%inclusion6 decks61 decks
8%synergy
Glimpse the Unthinkable
10%inclusion6 decks61 decks
9%synergy
Extinguish All Hope
10%inclusion6 decks61 decks
8%synergy
Ponder
8.2%inclusion5 decks61 decks
-1%synergy
Time Wipe
8.2%inclusion5 decks61 decks
2%synergy
Idyllic Tutor
8.2%inclusion5 decks61 decks
4%synergy
Dance of the Manse
8.2%inclusion5 decks61 decks
5%synergy
Resurgent Belief
6.6%inclusion4 decks61 decks
4%synergy
Grim Tutor
6.6%inclusion4 decks61 decks
2%synergy
Buried Alive
6.6%inclusion4 decks61 decks
2%synergy
Singularity Rupture
5.0%inclusion2 decks40 decks
3%synergy
Utility Artifacts
Mesmeric Orb
21%inclusion13 decks61 decks
20%synergy
The One Ring
21%inclusion13 decks61 decks
8%synergy
Wishclaw Talisman
20%inclusion12 decks61 decks
12%synergy
Lightning Greaves
10%inclusion6 decks61 decks
-13%synergy
Sensei's Divining Top
8.2%inclusion5 decks61 decks
-1%synergy
Keys to the House
8.2%inclusion5 decks61 decks
8%synergy
Enchantments
Dance of the Dead
41%inclusion25 decks61 decks
39%synergy
Amphibian Downpour
41%inclusion25 decks61 decks
36%synergy
Secret Arcade // Dusty Parlor
39%inclusion24 decks61 decks
35%synergy
Ghostly Prison
39%inclusion24 decks61 decks
17%synergy
Grasp of Fate
36%inclusion22 decks61 decks
30%synergy
The Meathook Massacre
34%inclusion21 decks61 decks
31%synergy
Tinybones Joins Up
34%inclusion21 decks61 decks
33%synergy
Propaganda
34%inclusion21 decks61 decks
7%synergy
Touch the Spirit Realm
30%inclusion18 decks61 decks
27%synergy
Cemetery Tampering
30%inclusion18 decks61 decks
29%synergy
Seal of Cleansing
30%inclusion18 decks61 decks
28%synergy
Out of the Tombs
25%inclusion15 decks61 decks
24%synergy
Static Prison
23%inclusion14 decks61 decks
22%synergy
Cacophony Unleashed
21%inclusion13 decks61 decks
20%synergy
Starfield of Nyx
21%inclusion13 decks61 decks
17%synergy
Darksteel Mutation
20%inclusion12 decks61 decks
14%synergy
Authority of the Consuls
20%inclusion12 decks61 decks
7%synergy
Sigil of the Empty Throne
18%inclusion11 decks61 decks
12%synergy
Enchanted Evening
18%inclusion11 decks61 decks
16%synergy
Black Market Connections
18%inclusion11 decks61 decks
4%synergy
Land Tax
18%inclusion11 decks61 decks
12%synergy
Monologue Tax
16%inclusion10 decks61 decks
10%synergy
Estrid's Invocation
16%inclusion10 decks61 decks
12%synergy
Copy Enchantment
16%inclusion10 decks61 decks
12%synergy
Central Elevator // Promising Stairs
16%inclusion10 decks61 decks
16%synergy
Greater Auramancy
16%inclusion10 decks61 decks
12%synergy
Trouble in Pairs
16%inclusion10 decks61 decks
11%synergy
Court of Cunning
15%inclusion9 decks61 decks
14%synergy
Aura of Silence
15%inclusion9 decks61 decks
12%synergy
Restricted Office // Lecture Hall
15%inclusion9 decks61 decks
13%synergy
Sheltered by Ghosts
15%inclusion9 decks61 decks
12%synergy
Ethereal Armor
15%inclusion9 decks61 decks
10%synergy
Funeral Room // Awakening Hall
13%inclusion8 decks61 decks
12%synergy
Hallowed Haunting
13%inclusion8 decks61 decks
11%synergy
All That Glitters
13%inclusion8 decks61 decks
4%synergy
Dazzling Theater // Prop Room
13%inclusion8 decks61 decks
12%synergy
Solitary Confinement
13%inclusion8 decks61 decks
11%synergy
Nowhere to Run
13%inclusion8 decks61 decks
12%synergy
Mirror Room // Fractured Realm
13%inclusion8 decks61 decks
11%synergy
Stillness in Motion
13%inclusion7 decks56 decks
12%synergy
Timely Ward
11%inclusion7 decks61 decks
6%synergy
Phyrexian Arena
11%inclusion7 decks61 decks
-3%synergy
Defiled Crypt // Cadaver Lab
11%inclusion7 decks61 decks
11%synergy
The Tale of Tamiyo
11%inclusion7 decks61 decks
11%synergy
Leyline of Anticipation
11%inclusion7 decks61 decks
7%synergy
Oubliette
11%inclusion7 decks61 decks
10%synergy
Imprisoned in the Moon
10%inclusion6 decks61 decks
3%synergy
Chronic Flooding
10%inclusion6 decks61 decks
10%synergy
Surgical Suite // Hospital Room
10%inclusion6 decks61 decks
9%synergy
Bottomless Pool // Locker Room
10%inclusion6 decks61 decks
8%synergy
Planeswalkers
Teferi, Time Raveler
20%inclusion12 decks61 decks
11%synergy
Utility Lands
Hall of Heliod's Generosity
48%inclusion29 decks61 decks
34%synergy
Bojuka Bog
33%inclusion20 decks61 decks
6%synergy
Otawara, Soaring City
31%inclusion19 decks61 decks
12%synergy
Cephalid Coliseum
21%inclusion13 decks61 decks
18%synergy
Serra's Sanctum
16%inclusion10 decks61 decks
15%synergy
Urza's Saga
15%inclusion9 decks61 decks
3%synergy
Takenuma, Abandoned Mire
15%inclusion9 decks61 decks
8%synergy
Emergence Zone
11%inclusion7 decks61 decks
9%synergy
Urborg, Tomb of Yawgmoth
10%inclusion6 decks61 decks
-3%synergy
Halimar Depths
8.2%inclusion5 decks61 decks
4%synergy
Mistrise Village
5.4%inclusion3 decks56 decks
2%synergy
Adagia, Windswept Bastion
5.0%inclusion2 decks40 decks
3%synergy
Mana Artifacts
Sol Ring
93%inclusion57 decks61 decks
4%synergy
Arcane Signet
84%inclusion51 decks61 decks
-4%synergy
Talisman of Dominance
59%inclusion36 decks61 decks
9%synergy
Talisman of Progress
57%inclusion35 decks61 decks
14%synergy
Talisman of Hierarchy
57%inclusion35 decks61 decks
13%synergy
Azorius Signet
36%inclusion22 decks61 decks
5%synergy
Fellwar Stone
34%inclusion21 decks61 decks
1%synergy
Orzhov Signet
33%inclusion20 decks61 decks
0%synergy
Dimir Signet
25%inclusion15 decks61 decks
-7%synergy
Lotus Petal
20%inclusion12 decks61 decks
9%synergy
Mana Vault
18%inclusion11 decks61 decks
9%synergy
Chrome Mox
18%inclusion11 decks61 decks
9%synergy
Commander's Sphere
11%inclusion7 decks61 decks
-7%synergy
Mind Stone
11%inclusion7 decks61 decks
-1%synergy
Mox Opal
10%inclusion6 decks61 decks
1%synergy
Lion's Eye Diamond
8.2%inclusion5 decks61 decks
6%synergy
Mox Amber
8.2%inclusion5 decks61 decks
2%synergy
Mox Diamond
6.6%inclusion4 decks61 decks
0%synergy
Lands
Island
97%inclusion59 decks61 decks
4%synergy
Swamp
95%inclusion58 decks61 decks
4%synergy
Plains
95%inclusion58 decks61 decks
3%synergy
Command Tower
93%inclusion57 decks61 decks
1%synergy
Hallowed Fountain
64%inclusion39 decks61 decks
14%synergy
Watery Grave
64%inclusion39 decks61 decks
13%synergy
Godless Shrine
62%inclusion38 decks61 decks
11%synergy
Caves of Koilos
57%inclusion35 decks61 decks
22%synergy
Polluted Delta
56%inclusion34 decks61 decks
18%synergy
Flooded Strand
56%inclusion34 decks61 decks
18%synergy
Marsh Flats
52%inclusion32 decks61 decks
16%synergy
Adarkar Wastes
49%inclusion30 decks61 decks
18%synergy
Exotic Orchard
48%inclusion29 decks61 decks
-11%synergy
Underground River
48%inclusion29 decks61 decks
14%synergy
Glacial Fortress
41%inclusion25 decks61 decks
-1%synergy
Sea of Clouds
41%inclusion25 decks61 decks
6%synergy
Arcane Sanctum
39%inclusion24 decks61 decks
-15%synergy
Raffine's Tower
39%inclusion24 decks61 decks
-2%synergy
Morphic Pool
38%inclusion23 decks61 decks
4%synergy
Vault of Champions
38%inclusion23 decks61 decks
5%synergy
Undercity Sewers
36%inclusion22 decks61 decks
22%synergy
Meticulous Archive
36%inclusion22 decks61 decks
22%synergy
Shadowy Backstreet
34%inclusion21 decks61 decks
22%synergy
Isolated Chapel
33%inclusion20 decks61 decks
-8%synergy
Valgavoth's Lair
30%inclusion18 decks61 decks
27%synergy
Drowned Catacomb
28%inclusion17 decks61 decks
-9%synergy
Temple of Deceit
26%inclusion16 decks61 decks
9%synergy
Prairie Stream
26%inclusion16 decks61 decks
-14%synergy
Temple of Enlightenment
25%inclusion15 decks61 decks
8%synergy
Temple of Silence
25%inclusion15 decks61 decks
6%synergy
Gloomlake Verge
25%inclusion15 decks61 decks
14%synergy
Tainted Isle
23%inclusion14 decks61 decks
17%synergy
Tainted Field
21%inclusion13 decks61 decks
14%synergy
Floodfarm Verge
21%inclusion13 decks61 decks
10%synergy
Azorius Chancery
20%inclusion12 decks61 decks
6%synergy
Dimir Aqueduct
20%inclusion12 decks61 decks
6%synergy
Orzhov Basilica
20%inclusion12 decks61 decks
4%synergy
Obscura Storefront
20%inclusion12 decks61 decks
10%synergy
City of Brass
20%inclusion12 decks61 decks
5%synergy
Bloodstained Mire
20%inclusion12 decks61 decks
9%synergy
Verdant Catacombs
18%inclusion11 decks61 decks
8%synergy
Sunken Hollow
18%inclusion11 decks61 decks
-22%synergy
Tundra
16%inclusion10 decks61 decks
0%synergy
Windswept Heath
16%inclusion10 decks61 decks
7%synergy
Underground Sea
16%inclusion10 decks61 decks
1%synergy
Sink into Stupor
16%inclusion10 decks61 decks
4%synergy
Shattered Sanctum
16%inclusion10 decks61 decks
0%synergy
Shipwreck Marsh
16%inclusion10 decks61 decks
-4%synergy
Scrubland
16%inclusion10 decks61 decks
0%synergy
Deserted Beach
16%inclusion10 decks61 decks
-4%synergy