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
5.9%inclusion1 decks17 decks
6%synergy
Winnowing
5.3%inclusion1 decks19 decks
4%synergy
High Synergy Cards
Ripples of Undeath
75%inclusion45 decks60 decks
72%synergy
Animate Dead
73%inclusion44 decks60 decks
64%synergy
Entity Tracker
65%inclusion39 decks60 decks
59%synergy
Necromancy
63%inclusion38 decks60 decks
59%synergy
Mystic Remora
75%inclusion45 decks60 decks
54%synergy
Inquisitive Glimmer
60%inclusion36 decks60 decks
53%synergy
Dress Down
53%inclusion32 decks60 decks
51%synergy
Sevinne's Reclamation
58%inclusion35 decks60 decks
49%synergy
Abdel Adrian, Gorion's Ward
50%inclusion30 decks60 decks
48%synergy
Entomb
53%inclusion32 decks60 decks
47%synergy
Top Cards
Swords to Plowshares
58%inclusion35 decks60 decks
-10%synergy
Mesa Enchantress
53%inclusion32 decks60 decks
44%synergy
Blind Obedience
50%inclusion30 decks60 decks
38%synergy
Mirrormade
50%inclusion30 decks60 decks
40%synergy
Demon of Fate's Design
47%inclusion28 decks60 decks
41%synergy
Scrabbling Skullcrab
45%inclusion27 decks60 decks
44%synergy
Starfield Mystic
45%inclusion27 decks60 decks
38%synergy
Dance of the Dead
42%inclusion25 decks60 decks
39%synergy
An Offer You Can't Refuse
42%inclusion25 decks60 decks
14%synergy
Fear of Impostors
42%inclusion25 decks60 decks
40%synergy
Game Changers
Rhystic Study
65%inclusion39 decks60 decks
34%synergy
Smothering Tithe
60%inclusion36 decks60 decks
29%synergy
Enlightened Tutor
43%inclusion26 decks60 decks
24%synergy
Demonic Tutor
38%inclusion23 decks60 decks
18%synergy
Necropotence
33%inclusion20 decks60 decks
27%synergy
Thassa's Oracle
30%inclusion18 decks60 decks
21%synergy
Cyclonic Rift
30%inclusion18 decks60 decks
6%synergy
Fierce Guardianship
28%inclusion17 decks60 decks
8%synergy
Vampiric Tutor
28%inclusion17 decks60 decks
11%synergy
Ancient Tomb
22%inclusion13 decks60 decks
9%synergy
Creatures
Fear of Sleep Paralysis
42%inclusion25 decks60 decks
36%synergy
Gravebreaker Lamia
40%inclusion24 decks60 decks
39%synergy
Overlord of the Balemurk
40%inclusion24 decks60 decks
38%synergy
Overlord of the Floodpits
38%inclusion23 decks60 decks
35%synergy
Zur, Eternal Schemer
37%inclusion22 decks60 decks
33%synergy
Lotho, Corrupt Shirriff
35%inclusion21 decks60 decks
18%synergy
Ondu Spiritdancer
33%inclusion20 decks60 decks
27%synergy
Esper Sentinel
32%inclusion19 decks60 decks
4%synergy
Doomwake Giant
30%inclusion18 decks60 decks
24%synergy
Victor, Valgavoth's Seneschal
28%inclusion17 decks60 decks
26%synergy
Zur the Enchanter
27%inclusion16 decks60 decks
21%synergy
Grim Guardian
25%inclusion15 decks60 decks
22%synergy
Ledger Shredder
25%inclusion15 decks60 decks
16%synergy
Hullbreaker Horror
23%inclusion14 decks60 decks
17%synergy
Moon-Blessed Cleric
22%inclusion13 decks60 decks
17%synergy
Ghostly Dancers
22%inclusion13 decks60 decks
19%synergy
Valley Floodcaller
20%inclusion12 decks60 decks
16%synergy
Aminatou, Veil Piercer
20%inclusion12 decks60 decks
19%synergy
Orcish Bowmasters
20%inclusion12 decks60 decks
9%synergy
Displacer Kitten
18%inclusion11 decks60 decks
11%synergy
Lurrus of the Dream-Den
18%inclusion11 decks60 decks
17%synergy
Soaring Lightbringer
18%inclusion11 decks60 decks
14%synergy
Hedron Crab
18%inclusion11 decks60 decks
18%synergy
Enduring Curiosity
18%inclusion11 decks60 decks
10%synergy
Grand Abolisher
18%inclusion11 decks60 decks
4%synergy
Silent Hallcreeper
17%inclusion10 decks60 decks
12%synergy
Laboratory Maniac
17%inclusion10 decks60 decks
13%synergy
Heliod, the Radiant Dawn
17%inclusion10 decks60 decks
13%synergy
Archon of Sun's Grace
15%inclusion9 decks60 decks
10%synergy
Leonin Relic-Warder
15%inclusion9 decks60 decks
15%synergy
Psychic Frog
15%inclusion9 decks60 decks
8%synergy
Ghostly Pilferer
15%inclusion9 decks60 decks
8%synergy
Gremlin Tamer
13%inclusion8 decks60 decks
12%synergy
Mockingbird
13%inclusion8 decks60 decks
9%synergy
Wan Shi Tong, Librarian
13%inclusion3 decks24 decks
7%synergy
Sage of Mysteries
12%inclusion7 decks60 decks
11%synergy
Talion, the Kindly Lord
12%inclusion7 decks60 decks
4%synergy
Solemn Simulacrum
10%inclusion6 decks60 decks
-4%synergy
Opposition Agent
10%inclusion6 decks60 decks
2%synergy
Overlord of the Mistmoors
10%inclusion6 decks60 decks
8%synergy
Athreos, Shroud-Veiled
10%inclusion6 decks60 decks
6%synergy
Archetype of Imagination
10%inclusion6 decks60 decks
5%synergy
Mindwrack Harpy
10%inclusion6 decks60 decks
10%synergy
Witch Enchanter
8.3%inclusion5 decks60 decks
1%synergy
Archivist of Oghma
8.3%inclusion5 decks60 decks
2%synergy
Hoarding Broodlord
8.3%inclusion5 decks60 decks
7%synergy
Phyrexian Metamorph
8.3%inclusion5 decks60 decks
0%synergy
Heliod, Sun-Crowned
8.3%inclusion5 decks60 decks
5%synergy
Skullsnap Nuisance
8.3%inclusion5 decks60 decks
8%synergy
Spirited Companion
8.3%inclusion5 decks60 decks
6%synergy
Instants
Dark Ritual
40%inclusion24 decks60 decks
20%synergy
Counterspell
35%inclusion21 decks60 decks
-7%synergy
Path to Exile
35%inclusion21 decks60 decks
-7%synergy
Swan Song
33%inclusion20 decks60 decks
14%synergy
Mana Drain
30%inclusion18 decks60 decks
13%synergy
Dovin's Veto
25%inclusion15 decks60 decks
-1%synergy
Arcane Denial
25%inclusion15 decks60 decks
5%synergy
Force of Will
22%inclusion13 decks60 decks
9%synergy
Gifts Ungiven
20%inclusion12 decks60 decks
18%synergy
Flusterstorm
18%inclusion11 decks60 decks
10%synergy
Silence
18%inclusion11 decks60 decks
8%synergy
Force of Negation
18%inclusion11 decks60 decks
7%synergy
Void Rend
17%inclusion10 decks60 decks
-18%synergy
Sink into Stupor
17%inclusion10 decks60 decks
4%synergy
Mystical Tutor
17%inclusion10 decks60 decks
6%synergy
Teferi's Protection
13%inclusion8 decks60 decks
-3%synergy
Frantic Search
13%inclusion8 decks60 decks
-4%synergy
Cabal Ritual
13%inclusion8 decks60 decks
10%synergy
Demonic Consultation
13%inclusion8 decks60 decks
5%synergy
Muddle the Mixture
12%inclusion7 decks60 decks
8%synergy
Brainstorm
12%inclusion7 decks60 decks
-5%synergy
Intuition
12%inclusion7 decks60 decks
10%synergy
Borne Upon a Wind
12%inclusion7 decks60 decks
7%synergy
Tainted Pact
10%inclusion6 decks60 decks
3%synergy
Negate
10%inclusion6 decks60 decks
-6%synergy
Into the Flood Maw
10%inclusion6 decks60 decks
6%synergy
Get Out
10%inclusion6 decks60 decks
10%synergy
Otherworldly Gaze
10%inclusion6 decks60 decks
8%synergy
Mental Misstep
8.3%inclusion5 decks60 decks
2%synergy
Retraction Helix
8.3%inclusion5 decks60 decks
8%synergy
Brain Freeze
8.3%inclusion5 decks60 decks
8%synergy
Thirst for Meaning
8.3%inclusion5 decks60 decks
7%synergy
Utter End
8.3%inclusion5 decks60 decks
2%synergy
Inkshield
8.3%inclusion5 decks60 decks
-1%synergy
Deadly Rollick
6.7%inclusion4 decks60 decks
-8%synergy
Fell the Profane
6.7%inclusion4 decks60 decks
-2%synergy
Sacrifice
6.7%inclusion4 decks60 decks
6%synergy
Consider
6.7%inclusion4 decks60 decks
4%synergy
Ad Nauseam
6.7%inclusion4 decks60 decks
4%synergy
Saw in Half
6.7%inclusion4 decks60 decks
5%synergy
Shred Memory
5.0%inclusion3 decks60 decks
5%synergy
Chain of Vapor
5.0%inclusion3 decks60 decks
2%synergy
Return to Dust
5.0%inclusion3 decks60 decks
1%synergy
Mindbreak Trap
5.0%inclusion3 decks60 decks
-2%synergy
Darkblast
5.0%inclusion3 decks60 decks
5%synergy
Culling the Weak
5.0%inclusion3 decks60 decks
3%synergy
Dispel
5.0%inclusion3 decks60 decks
2%synergy
Banishing Knack
5.0%inclusion3 decks60 decks
5%synergy
Opt
5.0%inclusion3 decks60 decks
1%synergy
Strix Serenade
5.0%inclusion3 decks60 decks
1%synergy
Sorceries
Windfall
33%inclusion20 decks60 decks
20%synergy
Reanimate
30%inclusion18 decks60 decks
14%synergy
Toxic Deluge
23%inclusion14 decks60 decks
4%synergy
Redress Fate
20%inclusion12 decks60 decks
14%synergy
Damn
17%inclusion10 decks60 decks
-4%synergy
Demonic Counsel
15%inclusion9 decks60 decks
14%synergy
Lively Dirge
12%inclusion7 decks60 decks
10%synergy
Glimpse the Unthinkable
12%inclusion7 decks60 decks
11%synergy
Supreme Verdict
10%inclusion6 decks60 decks
-5%synergy
Unmarked Grave
10%inclusion6 decks60 decks
9%synergy
Extinguish All Hope
10%inclusion6 decks60 decks
8%synergy
Ponder
8.3%inclusion5 decks60 decks
-1%synergy
Time Wipe
8.3%inclusion5 decks60 decks
2%synergy
Idyllic Tutor
8.3%inclusion5 decks60 decks
4%synergy
Dance of the Manse
8.3%inclusion5 decks60 decks
5%synergy
Buried Alive
6.7%inclusion4 decks60 decks
3%synergy
Grim Tutor
6.7%inclusion4 decks60 decks
2%synergy
Space-Time Anomaly
5.3%inclusion2 decks38 decks
4%synergy
Singularity Rupture
5.1%inclusion2 decks39 decks
3%synergy
Resurgent Belief
5.0%inclusion3 decks60 decks
3%synergy
Imperial Seal
5.0%inclusion3 decks60 decks
-2%synergy
Open the Vaults
5.0%inclusion3 decks60 decks
4%synergy
Yawgmoth's Will
5.0%inclusion3 decks60 decks
4%synergy
Wrath of God
5.0%inclusion3 decks60 decks
1%synergy
Read the Bones
5.0%inclusion3 decks60 decks
1%synergy
Final Parting
5.0%inclusion3 decks60 decks
4%synergy
Beseech the Mirror
5.0%inclusion3 decks60 decks
1%synergy
Damnation
5.0%inclusion3 decks60 decks
2%synergy
Utility Artifacts
Mesmeric Orb
22%inclusion13 decks60 decks
21%synergy
The One Ring
22%inclusion13 decks60 decks
8%synergy
Wishclaw Talisman
20%inclusion12 decks60 decks
12%synergy
Lightning Greaves
10%inclusion6 decks60 decks
-13%synergy
Sensei's Divining Top
8.3%inclusion5 decks60 decks
-1%synergy
Keys to the House
6.7%inclusion4 decks60 decks
6%synergy
Whip of Erebos
5.0%inclusion3 decks60 decks
3%synergy
Altar of the Brood
5.0%inclusion3 decks60 decks
4%synergy
Enchantments
Sphere of Safety
42%inclusion25 decks60 decks
32%synergy
Amphibian Downpour
42%inclusion25 decks60 decks
37%synergy
Secret Arcade // Dusty Parlor
38%inclusion23 decks60 decks
34%synergy
Ghostly Prison
38%inclusion23 decks60 decks
16%synergy
Grasp of Fate
37%inclusion22 decks60 decks
31%synergy
The Meathook Massacre
35%inclusion21 decks60 decks
32%synergy
Tinybones Joins Up
35%inclusion21 decks60 decks
34%synergy
Propaganda
35%inclusion21 decks60 decks
7%synergy
Touch the Spirit Realm
32%inclusion19 decks60 decks
29%synergy
Cemetery Tampering
32%inclusion19 decks60 decks
31%synergy
Seal of Cleansing
32%inclusion19 decks60 decks
30%synergy
Out of the Tombs
25%inclusion15 decks60 decks
25%synergy
Static Prison
23%inclusion14 decks60 decks
23%synergy
Cacophony Unleashed
20%inclusion12 decks60 decks
18%synergy
Authority of the Consuls
20%inclusion12 decks60 decks
8%synergy
Starfield of Nyx
20%inclusion12 decks60 decks
16%synergy
Darksteel Mutation
18%inclusion11 decks60 decks
12%synergy
Sigil of the Empty Throne
18%inclusion11 decks60 decks
12%synergy
Monologue Tax
18%inclusion11 decks60 decks
12%synergy
Enchanted Evening
18%inclusion11 decks60 decks
17%synergy
Black Market Connections
18%inclusion11 decks60 decks
4%synergy
Land Tax
18%inclusion11 decks60 decks
12%synergy
Estrid's Invocation
17%inclusion10 decks60 decks
12%synergy
Copy Enchantment
17%inclusion10 decks60 decks
12%synergy
Central Elevator // Promising Stairs
17%inclusion10 decks60 decks
16%synergy
Ethereal Armor
17%inclusion10 decks60 decks
12%synergy
Greater Auramancy
17%inclusion10 decks60 decks
12%synergy
Trouble in Pairs
17%inclusion10 decks60 decks
11%synergy
Court of Cunning
15%inclusion9 decks60 decks
14%synergy
All That Glitters
15%inclusion9 decks60 decks
6%synergy
Aura of Silence
15%inclusion9 decks60 decks
12%synergy
Stillness in Motion
15%inclusion8 decks55 decks
14%synergy
Timely Ward
13%inclusion8 decks60 decks
8%synergy
Restricted Office // Lecture Hall
13%inclusion8 decks60 decks
11%synergy
Sheltered by Ghosts
13%inclusion8 decks60 decks
11%synergy
Solitary Confinement
13%inclusion8 decks60 decks
11%synergy
Hallowed Haunting
13%inclusion8 decks60 decks
11%synergy
The Tale of Tamiyo
12%inclusion7 decks60 decks
11%synergy
Dazzling Theater // Prop Room
12%inclusion7 decks60 decks
10%synergy
Nowhere to Run
12%inclusion7 decks60 decks
10%synergy
Phyrexian Arena
12%inclusion7 decks60 decks
-2%synergy
Defiled Crypt // Cadaver Lab
12%inclusion7 decks60 decks
11%synergy
Imprisoned in the Moon
10%inclusion6 decks60 decks
3%synergy
Chronic Flooding
10%inclusion6 decks60 decks
10%synergy
Shark Typhoon
10%inclusion6 decks60 decks
4%synergy
Leyline of Anticipation
10%inclusion6 decks60 decks
6%synergy
Funeral Room // Awakening Hall
10%inclusion6 decks60 decks
9%synergy
Bottomless Pool // Locker Room
10%inclusion6 decks60 decks
8%synergy
Oubliette
10%inclusion6 decks60 decks
8%synergy
Mirror Room // Fractured Realm
10%inclusion6 decks60 decks
8%synergy
Battles
Invasion of Theros
5.0%inclusion3 decks60 decks
3%synergy
Planeswalkers
Teferi, Time Raveler
20%inclusion12 decks60 decks
12%synergy
Ashiok, Dream Render
5.0%inclusion3 decks60 decks
3%synergy
Utility Lands
Hall of Heliod's Generosity
45%inclusion27 decks60 decks
32%synergy
Bojuka Bog
37%inclusion22 decks60 decks
10%synergy
Otawara, Soaring City
32%inclusion19 decks60 decks
13%synergy
Cephalid Coliseum
22%inclusion13 decks60 decks
18%synergy
Serra's Sanctum
17%inclusion10 decks60 decks
15%synergy
Urza's Saga
15%inclusion9 decks60 decks
3%synergy
Takenuma, Abandoned Mire
15%inclusion9 decks60 decks
9%synergy
Emergence Zone
12%inclusion7 decks60 decks
10%synergy
Urborg, Tomb of Yawgmoth
10%inclusion6 decks60 decks
-3%synergy
Halimar Depths
8.3%inclusion5 decks60 decks
4%synergy
Mistrise Village
5.5%inclusion3 decks55 decks
2%synergy
Adagia, Windswept Bastion
5.1%inclusion2 decks39 decks
3%synergy
Volrath's Stronghold
5.0%inclusion3 decks60 decks
4%synergy
Eiganjo, Seat of the Empire
5.0%inclusion3 decks60 decks
0%synergy
Dakmor Salvage
5.0%inclusion3 decks60 decks
5%synergy
Temple of the False God
5.0%inclusion3 decks60 decks
-3%synergy
Rogue's Passage
5.0%inclusion3 decks60 decks
-5%synergy
Mana Artifacts
Sol Ring
93%inclusion56 decks60 decks
3%synergy
Arcane Signet
83%inclusion50 decks60 decks
-4%synergy
Talisman of Dominance
60%inclusion36 decks60 decks
10%synergy
Talisman of Progress
58%inclusion35 decks60 decks
15%synergy
Talisman of Hierarchy
57%inclusion34 decks60 decks
13%synergy
Fellwar Stone
35%inclusion21 decks60 decks
2%synergy
Azorius Signet
35%inclusion21 decks60 decks
4%synergy
Orzhov Signet
32%inclusion19 decks60 decks
-1%synergy
Dimir Signet
23%inclusion14 decks60 decks
-8%synergy
Lotus Petal
20%inclusion12 decks60 decks
10%synergy
Mana Vault
18%inclusion11 decks60 decks
9%synergy
Chrome Mox
18%inclusion11 decks60 decks
9%synergy
Commander's Sphere
13%inclusion8 decks60 decks
-5%synergy
Mind Stone
13%inclusion8 decks60 decks
1%synergy
Mox Opal
10%inclusion6 decks60 decks
1%synergy
Mox Amber
8.3%inclusion5 decks60 decks
2%synergy
Lion's Eye Diamond
8.3%inclusion5 decks60 decks
6%synergy
Mox Diamond
6.7%inclusion4 decks60 decks
0%synergy
Hourglass of the Lost
5.0%inclusion3 decks60 decks
5%synergy
Lands
Island
97%inclusion58 decks60 decks
4%synergy
Swamp
95%inclusion57 decks60 decks
3%synergy
Plains
95%inclusion57 decks60 decks
3%synergy
Command Tower
93%inclusion56 decks60 decks
1%synergy
Hallowed Fountain
62%inclusion37 decks60 decks
12%synergy
Watery Grave
62%inclusion37 decks60 decks
11%synergy
Godless Shrine
58%inclusion35 decks60 decks
7%synergy
Caves of Koilos
57%inclusion34 decks60 decks
21%synergy
Polluted Delta
53%inclusion32 decks60 decks
16%synergy
Flooded Strand
53%inclusion32 decks60 decks
15%synergy
Marsh Flats
50%inclusion30 decks60 decks
14%synergy
Adarkar Wastes
48%inclusion29 decks60 decks
17%synergy
Exotic Orchard
47%inclusion28 decks60 decks
-12%synergy
Underground River
47%inclusion28 decks60 decks
13%synergy
Sea of Clouds
42%inclusion25 decks60 decks
6%synergy
Arcane Sanctum
40%inclusion24 decks60 decks
-14%synergy
Glacial Fortress
38%inclusion23 decks60 decks
-3%synergy
Raffine's Tower
38%inclusion23 decks60 decks
-3%synergy
Morphic Pool
38%inclusion23 decks60 decks
4%synergy
Vault of Champions
38%inclusion23 decks60 decks
6%synergy
Undercity Sewers
37%inclusion22 decks60 decks
22%synergy
Meticulous Archive
37%inclusion22 decks60 decks
23%synergy
Shadowy Backstreet
33%inclusion20 decks60 decks
21%synergy
Isolated Chapel
30%inclusion18 decks60 decks
-10%synergy
Temple of Deceit
27%inclusion16 decks60 decks
9%synergy
Valgavoth's Lair
27%inclusion16 decks60 decks
24%synergy
Drowned Catacomb
27%inclusion16 decks60 decks
-10%synergy
Temple of Enlightenment
25%inclusion15 decks60 decks
9%synergy
Temple of Silence
25%inclusion15 decks60 decks
6%synergy
Prairie Stream
23%inclusion14 decks60 decks
-17%synergy
Gloomlake Verge
23%inclusion14 decks60 decks
12%synergy
Tainted Isle
22%inclusion13 decks60 decks
15%synergy
Tainted Field
22%inclusion13 decks60 decks
15%synergy
Azorius Chancery
20%inclusion12 decks60 decks
6%synergy
Dimir Aqueduct
20%inclusion12 decks60 decks
7%synergy
Orzhov Basilica
20%inclusion12 decks60 decks
5%synergy
Obscura Storefront
20%inclusion12 decks60 decks
10%synergy
Floodfarm Verge
20%inclusion12 decks60 decks
9%synergy
City of Brass
20%inclusion12 decks60 decks
5%synergy
Bloodstained Mire
20%inclusion12 decks60 decks
9%synergy
Verdant Catacombs
18%inclusion11 decks60 decks
8%synergy
Tundra
17%inclusion10 decks60 decks
1%synergy
Windswept Heath
17%inclusion10 decks60 decks
7%synergy
Underground Sea
17%inclusion10 decks60 decks
1%synergy
Shipwreck Marsh
17%inclusion10 decks60 decks
-4%synergy
Evolving Wilds
17%inclusion10 decks60 decks
-8%synergy
Sink into Stupor
17%inclusion10 decks60 decks
4%synergy
Shattered Sanctum
17%inclusion10 decks60 decks
0%synergy
Scrubland
17%inclusion10 decks60 decks
1%synergy
Misty Rainforest
15%inclusion9 decks60 decks
4%synergy