The Master of Keys (Commander) - Expensive Upgraded 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
Twilight Diviner
14%inclusion1 decks7 decks
13%synergy
Perfect Intimidation
11%inclusion1 decks9 decks
11%synergy
High Synergy Cards
Ripples of Undeath
75%inclusion9 decks12 decks
72%synergy
Amphibian Downpour
75%inclusion9 decks12 decks
70%synergy
Dress Down
67%inclusion8 decks12 decks
64%synergy
Entity Tracker
67%inclusion8 decks12 decks
60%synergy
Inquisitive Glimmer
67%inclusion8 decks12 decks
59%synergy
Animate Dead
67%inclusion8 decks12 decks
57%synergy
Dance of the Dead
58%inclusion7 decks12 decks
56%synergy
Necromancy
58%inclusion7 decks12 decks
54%synergy
Estrid's Invocation
58%inclusion7 decks12 decks
54%synergy
Demon of Fate's Design
58%inclusion7 decks12 decks
53%synergy
Top Cards
Propaganda
67%inclusion8 decks12 decks
39%synergy
Sevinne's Reclamation
58%inclusion7 decks12 decks
49%synergy
An Offer You Can't Refuse
58%inclusion7 decks12 decks
31%synergy
Mirrormade
58%inclusion7 decks12 decks
49%synergy
Swords to Plowshares
58%inclusion7 decks12 decks
-10%synergy
Ghostly Prison
58%inclusion7 decks12 decks
36%synergy
Starfield Mystic
50%inclusion6 decks12 decks
43%synergy
Entomb
50%inclusion6 decks12 decks
43%synergy
Gravebreaker Lamia
50%inclusion6 decks12 decks
49%synergy
Blind Obedience
50%inclusion6 decks12 decks
38%synergy
Game Changers
Smothering Tithe
67%inclusion8 decks12 decks
36%synergy
Rhystic Study
50%inclusion6 decks12 decks
19%synergy
Serra's Sanctum
25%inclusion3 decks12 decks
23%synergy
Farewell
25%inclusion3 decks12 decks
12%synergy
Teferi's Protection
17%inclusion2 decks12 decks
0%synergy
The One Ring
17%inclusion2 decks12 decks
3%synergy
Intuition
17%inclusion2 decks12 decks
15%synergy
Gifts Ungiven
17%inclusion2 decks12 decks
14%synergy
Imperial Seal
8.3%inclusion1 decks12 decks
1%synergy
Thassa's Oracle
8.3%inclusion1 decks12 decks
-1%synergy
Creatures
Fear of Impostors
50%inclusion6 decks12 decks
49%synergy
Mesa Enchantress
50%inclusion6 decks12 decks
41%synergy
Overlord of the Floodpits
42%inclusion5 decks12 decks
38%synergy
Overlord of the Balemurk
42%inclusion5 decks12 decks
40%synergy
Fear of Sleep Paralysis
42%inclusion5 decks12 decks
36%synergy
Doomwake Giant
42%inclusion5 decks12 decks
36%synergy
Ondu Spiritdancer
42%inclusion5 decks12 decks
35%synergy
Zur the Enchanter
42%inclusion5 decks12 decks
36%synergy
Scrabbling Skullcrab
33%inclusion4 decks12 decks
32%synergy
Esper Sentinel
33%inclusion4 decks12 decks
6%synergy
Silent Hallcreeper
33%inclusion4 decks12 decks
29%synergy
Victor, Valgavoth's Seneschal
33%inclusion4 decks12 decks
31%synergy
Ghostly Dancers
33%inclusion4 decks12 decks
31%synergy
Zur, Eternal Schemer
33%inclusion4 decks12 decks
30%synergy
Hullbreaker Horror
33%inclusion4 decks12 decks
27%synergy
Sun Titan
25%inclusion3 decks12 decks
17%synergy
Grim Guardian
25%inclusion3 decks12 decks
22%synergy
Abdel Adrian, Gorion's Ward
25%inclusion3 decks12 decks
23%synergy
Ledger Shredder
25%inclusion3 decks12 decks
16%synergy
Stenn, Paranoid Partisan
17%inclusion2 decks12 decks
15%synergy
Lotho, Corrupt Shirriff
17%inclusion2 decks12 decks
0%synergy
Lurrus of the Dream-Den
17%inclusion2 decks12 decks
15%synergy
Sage of Mysteries
17%inclusion2 decks12 decks
16%synergy
Moon-Blessed Cleric
17%inclusion2 decks12 decks
12%synergy
Enduring Curiosity
17%inclusion2 decks12 decks
9%synergy
Neerdiv, Devious Diver
17%inclusion2 decks12 decks
16%synergy
Heliod, the Radiant Dawn
17%inclusion2 decks12 decks
13%synergy
Nezahal, Primal Tide
17%inclusion2 decks12 decks
13%synergy
Valgavoth, Terror Eater
17%inclusion2 decks12 decks
13%synergy
Summon: Leviathan
10%inclusion1 decks10 decks
10%synergy
Summon: Bahamut
10%inclusion1 decks10 decks
9%synergy
Summon: Yojimbo
10%inclusion1 decks10 decks
9%synergy
Starnheim Courser
8.3%inclusion1 decks12 decks
4%synergy
Witch Enchanter
8.3%inclusion1 decks12 decks
1%synergy
Displacer Kitten
8.3%inclusion1 decks12 decks
1%synergy
Protean Thaumaturge
8.3%inclusion1 decks12 decks
8%synergy
Snapcaster Mage
8.3%inclusion1 decks12 decks
6%synergy
Consecrated Sphinx
8.3%inclusion1 decks12 decks
2%synergy
Hunted Horror
8.3%inclusion1 decks12 decks
8%synergy
Phyrexian Obliterator
8.3%inclusion1 decks12 decks
8%synergy
Valley Floodcaller
8.3%inclusion1 decks12 decks
4%synergy
Archon of Sun's Grace
8.3%inclusion1 decks12 decks
4%synergy
Doom Whisperer
8.3%inclusion1 decks12 decks
7%synergy
Agent of Treachery
8.3%inclusion1 decks12 decks
6%synergy
Zellix, Sanity Flayer
8.3%inclusion1 decks12 decks
8%synergy
Sphinx of the Second Sun
8.3%inclusion1 decks12 decks
7%synergy
Fear of Surveillance
8.3%inclusion1 decks12 decks
8%synergy
Nighthowler
8.3%inclusion1 decks12 decks
8%synergy
Jace, Vryn's Prodigy
8.3%inclusion1 decks12 decks
8%synergy
Soaring Lightbringer
8.3%inclusion1 decks12 decks
4%synergy
Instants
Swan Song
50%inclusion6 decks12 decks
30%synergy
Arcane Denial
42%inclusion5 decks12 decks
21%synergy
Mana Drain
25%inclusion3 decks12 decks
8%synergy
Sink into Stupor
25%inclusion3 decks12 decks
12%synergy
Path to Exile
25%inclusion3 decks12 decks
-17%synergy
Fell the Profane
17%inclusion2 decks12 decks
8%synergy
Dovin's Veto
17%inclusion2 decks12 decks
-9%synergy
Negate
17%inclusion2 decks12 decks
0%synergy
Dark Ritual
17%inclusion2 decks12 decks
-3%synergy
Cabal Ritual
17%inclusion2 decks12 decks
13%synergy
Strix Serenade
17%inclusion2 decks12 decks
13%synergy
Counterspell
17%inclusion2 decks12 decks
-25%synergy
Generous Gift
17%inclusion2 decks12 decks
2%synergy
Consign to Memory
8.3%inclusion1 decks12 decks
8%synergy
Eerie Interference
8.3%inclusion1 decks12 decks
8%synergy
Brainstorm
8.3%inclusion1 decks12 decks
-9%synergy
Brain Freeze
8.3%inclusion1 decks12 decks
8%synergy
Darkblast
8.3%inclusion1 decks12 decks
8%synergy
Thirst for Meaning
8.3%inclusion1 decks12 decks
7%synergy
Void Rend
8.3%inclusion1 decks12 decks
-26%synergy
Seized from Slumber
8.3%inclusion1 decks12 decks
8%synergy
Obscura Charm
8.3%inclusion1 decks12 decks
6%synergy
Silence
8.3%inclusion1 decks12 decks
-2%synergy
Perplex
8.3%inclusion1 decks12 decks
7%synergy
Jwari Disruption
8.3%inclusion1 decks12 decks
8%synergy
Malakir Rebirth
8.3%inclusion1 decks12 decks
4%synergy
Force of Negation
8.3%inclusion1 decks12 decks
-3%synergy
Stifle
8.3%inclusion1 decks12 decks
8%synergy
Faithful Mending
8.3%inclusion1 decks12 decks
5%synergy
Despark
8.3%inclusion1 decks12 decks
-8%synergy
Otherworldly Gaze
8.3%inclusion1 decks12 decks
6%synergy
Enlightened Tutor
8.3%inclusion1 decks12 decks
-11%synergy
Fierce Guardianship
8.3%inclusion1 decks12 decks
-12%synergy
Memory Deluge
8.3%inclusion1 decks12 decks
8%synergy
Mortify
8.3%inclusion1 decks12 decks
-1%synergy
Withering Torment
8.3%inclusion1 decks12 decks
7%synergy
Sorceries
Reanimate
42%inclusion5 decks12 decks
26%synergy
Redress Fate
33%inclusion4 decks12 decks
28%synergy
Replenish
25%inclusion3 decks12 decks
23%synergy
Glimpse the Unthinkable
25%inclusion3 decks12 decks
25%synergy
Ponder
17%inclusion2 decks12 decks
8%synergy
Supreme Verdict
17%inclusion2 decks12 decks
2%synergy
Windfall
17%inclusion2 decks12 decks
3%synergy
Wrath of God
17%inclusion2 decks12 decks
13%synergy
Toxic Deluge
17%inclusion2 decks12 decks
-3%synergy
Singularity Rupture
10%inclusion1 decks10 decks
8%synergy
Space-Time Anomaly
10%inclusion1 decks10 decks
8%synergy
Winternight Stories
9.1%inclusion1 decks11 decks
8%synergy
Commune with Evil
8.3%inclusion1 decks12 decks
8%synergy
Austere Command
8.3%inclusion1 decks12 decks
0%synergy
Incarnation Technique
8.3%inclusion1 decks12 decks
8%synergy
Lively Dirge
8.3%inclusion1 decks12 decks
7%synergy
Resurgent Belief
8.3%inclusion1 decks12 decks
6%synergy
Tranquilize
8.3%inclusion1 decks12 decks
8%synergy
Clear the Mind
8.3%inclusion1 decks12 decks
8%synergy
Victimize
8.3%inclusion1 decks12 decks
0%synergy
Consuming Tide
8.3%inclusion1 decks12 decks
8%synergy
Open the Armory
8.3%inclusion1 decks12 decks
5%synergy
Time Wipe
8.3%inclusion1 decks12 decks
2%synergy
Sea Gate Restoration
8.3%inclusion1 decks12 decks
6%synergy
Idyllic Tutor
8.3%inclusion1 decks12 decks
4%synergy
Scheming Symmetry
8.3%inclusion1 decks12 decks
7%synergy
Demonic Counsel
8.3%inclusion1 decks12 decks
7%synergy
Slaughter the Strong
8.3%inclusion1 decks12 decks
8%synergy
Demonic Tutor
8.3%inclusion1 decks12 decks
-12%synergy
Preordain
8.3%inclusion1 decks12 decks
3%synergy
Damn
8.3%inclusion1 decks12 decks
-12%synergy
Extinguish All Hope
8.3%inclusion1 decks12 decks
7%synergy
Approach of the Second Sun
8.3%inclusion1 decks12 decks
5%synergy
Portent
8.3%inclusion1 decks12 decks
5%synergy
Sunfall
8.3%inclusion1 decks12 decks
8%synergy
Dance of the Manse
8.3%inclusion1 decks12 decks
5%synergy
Utility Artifacts
Mesmeric Orb
33%inclusion4 decks12 decks
32%synergy
Chimil, the Inner Sun
17%inclusion2 decks12 decks
16%synergy
Cloud Key
17%inclusion2 decks12 decks
13%synergy
Lightning Greaves
17%inclusion2 decks12 decks
-6%synergy
Perpetual Timepiece
8.3%inclusion1 decks12 decks
8%synergy
Scroll Rack
8.3%inclusion1 decks12 decks
6%synergy
Palantír of Orthanc
8.3%inclusion1 decks12 decks
7%synergy
Fraying Line
8.3%inclusion1 decks12 decks
8%synergy
Swiftfoot Boots
8.3%inclusion1 decks12 decks
-16%synergy
Umbilicus
8.3%inclusion1 decks12 decks
8%synergy
Altar of Dementia
8.3%inclusion1 decks12 decks
7%synergy
Crystal Chimes
8.3%inclusion1 decks12 decks
8%synergy
Enchantments
Mystic Remora
50%inclusion6 decks12 decks
29%synergy
Sphere of Safety
50%inclusion6 decks12 decks
41%synergy
Seal of Cleansing
50%inclusion6 decks12 decks
49%synergy
Sigil of the Empty Throne
42%inclusion5 decks12 decks
36%synergy
Out of the Tombs
42%inclusion5 decks12 decks
41%synergy
Authority of the Consuls
42%inclusion5 decks12 decks
29%synergy
Static Prison
42%inclusion5 decks12 decks
41%synergy
Secret Arcade // Dusty Parlor
42%inclusion5 decks12 decks
37%synergy
Seal of Removal
42%inclusion5 decks12 decks
41%synergy
Stillness in Motion
36%inclusion4 decks11 decks
36%synergy
The Meathook Massacre
33%inclusion4 decks12 decks
30%synergy
Grasp of Fate
33%inclusion4 decks12 decks
27%synergy
Copy Enchantment
33%inclusion4 decks12 decks
29%synergy
Trouble in Pairs
33%inclusion4 decks12 decks
28%synergy
Court of Cunning
25%inclusion3 decks12 decks
24%synergy
Imprisoned in the Moon
25%inclusion3 decks12 decks
18%synergy
Out of Time
25%inclusion3 decks12 decks
24%synergy
Shark Typhoon
25%inclusion3 decks12 decks
19%synergy
Leyline of Anticipation
25%inclusion3 decks12 decks
21%synergy
Monologue Tax
25%inclusion3 decks12 decks
19%synergy
Secrets of the Dead
25%inclusion3 decks12 decks
25%synergy
Dazzling Theater // Prop Room
25%inclusion3 decks12 decks
24%synergy
Oubliette
25%inclusion3 decks12 decks
23%synergy
Land Tax
25%inclusion3 decks12 decks
19%synergy
Hallowed Haunting
25%inclusion3 decks12 decks
23%synergy
Greater Auramancy
25%inclusion3 decks12 decks
21%synergy
Aura of Silence
25%inclusion3 decks12 decks
22%synergy
Chakra Meditation
22%inclusion2 decks9 decks
22%synergy
Tempest Technique
18%inclusion2 decks11 decks
18%synergy
Darksteel Mutation
17%inclusion2 decks12 decks
11%synergy
Smuggler's Share
17%inclusion2 decks12 decks
15%synergy
Cacophony Unleashed
17%inclusion2 decks12 decks
15%synergy
Extravagant Replication
17%inclusion2 decks12 decks
12%synergy
Tinybones Joins Up
17%inclusion2 decks12 decks
15%synergy
Chronic Flooding
17%inclusion2 decks12 decks
17%synergy
Touch the Spirit Realm
17%inclusion2 decks12 decks
14%synergy
Attunement
17%inclusion2 decks12 decks
16%synergy
Dance of Many
17%inclusion2 decks12 decks
17%synergy
Omniscience
17%inclusion2 decks12 decks
13%synergy
The Tale of Tamiyo
17%inclusion2 decks12 decks
16%synergy
Cemetery Tampering
17%inclusion2 decks12 decks
16%synergy
Kaya's Ghostform
17%inclusion2 decks12 decks
14%synergy
Restricted Office // Lecture Hall
17%inclusion2 decks12 decks
15%synergy
Enchanted Evening
17%inclusion2 decks12 decks
15%synergy
Polluted Cistern // Dim Oubliette
17%inclusion2 decks12 decks
16%synergy
Solitary Confinement
17%inclusion2 decks12 decks
15%synergy
Nowhere to Run
17%inclusion2 decks12 decks
15%synergy
Search for Azcanta
17%inclusion2 decks12 decks
16%synergy
Defiled Crypt // Cadaver Lab
17%inclusion2 decks12 decks
16%synergy
Virtue of Persistence
17%inclusion2 decks12 decks
15%synergy
Planeswalkers
Jace, the Perfected Mind
8.3%inclusion1 decks12 decks
8%synergy
Ashiok, Dream Render
8.3%inclusion1 decks12 decks
7%synergy
Utility Lands
Hall of Heliod's Generosity
50%inclusion6 decks12 decks
37%synergy
Reliquary Tower
33%inclusion4 decks12 decks
-1%synergy
Cephalid Coliseum
33%inclusion4 decks12 decks
30%synergy
Otawara, Soaring City
33%inclusion4 decks12 decks
14%synergy
Takenuma, Abandoned Mire
25%inclusion3 decks12 decks
19%synergy
Bojuka Bog
17%inclusion2 decks12 decks
-10%synergy
Urza's Saga
17%inclusion2 decks12 decks
5%synergy
Urborg, Tomb of Yawgmoth
17%inclusion2 decks12 decks
4%synergy
Agna Qel'a
11%inclusion1 decks9 decks
10%synergy
Ishgard, the Holy See
10%inclusion1 decks10 decks
6%synergy
Adagia, Windswept Bastion
10%inclusion1 decks10 decks
8%synergy
Minamo, School at Water's Edge
8.3%inclusion1 decks12 decks
4%synergy
Phyrexian Tower
8.3%inclusion1 decks12 decks
5%synergy
Creeping Tar Pit
8.3%inclusion1 decks12 decks
7%synergy
Maze of Ith
8.3%inclusion1 decks12 decks
6%synergy
Halimar Depths
8.3%inclusion1 decks12 decks
4%synergy
Nephalia Drownyard
8.3%inclusion1 decks12 decks
8%synergy
Geier Reach Sanitarium
8.3%inclusion1 decks12 decks
4%synergy
Eiganjo, Seat of the Empire
8.3%inclusion1 decks12 decks
3%synergy
Nykthos, Shrine to Nyx
8.3%inclusion1 decks12 decks
7%synergy
Temple of the False God
8.3%inclusion1 decks12 decks
1%synergy
Rogue's Passage
8.3%inclusion1 decks12 decks
-1%synergy
Mana Artifacts
Sol Ring
100%inclusion12 decks12 decks
10%synergy
Arcane Signet
83%inclusion10 decks12 decks
-4%synergy
Talisman of Progress
42%inclusion5 decks12 decks
-2%synergy
Talisman of Dominance
33%inclusion4 decks12 decks
-16%synergy
Talisman of Hierarchy
33%inclusion4 decks12 decks
-11%synergy
Fellwar Stone
25%inclusion3 decks12 decks
-8%synergy
Azorius Signet
25%inclusion3 decks12 decks
-6%synergy
Dimir Signet
17%inclusion2 decks12 decks
-15%synergy
Thought Vessel
17%inclusion2 decks12 decks
-8%synergy
Mind Stone
17%inclusion2 decks12 decks
4%synergy
Orzhov Signet
17%inclusion2 decks12 decks
-16%synergy
Commander's Sphere
8.3%inclusion1 decks12 decks
-10%synergy
Coldsteel Heart
8.3%inclusion1 decks12 decks
8%synergy
Lotus Petal
8.3%inclusion1 decks12 decks
-2%synergy
Patchwork Banner
8.3%inclusion1 decks12 decks
4%synergy
Mox Amber
8.3%inclusion1 decks12 decks
2%synergy
Obelisk of Esper
8.3%inclusion1 decks12 decks
7%synergy
Springleaf Drum
8.3%inclusion1 decks12 decks
7%synergy
Lands
Command Tower
100%inclusion12 decks12 decks
7%synergy
Swamp
100%inclusion12 decks12 decks
8%synergy
Godless Shrine
100%inclusion12 decks12 decks
49%synergy
Island
100%inclusion12 decks12 decks
7%synergy
Hallowed Fountain
100%inclusion12 decks12 decks
50%synergy
Plains
92%inclusion11 decks12 decks
0%synergy
Marsh Flats
92%inclusion11 decks12 decks
56%synergy
Flooded Strand
92%inclusion11 decks12 decks
53%synergy
Watery Grave
92%inclusion11 decks12 decks
41%synergy
Tundra
83%inclusion10 decks12 decks
67%synergy
Sea of Clouds
83%inclusion10 decks12 decks
48%synergy
Morphic Pool
83%inclusion10 decks12 decks
49%synergy
Polluted Delta
83%inclusion10 decks12 decks
46%synergy
Underground Sea
75%inclusion9 decks12 decks
59%synergy
Scrubland
75%inclusion9 decks12 decks
59%synergy
Meticulous Archive
75%inclusion9 decks12 decks
61%synergy
Vault of Champions
75%inclusion9 decks12 decks
42%synergy
Undercity Sewers
67%inclusion8 decks12 decks
52%synergy
Exotic Orchard
67%inclusion8 decks12 decks
8%synergy
Shadowy Backstreet
58%inclusion7 decks12 decks
46%synergy
Raffine's Tower
58%inclusion7 decks12 decks
17%synergy
Misty Rainforest
50%inclusion6 decks12 decks
39%synergy
Arid Mesa
50%inclusion6 decks12 decks
40%synergy
Floodfarm Verge
50%inclusion6 decks12 decks
39%synergy
Windswept Heath
42%inclusion5 decks12 decks
32%synergy
Mana Confluence
42%inclusion5 decks12 decks
28%synergy
Adarkar Wastes
42%inclusion5 decks12 decks
10%synergy
Gloomlake Verge
42%inclusion5 decks12 decks
31%synergy
Deserted Beach
42%inclusion5 decks12 decks
21%synergy
Prismatic Vista
33%inclusion4 decks12 decks
29%synergy
Caves of Koilos
33%inclusion4 decks12 decks
-2%synergy
Shipwreck Marsh
33%inclusion4 decks12 decks
13%synergy
Verdant Catacombs
33%inclusion4 decks12 decks
23%synergy
Arcane Sanctum
33%inclusion4 decks12 decks
-21%synergy
Underground River
33%inclusion4 decks12 decks
0%synergy
Scalding Tarn
33%inclusion4 decks12 decks
22%synergy
Bloodstained Mire
33%inclusion4 decks12 decks
22%synergy
Bleachbone Verge
25%inclusion3 decks12 decks
16%synergy
Valgavoth's Lair
25%inclusion3 decks12 decks
22%synergy
Drowned Catacomb
25%inclusion3 decks12 decks
-12%synergy
Evolving Wilds
25%inclusion3 decks12 decks
0%synergy
Sink into Stupor
25%inclusion3 decks12 decks
12%synergy
Shattered Sanctum
25%inclusion3 decks12 decks
9%synergy
City of Brass
25%inclusion3 decks12 decks
10%synergy
Glacial Fortress
17%inclusion2 decks12 decks
-25%synergy
Fell the Profane
17%inclusion2 decks12 decks
8%synergy
Terramorphic Expanse
17%inclusion2 decks12 decks
0%synergy
Prairie Stream
17%inclusion2 decks12 decks
-24%synergy
Reflecting Pool
17%inclusion2 decks12 decks
9%synergy
Isolated Chapel
17%inclusion2 decks12 decks
-24%synergy