The Master of Keys (Commander) - Pillow Fort

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
Ripples of Undeath
77%inclusion30 decks39 decks
74%synergy
Inquisitive Glimmer
74%inclusion29 decks39 decks
67%synergy
Gravebreaker Lamia
64%inclusion25 decks39 decks
63%synergy
Entity Tracker
69%inclusion27 decks39 decks
63%synergy
Propaganda
87%inclusion34 decks39 decks
61%synergy
Starfield Mystic
67%inclusion26 decks39 decks
60%synergy
Sphere of Safety
69%inclusion27 decks39 decks
60%synergy
Animate Dead
69%inclusion27 decks39 decks
59%synergy
Mesa Enchantress
67%inclusion26 decks39 decks
58%synergy
Cemetery Tampering
54%inclusion21 decks39 decks
53%synergy
Top Cards
Ghostly Prison
74%inclusion29 decks39 decks
53%synergy
Mystic Remora
64%inclusion25 decks39 decks
43%synergy
Grasp of Fate
59%inclusion23 decks39 decks
53%synergy
Sevinne's Reclamation
54%inclusion21 decks39 decks
45%synergy
Scrabbling Skullcrab
51%inclusion20 decks39 decks
50%synergy
Mirrormade
51%inclusion20 decks39 decks
41%synergy
Estrid's Invocation
51%inclusion20 decks39 decks
47%synergy
Doomwake Giant
51%inclusion20 decks39 decks
45%synergy
Dress Down
51%inclusion20 decks39 decks
49%synergy
Demon of Fate's Design
49%inclusion19 decks39 decks
43%synergy
Game Changers
Smothering Tithe
46%inclusion18 decks39 decks
14%synergy
Rhystic Study
33%inclusion13 decks39 decks
1%synergy
Enlightened Tutor
15%inclusion6 decks39 decks
-5%synergy
Cyclonic Rift
13%inclusion5 decks39 decks
-12%synergy
Fierce Guardianship
10%inclusion4 decks39 decks
-10%synergy
Teferi's Protection
7.7%inclusion3 decks39 decks
-9%synergy
Gifts Ungiven
7.7%inclusion3 decks39 decks
5%synergy
Grand Arbiter Augustin IV
5.1%inclusion2 decks39 decks
-1%synergy
Ancient Tomb
5.1%inclusion2 decks39 decks
-8%synergy
Consecrated Sphinx
5.1%inclusion2 decks39 decks
-1%synergy
Creatures
Zur the Enchanter
49%inclusion19 decks39 decks
43%synergy
Overlord of the Floodpits
46%inclusion18 decks39 decks
42%synergy
Ondu Spiritdancer
46%inclusion18 decks39 decks
40%synergy
Fear of Sleep Paralysis
44%inclusion17 decks39 decks
38%synergy
Overlord of the Balemurk
38%inclusion15 decks39 decks
36%synergy
Fear of Impostors
36%inclusion14 decks39 decks
34%synergy
Victor, Valgavoth's Seneschal
36%inclusion14 decks39 decks
34%synergy
Zur, Eternal Schemer
36%inclusion14 decks39 decks
33%synergy
Heliod, the Radiant Dawn
31%inclusion12 decks39 decks
27%synergy
Grim Guardian
28%inclusion11 decks39 decks
26%synergy
Archon of Sun's Grace
26%inclusion10 decks39 decks
21%synergy
Sage of Mysteries
26%inclusion10 decks39 decks
25%synergy
Moon-Blessed Cleric
18%inclusion7 decks39 decks
13%synergy
Ghostly Dancers
18%inclusion7 decks39 decks
15%synergy
Abdel Adrian, Gorion's Ward
18%inclusion7 decks39 decks
16%synergy
Mindwrack Harpy
18%inclusion7 decks39 decks
18%synergy
Witch Enchanter
15%inclusion6 decks39 decks
8%synergy
Lotho, Corrupt Shirriff
15%inclusion6 decks39 decks
-1%synergy
Silent Hallcreeper
15%inclusion6 decks39 decks
11%synergy
Enduring Curiosity
15%inclusion6 decks39 decks
8%synergy
Valley Floodcaller
13%inclusion5 decks39 decks
9%synergy
Balemurk Leech
13%inclusion5 decks39 decks
12%synergy
Nashi, Searcher in the Dark
13%inclusion5 decks39 decks
12%synergy
Aminatou, Veil Piercer
13%inclusion5 decks39 decks
11%synergy
Emet-Selch of the Third Seat
10%inclusion3 decks29 decks
1%synergy
Summon: Yojimbo
10%inclusion3 decks29 decks
9%synergy
Esper Sentinel
10%inclusion4 decks39 decks
-17%synergy
Overlord of the Mistmoors
10%inclusion4 decks39 decks
8%synergy
Ancient Cellarspawn
10%inclusion4 decks39 decks
7%synergy
Alseid of Life's Bounty
10%inclusion4 decks39 decks
9%synergy
Ledger Shredder
10%inclusion4 decks39 decks
1%synergy
Starnheim Courser
7.7%inclusion3 decks39 decks
4%synergy
Claim Jumper
7.7%inclusion3 decks39 decks
7%synergy
Athreos, Shroud-Veiled
7.7%inclusion3 decks39 decks
3%synergy
Gremlin Tamer
7.7%inclusion3 decks39 decks
7%synergy
Archaeomancer
7.7%inclusion3 decks39 decks
5%synergy
Laboratory Maniac
7.7%inclusion3 decks39 decks
4%synergy
Aura Thief
7.7%inclusion3 decks39 decks
7%synergy
Hullbreaker Horror
7.7%inclusion3 decks39 decks
2%synergy
Summon: Primal Odin
6.9%inclusion2 decks29 decks
3%synergy
High Fae Trickster
5.4%inclusion2 decks37 decks
1%synergy
Avacyn, Angel of Hope
5.1%inclusion2 decks39 decks
2%synergy
The Mindskinner
5.1%inclusion2 decks39 decks
4%synergy
Eidolon of Rhetoric
5.1%inclusion2 decks39 decks
3%synergy
Gray Merchant of Asphodel
5.1%inclusion2 decks39 decks
0%synergy
Lurrus of the Dream-Den
5.1%inclusion2 decks39 decks
4%synergy
Soaring Lightbringer
5.1%inclusion2 decks39 decks
0%synergy
Hedron Crab
5.1%inclusion2 decks39 decks
5%synergy
Windborn Muse
5.1%inclusion2 decks39 decks
3%synergy
Ruin Crab
5.1%inclusion2 decks39 decks
4%synergy
Instants
Counterspell
44%inclusion17 decks39 decks
2%synergy
Swords to Plowshares
36%inclusion14 decks39 decks
-32%synergy
Entomb
33%inclusion13 decks39 decks
26%synergy
An Offer You Can't Refuse
31%inclusion12 decks39 decks
4%synergy
Path to Exile
31%inclusion12 decks39 decks
-11%synergy
Dovin's Veto
26%inclusion10 decks39 decks
1%synergy
Dark Ritual
23%inclusion9 decks39 decks
4%synergy
Arcane Denial
23%inclusion9 decks39 decks
3%synergy
Thirst for Meaning
18%inclusion7 decks39 decks
16%synergy
Void Rend
18%inclusion7 decks39 decks
-16%synergy
Swan Song
18%inclusion7 decks39 decks
-1%synergy
Anguished Unmaking
18%inclusion7 decks39 decks
-7%synergy
Sink into Stupor
18%inclusion7 decks39 decks
5%synergy
Inkshield
18%inclusion7 decks39 decks
9%synergy
Generous Gift
18%inclusion7 decks39 decks
3%synergy
Frantic Search
15%inclusion6 decks39 decks
-2%synergy
Dawn's Truce
15%inclusion6 decks39 decks
11%synergy
Mana Drain
15%inclusion6 decks39 decks
-2%synergy
Otherworldly Gaze
15%inclusion6 decks39 decks
13%synergy
Fact or Fiction
13%inclusion5 decks39 decks
9%synergy
Faithful Mending
13%inclusion5 decks39 decks
9%synergy
Fell the Profane
7.7%inclusion3 decks39 decks
-1%synergy
Negate
7.7%inclusion3 decks39 decks
-9%synergy
Brainstorm
7.7%inclusion3 decks39 decks
-10%synergy
Permission Denied
7.7%inclusion3 decks39 decks
5%synergy
Deadly Rollick
5.1%inclusion2 decks39 decks
-9%synergy
Muddle the Mixture
5.1%inclusion2 decks39 decks
1%synergy
Lim-Dûl's Vault
5.1%inclusion2 decks39 decks
2%synergy
Flare of Denial
5.1%inclusion2 decks39 decks
3%synergy
Consider
5.1%inclusion2 decks39 decks
3%synergy
Flare of Fortitude
5.1%inclusion2 decks39 decks
3%synergy
Angel's Grace
5.1%inclusion2 decks39 decks
2%synergy
Strix Serenade
5.1%inclusion2 decks39 decks
1%synergy
Thought Scour
5.1%inclusion2 decks39 decks
4%synergy
Disallow
5.1%inclusion2 decks39 decks
2%synergy
Tale's End
5.1%inclusion2 decks39 decks
4%synergy
Perplex
5.1%inclusion2 decks39 decks
4%synergy
Force of Will
5.1%inclusion2 decks39 decks
-8%synergy
Waterlogged Teachings
5.1%inclusion2 decks39 decks
1%synergy
Long River's Pull
5.1%inclusion2 decks39 decks
4%synergy
Don't Make a Sound
5.1%inclusion2 decks39 decks
5%synergy
Sorceries
Singularity Rupture
26%inclusion7 decks27 decks
24%synergy
Damn
26%inclusion10 decks39 decks
5%synergy
Windfall
23%inclusion9 decks39 decks
9%synergy
Glimpse the Unthinkable
21%inclusion8 decks39 decks
20%synergy
Dance of the Manse
21%inclusion8 decks39 decks
17%synergy
Resurgent Belief
18%inclusion7 decks39 decks
16%synergy
Idyllic Tutor
18%inclusion7 decks39 decks
14%synergy
Redress Fate
15%inclusion6 decks39 decks
9%synergy
Space-Time Anomaly
15%inclusion4 decks27 decks
13%synergy
Open the Vaults
13%inclusion5 decks39 decks
11%synergy
Time Wipe
13%inclusion5 decks39 decks
6%synergy
Replenish
13%inclusion5 decks39 decks
11%synergy
Reanimate
13%inclusion5 decks39 decks
-3%synergy
Toxic Deluge
13%inclusion5 decks39 decks
-7%synergy
Supreme Verdict
10%inclusion4 decks39 decks
-5%synergy
Extinguish All Hope
10%inclusion4 decks39 decks
9%synergy
Traumatize
10%inclusion4 decks39 decks
10%synergy
Austere Command
7.7%inclusion3 decks39 decks
-1%synergy
Farewell
7.7%inclusion3 decks39 decks
-5%synergy
Ponder
5.1%inclusion2 decks39 decks
-4%synergy
Incarnation Technique
5.1%inclusion2 decks39 decks
4%synergy
Unmarked Grave
5.1%inclusion2 decks39 decks
4%synergy
Ondu Inversion
5.1%inclusion2 decks39 decks
4%synergy
Wrath of God
5.1%inclusion2 decks39 decks
1%synergy
Terminus
5.1%inclusion2 decks39 decks
1%synergy
Sea Gate Restoration
5.1%inclusion2 decks39 decks
2%synergy
Cut Your Losses
5.1%inclusion2 decks39 decks
5%synergy
Cleansing Meditation
5.1%inclusion2 decks39 decks
5%synergy
Demonic Counsel
5.1%inclusion2 decks39 decks
4%synergy
Diresight
5.1%inclusion2 decks39 decks
5%synergy
Preordain
5.1%inclusion2 decks39 decks
0%synergy
Damnation
5.1%inclusion2 decks39 decks
2%synergy
Promise of Loyalty
5.1%inclusion2 decks39 decks
1%synergy
Notion Rain
5.1%inclusion2 decks39 decks
5%synergy
Utility Artifacts
Wayfarer's Bauble
18%inclusion7 decks39 decks
10%synergy
Mesmeric Orb
15%inclusion6 decks39 decks
14%synergy
Perpetual Timepiece
7.7%inclusion3 decks39 decks
7%synergy
Lightning Greaves
7.7%inclusion3 decks39 decks
-15%synergy
Cloud Key
5.1%inclusion2 decks39 decks
2%synergy
Swiftfoot Boots
5.1%inclusion2 decks39 decks
-19%synergy
Enchantments
Solitary Confinement
49%inclusion19 decks39 decks
47%synergy
Blind Obedience
46%inclusion18 decks39 decks
34%synergy
Necromancy
46%inclusion18 decks39 decks
42%synergy
Stillness in Motion
43%inclusion13 decks30 decks
43%synergy
Amphibian Downpour
41%inclusion16 decks39 decks
36%synergy
Seal of Cleansing
41%inclusion16 decks39 decks
40%synergy
The Tale of Tamiyo
36%inclusion14 decks39 decks
35%synergy
Phyrexian Arena
36%inclusion14 decks39 decks
22%synergy
Leyline of Anticipation
33%inclusion13 decks39 decks
29%synergy
Dance of the Dead
31%inclusion12 decks39 decks
29%synergy
Cacophony Unleashed
31%inclusion12 decks39 decks
29%synergy
Copy Enchantment
31%inclusion12 decks39 decks
26%synergy
Starfield of Nyx
31%inclusion12 decks39 decks
27%synergy
Greater Auramancy
31%inclusion12 decks39 decks
26%synergy
Court of Cunning
28%inclusion11 decks39 decks
27%synergy
Out of the Tombs
28%inclusion11 decks39 decks
28%synergy
Monologue Tax
28%inclusion11 decks39 decks
22%synergy
Secret Arcade // Dusty Parlor
28%inclusion11 decks39 decks
23%synergy
Darksteel Mutation
26%inclusion10 decks39 decks
19%synergy
Sigil of the Empty Throne
26%inclusion10 decks39 decks
20%synergy
Touch the Spirit Realm
26%inclusion10 decks39 decks
23%synergy
Teval's Judgment
23%inclusion7 decks30 decks
23%synergy
Imprisoned in the Moon
23%inclusion9 decks39 decks
17%synergy
Seal of Removal
23%inclusion9 decks39 decks
22%synergy
Collective Restraint
21%inclusion8 decks39 decks
20%synergy
Authority of the Consuls
21%inclusion8 decks39 decks
9%synergy
All That Glitters
21%inclusion8 decks39 decks
12%synergy
Court of Vantress
21%inclusion8 decks39 decks
18%synergy
Static Prison
21%inclusion8 decks39 decks
20%synergy
Black Market Connections
21%inclusion8 decks39 decks
6%synergy
Aura of Silence
21%inclusion8 decks39 decks
17%synergy
Chronic Flooding
18%inclusion7 decks39 decks
18%synergy
Enchanted Evening
18%inclusion7 decks39 decks
16%synergy
Oubliette
18%inclusion7 decks39 decks
16%synergy
Land Tax
18%inclusion7 decks39 decks
12%synergy
Ethereal Armor
18%inclusion7 decks39 decks
13%synergy
The Meathook Massacre
15%inclusion6 decks39 decks
12%synergy
Shark Typhoon
15%inclusion6 decks39 decks
10%synergy
Sheltered by Ghosts
15%inclusion6 decks39 decks
13%synergy
Trouble in Pairs
15%inclusion6 decks39 decks
10%synergy
Smuggler's Share
13%inclusion5 decks39 decks
11%synergy
Dissipation Field
13%inclusion5 decks39 decks
12%synergy
Unable to Scream
13%inclusion5 decks39 decks
12%synergy
Tinybones Joins Up
13%inclusion5 decks39 decks
12%synergy
Omen of the Sea
13%inclusion5 decks39 decks
12%synergy
Soul Snare
13%inclusion5 decks39 decks
12%synergy
Seal of Doom
13%inclusion5 decks39 decks
13%synergy
Timely Ward
13%inclusion5 decks39 decks
8%synergy
Restricted Office // Lecture Hall
13%inclusion5 decks39 decks
11%synergy
No Mercy
13%inclusion5 decks39 decks
10%synergy
Battles
Invasion of Theros
7.7%inclusion3 decks39 decks
6%synergy
Planeswalkers
Ashiok, Dream Render
5.1%inclusion2 decks39 decks
4%synergy
Narset, Parter of Veils
5.1%inclusion2 decks39 decks
1%synergy
Utility Lands
Hall of Heliod's Generosity
62%inclusion24 decks39 decks
48%synergy
Bojuka Bog
36%inclusion14 decks39 decks
9%synergy
Otawara, Soaring City
23%inclusion9 decks39 decks
4%synergy
Cephalid Coliseum
18%inclusion7 decks39 decks
14%synergy
Command Beacon
15%inclusion6 decks39 decks
13%synergy
Takenuma, Abandoned Mire
13%inclusion5 decks39 decks
6%synergy
Urborg, Tomb of Yawgmoth
13%inclusion5 decks39 decks
0%synergy
Ishgard, the Holy See
10%inclusion3 decks29 decks
7%synergy
Geier Reach Sanitarium
10%inclusion4 decks39 decks
6%synergy
Reliquary Tower
10%inclusion4 decks39 decks
-23%synergy
Mystic Sanctuary
7.7%inclusion3 decks39 decks
4%synergy
Emergence Zone
7.7%inclusion3 decks39 decks
6%synergy
Temple of the False God
7.7%inclusion3 decks39 decks
0%synergy
Roadside Reliquary
5.1%inclusion2 decks39 decks
5%synergy
Serra's Sanctum
5.1%inclusion2 decks39 decks
3%synergy
Maze of Ith
5.1%inclusion2 decks39 decks
2%synergy
Halimar Depths
5.1%inclusion2 decks39 decks
0%synergy
Nephalia Drownyard
5.1%inclusion2 decks39 decks
5%synergy
Eiganjo, Seat of the Empire
5.1%inclusion2 decks39 decks
0%synergy
Rogue's Passage
5.1%inclusion2 decks39 decks
-4%synergy
Mana Artifacts
Arcane Signet
82%inclusion32 decks39 decks
-6%synergy
Sol Ring
82%inclusion32 decks39 decks
-8%synergy
Talisman of Hierarchy
59%inclusion23 decks39 decks
16%synergy
Talisman of Progress
56%inclusion22 decks39 decks
13%synergy
Talisman of Dominance
56%inclusion22 decks39 decks
7%synergy
Azorius Signet
38%inclusion15 decks39 decks
6%synergy
Fellwar Stone
36%inclusion14 decks39 decks
2%synergy
Dimir Signet
33%inclusion13 decks39 decks
1%synergy
Orzhov Signet
28%inclusion11 decks39 decks
-6%synergy
Mind Stone
15%inclusion6 decks39 decks
2%synergy
Thought Vessel
10%inclusion4 decks39 decks
-14%synergy
Commander's Sphere
5.1%inclusion2 decks39 decks
-14%synergy
Coveted Jewel
5.1%inclusion2 decks39 decks
4%synergy
Hourglass of the Lost
5.1%inclusion2 decks39 decks
5%synergy
Lands
Island
100%inclusion39 decks39 decks
7%synergy
Command Tower
97%inclusion38 decks39 decks
5%synergy
Plains
97%inclusion38 decks39 decks
6%synergy
Swamp
95%inclusion37 decks39 decks
4%synergy
Arcane Sanctum
54%inclusion21 decks39 decks
-1%synergy
Adarkar Wastes
54%inclusion21 decks39 decks
23%synergy
Hallowed Fountain
54%inclusion21 decks39 decks
5%synergy
Caves of Koilos
51%inclusion20 decks39 decks
16%synergy
Watery Grave
51%inclusion20 decks39 decks
2%synergy
Exotic Orchard
49%inclusion19 decks39 decks
-10%synergy
Godless Shrine
49%inclusion19 decks39 decks
-1%synergy
Isolated Chapel
49%inclusion19 decks39 decks
10%synergy
Glacial Fortress
46%inclusion18 decks39 decks
6%synergy
Drowned Catacomb
46%inclusion18 decks39 decks
11%synergy
Underground River
46%inclusion18 decks39 decks
14%synergy
Flooded Strand
46%inclusion18 decks39 decks
8%synergy
Polluted Delta
44%inclusion17 decks39 decks
6%synergy
Sea of Clouds
38%inclusion15 decks39 decks
3%synergy
Raffine's Tower
38%inclusion15 decks39 decks
-3%synergy
Meticulous Archive
38%inclusion15 decks39 decks
25%synergy
Contaminated Landscape
36%inclusion14 decks39 decks
21%synergy
Prairie Stream
36%inclusion14 decks39 decks
-5%synergy
Marsh Flats
36%inclusion14 decks39 decks
0%synergy
Vault of Champions
36%inclusion14 decks39 decks
3%synergy
Undercity Sewers
33%inclusion13 decks39 decks
19%synergy
Valgavoth's Lair
33%inclusion13 decks39 decks
30%synergy
Morphic Pool
33%inclusion13 decks39 decks
-1%synergy
Sunken Hollow
33%inclusion13 decks39 decks
-6%synergy
Azorius Chancery
31%inclusion12 decks39 decks
16%synergy
Shadowy Backstreet
31%inclusion12 decks39 decks
18%synergy
Evolving Wilds
31%inclusion12 decks39 decks
6%synergy
Terramorphic Expanse
28%inclusion11 decks39 decks
11%synergy
Tainted Field
28%inclusion11 decks39 decks
21%synergy
Skycloud Expanse
28%inclusion11 decks39 decks
13%synergy
Deserted Beach
28%inclusion11 decks39 decks
7%synergy
Fabled Passage
23%inclusion9 decks39 decks
16%synergy
Dimir Aqueduct
23%inclusion9 decks39 decks
9%synergy
Tainted Isle
21%inclusion8 decks39 decks
14%synergy
Darkwater Catacombs
21%inclusion8 decks39 decks
6%synergy
Shipwreck Marsh
21%inclusion8 decks39 decks
0%synergy
Obscura Storefront
21%inclusion8 decks39 decks
10%synergy
Temple of Deceit
18%inclusion7 decks39 decks
0%synergy
Fetid Heath
18%inclusion7 decks39 decks
6%synergy
Port Town
18%inclusion7 decks39 decks
1%synergy
Temple of Enlightenment
18%inclusion7 decks39 decks
1%synergy
Orzhov Basilica
18%inclusion7 decks39 decks
2%synergy
Sink into Stupor
18%inclusion7 decks39 decks
5%synergy
Temple of Silence
18%inclusion7 decks39 decks
-2%synergy
Floodfarm Verge
18%inclusion7 decks39 decks
7%synergy
Witch Enchanter
15%inclusion6 decks39 decks
8%synergy