The Master of Keys (Commander) - Topdeck

The Master of Keys
Rank #309
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Background image for What if Thassa's Oracle Were Banned?
Harvey McGuinness
Sep 23, 2025
Harvey McGuinness
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.
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Utility Lands
Mana Artifacts
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Secret Arcade // Dusty Parlor
87%inclusion20 decks23 decks
82%synergy
Demon of Fate's Design
87%inclusion20 decks23 decks
81%synergy
Ondu Spiritdancer
87%inclusion20 decks23 decks
81%synergy
Hall of Heliod's Generosity
91%inclusion21 decks23 decks
78%synergy
Moon-Blessed Cleric
83%inclusion19 decks23 decks
78%synergy
Sphere of Safety
87%inclusion20 decks23 decks
78%synergy
Fear of Sleep Paralysis
83%inclusion19 decks23 decks
77%synergy
Doomwake Giant
83%inclusion19 decks23 decks
77%synergy
Starfield Mystic
83%inclusion19 decks23 decks
76%synergy
Mesa Enchantress
83%inclusion19 decks23 decks
74%synergy
Top Cards
Mirrormade
83%inclusion19 decks23 decks
73%synergy
Swords to Plowshares
83%inclusion19 decks23 decks
14%synergy
Brainstorm
78%inclusion18 decks23 decks
61%synergy
Soaring Lightbringer
78%inclusion18 decks23 decks
73%synergy
Shark Typhoon
78%inclusion18 decks23 decks
72%synergy
Arcane Denial
78%inclusion18 decks23 decks
58%synergy
Ponder
74%inclusion17 decks23 decks
65%synergy
Telling Time
74%inclusion17 decks23 decks
72%synergy
Sigil of the Empty Throne
74%inclusion17 decks23 decks
68%synergy
Timely Ward
74%inclusion17 decks23 decks
69%synergy
Game Changers
Smothering Tithe
39%inclusion9 decks23 decks
7%synergy
Rhystic Study
26%inclusion6 decks23 decks
-6%synergy
Enlightened Tutor
17%inclusion4 decks23 decks
-3%synergy
Vampiric Tutor
17%inclusion4 decks23 decks
0%synergy
Thassa's Oracle
13%inclusion3 decks23 decks
3%synergy
Ancient Tomb
8.7%inclusion2 decks23 decks
-5%synergy
Consecrated Sphinx
8.7%inclusion2 decks23 decks
2%synergy
Serra's Sanctum
8.7%inclusion2 decks23 decks
7%synergy
Demonic Tutor
8.7%inclusion2 decks23 decks
-13%synergy
Cyclonic Rift
8.7%inclusion2 decks23 decks
-16%synergy
Creatures
Athreos, Shroud-Veiled
74%inclusion17 decks23 decks
69%synergy
Aminatou, Veil Piercer
74%inclusion17 decks23 decks
73%synergy
Ancient Cellarspawn
65%inclusion15 decks23 decks
62%synergy
Archetype of Imagination
61%inclusion14 decks23 decks
56%synergy
Auramancer
61%inclusion14 decks23 decks
58%synergy
Nightmare Shepherd
57%inclusion13 decks23 decks
54%synergy
Prognostic Sphinx
52%inclusion12 decks23 decks
51%synergy
Arvinox, the Mind Flail
52%inclusion12 decks23 decks
50%synergy
Verge Rangers
52%inclusion12 decks23 decks
51%synergy
Metamorphosis Fanatic
48%inclusion11 decks23 decks
43%synergy
Solemn Simulacrum
43%inclusion10 decks23 decks
28%synergy
Inquisitive Glimmer
39%inclusion9 decks23 decks
31%synergy
Dream Eater
39%inclusion9 decks23 decks
39%synergy
Phenomenon Investigators
39%inclusion9 decks23 decks
39%synergy
Zur, Eternal Schemer
35%inclusion8 decks23 decks
32%synergy
Burnished Hart
30%inclusion7 decks23 decks
27%synergy
Zur the Enchanter
26%inclusion6 decks23 decks
21%synergy
Victor, Valgavoth's Seneschal
22%inclusion5 decks23 decks
20%synergy
Ghostly Dancers
22%inclusion5 decks23 decks
19%synergy
Curator of Destinies
20%inclusion1 decks5 decks
19%synergy
Gravebreaker Lamia
17%inclusion4 decks23 decks
16%synergy
Fear of Surveillance
17%inclusion4 decks23 decks
17%synergy
Heliod, the Radiant Dawn
17%inclusion4 decks23 decks
14%synergy
Entity Tracker
17%inclusion4 decks23 decks
11%synergy
Fear of Infinity
13%inclusion3 decks23 decks
12%synergy
Displacer Kitten
13%inclusion3 decks23 decks
6%synergy
Overlord of the Floodpits
13%inclusion3 decks23 decks
9%synergy
Archon of Sun's Grace
13%inclusion3 decks23 decks
8%synergy
Esper Sentinel
13%inclusion3 decks23 decks
-15%synergy
Fear of Impostors
13%inclusion3 decks23 decks
12%synergy
Overlord of the Balemurk
13%inclusion3 decks23 decks
11%synergy
Silent Hallcreeper
13%inclusion3 decks23 decks
9%synergy
Skullsnap Nuisance
13%inclusion3 decks23 decks
13%synergy
Nashi, Searcher in the Dark
13%inclusion3 decks23 decks
13%synergy
Grim Guardian
13%inclusion3 decks23 decks
10%synergy
Ledger Shredder
13%inclusion3 decks23 decks
4%synergy
Fear of Isolation
8.7%inclusion2 decks23 decks
8%synergy
Scrabbling Skullcrab
8.7%inclusion2 decks23 decks
8%synergy
Lurrus of the Dream-Den
8.7%inclusion2 decks23 decks
7%synergy
Enduring Tenacity
8.7%inclusion2 decks23 decks
1%synergy
Spirited Companion
8.7%inclusion2 decks23 decks
7%synergy
Enduring Curiosity
8.7%inclusion2 decks23 decks
1%synergy
Appendage Amalgam
8.7%inclusion2 decks23 decks
9%synergy
Balemurk Leech
8.7%inclusion2 decks23 decks
8%synergy
Abdel Adrian, Gorion's Ward
8.7%inclusion2 decks23 decks
7%synergy
Instants
Otherworldly Gaze
74%inclusion17 decks23 decks
72%synergy
Return to Dust
61%inclusion14 decks23 decks
57%synergy
Inkshield
61%inclusion14 decks23 decks
52%synergy
Thirst for Meaning
57%inclusion13 decks23 decks
55%synergy
Utter End
52%inclusion12 decks23 decks
45%synergy
Consider
26%inclusion6 decks23 decks
24%synergy
Mana Drain
13%inclusion3 decks23 decks
-4%synergy
Counterspell
13%inclusion3 decks23 decks
-28%synergy
Entomb
8.7%inclusion2 decks23 decks
2%synergy
Dawn's Truce
8.7%inclusion2 decks23 decks
4%synergy
Curate
8.7%inclusion2 decks23 decks
8%synergy
Silence
8.7%inclusion2 decks23 decks
-2%synergy
Sinister Sabotage
8.7%inclusion2 decks23 decks
8%synergy
Demonic Consultation
8.7%inclusion2 decks23 decks
0%synergy
Mystical Tutor
8.7%inclusion2 decks23 decks
-3%synergy
Sorceries
Redress Fate
70%inclusion16 decks23 decks
63%synergy
Diabolic Vision
65%inclusion15 decks23 decks
63%synergy
Time Wipe
61%inclusion14 decks23 decks
54%synergy
Portent
61%inclusion14 decks23 decks
57%synergy
Terminus
57%inclusion13 decks23 decks
52%synergy
Aminatou's Augury
48%inclusion11 decks23 decks
46%synergy
Read the Bones
43%inclusion10 decks23 decks
39%synergy
Entreat the Angels
35%inclusion8 decks23 decks
33%synergy
Sevinne's Reclamation
17%inclusion4 decks23 decks
9%synergy
Resurgent Belief
13%inclusion3 decks23 decks
11%synergy
Dance of the Manse
13%inclusion3 decks23 decks
9%synergy
Extinguish All Hope
8.7%inclusion2 decks23 decks
7%synergy
Utility Artifacts
Brainstone
57%inclusion13 decks23 decks
55%synergy
Sensei's Divining Top
26%inclusion6 decks23 decks
16%synergy
Scroll Rack
8.7%inclusion2 decks23 decks
6%synergy
Enchantments
One with the Multiverse
70%inclusion16 decks23 decks
65%synergy
Monologue Tax
70%inclusion16 decks23 decks
63%synergy
Extravagant Replication
65%inclusion15 decks23 decks
60%synergy
Spirit-Sister's Call
65%inclusion15 decks23 decks
64%synergy
Cramped Vents // Access Maze
61%inclusion14 decks23 decks
58%synergy
The Eldest Reborn
61%inclusion14 decks23 decks
58%synergy
Cast Out
61%inclusion14 decks23 decks
58%synergy
Life Insurance
43%inclusion10 decks23 decks
42%synergy
Bottomless Pool // Locker Room
43%inclusion10 decks23 decks
41%synergy
Starfield of Nyx
35%inclusion8 decks23 decks
31%synergy
Necromancy
26%inclusion6 decks23 decks
21%synergy
Animate Dead
26%inclusion6 decks23 decks
16%synergy
Ripples of Undeath
22%inclusion5 decks23 decks
19%synergy
Estrid's Invocation
22%inclusion5 decks23 decks
17%synergy
Mystic Remora
22%inclusion5 decks23 decks
0%synergy
Valkyrie's Call
20%inclusion1 decks5 decks
19%synergy
Blind Obedience
17%inclusion4 decks23 decks
5%synergy
Omniscience
17%inclusion4 decks23 decks
14%synergy
Mirror Room // Fractured Realm
17%inclusion4 decks23 decks
15%synergy
Ghostly Prison
17%inclusion4 decks23 decks
-4%synergy
Propaganda
17%inclusion4 decks23 decks
-9%synergy
Grasp of Fate
13%inclusion3 decks23 decks
7%synergy
Cacophony Unleashed
13%inclusion3 decks23 decks
11%synergy
Penance
13%inclusion3 decks23 decks
12%synergy
Cemetery Tampering
13%inclusion3 decks23 decks
12%synergy
Leyline of Anticipation
13%inclusion3 decks23 decks
9%synergy
Dress Down
13%inclusion3 decks23 decks
11%synergy
Dazzling Theater // Prop Room
13%inclusion3 decks23 decks
12%synergy
Black Market Connections
13%inclusion3 decks23 decks
-1%synergy
Land Tax
13%inclusion3 decks23 decks
7%synergy
Hallowed Haunting
13%inclusion3 decks23 decks
11%synergy
Greater Auramancy
13%inclusion3 decks23 decks
9%synergy
Trouble in Pairs
13%inclusion3 decks23 decks
8%synergy
Search for Azcanta
13%inclusion3 decks23 decks
12%synergy
Darksteel Mutation
8.7%inclusion2 decks23 decks
2%synergy
Omen of the Dead
8.7%inclusion2 decks23 decks
9%synergy
The Meathook Massacre
8.7%inclusion2 decks23 decks
5%synergy
Underwater Tunnel // Slimy Aquarium
8.7%inclusion2 decks23 decks
8%synergy
Case of the Shifting Visage
8.7%inclusion2 decks23 decks
9%synergy
Touch the Spirit Realm
8.7%inclusion2 decks23 decks
6%synergy
Curse of Unbinding
8.7%inclusion2 decks23 decks
8%synergy
Enhanced Surveillance
8.7%inclusion2 decks23 decks
8%synergy
Storm of Saruman
8.7%inclusion2 decks23 decks
7%synergy
Polluted Cistern // Dim Oubliette
8.7%inclusion2 decks23 decks
8%synergy
Mind's Dilation
8.7%inclusion2 decks23 decks
6%synergy
Seal of Removal
8.7%inclusion2 decks23 decks
8%synergy
Planeswalkers
Teferi, Time Raveler
17%inclusion4 decks23 decks
9%synergy
Jace, the Mind Sculptor
8.7%inclusion2 decks23 decks
8%synergy
Utility Lands
Bojuka Bog
70%inclusion16 decks23 decks
42%synergy
Halimar Depths
70%inclusion16 decks23 decks
65%synergy
Spymaster's Vault
8.7%inclusion2 decks23 decks
6%synergy
Otawara, Soaring City
8.7%inclusion2 decks23 decks
-10%synergy
Mana Artifacts
Sol Ring
100%inclusion23 decks23 decks
10%synergy
Arcane Signet
96%inclusion22 decks23 decks
8%synergy
Mind Stone
70%inclusion16 decks23 decks
57%synergy
Orzhov Signet
70%inclusion16 decks23 decks
35%synergy
Azorius Signet
70%inclusion16 decks23 decks
37%synergy
Commander's Sphere
61%inclusion14 decks23 decks
42%synergy
Talisman of Progress
8.7%inclusion2 decks23 decks
-34%synergy
Lotus Petal
8.7%inclusion2 decks23 decks
-2%synergy
Talisman of Dominance
8.7%inclusion2 decks23 decks
-40%synergy
Talisman of Hierarchy
8.7%inclusion2 decks23 decks
-35%synergy
Lands
Island
96%inclusion22 decks23 decks
3%synergy
Plains
96%inclusion22 decks23 decks
4%synergy
Command Tower
91%inclusion21 decks23 decks
-1%synergy
Swamp
91%inclusion21 decks23 decks
0%synergy
Temple of Deceit
83%inclusion19 decks23 decks
64%synergy
Temple of Enlightenment
83%inclusion19 decks23 decks
66%synergy
Temple of Silence
78%inclusion18 decks23 decks
59%synergy
Caves of Koilos
74%inclusion17 decks23 decks
39%synergy
Terramorphic Expanse
70%inclusion16 decks23 decks
53%synergy
Tainted Field
70%inclusion16 decks23 decks
63%synergy
Arcane Sanctum
70%inclusion16 decks23 decks
15%synergy
Underground River
70%inclusion16 decks23 decks
37%synergy
Adarkar Wastes
70%inclusion16 decks23 decks
39%synergy
Tainted Isle
65%inclusion15 decks23 decks
59%synergy
Azorius Chancery
65%inclusion15 decks23 decks
51%synergy
Evolving Wilds
65%inclusion15 decks23 decks
40%synergy
Orzhov Basilica
65%inclusion15 decks23 decks
49%synergy
Obscura Storefront
65%inclusion15 decks23 decks
55%synergy
Dimir Aqueduct
61%inclusion14 decks23 decks
47%synergy
Thriving Isle
61%inclusion14 decks23 decks
56%synergy
Thriving Moor
61%inclusion14 decks23 decks
56%synergy
Thriving Heath
61%inclusion14 decks23 decks
56%synergy
Ash Barrens
48%inclusion11 decks23 decks
37%synergy
Raffine's Tower
30%inclusion7 decks23 decks
-11%synergy
Meticulous Archive
26%inclusion6 decks23 decks
13%synergy
Flooded Strand
22%inclusion5 decks23 decks
-16%synergy
Exotic Orchard
17%inclusion4 decks23 decks
-41%synergy
Marsh Flats
17%inclusion4 decks23 decks
-19%synergy
Polluted Delta
17%inclusion4 decks23 decks
-20%synergy
Tundra
13%inclusion3 decks23 decks
-3%synergy
Undercity Sewers
13%inclusion3 decks23 decks
-1%synergy
Shadowy Backstreet
13%inclusion3 decks23 decks
1%synergy
Prairie Stream
13%inclusion3 decks23 decks
-28%synergy
Valgavoth's Lair
13%inclusion3 decks23 decks
10%synergy
Sea of Clouds
13%inclusion3 decks23 decks
-23%synergy
Godless Shrine
13%inclusion3 decks23 decks
-37%synergy
Scrubland
13%inclusion3 decks23 decks
-3%synergy
Vault of Champions
13%inclusion3 decks23 decks
-20%synergy
Hallowed Fountain
13%inclusion3 decks23 decks
-36%synergy
Watery Grave
13%inclusion3 decks23 decks
-37%synergy
Underground Sea
8.7%inclusion2 decks23 decks
-7%synergy
Morphic Pool
8.7%inclusion2 decks23 decks
-26%synergy
Sunken Hollow
8.7%inclusion2 decks23 decks
-31%synergy
Deserted Beach
8.7%inclusion2 decks23 decks
-12%synergy
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