The Master of Keys (Commander) - cEDH Combo

The Master of Keys
Rank #312
88decks
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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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Wan Shi Tong, Librarian
75%inclusion9 decks12 decks
70%synergy
High Synergy Cards
Abdel Adrian, Gorion's Ward
91%inclusion80 decks88 decks
89%synergy
Animate Dead
99%inclusion87 decks88 decks
89%synergy
Necromancy
93%inclusion82 decks88 decks
89%synergy
Tainted Pact
95%inclusion84 decks88 decks
88%synergy
Dance of the Dead
89%inclusion78 decks88 decks
86%synergy
Entomb
93%inclusion82 decks88 decks
86%synergy
Dress Down
86%inclusion76 decks88 decks
84%synergy
Demonic Consultation
92%inclusion81 decks88 decks
84%synergy
Silence
92%inclusion81 decks88 decks
82%synergy
Flusterstorm
88%inclusion77 decks88 decks
79%synergy
Top Cards
Dark Ritual
98%inclusion86 decks88 decks
78%synergy
Esper Sentinel
97%inclusion85 decks88 decks
69%synergy
Mystic Remora
97%inclusion85 decks88 decks
75%synergy
Grand Abolisher
92%inclusion81 decks88 decks
77%synergy
Swan Song
89%inclusion78 decks88 decks
69%synergy
Orcish Bowmasters
86%inclusion76 decks88 decks
75%synergy
Force of Negation
85%inclusion75 decks88 decks
73%synergy
Mental Misstep
83%inclusion73 decks88 decks
76%synergy
Mindbreak Trap
83%inclusion73 decks88 decks
76%synergy
Pact of Negation
83%inclusion73 decks88 decks
75%synergy
Game Changers
Thassa's Oracle
99%inclusion87 decks88 decks
89%synergy
Rhystic Study
95%inclusion84 decks88 decks
63%synergy
Demonic Tutor
95%inclusion84 decks88 decks
74%synergy
Vampiric Tutor
95%inclusion84 decks88 decks
78%synergy
Mana Vault
94%inclusion83 decks88 decks
85%synergy
Enlightened Tutor
94%inclusion83 decks88 decks
74%synergy
Chrome Mox
94%inclusion83 decks88 decks
85%synergy
Force of Will
92%inclusion81 decks88 decks
79%synergy
Smothering Tithe
91%inclusion80 decks88 decks
59%synergy
Ancient Tomb
91%inclusion80 decks88 decks
78%synergy
Creatures
Valley Floodcaller
81%inclusion71 decks88 decks
76%synergy
Ranger-Captain of Eos
81%inclusion71 decks88 decks
74%synergy
Lotho, Corrupt Shirriff
80%inclusion70 decks88 decks
63%synergy
Displacer Kitten
60%inclusion53 decks88 decks
53%synergy
Voice of Victory
57%inclusion29 decks51 decks
48%synergy
Mockingbird
53%inclusion47 decks88 decks
49%synergy
Archivist of Oghma
52%inclusion46 decks88 decks
45%synergy
Opposition Agent
49%inclusion43 decks88 decks
40%synergy
Hullbreaker Horror
49%inclusion43 decks88 decks
43%synergy
Drannith Magistrate
41%inclusion36 decks88 decks
33%synergy
Lurrus of the Dream-Den
39%inclusion34 decks88 decks
37%synergy
Auriok Salvagers
35%inclusion31 decks88 decks
35%synergy
Tataru Taru
31%inclusion11 decks36 decks
22%synergy
Phyrexian Metamorph
30%inclusion26 decks88 decks
21%synergy
Faerie Mastermind
30%inclusion26 decks88 decks
20%synergy
Hedron Crab
27%inclusion24 decks88 decks
27%synergy
Ledger Shredder
25%inclusion22 decks88 decks
16%synergy
Psychic Frog
22%inclusion19 decks88 decks
15%synergy
Talion, the Kindly Lord
20%inclusion18 decks88 decks
12%synergy
Pollywog Prodigy
18%inclusion16 decks88 decks
14%synergy
Ghostly Pilferer
18%inclusion16 decks88 decks
11%synergy
Leonin Relic-Warder
13%inclusion11 decks88 decks
12%synergy
Dauthi Voidwalker
11%inclusion10 decks88 decks
5%synergy
Emet-Selch of the Third Seat
11%inclusion4 decks36 decks
1%synergy
Snapcaster Mage
10%inclusion9 decks88 decks
8%synergy
Hoarding Broodlord
9.1%inclusion8 decks88 decks
7%synergy
Spellseeker
9.1%inclusion8 decks88 decks
8%synergy
Malevolent Hermit
9.1%inclusion8 decks88 decks
8%synergy
Phantasmal Image
8.0%inclusion7 decks88 decks
5%synergy
Flesh Duplicate
6.8%inclusion6 decks88 decks
6%synergy
High Fae Trickster
6.5%inclusion5 decks77 decks
2%synergy
Volatile Stormdrake
5.7%inclusion5 decks88 decks
4%synergy
Zur the Enchanter
5.7%inclusion5 decks88 decks
0%synergy
Instants
Swords to Plowshares
77%inclusion68 decks88 decks
9%synergy
Intuition
75%inclusion66 decks88 decks
73%synergy
Fierce Guardianship
75%inclusion66 decks88 decks
54%synergy
Borne Upon a Wind
73%inclusion64 decks88 decks
68%synergy
Mystical Tutor
72%inclusion63 decks88 decks
60%synergy
Cabal Ritual
64%inclusion56 decks88 decks
60%synergy
Cyclonic Rift
59%inclusion52 decks88 decks
35%synergy
An Offer You Can't Refuse
55%inclusion48 decks88 decks
28%synergy
Into the Flood Maw
42%inclusion37 decks88 decks
38%synergy
Gifts Ungiven
40%inclusion35 decks88 decks
37%synergy
Chain of Vapor
36%inclusion32 decks88 decks
33%synergy
Mana Drain
33%inclusion29 decks88 decks
15%synergy
Sink into Stupor
31%inclusion27 decks88 decks
18%synergy
Retraction Helix
22%inclusion19 decks88 decks
21%synergy
Brain Freeze
17%inclusion15 decks88 decks
16%synergy
Culling the Weak
17%inclusion15 decks88 decks
15%synergy
Darkblast
16%inclusion14 decks88 decks
16%synergy
Ad Nauseam
16%inclusion14 decks88 decks
13%synergy
Dispel
13%inclusion11 decks88 decks
9%synergy
Banishing Knack
13%inclusion11 decks88 decks
12%synergy
Deadly Rollick
10%inclusion9 decks88 decks
-4%synergy
Path to Exile
10%inclusion9 decks88 decks
-32%synergy
Sacrifice
9.1%inclusion8 decks88 decks
8%synergy
Orim's Chant
9.1%inclusion8 decks88 decks
8%synergy
Dovin's Veto
8.0%inclusion7 decks88 decks
-17%synergy
Counterspell
8.0%inclusion7 decks88 decks
-33%synergy
Saw in Half
8.0%inclusion7 decks88 decks
6%synergy
Lim-Dûl's Vault
6.8%inclusion6 decks88 decks
3%synergy
Strix Serenade
6.8%inclusion6 decks88 decks
3%synergy
Rain of Filth
5.7%inclusion5 decks88 decks
5%synergy
Spell Pierce
5.7%inclusion5 decks88 decks
3%synergy
Sorceries
Imperial Seal
81%inclusion71 decks88 decks
73%synergy
Sevinne's Reclamation
76%inclusion67 decks88 decks
67%synergy
Reanimate
39%inclusion34 decks88 decks
23%synergy
Toxic Deluge
39%inclusion34 decks88 decks
19%synergy
Lively Dirge
30%inclusion26 decks88 decks
28%synergy
Beseech the Mirror
23%inclusion20 decks88 decks
19%synergy
Windfall
22%inclusion19 decks88 decks
8%synergy
Demonic Counsel
22%inclusion19 decks88 decks
20%synergy
Mnemonic Betrayal
17%inclusion15 decks88 decks
14%synergy
Cabal Therapy
15%inclusion13 decks88 decks
15%synergy
Unmarked Grave
11%inclusion10 decks88 decks
10%synergy
Yawgmoth's Will
10%inclusion9 decks88 decks
9%synergy
Praetor's Grasp
10%inclusion9 decks88 decks
7%synergy
Diabolic Intent
8.0%inclusion7 decks88 decks
3%synergy
Gitaxian Probe
5.7%inclusion5 decks88 decks
4%synergy
Utility Artifacts
The One Ring
77%inclusion68 decks88 decks
64%synergy
Wishclaw Talisman
68%inclusion60 decks88 decks
60%synergy
Cursed Totem
13%inclusion11 decks88 decks
10%synergy
Agatha's Soul Cauldron
6.8%inclusion6 decks88 decks
6%synergy
Enchantments
Tinybones Joins Up
69%inclusion61 decks88 decks
68%synergy
Necropotence
69%inclusion61 decks88 decks
62%synergy
Blind Obedience
65%inclusion57 decks88 decks
52%synergy
Touch the Spirit Realm
50%inclusion44 decks88 decks
47%synergy
Amphibian Downpour
45%inclusion40 decks88 decks
41%synergy
Ripples of Undeath
43%inclusion38 decks88 decks
40%synergy
Mirrormade
39%inclusion34 decks88 decks
29%synergy
Copy Artifact
39%inclusion34 decks88 decks
38%synergy
Static Prison
36%inclusion32 decks88 decks
36%synergy
The Meathook Massacre
28%inclusion25 decks88 decks
25%synergy
Steal Enchantment
27%inclusion24 decks88 decks
26%synergy
Founding the Third Path
20%inclusion18 decks88 decks
20%synergy
Counterbalance
18%inclusion16 decks88 decks
16%synergy
Chthonian Nightmare
17%inclusion15 decks88 decks
16%synergy
Chains of Mephistopheles
16%inclusion14 decks88 decks
16%synergy
Copy Enchantment
11%inclusion10 decks88 decks
7%synergy
Trouble in Pairs
11%inclusion10 decks88 decks
6%synergy
Monologue Tax
9.1%inclusion8 decks88 decks
3%synergy
Aura of Silence
9.1%inclusion8 decks88 decks
6%synergy
Leyline of Anticipation
5.7%inclusion5 decks88 decks
1%synergy
Second Chance
5.7%inclusion5 decks88 decks
5%synergy
Planeswalkers
Teferi, Time Raveler
55%inclusion48 decks88 decks
46%synergy
Utility Lands
Otawara, Soaring City
89%inclusion78 decks88 decks
69%synergy
Urza's Saga
39%inclusion34 decks88 decks
27%synergy
Emergence Zone
31%inclusion27 decks88 decks
29%synergy
Minamo, School at Water's Edge
24%inclusion21 decks88 decks
20%synergy
Cephalid Coliseum
23%inclusion20 decks88 decks
19%synergy
Takenuma, Abandoned Mire
13%inclusion11 decks88 decks
6%synergy
City of Traitors
9.1%inclusion8 decks88 decks
8%synergy
Phyrexian Tower
6.8%inclusion6 decks88 decks
3%synergy
Hall of Heliod's Generosity
6.8%inclusion6 decks88 decks
-6%synergy
Mistrise Village
5.9%inclusion3 decks51 decks
2%synergy
Serra's Sanctum
5.7%inclusion5 decks88 decks
4%synergy
Urborg, Tomb of Yawgmoth
5.7%inclusion5 decks88 decks
-8%synergy
Mana Artifacts
Sol Ring
100%inclusion88 decks88 decks
10%synergy
Arcane Signet
98%inclusion86 decks88 decks
10%synergy
Lotus Petal
92%inclusion81 decks88 decks
81%synergy
Talisman of Dominance
85%inclusion75 decks88 decks
36%synergy
Mox Diamond
83%inclusion73 decks88 decks
76%synergy
Fellwar Stone
80%inclusion70 decks88 decks
46%synergy
Mox Opal
76%inclusion67 decks88 decks
67%synergy
Lion's Eye Diamond
67%inclusion59 decks88 decks
65%synergy
Talisman of Progress
58%inclusion51 decks88 decks
15%synergy
Mox Amber
44%inclusion39 decks88 decks
38%synergy
Grim Monolith
34%inclusion30 decks88 decks
31%synergy
Talisman of Hierarchy
33%inclusion29 decks88 decks
-10%synergy
Dimir Signet
6.8%inclusion6 decks88 decks
-25%synergy
Orzhov Signet
5.7%inclusion5 decks88 decks
-28%synergy
Lands
Command Tower
99%inclusion87 decks88 decks
6%synergy
Polluted Delta
97%inclusion85 decks88 decks
59%synergy
Hallowed Fountain
97%inclusion85 decks88 decks
47%synergy
Godless Shrine
95%inclusion84 decks88 decks
45%synergy
Watery Grave
95%inclusion84 decks88 decks
45%synergy
Flooded Strand
94%inclusion83 decks88 decks
56%synergy
Marsh Flats
90%inclusion79 decks88 decks
53%synergy
City of Brass
89%inclusion78 decks88 decks
73%synergy
Gemstone Caverns
88%inclusion77 decks88 decks
80%synergy
Mana Confluence
86%inclusion76 decks88 decks
72%synergy
Tundra
83%inclusion73 decks88 decks
67%synergy
Underground Sea
83%inclusion73 decks88 decks
67%synergy
Scrubland
83%inclusion73 decks88 decks
67%synergy
Bloodstained Mire
83%inclusion73 decks88 decks
72%synergy
Misty Rainforest
77%inclusion68 decks88 decks
66%synergy
Verdant Catacombs
76%inclusion67 decks88 decks
66%synergy
Scalding Tarn
75%inclusion66 decks88 decks
64%synergy
Windswept Heath
73%inclusion64 decks88 decks
63%synergy
Morphic Pool
70%inclusion62 decks88 decks
36%synergy
Exotic Orchard
68%inclusion60 decks88 decks
10%synergy
Arid Mesa
61%inclusion54 decks88 decks
51%synergy
Undercity Sewers
58%inclusion51 decks88 decks
44%synergy
Sea of Clouds
52%inclusion46 decks88 decks
16%synergy
Island
48%inclusion42 decks88 decks
-45%synergy
Vault of Champions
45%inclusion40 decks88 decks
13%synergy
Swamp
43%inclusion38 decks88 decks
-48%synergy
Starting Town
33%inclusion12 decks36 decks
29%synergy
Sink into Stupor
31%inclusion27 decks88 decks
18%synergy
Plains
30%inclusion26 decks88 decks
-62%synergy
Meticulous Archive
22%inclusion19 decks88 decks
8%synergy
Cavern of Souls
20%inclusion18 decks88 decks
14%synergy
Forbidden Orchard
19%inclusion17 decks88 decks
17%synergy
Spire of Industry
16%inclusion14 decks88 decks
7%synergy
Shadowy Backstreet
14%inclusion12 decks88 decks
1%synergy
Underground River
10%inclusion9 decks88 decks
-23%synergy
Gloomlake Verge
10%inclusion9 decks88 decks
-1%synergy
Caves of Koilos
8.0%inclusion7 decks88 decks
-28%synergy
Reflecting Pool
8.0%inclusion7 decks88 decks
0%synergy
Talon Gates of Madara
6.8%inclusion6 decks88 decks
5%synergy
Adarkar Wastes
6.8%inclusion6 decks88 decks
-24%synergy
Glacial Fortress
5.7%inclusion5 decks88 decks
-34%synergy
Prismatic Vista
5.7%inclusion5 decks88 decks
2%synergy
Raffine's Tower
5.7%inclusion5 decks88 decks
-35%synergy
Snow-Covered Swamp
5.7%inclusion5 decks88 decks
3%synergy
Floodfarm Verge
5.7%inclusion5 decks88 decks
-6%synergy
Silent Clearing
5.7%inclusion5 decks88 decks
3%synergy
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