The Master of Keys (Commander) - cEDH Combo

The Master of Keys
Rank #301
91decks
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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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Enchantments
Planeswalkers
Utility Lands
Mana Artifacts
Lands
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Exhibition Tidecaller
30%inclusion3 decks10 decks
30%synergy
Does Machines
6.7%inclusion1 decks15 decks
7%synergy
High Synergy Cards
Necromancy
93%inclusion85 decks91 decks
89%synergy
Tainted Pact
96%inclusion87 decks91 decks
89%synergy
Abdel Adrian, Gorion's Ward
90%inclusion82 decks91 decks
88%synergy
Animate Dead
98%inclusion89 decks91 decks
88%synergy
Dance of the Dead
88%inclusion80 decks91 decks
86%synergy
Entomb
92%inclusion84 decks91 decks
86%synergy
Demonic Consultation
92%inclusion84 decks91 decks
84%synergy
Dress Down
85%inclusion77 decks91 decks
82%synergy
Silence
91%inclusion83 decks91 decks
81%synergy
Flusterstorm
88%inclusion80 decks91 decks
80%synergy
Top Cards
Dark Ritual
97%inclusion88 decks91 decks
77%synergy
Mystic Remora
97%inclusion88 decks91 decks
76%synergy
Esper Sentinel
96%inclusion87 decks91 decks
68%synergy
Swan Song
89%inclusion81 decks91 decks
69%synergy
Grand Abolisher
89%inclusion81 decks91 decks
75%synergy
Force of Negation
86%inclusion78 decks91 decks
74%synergy
Orcish Bowmasters
86%inclusion78 decks91 decks
75%synergy
Mindbreak Trap
84%inclusion76 decks91 decks
77%synergy
Pact of Negation
84%inclusion76 decks91 decks
76%synergy
Mental Misstep
82%inclusion75 decks91 decks
76%synergy
Game Changers
Thassa's Oracle
99%inclusion90 decks91 decks
90%synergy
Demonic Tutor
96%inclusion87 decks91 decks
75%synergy
Vampiric Tutor
96%inclusion87 decks91 decks
79%synergy
Rhystic Study
95%inclusion86 decks91 decks
64%synergy
Mana Vault
95%inclusion86 decks91 decks
86%synergy
Enlightened Tutor
95%inclusion86 decks91 decks
75%synergy
Chrome Mox
95%inclusion86 decks91 decks
85%synergy
Force of Will
92%inclusion84 decks91 decks
80%synergy
Ancient Tomb
91%inclusion83 decks91 decks
79%synergy
Smothering Tithe
90%inclusion82 decks91 decks
59%synergy
Creatures
Valley Floodcaller
80%inclusion73 decks91 decks
76%synergy
Ranger-Captain of Eos
80%inclusion73 decks91 decks
74%synergy
Lotho, Corrupt Shirriff
79%inclusion72 decks91 decks
62%synergy
Wan Shi Tong, Librarian
65%inclusion13 decks20 decks
60%synergy
Displacer Kitten
59%inclusion54 decks91 decks
53%synergy
Voice of Victory
56%inclusion30 decks54 decks
47%synergy
Mockingbird
52%inclusion47 decks91 decks
47%synergy
Hullbreaker Horror
52%inclusion47 decks91 decks
46%synergy
Opposition Agent
48%inclusion44 decks91 decks
40%synergy
Archivist of Oghma
47%inclusion43 decks91 decks
41%synergy
Drannith Magistrate
40%inclusion36 decks91 decks
32%synergy
Lurrus of the Dream-Den
38%inclusion35 decks91 decks
37%synergy
Auriok Salvagers
37%inclusion34 decks91 decks
37%synergy
Tataru Taru
35%inclusion14 decks40 decks
27%synergy
Faerie Mastermind
31%inclusion28 decks91 decks
21%synergy
Phyrexian Metamorph
29%inclusion26 decks91 decks
20%synergy
Ledger Shredder
25%inclusion23 decks91 decks
17%synergy
Hedron Crab
24%inclusion22 decks91 decks
24%synergy
Talion, the Kindly Lord
20%inclusion18 decks91 decks
12%synergy
Pollywog Prodigy
18%inclusion16 decks91 decks
14%synergy
Psychic Frog
18%inclusion16 decks91 decks
10%synergy
Ghostly Pilferer
16%inclusion15 decks91 decks
9%synergy
Leonin Relic-Warder
13%inclusion12 decks91 decks
13%synergy
Dauthi Voidwalker
11%inclusion10 decks91 decks
5%synergy
Snapcaster Mage
10%inclusion9 decks91 decks
8%synergy
Malevolent Hermit
10%inclusion9 decks91 decks
9%synergy
Spellseeker
8.8%inclusion8 decks91 decks
7%synergy
Hoarding Broodlord
7.7%inclusion7 decks91 decks
6%synergy
Abigale, Eloquent First-Year
6.7%inclusion1 decks15 decks
6%synergy
Phantasmal Image
6.6%inclusion6 decks91 decks
4%synergy
High Fae Trickster
6.3%inclusion5 decks80 decks
2%synergy
Volatile Stormdrake
5.5%inclusion5 decks91 decks
4%synergy
Flesh Duplicate
5.5%inclusion5 decks91 decks
5%synergy
Zur the Enchanter
5.5%inclusion5 decks91 decks
0%synergy
Emet-Selch of the Third Seat
5.0%inclusion2 decks40 decks
-4%synergy
Gran-Gran
5.0%inclusion1 decks20 decks
5%synergy
Instants
Swords to Plowshares
76%inclusion69 decks91 decks
8%synergy
Intuition
75%inclusion68 decks91 decks
73%synergy
Fierce Guardianship
74%inclusion67 decks91 decks
53%synergy
Borne Upon a Wind
71%inclusion65 decks91 decks
67%synergy
Mystical Tutor
71%inclusion65 decks91 decks
61%synergy
Cabal Ritual
64%inclusion58 decks91 decks
60%synergy
Cyclonic Rift
59%inclusion54 decks91 decks
36%synergy
An Offer You Can't Refuse
57%inclusion52 decks91 decks
30%synergy
Into the Flood Maw
42%inclusion38 decks91 decks
38%synergy
Chain of Vapor
40%inclusion36 decks91 decks
37%synergy
Gifts Ungiven
38%inclusion35 decks91 decks
36%synergy
Sink into Stupor
34%inclusion31 decks91 decks
21%synergy
Mana Drain
33%inclusion30 decks91 decks
16%synergy
Retraction Helix
24%inclusion22 decks91 decks
23%synergy
Culling the Weak
20%inclusion18 decks91 decks
18%synergy
Brain Freeze
16%inclusion15 decks91 decks
16%synergy
Ad Nauseam
15%inclusion14 decks91 decks
13%synergy
Dispel
14%inclusion13 decks91 decks
11%synergy
Banishing Knack
14%inclusion13 decks91 decks
14%synergy
Darkblast
13%inclusion12 decks91 decks
13%synergy
Orim's Chant
11%inclusion10 decks91 decks
9%synergy
Deadly Rollick
10%inclusion9 decks91 decks
-5%synergy
Path to Exile
10%inclusion9 decks91 decks
-32%synergy
Sacrifice
8.8%inclusion8 decks91 decks
8%synergy
Dovin's Veto
8.8%inclusion8 decks91 decks
-17%synergy
Counterspell
7.7%inclusion7 decks91 decks
-34%synergy
Saw in Half
7.7%inclusion7 decks91 decks
6%synergy
Lim-Dûl's Vault
6.6%inclusion6 decks91 decks
3%synergy
Strix Serenade
6.6%inclusion6 decks91 decks
3%synergy
Muddle the Mixture
5.5%inclusion5 decks91 decks
2%synergy
Angel's Grace
5.5%inclusion5 decks91 decks
3%synergy
Commandeer
5.5%inclusion5 decks91 decks
4%synergy
Spell Pierce
5.5%inclusion5 decks91 decks
3%synergy
Sorceries
Imperial Seal
80%inclusion73 decks91 decks
73%synergy
Sevinne's Reclamation
77%inclusion70 decks91 decks
68%synergy
Toxic Deluge
37%inclusion34 decks91 decks
18%synergy
Reanimate
36%inclusion33 decks91 decks
20%synergy
Lively Dirge
33%inclusion30 decks91 decks
32%synergy
Beseech the Mirror
23%inclusion21 decks91 decks
19%synergy
Windfall
22%inclusion20 decks91 decks
9%synergy
Demonic Counsel
22%inclusion20 decks91 decks
21%synergy
Mnemonic Betrayal
18%inclusion16 decks91 decks
15%synergy
Flash Photography
14%inclusion3 decks22 decks
13%synergy
Cabal Therapy
13%inclusion12 decks91 decks
13%synergy
Praetor's Grasp
12%inclusion11 decks91 decks
9%synergy
Unmarked Grave
11%inclusion10 decks91 decks
10%synergy
Yawgmoth's Will
11%inclusion10 decks91 decks
10%synergy
Diabolic Intent
8.8%inclusion8 decks91 decks
4%synergy
Gitaxian Probe
5.5%inclusion5 decks91 decks
4%synergy
Grim Tutor
5.5%inclusion5 decks91 decks
1%synergy
Utility Artifacts
The One Ring
73%inclusion66 decks91 decks
60%synergy
Wishclaw Talisman
65%inclusion59 decks91 decks
57%synergy
Cursed Totem
12%inclusion11 decks91 decks
10%synergy
Agatha's Soul Cauldron
6.6%inclusion6 decks91 decks
6%synergy
Enchantments
Tinybones Joins Up
70%inclusion64 decks91 decks
69%synergy
Blind Obedience
67%inclusion61 decks91 decks
55%synergy
Necropotence
67%inclusion61 decks91 decks
61%synergy
Touch the Spirit Realm
49%inclusion45 decks91 decks
47%synergy
Amphibian Downpour
46%inclusion42 decks91 decks
42%synergy
Ripples of Undeath
45%inclusion41 decks91 decks
42%synergy
Mirrormade
41%inclusion37 decks91 decks
31%synergy
Copy Artifact
34%inclusion31 decks91 decks
33%synergy
Static Prison
34%inclusion31 decks91 decks
34%synergy
The Meathook Massacre
27%inclusion25 decks91 decks
24%synergy
Steal Enchantment
23%inclusion21 decks91 decks
22%synergy
Counterbalance
19%inclusion17 decks91 decks
17%synergy
Founding the Third Path
19%inclusion17 decks91 decks
19%synergy
Chthonian Nightmare
16%inclusion15 decks91 decks
16%synergy
Chains of Mephistopheles
16%inclusion15 decks91 decks
16%synergy
Copy Enchantment
15%inclusion14 decks91 decks
11%synergy
Trouble in Pairs
11%inclusion10 decks91 decks
6%synergy
Monologue Tax
10%inclusion9 decks91 decks
4%synergy
Aura of Silence
8.8%inclusion8 decks91 decks
6%synergy
Leyline of Anticipation
7.7%inclusion7 decks91 decks
3%synergy
Second Chance
5.5%inclusion5 decks91 decks
5%synergy
Planeswalkers
Teferi, Time Raveler
54%inclusion49 decks91 decks
46%synergy
Utility Lands
Otawara, Soaring City
89%inclusion81 decks91 decks
70%synergy
Urza's Saga
40%inclusion36 decks91 decks
28%synergy
Emergence Zone
31%inclusion28 decks91 decks
29%synergy
Cephalid Coliseum
23%inclusion21 decks91 decks
19%synergy
Minamo, School at Water's Edge
22%inclusion20 decks91 decks
18%synergy
Takenuma, Abandoned Mire
11%inclusion10 decks91 decks
5%synergy
City of Traitors
11%inclusion10 decks91 decks
10%synergy
Phyrexian Tower
6.6%inclusion6 decks91 decks
3%synergy
Hall of Heliod's Generosity
6.6%inclusion6 decks91 decks
-6%synergy
Urborg, Tomb of Yawgmoth
6.6%inclusion6 decks91 decks
-6%synergy
Mistrise Village
5.6%inclusion3 decks54 decks
2%synergy
Serra's Sanctum
5.5%inclusion5 decks91 decks
4%synergy
Mana Artifacts
Sol Ring
100%inclusion91 decks91 decks
10%synergy
Arcane Signet
98%inclusion89 decks91 decks
10%synergy
Lotus Petal
92%inclusion84 decks91 decks
82%synergy
Mox Diamond
84%inclusion76 decks91 decks
77%synergy
Talisman of Dominance
82%inclusion75 decks91 decks
33%synergy
Fellwar Stone
80%inclusion73 decks91 decks
47%synergy
Mox Opal
76%inclusion69 decks91 decks
67%synergy
Lion's Eye Diamond
68%inclusion62 decks91 decks
66%synergy
Talisman of Progress
56%inclusion51 decks91 decks
12%synergy
Mox Amber
45%inclusion41 decks91 decks
39%synergy
Grim Monolith
35%inclusion32 decks91 decks
32%synergy
Talisman of Hierarchy
32%inclusion29 decks91 decks
-12%synergy
Dimir Signet
7.7%inclusion7 decks91 decks
-23%synergy
Orzhov Signet
6.6%inclusion6 decks91 decks
-26%synergy
Azorius Signet
5.5%inclusion5 decks91 decks
-25%synergy
Lands
Command Tower
99%inclusion90 decks91 decks
6%synergy
Polluted Delta
97%inclusion88 decks91 decks
59%synergy
Godless Shrine
96%inclusion87 decks91 decks
44%synergy
Watery Grave
96%inclusion87 decks91 decks
45%synergy
Hallowed Fountain
96%inclusion87 decks91 decks
45%synergy
Flooded Strand
95%inclusion86 decks91 decks
56%synergy
Marsh Flats
90%inclusion82 decks91 decks
54%synergy
City of Brass
89%inclusion81 decks91 decks
74%synergy
Gemstone Caverns
88%inclusion80 decks91 decks
80%synergy
Mana Confluence
86%inclusion78 decks91 decks
72%synergy
Tundra
84%inclusion76 decks91 decks
68%synergy
Underground Sea
84%inclusion76 decks91 decks
68%synergy
Scrubland
84%inclusion76 decks91 decks
68%synergy
Bloodstained Mire
81%inclusion74 decks91 decks
71%synergy
Misty Rainforest
78%inclusion71 decks91 decks
67%synergy
Verdant Catacombs
76%inclusion69 decks91 decks
66%synergy
Scalding Tarn
75%inclusion68 decks91 decks
64%synergy
Windswept Heath
71%inclusion65 decks91 decks
62%synergy
Morphic Pool
69%inclusion63 decks91 decks
35%synergy
Exotic Orchard
68%inclusion62 decks91 decks
9%synergy
Arid Mesa
60%inclusion55 decks91 decks
51%synergy
Undercity Sewers
56%inclusion51 decks91 decks
41%synergy
Sea of Clouds
53%inclusion48 decks91 decks
18%synergy
Island
46%inclusion42 decks91 decks
-47%synergy
Swamp
44%inclusion40 decks91 decks
-48%synergy
Vault of Champions
44%inclusion40 decks91 decks
12%synergy
Starting Town
35%inclusion14 decks40 decks
31%synergy
Sink into Stupor
34%inclusion31 decks91 decks
21%synergy
Plains
31%inclusion28 decks91 decks
-61%synergy
Meticulous Archive
23%inclusion21 decks91 decks
9%synergy
Cavern of Souls
22%inclusion20 decks91 decks
15%synergy
Spire of Industry
16%inclusion15 decks91 decks
9%synergy
Forbidden Orchard
16%inclusion15 decks91 decks
14%synergy
Shadowy Backstreet
14%inclusion13 decks91 decks
2%synergy
Gloomlake Verge
11%inclusion10 decks91 decks
0%synergy
Underground River
10%inclusion9 decks91 decks
-24%synergy
Caves of Koilos
7.7%inclusion7 decks91 decks
-28%synergy
Reflecting Pool
7.7%inclusion7 decks91 decks
0%synergy
Floodfarm Verge
7.7%inclusion7 decks91 decks
-3%synergy
Prismatic Vista
6.6%inclusion6 decks91 decks
3%synergy
Talon Gates of Madara
6.6%inclusion6 decks91 decks
5%synergy
Adarkar Wastes
6.6%inclusion6 decks91 decks
-25%synergy
Glacial Fortress
5.5%inclusion5 decks91 decks
-37%synergy
Raffine's Tower
5.5%inclusion5 decks91 decks
-35%synergy
Snow-Covered Swamp
5.5%inclusion5 decks91 decks
3%synergy
Silent Clearing
5.5%inclusion5 decks91 decks
3%synergy
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