The Master of Keys (Commander) - cEDH

The Master of Keys
Rank #300
594decks
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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
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Utility Lands
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Exhibition Tidecaller
26%inclusion10 decks38 decks
26%synergy
Does Machines
2.5%inclusion2 decks81 decks
2%synergy
Splinter's Technique
1.2%inclusion1 decks81 decks
-2%synergy
High Synergy Cards
Necromancy
95%inclusion565 decks594 decks
91%synergy
Abdel Adrian, Gorion's Ward
90%inclusion535 decks594 decks
88%synergy
Animate Dead
97%inclusion579 decks594 decks
88%synergy
Entomb
95%inclusion562 decks594 decks
88%synergy
Dance of the Dead
89%inclusion529 decks594 decks
87%synergy
Dress Down
86%inclusion512 decks594 decks
84%synergy
Tainted Pact
90%inclusion534 decks594 decks
83%synergy
Silence
92%inclusion549 decks594 decks
82%synergy
Demonic Consultation
88%inclusion522 decks594 decks
80%synergy
Flusterstorm
87%inclusion516 decks594 decks
79%synergy
Top Cards
Mystic Remora
98%inclusion580 decks594 decks
77%synergy
Esper Sentinel
95%inclusion564 decks594 decks
68%synergy
Dark Ritual
94%inclusion559 decks594 decks
74%synergy
Swan Song
89%inclusion530 decks594 decks
69%synergy
Orcish Bowmasters
89%inclusion526 decks594 decks
78%synergy
Grand Abolisher
87%inclusion517 decks594 decks
73%synergy
Force of Negation
85%inclusion507 decks594 decks
74%synergy
Mindbreak Trap
85%inclusion506 decks594 decks
79%synergy
Mental Misstep
80%inclusion475 decks594 decks
73%synergy
Pact of Negation
80%inclusion475 decks594 decks
72%synergy
Game Changers
Rhystic Study
97%inclusion576 decks594 decks
66%synergy
Demonic Tutor
97%inclusion575 decks594 decks
76%synergy
Vampiric Tutor
96%inclusion569 decks594 decks
79%synergy
Enlightened Tutor
95%inclusion566 decks594 decks
76%synergy
Thassa's Oracle
95%inclusion563 decks594 decks
86%synergy
Mana Vault
95%inclusion563 decks594 decks
86%synergy
Chrome Mox
93%inclusion552 decks594 decks
84%synergy
Force of Will
93%inclusion550 decks594 decks
80%synergy
Smothering Tithe
92%inclusion546 decks594 decks
61%synergy
Ancient Tomb
91%inclusion540 decks594 decks
78%synergy
Creatures
Ranger-Captain of Eos
79%inclusion469 decks594 decks
73%synergy
Lotho, Corrupt Shirriff
78%inclusion463 decks594 decks
61%synergy
Valley Floodcaller
74%inclusion437 decks594 decks
70%synergy
Opposition Agent
57%inclusion341 decks594 decks
49%synergy
Displacer Kitten
54%inclusion323 decks594 decks
48%synergy
Voice of Victory
50%inclusion181 decks359 decks
42%synergy
Wan Shi Tong, Librarian
48%inclusion60 decks126 decks
43%synergy
Hullbreaker Horror
47%inclusion277 decks594 decks
41%synergy
Archivist of Oghma
42%inclusion251 decks594 decks
36%synergy
Drannith Magistrate
42%inclusion249 decks594 decks
34%synergy
Mockingbird
42%inclusion249 decks594 decks
38%synergy
Auriok Salvagers
39%inclusion230 decks594 decks
38%synergy
Lurrus of the Dream-Den
36%inclusion216 decks594 decks
35%synergy
Ledger Shredder
31%inclusion187 decks594 decks
23%synergy
Tataru Taru
30%inclusion80 decks268 decks
22%synergy
Phyrexian Metamorph
26%inclusion155 decks594 decks
18%synergy
Talion, the Kindly Lord
26%inclusion155 decks594 decks
19%synergy
Faerie Mastermind
26%inclusion152 decks594 decks
16%synergy
Hedron Crab
22%inclusion128 decks594 decks
21%synergy
Pollywog Prodigy
20%inclusion119 decks594 decks
16%synergy
Psychic Frog
19%inclusion115 decks594 decks
12%synergy
Dauthi Voidwalker
14%inclusion82 decks594 decks
8%synergy
Ghostly Pilferer
13%inclusion80 decks594 decks
6%synergy
Hoarding Broodlord
11%inclusion68 decks594 decks
10%synergy
Leonin Relic-Warder
10%inclusion62 decks594 decks
10%synergy
Volatile Stormdrake
8.8%inclusion52 decks594 decks
7%synergy
High Fae Trickster
8.1%inclusion42 decks517 decks
4%synergy
Snapcaster Mage
7.4%inclusion44 decks594 decks
5%synergy
Gilded Drake
6.4%inclusion38 decks594 decks
5%synergy
Overlord of the Balemurk
5.6%inclusion33 decks594 decks
4%synergy
Phantasmal Image
5.1%inclusion30 decks594 decks
3%synergy
Entity Tracker
5.1%inclusion30 decks594 decks
-1%synergy
Instants
Intuition
80%inclusion474 decks594 decks
78%synergy
Swords to Plowshares
78%inclusion462 decks594 decks
10%synergy
Borne Upon a Wind
72%inclusion427 decks594 decks
67%synergy
Fierce Guardianship
70%inclusion418 decks594 decks
50%synergy
Mystical Tutor
68%inclusion401 decks594 decks
57%synergy
An Offer You Can't Refuse
63%inclusion374 decks594 decks
36%synergy
Cabal Ritual
57%inclusion341 decks594 decks
54%synergy
Cyclonic Rift
57%inclusion336 decks594 decks
33%synergy
Into the Flood Maw
41%inclusion244 decks594 decks
37%synergy
Chain of Vapor
40%inclusion235 decks594 decks
37%synergy
Gifts Ungiven
36%inclusion211 decks594 decks
33%synergy
Mana Drain
33%inclusion194 decks594 decks
15%synergy
Sink into Stupor
31%inclusion184 decks594 decks
18%synergy
Ad Nauseam
20%inclusion120 decks594 decks
18%synergy
Retraction Helix
20%inclusion117 decks594 decks
19%synergy
Culling the Weak
19%inclusion114 decks594 decks
18%synergy
Path to Exile
18%inclusion104 decks594 decks
-25%synergy
Brain Freeze
14%inclusion85 decks594 decks
14%synergy
Darkblast
13%inclusion78 decks594 decks
13%synergy
Banishing Knack
12%inclusion72 decks594 decks
12%synergy
Dispel
12%inclusion69 decks594 decks
8%synergy
Saw in Half
10%inclusion59 decks594 decks
8%synergy
Deadly Rollick
9.1%inclusion54 decks594 decks
-6%synergy
Strix Serenade
9.1%inclusion54 decks594 decks
6%synergy
Orim's Chant
8.2%inclusion49 decks594 decks
7%synergy
Sacrifice
7.4%inclusion44 decks594 decks
7%synergy
Muddle the Mixture
7.2%inclusion43 decks594 decks
4%synergy
Lim-Dûl's Vault
6.6%inclusion39 decks594 decks
3%synergy
Spell Pierce
6.1%inclusion36 decks594 decks
3%synergy
Rain of Filth
5.7%inclusion34 decks594 decks
6%synergy
Counterspell
5.7%inclusion34 decks594 decks
-36%synergy
Dovin's Veto
5.6%inclusion33 decks594 decks
-20%synergy
Angel's Grace
5.2%inclusion31 decks594 decks
3%synergy
Sorceries
Imperial Seal
76%inclusion453 decks594 decks
69%synergy
Sevinne's Reclamation
72%inclusion428 decks594 decks
63%synergy
Toxic Deluge
38%inclusion223 decks594 decks
18%synergy
Reanimate
36%inclusion215 decks594 decks
20%synergy
Windfall
29%inclusion170 decks594 decks
15%synergy
Beseech the Mirror
26%inclusion152 decks594 decks
22%synergy
Lively Dirge
24%inclusion145 decks594 decks
23%synergy
Mnemonic Betrayal
22%inclusion130 decks594 decks
19%synergy
Demonic Counsel
18%inclusion108 decks594 decks
17%synergy
Unmarked Grave
10%inclusion60 decks594 decks
9%synergy
Flash Photography
10%inclusion14 decks143 decks
9%synergy
Praetor's Grasp
10%inclusion58 decks594 decks
7%synergy
Cabal Therapy
9.4%inclusion56 decks594 decks
9%synergy
Yawgmoth's Will
9.4%inclusion56 decks594 decks
8%synergy
Diabolic Intent
8.4%inclusion50 decks594 decks
4%synergy
Utility Artifacts
The One Ring
78%inclusion464 decks594 decks
65%synergy
Wishclaw Talisman
70%inclusion414 decks594 decks
62%synergy
Cursed Totem
11%inclusion65 decks594 decks
9%synergy
Mesmeric Orb
9.1%inclusion54 decks594 decks
8%synergy
Vexing Bauble
7.1%inclusion42 decks594 decks
5%synergy
Enchantments
Necropotence
68%inclusion402 decks594 decks
61%synergy
Tinybones Joins Up
67%inclusion398 decks594 decks
66%synergy
Blind Obedience
62%inclusion366 decks594 decks
50%synergy
Amphibian Downpour
53%inclusion313 decks594 decks
48%synergy
Ripples of Undeath
51%inclusion303 decks594 decks
48%synergy
Touch the Spirit Realm
42%inclusion252 decks594 decks
40%synergy
Copy Artifact
40%inclusion240 decks594 decks
39%synergy
Mirrormade
39%inclusion232 decks594 decks
29%synergy
The Meathook Massacre
36%inclusion215 decks594 decks
33%synergy
Static Prison
35%inclusion208 decks594 decks
35%synergy
Steal Enchantment
28%inclusion167 decks594 decks
27%synergy
Counterbalance
19%inclusion110 decks594 decks
17%synergy
Founding the Third Path
18%inclusion104 decks594 decks
17%synergy
Trouble in Pairs
17%inclusion101 decks594 decks
12%synergy
Copy Enchantment
16%inclusion97 decks594 decks
12%synergy
Chains of Mephistopheles
12%inclusion70 decks594 decks
12%synergy
Chthonian Nightmare
11%inclusion67 decks594 decks
11%synergy
Monologue Tax
10%inclusion60 decks594 decks
4%synergy
Seal of Removal
8.4%inclusion50 decks594 decks
8%synergy
Leyline of Anticipation
7.9%inclusion47 decks594 decks
4%synergy
Seal of Cleansing
6.2%inclusion37 decks594 decks
5%synergy
Aura of Silence
5.6%inclusion33 decks594 decks
2%synergy
Planeswalkers
Teferi, Time Raveler
52%inclusion311 decks594 decks
44%synergy
Utility Lands
Otawara, Soaring City
86%inclusion513 decks594 decks
67%synergy
Urza's Saga
39%inclusion230 decks594 decks
27%synergy
Minamo, School at Water's Edge
31%inclusion187 decks594 decks
28%synergy
Emergence Zone
28%inclusion165 decks594 decks
26%synergy
Cephalid Coliseum
21%inclusion127 decks594 decks
18%synergy
City of Traitors
16%inclusion95 decks594 decks
15%synergy
Serra's Sanctum
12%inclusion71 decks594 decks
10%synergy
Takenuma, Abandoned Mire
11%inclusion63 decks594 decks
4%synergy
Urborg, Tomb of Yawgmoth
8.8%inclusion52 decks594 decks
-4%synergy
Hall of Heliod's Generosity
6.9%inclusion41 decks594 decks
-6%synergy
Phyrexian Tower
5.6%inclusion33 decks594 decks
2%synergy
Mana Artifacts
Sol Ring
99%inclusion591 decks594 decks
10%synergy
Arcane Signet
98%inclusion580 decks594 decks
10%synergy
Lotus Petal
93%inclusion554 decks594 decks
83%synergy
Talisman of Dominance
84%inclusion498 decks594 decks
34%synergy
Mox Diamond
82%inclusion489 decks594 decks
75%synergy
Fellwar Stone
81%inclusion482 decks594 decks
48%synergy
Mox Opal
79%inclusion467 decks594 decks
70%synergy
Lion's Eye Diamond
66%inclusion393 decks594 decks
64%synergy
Talisman of Progress
55%inclusion328 decks594 decks
11%synergy
Mox Amber
40%inclusion238 decks594 decks
34%synergy
Talisman of Hierarchy
39%inclusion234 decks594 decks
-5%synergy
Grim Monolith
36%inclusion211 decks594 decks
32%synergy
Basalt Monolith
7.1%inclusion42 decks594 decks
5%synergy
Lands
Command Tower
98%inclusion582 decks594 decks
5%synergy
Watery Grave
96%inclusion570 decks594 decks
45%synergy
Polluted Delta
96%inclusion568 decks594 decks
58%synergy
Hallowed Fountain
95%inclusion563 decks594 decks
44%synergy
Godless Shrine
94%inclusion558 decks594 decks
43%synergy
Flooded Strand
94%inclusion557 decks594 decks
55%synergy
Marsh Flats
93%inclusion554 decks594 decks
57%synergy
City of Brass
88%inclusion522 decks594 decks
73%synergy
Gemstone Caverns
87%inclusion519 decks594 decks
80%synergy
Mana Confluence
87%inclusion514 decks594 decks
73%synergy
Tundra
85%inclusion504 decks594 decks
69%synergy
Scrubland
85%inclusion503 decks594 decks
69%synergy
Underground Sea
83%inclusion491 decks594 decks
67%synergy
Misty Rainforest
81%inclusion483 decks594 decks
71%synergy
Bloodstained Mire
81%inclusion482 decks594 decks
70%synergy
Verdant Catacombs
78%inclusion462 decks594 decks
68%synergy
Scalding Tarn
75%inclusion444 decks594 decks
64%synergy
Exotic Orchard
70%inclusion416 decks594 decks
11%synergy
Windswept Heath
69%inclusion412 decks594 decks
60%synergy
Morphic Pool
67%inclusion397 decks594 decks
33%synergy
Arid Mesa
62%inclusion367 decks594 decks
52%synergy
Undercity Sewers
56%inclusion331 decks594 decks
41%synergy
Sea of Clouds
53%inclusion317 decks594 decks
18%synergy
Vault of Champions
46%inclusion273 decks594 decks
14%synergy
Island
44%inclusion263 decks594 decks
-49%synergy
Swamp
38%inclusion224 decks594 decks
-54%synergy
Starting Town
32%inclusion87 decks268 decks
28%synergy
Sink into Stupor
31%inclusion184 decks594 decks
18%synergy
Plains
29%inclusion172 decks594 decks
-63%synergy
Meticulous Archive
25%inclusion146 decks594 decks
11%synergy
Forbidden Orchard
21%inclusion122 decks594 decks
18%synergy
Spire of Industry
19%inclusion112 decks594 decks
11%synergy
Cavern of Souls
18%inclusion108 decks594 decks
12%synergy
Shadowy Backstreet
18%inclusion107 decks594 decks
5%synergy
Underground River
15%inclusion90 decks594 decks
-19%synergy
Talon Gates of Madara
11%inclusion68 decks594 decks
10%synergy
Caves of Koilos
11%inclusion64 decks594 decks
-25%synergy
Adarkar Wastes
11%inclusion64 decks594 decks
-21%synergy
Raffine's Tower
8.6%inclusion51 decks594 decks
-32%synergy
Gloomlake Verge
8.2%inclusion49 decks594 decks
-3%synergy
Floodfarm Verge
7.2%inclusion43 decks594 decks
-4%synergy
Reflecting Pool
5.4%inclusion32 decks594 decks
-3%synergy
Silent Clearing
5.4%inclusion32 decks594 decks
3%synergy
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