The Master of Keys (Commander) - cEDH

The Master of Keys
Rank #304
610decks
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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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Secret Invasion
4.3%inclusion1 decks23 decks
4%synergy
King T'Challa
4.3%inclusion1 decks23 decks
3%synergy
The Mind Stone
2.1%inclusion1 decks48 decks
1%synergy
High Synergy Cards
Necromancy
95%inclusion577 decks610 decks
90%synergy
Abdel Adrian, Gorion's Ward
90%inclusion549 decks610 decks
88%synergy
Animate Dead
98%inclusion596 decks610 decks
88%synergy
Entomb
94%inclusion575 decks610 decks
88%synergy
Dance of the Dead
89%inclusion543 decks610 decks
87%synergy
Dress Down
86%inclusion526 decks610 decks
84%synergy
Tainted Pact
90%inclusion551 decks610 decks
84%synergy
Silence
93%inclusion565 decks610 decks
83%synergy
Demonic Consultation
88%inclusion536 decks610 decks
80%synergy
Mindbreak Trap
86%inclusion525 decks610 decks
80%synergy
Top Cards
Mystic Remora
98%inclusion597 decks610 decks
77%synergy
Esper Sentinel
95%inclusion581 decks610 decks
68%synergy
Dark Ritual
94%inclusion575 decks610 decks
74%synergy
Swan Song
89%inclusion545 decks610 decks
69%synergy
Orcish Bowmasters
88%inclusion539 decks610 decks
78%synergy
Flusterstorm
87%inclusion532 decks610 decks
79%synergy
Grand Abolisher
87%inclusion531 decks610 decks
73%synergy
Force of Negation
86%inclusion523 decks610 decks
74%synergy
Mental Misstep
80%inclusion487 decks610 decks
73%synergy
Pact of Negation
80%inclusion485 decks610 decks
72%synergy
Game Changers
Rhystic Study
97%inclusion592 decks610 decks
67%synergy
Demonic Tutor
96%inclusion588 decks610 decks
76%synergy
Vampiric Tutor
96%inclusion587 decks610 decks
80%synergy
Enlightened Tutor
95%inclusion582 decks610 decks
77%synergy
Thassa's Oracle
95%inclusion579 decks610 decks
86%synergy
Mana Vault
95%inclusion578 decks610 decks
86%synergy
Chrome Mox
93%inclusion570 decks610 decks
85%synergy
Force of Will
93%inclusion568 decks610 decks
81%synergy
Smothering Tithe
92%inclusion563 decks610 decks
62%synergy
Ancient Tomb
91%inclusion555 decks610 decks
79%synergy
Creatures
Ranger-Captain of Eos
79%inclusion480 decks610 decks
73%synergy
Lotho, Corrupt Shirriff
78%inclusion475 decks610 decks
61%synergy
Valley Floodcaller
73%inclusion445 decks610 decks
69%synergy
Opposition Agent
57%inclusion347 decks610 decks
49%synergy
Displacer Kitten
54%inclusion330 decks610 decks
47%synergy
Voice of Victory
51%inclusion194 decks378 decks
43%synergy
Hullbreaker Horror
46%inclusion283 decks610 decks
40%synergy
Wan Shi Tong, Librarian
46%inclusion69 decks149 decks
41%synergy
Mockingbird
42%inclusion257 decks610 decks
38%synergy
Archivist of Oghma
41%inclusion251 decks610 decks
35%synergy
Drannith Magistrate
41%inclusion251 decks610 decks
34%synergy
Auriok Salvagers
40%inclusion243 decks610 decks
40%synergy
Lurrus of the Dream-Den
36%inclusion220 decks610 decks
35%synergy
Ledger Shredder
31%inclusion189 decks610 decks
22%synergy
Tataru Taru
31%inclusion88 decks287 decks
22%synergy
Faerie Mastermind
27%inclusion163 decks610 decks
17%synergy
Exhibition Tidecaller
26%inclusion18 decks70 decks
25%synergy
Phyrexian Metamorph
26%inclusion156 decks610 decks
18%synergy
Talion, the Kindly Lord
25%inclusion154 decks610 decks
18%synergy
Hedron Crab
21%inclusion129 decks610 decks
21%synergy
Pollywog Prodigy
19%inclusion118 decks610 decks
16%synergy
Psychic Frog
19%inclusion117 decks610 decks
12%synergy
Ghostly Pilferer
14%inclusion87 decks610 decks
7%synergy
Dauthi Voidwalker
14%inclusion85 decks610 decks
8%synergy
Hoarding Broodlord
12%inclusion71 decks610 decks
10%synergy
Leonin Relic-Warder
10%inclusion62 decks610 decks
10%synergy
Volatile Stormdrake
8.9%inclusion54 decks610 decks
8%synergy
High Fae Trickster
7.9%inclusion42 decks533 decks
3%synergy
Snapcaster Mage
7.7%inclusion47 decks610 decks
6%synergy
Gilded Drake
6.2%inclusion38 decks610 decks
5%synergy
Overlord of the Balemurk
5.6%inclusion34 decks610 decks
4%synergy
Phantasmal Image
5.4%inclusion33 decks610 decks
3%synergy
Instants
Intuition
79%inclusion481 decks610 decks
77%synergy
Swords to Plowshares
78%inclusion475 decks610 decks
10%synergy
Borne Upon a Wind
72%inclusion439 decks610 decks
67%synergy
Fierce Guardianship
70%inclusion429 decks610 decks
50%synergy
Mystical Tutor
68%inclusion414 decks610 decks
57%synergy
An Offer You Can't Refuse
63%inclusion383 decks610 decks
35%synergy
Cabal Ritual
58%inclusion351 decks610 decks
54%synergy
Cyclonic Rift
56%inclusion343 decks610 decks
34%synergy
Into the Flood Maw
41%inclusion250 decks610 decks
37%synergy
Chain of Vapor
40%inclusion246 decks610 decks
37%synergy
Gifts Ungiven
36%inclusion222 decks610 decks
34%synergy
Mana Drain
32%inclusion198 decks610 decks
15%synergy
Sink into Stupor
30%inclusion184 decks610 decks
17%synergy
Ad Nauseam
21%inclusion126 decks610 decks
18%synergy
Retraction Helix
20%inclusion119 decks610 decks
19%synergy
Culling the Weak
19%inclusion117 decks610 decks
18%synergy
Path to Exile
17%inclusion104 decks610 decks
-25%synergy
Brain Freeze
14%inclusion87 decks610 decks
14%synergy
Darkblast
13%inclusion80 decks610 decks
13%synergy
Banishing Knack
12%inclusion76 decks610 decks
12%synergy
Dispel
12%inclusion71 decks610 decks
8%synergy
Saw in Half
10%inclusion60 decks610 decks
8%synergy
Strix Serenade
9.2%inclusion56 decks610 decks
6%synergy
Orim's Chant
9.0%inclusion55 decks610 decks
7%synergy
Deadly Rollick
8.9%inclusion54 decks610 decks
-7%synergy
Sacrifice
7.4%inclusion45 decks610 decks
7%synergy
Muddle the Mixture
7.4%inclusion45 decks610 decks
4%synergy
Lim-Dûl's Vault
6.6%inclusion40 decks610 decks
3%synergy
Counterspell
6.1%inclusion37 decks610 decks
-36%synergy
Spell Pierce
6.1%inclusion37 decks610 decks
3%synergy
Dovin's Veto
5.7%inclusion35 decks610 decks
-21%synergy
Angel's Grace
5.7%inclusion35 decks610 decks
3%synergy
Rain of Filth
5.2%inclusion32 decks610 decks
5%synergy
Sorceries
Imperial Seal
77%inclusion469 decks610 decks
70%synergy
Sevinne's Reclamation
71%inclusion434 decks610 decks
62%synergy
Toxic Deluge
37%inclusion225 decks610 decks
17%synergy
Reanimate
35%inclusion216 decks610 decks
19%synergy
Windfall
29%inclusion175 decks610 decks
16%synergy
Beseech the Mirror
26%inclusion160 decks610 decks
22%synergy
Lively Dirge
24%inclusion148 decks610 decks
23%synergy
Mnemonic Betrayal
22%inclusion132 decks610 decks
19%synergy
Demonic Counsel
18%inclusion109 decks610 decks
17%synergy
Flash Photography
14%inclusion23 decks165 decks
13%synergy
Unmarked Grave
10%inclusion62 decks610 decks
9%synergy
Praetor's Grasp
10%inclusion62 decks610 decks
7%synergy
Yawgmoth's Will
9.3%inclusion57 decks610 decks
8%synergy
Cabal Therapy
9.0%inclusion55 decks610 decks
9%synergy
Diabolic Intent
8.5%inclusion52 decks610 decks
4%synergy
Utility Artifacts
The One Ring
77%inclusion472 decks610 decks
65%synergy
Wishclaw Talisman
70%inclusion426 decks610 decks
62%synergy
Cursed Totem
10%inclusion64 decks610 decks
8%synergy
Mesmeric Orb
9.0%inclusion55 decks610 decks
8%synergy
Vexing Bauble
7.0%inclusion43 decks610 decks
5%synergy
Enchantments
Necropotence
67%inclusion408 decks610 decks
60%synergy
Tinybones Joins Up
67%inclusion406 decks610 decks
65%synergy
Blind Obedience
61%inclusion375 decks610 decks
50%synergy
Amphibian Downpour
53%inclusion326 decks610 decks
49%synergy
Ripples of Undeath
50%inclusion308 decks610 decks
48%synergy
Touch the Spirit Realm
42%inclusion256 decks610 decks
40%synergy
Copy Artifact
40%inclusion247 decks610 decks
39%synergy
Mirrormade
40%inclusion241 decks610 decks
30%synergy
The Meathook Massacre
37%inclusion225 decks610 decks
34%synergy
Static Prison
34%inclusion210 decks610 decks
34%synergy
Steal Enchantment
29%inclusion176 decks610 decks
28%synergy
Counterbalance
19%inclusion113 decks610 decks
17%synergy
Copy Enchantment
18%inclusion112 decks610 decks
14%synergy
Founding the Third Path
18%inclusion108 decks610 decks
18%synergy
Trouble in Pairs
17%inclusion102 decks610 decks
12%synergy
Chains of Mephistopheles
12%inclusion75 decks610 decks
12%synergy
Chthonian Nightmare
11%inclusion66 decks610 decks
10%synergy
Monologue Tax
10%inclusion60 decks610 decks
3%synergy
Seal of Removal
8.4%inclusion51 decks610 decks
8%synergy
Leyline of Anticipation
8.0%inclusion49 decks610 decks
4%synergy
Seal of Cleansing
6.1%inclusion37 decks610 decks
5%synergy
Aura of Silence
5.7%inclusion35 decks610 decks
3%synergy
Second Chance
5.2%inclusion32 decks610 decks
5%synergy
Planeswalkers
Teferi, Time Raveler
52%inclusion316 decks610 decks
44%synergy
Utility Lands
Otawara, Soaring City
86%inclusion525 decks610 decks
67%synergy
Urza's Saga
39%inclusion238 decks610 decks
27%synergy
Minamo, School at Water's Edge
30%inclusion184 decks610 decks
26%synergy
Emergence Zone
28%inclusion168 decks610 decks
26%synergy
Cephalid Coliseum
22%inclusion134 decks610 decks
18%synergy
City of Traitors
16%inclusion97 decks610 decks
15%synergy
Serra's Sanctum
12%inclusion71 decks610 decks
10%synergy
Takenuma, Abandoned Mire
11%inclusion67 decks610 decks
5%synergy
Urborg, Tomb of Yawgmoth
8.4%inclusion51 decks610 decks
-5%synergy
Hall of Heliod's Generosity
6.9%inclusion42 decks610 decks
-6%synergy
Mana Artifacts
Sol Ring
100%inclusion607 decks610 decks
10%synergy
Arcane Signet
98%inclusion596 decks610 decks
10%synergy
Lotus Petal
94%inclusion571 decks610 decks
83%synergy
Talisman of Dominance
84%inclusion511 decks610 decks
34%synergy
Mox Diamond
83%inclusion506 decks610 decks
76%synergy
Fellwar Stone
81%inclusion493 decks610 decks
48%synergy
Mox Opal
79%inclusion482 decks610 decks
71%synergy
Lion's Eye Diamond
66%inclusion403 decks610 decks
64%synergy
Talisman of Progress
55%inclusion334 decks610 decks
10%synergy
Talisman of Hierarchy
40%inclusion242 decks610 decks
-5%synergy
Mox Amber
39%inclusion240 decks610 decks
33%synergy
Grim Monolith
35%inclusion216 decks610 decks
32%synergy
Basalt Monolith
7.2%inclusion44 decks610 decks
5%synergy
Lands
Command Tower
98%inclusion598 decks610 decks
5%synergy
Watery Grave
96%inclusion587 decks610 decks
45%synergy
Polluted Delta
96%inclusion584 decks610 decks
58%synergy
Hallowed Fountain
95%inclusion579 decks610 decks
44%synergy
Godless Shrine
94%inclusion574 decks610 decks
42%synergy
Flooded Strand
94%inclusion572 decks610 decks
55%synergy
Marsh Flats
93%inclusion568 decks610 decks
57%synergy
City of Brass
88%inclusion539 decks610 decks
73%synergy
Gemstone Caverns
88%inclusion535 decks610 decks
80%synergy
Mana Confluence
87%inclusion529 decks610 decks
73%synergy
Tundra
85%inclusion519 decks610 decks
69%synergy
Scrubland
85%inclusion517 decks610 decks
69%synergy
Underground Sea
83%inclusion505 decks610 decks
67%synergy
Bloodstained Mire
81%inclusion497 decks610 decks
71%synergy
Misty Rainforest
81%inclusion494 decks610 decks
70%synergy
Verdant Catacombs
78%inclusion473 decks610 decks
68%synergy
Scalding Tarn
75%inclusion456 decks610 decks
64%synergy
Exotic Orchard
70%inclusion426 decks610 decks
11%synergy
Windswept Heath
69%inclusion422 decks610 decks
60%synergy
Morphic Pool
68%inclusion414 decks610 decks
34%synergy
Arid Mesa
63%inclusion384 decks610 decks
54%synergy
Undercity Sewers
55%inclusion338 decks610 decks
41%synergy
Sea of Clouds
54%inclusion329 decks610 decks
19%synergy
Vault of Champions
46%inclusion282 decks610 decks
14%synergy
Island
44%inclusion267 decks610 decks
-49%synergy
Swamp
38%inclusion229 decks610 decks
-54%synergy
Starting Town
34%inclusion98 decks287 decks
30%synergy
Sink into Stupor
30%inclusion184 decks610 decks
17%synergy
Plains
29%inclusion176 decks610 decks
-63%synergy
Meticulous Archive
24%inclusion149 decks610 decks
10%synergy
Forbidden Orchard
20%inclusion123 decks610 decks
18%synergy
Spire of Industry
19%inclusion117 decks610 decks
11%synergy
Cavern of Souls
19%inclusion113 decks610 decks
12%synergy
Shadowy Backstreet
18%inclusion111 decks610 decks
6%synergy
Underground River
15%inclusion89 decks610 decks
-20%synergy
Talon Gates of Madara
11%inclusion67 decks610 decks
10%synergy
Caves of Koilos
10%inclusion63 decks610 decks
-25%synergy
Adarkar Wastes
10%inclusion62 decks610 decks
-22%synergy
Raffine's Tower
8.7%inclusion53 decks610 decks
-32%synergy
Gloomlake Verge
8.2%inclusion50 decks610 decks
-3%synergy
Floodfarm Verge
7.2%inclusion44 decks610 decks
-4%synergy
Reflecting Pool
5.4%inclusion33 decks610 decks
-3%synergy
Silent Clearing
5.4%inclusion33 decks610 decks
3%synergy
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