The Master of Keys (Commander) - Expensive

The Master of Keys
Rank #303
825decks
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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
Mana Artifacts
Lands
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King T'Challa
3.1%inclusion1 decks32 decks
2%synergy
The Mind Stone
3.0%inclusion2 decks66 decks
2%synergy
High Synergy Cards
Necromancy
96%inclusion789 decks825 decks
91%synergy
Intuition
92%inclusion760 decks825 decks
91%synergy
Abdel Adrian, Gorion's Ward
90%inclusion746 decks825 decks
89%synergy
Animate Dead
97%inclusion797 decks825 decks
87%synergy
Dance of the Dead
89%inclusion734 decks825 decks
87%synergy
Entomb
93%inclusion771 decks825 decks
87%synergy
Tainted Pact
93%inclusion767 decks825 decks
86%synergy
Dress Down
87%inclusion716 decks825 decks
85%synergy
Silence
93%inclusion771 decks825 decks
83%synergy
Orcish Bowmasters
93%inclusion767 decks825 decks
83%synergy
Top Cards
Mystic Remora
99%inclusion817 decks825 decks
79%synergy
Esper Sentinel
98%inclusion810 decks825 decks
71%synergy
Dark Ritual
95%inclusion786 decks825 decks
75%synergy
Smothering Tithe
95%inclusion781 decks825 decks
64%synergy
Swan Song
91%inclusion753 decks825 decks
71%synergy
Force of Negation
91%inclusion750 decks825 decks
79%synergy
Flusterstorm
91%inclusion748 decks825 decks
83%synergy
Mindbreak Trap
88%inclusion728 decks825 decks
82%synergy
Imperial Seal
87%inclusion717 decks825 decks
80%synergy
Demonic Consultation
87%inclusion714 decks825 decks
79%synergy
Game Changers
Rhystic Study
100%inclusion821 decks825 decks
69%synergy
Vampiric Tutor
99%inclusion815 decks825 decks
82%synergy
Demonic Tutor
99%inclusion813 decks825 decks
78%synergy
Mana Vault
98%inclusion810 decks825 decks
90%synergy
Force of Will
98%inclusion810 decks825 decks
86%synergy
Mox Diamond
98%inclusion810 decks825 decks
91%synergy
Chrome Mox
97%inclusion804 decks825 decks
89%synergy
Ancient Tomb
97%inclusion802 decks825 decks
85%synergy
Enlightened Tutor
97%inclusion801 decks825 decks
78%synergy
Thassa's Oracle
96%inclusion789 decks825 decks
87%synergy
Creatures
Grand Abolisher
85%inclusion703 decks825 decks
71%synergy
Ranger-Captain of Eos
85%inclusion701 decks825 decks
79%synergy
Lotho, Corrupt Shirriff
80%inclusion663 decks825 decks
63%synergy
Valley Floodcaller
75%inclusion619 decks825 decks
71%synergy
Opposition Agent
57%inclusion474 decks825 decks
49%synergy
Voice of Victory
57%inclusion238 decks416 decks
49%synergy
Wan Shi Tong, Librarian
57%inclusion112 decks197 decks
52%synergy
Displacer Kitten
52%inclusion433 decks825 decks
46%synergy
Hullbreaker Horror
50%inclusion410 decks825 decks
44%synergy
Auriok Salvagers
48%inclusion398 decks825 decks
48%synergy
Mockingbird
46%inclusion381 decks825 decks
42%synergy
Drannith Magistrate
43%inclusion354 decks825 decks
35%synergy
Archivist of Oghma
38%inclusion317 decks825 decks
32%synergy
Lurrus of the Dream-Den
35%inclusion289 decks825 decks
34%synergy
Tataru Taru
35%inclusion117 decks338 decks
26%synergy
Ledger Shredder
29%inclusion243 decks825 decks
21%synergy
Talion, the Kindly Lord
26%inclusion215 decks825 decks
19%synergy
Faerie Mastermind
25%inclusion205 decks825 decks
15%synergy
Phyrexian Metamorph
24%inclusion200 decks825 decks
16%synergy
Exhibition Tidecaller
22%inclusion20 decks90 decks
22%synergy
Pollywog Prodigy
20%inclusion167 decks825 decks
17%synergy
Psychic Frog
20%inclusion163 decks825 decks
12%synergy
Hedron Crab
19%inclusion159 decks825 decks
19%synergy
Ghostly Pilferer
14%inclusion118 decks825 decks
7%synergy
Dauthi Voidwalker
12%inclusion96 decks825 decks
6%synergy
Hoarding Broodlord
8.6%inclusion71 decks825 decks
7%synergy
Snapcaster Mage
8.5%inclusion70 decks825 decks
6%synergy
Gilded Drake
8.5%inclusion70 decks825 decks
7%synergy
High Fae Trickster
7.8%inclusion49 decks628 decks
3%synergy
Leonin Relic-Warder
7.6%inclusion63 decks825 decks
7%synergy
Volatile Stormdrake
6.9%inclusion57 decks825 decks
6%synergy
Emet-Selch of the Third Seat
5.3%inclusion18 decks339 decks
-4%synergy
Instants
Mental Misstep
86%inclusion709 decks825 decks
80%synergy
Pact of Negation
86%inclusion709 decks825 decks
79%synergy
Borne Upon a Wind
76%inclusion631 decks825 decks
72%synergy
Swords to Plowshares
75%inclusion615 decks825 decks
7%synergy
Fierce Guardianship
74%inclusion613 decks825 decks
54%synergy
Mystical Tutor
69%inclusion571 decks825 decks
59%synergy
Cabal Ritual
64%inclusion525 decks825 decks
60%synergy
An Offer You Can't Refuse
59%inclusion486 decks825 decks
31%synergy
Cyclonic Rift
58%inclusion476 decks825 decks
35%synergy
Chain of Vapor
47%inclusion389 decks825 decks
44%synergy
Mana Drain
34%inclusion284 decks825 decks
17%synergy
Into the Flood Maw
34%inclusion283 decks825 decks
31%synergy
Gifts Ungiven
31%inclusion258 decks825 decks
29%synergy
Sink into Stupor
25%inclusion206 decks825 decks
12%synergy
Ad Nauseam
24%inclusion201 decks825 decks
22%synergy
Culling the Weak
20%inclusion162 decks825 decks
18%synergy
Retraction Helix
19%inclusion156 decks825 decks
18%synergy
Brain Freeze
17%inclusion137 decks825 decks
16%synergy
Darkblast
14%inclusion119 decks825 decks
14%synergy
Path to Exile
14%inclusion115 decks825 decks
-28%synergy
Banishing Knack
12%inclusion98 decks825 decks
12%synergy
Dispel
8.6%inclusion71 decks825 decks
5%synergy
Deadly Rollick
7.6%inclusion63 decks825 decks
-8%synergy
Orim's Chant
7.6%inclusion63 decks825 decks
6%synergy
Saw in Half
7.3%inclusion60 decks825 decks
5%synergy
Strix Serenade
6.4%inclusion53 decks825 decks
3%synergy
Dramatic Reversal
6.1%inclusion50 decks825 decks
4%synergy
Sacrifice
5.3%inclusion44 decks825 decks
5%synergy
Misdirection
5.3%inclusion44 decks825 decks
3%synergy
Rain of Filth
5.1%inclusion42 decks825 decks
5%synergy
Sorceries
Sevinne's Reclamation
72%inclusion593 decks825 decks
63%synergy
Reanimate
35%inclusion287 decks825 decks
19%synergy
Toxic Deluge
33%inclusion273 decks825 decks
13%synergy
Windfall
30%inclusion244 decks825 decks
17%synergy
Beseech the Mirror
27%inclusion219 decks825 decks
23%synergy
Mnemonic Betrayal
24%inclusion200 decks825 decks
22%synergy
Lively Dirge
22%inclusion182 decks825 decks
21%synergy
Demonic Counsel
15%inclusion121 decks825 decks
14%synergy
Flash Photography
14%inclusion29 decks208 decks
13%synergy
Yawgmoth's Will
13%inclusion108 decks825 decks
12%synergy
Cabal Therapy
11%inclusion87 decks825 decks
10%synergy
Praetor's Grasp
10%inclusion85 decks825 decks
8%synergy
Diabolic Intent
10%inclusion80 decks825 decks
5%synergy
Unmarked Grave
10%inclusion79 decks825 decks
8%synergy
Utility Artifacts
The One Ring
81%inclusion668 decks825 decks
68%synergy
Wishclaw Talisman
70%inclusion576 decks825 decks
62%synergy
Cursed Totem
9.1%inclusion75 decks825 decks
7%synergy
Vexing Bauble
7.9%inclusion65 decks825 decks
6%synergy
Mesmeric Orb
7.2%inclusion59 decks825 decks
6%synergy
Isochron Scepter
5.6%inclusion46 decks825 decks
4%synergy
Sensei's Divining Top
5.2%inclusion43 decks825 decks
-4%synergy
Enchantments
Necropotence
71%inclusion582 decks825 decks
64%synergy
Tinybones Joins Up
64%inclusion526 decks825 decks
63%synergy
Blind Obedience
60%inclusion496 decks825 decks
48%synergy
Copy Artifact
52%inclusion432 decks825 decks
51%synergy
Amphibian Downpour
49%inclusion407 decks825 decks
45%synergy
Ripples of Undeath
48%inclusion397 decks825 decks
45%synergy
Touch the Spirit Realm
43%inclusion356 decks825 decks
41%synergy
The Meathook Massacre
38%inclusion317 decks825 decks
35%synergy
Mirrormade
36%inclusion297 decks825 decks
26%synergy
Static Prison
35%inclusion287 decks825 decks
34%synergy
Steal Enchantment
31%inclusion253 decks825 decks
30%synergy
Chains of Mephistopheles
20%inclusion167 decks825 decks
20%synergy
Counterbalance
20%inclusion162 decks825 decks
18%synergy
Trouble in Pairs
19%inclusion154 decks825 decks
13%synergy
Founding the Third Path
18%inclusion149 decks825 decks
18%synergy
Copy Enchantment
17%inclusion138 decks825 decks
12%synergy
Chthonian Nightmare
12%inclusion99 decks825 decks
11%synergy
Seal of Removal
8.2%inclusion68 decks825 decks
8%synergy
Monologue Tax
7.5%inclusion62 decks825 decks
1%synergy
Power Artifact
6.9%inclusion57 decks825 decks
7%synergy
Leyline of Anticipation
6.8%inclusion56 decks825 decks
2%synergy
Seal of Cleansing
6.7%inclusion55 decks825 decks
5%synergy
Aura of Silence
6.7%inclusion55 decks825 decks
4%synergy
Dance of Many
5.6%inclusion46 decks825 decks
5%synergy
Charitable Levy
5.1%inclusion42 decks825 decks
5%synergy
Planeswalkers
Teferi, Time Raveler
53%inclusion435 decks825 decks
45%synergy
Utility Lands
Otawara, Soaring City
92%inclusion763 decks825 decks
73%synergy
Urza's Saga
46%inclusion378 decks825 decks
34%synergy
Minamo, School at Water's Edge
34%inclusion284 decks825 decks
31%synergy
Emergence Zone
28%inclusion235 decks825 decks
26%synergy
City of Traitors
27%inclusion222 decks825 decks
26%synergy
Serra's Sanctum
24%inclusion198 decks825 decks
22%synergy
Cephalid Coliseum
22%inclusion181 decks825 decks
18%synergy
Takenuma, Abandoned Mire
10%inclusion82 decks825 decks
4%synergy
Urborg, Tomb of Yawgmoth
8.2%inclusion68 decks825 decks
-5%synergy
Hall of Heliod's Generosity
5.6%inclusion46 decks825 decks
-7%synergy
Phyrexian Tower
5.2%inclusion43 decks825 decks
2%synergy
Mana Artifacts
Sol Ring
100%inclusion823 decks825 decks
10%synergy
Arcane Signet
97%inclusion800 decks825 decks
9%synergy
Lotus Petal
96%inclusion790 decks825 decks
85%synergy
Mox Opal
88%inclusion722 decks825 decks
79%synergy
Lion's Eye Diamond
86%inclusion706 decks825 decks
84%synergy
Talisman of Dominance
83%inclusion681 decks825 decks
32%synergy
Fellwar Stone
80%inclusion658 decks825 decks
47%synergy
Grim Monolith
55%inclusion453 decks825 decks
52%synergy
Talisman of Progress
49%inclusion403 decks825 decks
4%synergy
Mox Amber
40%inclusion331 decks825 decks
34%synergy
Talisman of Hierarchy
29%inclusion243 decks825 decks
-15%synergy
Basalt Monolith
6.9%inclusion57 decks825 decks
5%synergy
Lands
Tundra
100%inclusion823 decks825 decks
84%synergy
Underground Sea
100%inclusion823 decks825 decks
84%synergy
Scrubland
100%inclusion823 decks825 decks
84%synergy
Watery Grave
99%inclusion820 decks825 decks
48%synergy
Polluted Delta
99%inclusion819 decks825 decks
61%synergy
Flooded Strand
99%inclusion813 decks825 decks
60%synergy
Command Tower
98%inclusion812 decks825 decks
6%synergy
Hallowed Fountain
98%inclusion811 decks825 decks
47%synergy
Marsh Flats
98%inclusion809 decks825 decks
62%synergy
Godless Shrine
95%inclusion785 decks825 decks
43%synergy
Mana Confluence
94%inclusion777 decks825 decks
80%synergy
Gemstone Caverns
94%inclusion772 decks825 decks
86%synergy
City of Brass
93%inclusion769 decks825 decks
78%synergy
Misty Rainforest
89%inclusion731 decks825 decks
78%synergy
Bloodstained Mire
86%inclusion709 decks825 decks
75%synergy
Verdant Catacombs
84%inclusion697 decks825 decks
75%synergy
Scalding Tarn
84%inclusion690 decks825 decks
73%synergy
Windswept Heath
72%inclusion598 decks825 decks
63%synergy
Arid Mesa
68%inclusion563 decks825 decks
59%synergy
Exotic Orchard
68%inclusion562 decks825 decks
9%synergy
Morphic Pool
66%inclusion543 decks825 decks
32%synergy
Undercity Sewers
57%inclusion467 decks825 decks
42%synergy
Sea of Clouds
52%inclusion426 decks825 decks
17%synergy
Vault of Champions
41%inclusion335 decks825 decks
8%synergy
Starting Town
38%inclusion128 decks339 decks
34%synergy
Island
33%inclusion272 decks825 decks
-60%synergy
Sink into Stupor
25%inclusion206 decks825 decks
12%synergy
Swamp
25%inclusion205 decks825 decks
-67%synergy
Meticulous Archive
21%inclusion177 decks825 decks
7%synergy
Spire of Industry
19%inclusion156 decks825 decks
11%synergy
Plains
18%inclusion148 decks825 decks
-74%synergy
Forbidden Orchard
18%inclusion147 decks825 decks
16%synergy
Cavern of Souls
18%inclusion146 decks825 decks
11%synergy
Shadowy Backstreet
15%inclusion123 decks825 decks
2%synergy
Talon Gates of Madara
11%inclusion94 decks825 decks
10%synergy
Underground River
7.6%inclusion63 decks825 decks
-27%synergy
Tarnished Citadel
6.5%inclusion54 decks825 decks
6%synergy
Raffine's Tower
5.5%inclusion45 decks825 decks
-35%synergy
Silent Clearing
5.3%inclusion44 decks825 decks
3%synergy
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