The Master of Keys (Commander) - Combo

The Master of Keys
Rank #307
205decks
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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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Instants
Sorceries
Utility Artifacts
Enchantments
Planeswalkers
Utility Lands
Mana Artifacts
Lands
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Noggle the Mind
7.7%inclusion1 decks13 decks
7%synergy
High Synergy Cards
Animate Dead
91%inclusion186 decks205 decks
81%synergy
Necromancy
80%inclusion164 decks205 decks
75%synergy
Abdel Adrian, Gorion's Ward
74%inclusion152 decks205 decks
72%synergy
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Dress Down
72%inclusion147 decks205 decks
69%synergy
Entomb
75%inclusion153 decks205 decks
68%synergy
Mystic Remora
84%inclusion173 decks205 decks
63%synergy
Dance of the Dead
64%inclusion132 decks205 decks
62%synergy
Sevinne's Reclamation
68%inclusion140 decks205 decks
59%synergy
Dark Ritual
71%inclusion146 decks205 decks
52%synergy
Ripples of Undeath
53%inclusion108 decks205 decks
50%synergy
Top Cards
Esper Sentinel
70%inclusion144 decks205 decks
43%synergy
Swan Song
66%inclusion135 decks205 decks
46%synergy
Swords to Plowshares
65%inclusion134 decks205 decks
-3%synergy
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Silence
60%inclusion123 decks205 decks
50%synergy
Blind Obedience
60%inclusion122 decks205 decks
47%synergy
Grand Abolisher
60%inclusion122 decks205 decks
45%synergy
Demonic Consultation
58%inclusion118 decks205 decks
49%synergy
Force of Negation
56%inclusion115 decks205 decks
44%synergy
Orcish Bowmasters
56%inclusion115 decks205 decks
45%synergy
Tainted Pact
55%inclusion113 decks205 decks
48%synergy
Game Changers
Rhystic Study
77%inclusion158 decks205 decks
45%synergy
Smothering Tithe
74%inclusion151 decks205 decks
42%synergy
Enlightened Tutor
72%inclusion147 decks205 decks
52%synergy
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Demonic Tutor
71%inclusion146 decks205 decks
50%synergy
Vampiric Tutor
67%inclusion138 decks205 decks
50%synergy
Thassa's Oracle
67%inclusion137 decks205 decks
57%synergy
Force of Will
61%inclusion126 decks205 decks
49%synergy
Mana Vault
61%inclusion125 decks205 decks
52%synergy
Ancient Tomb
60%inclusion124 decks205 decks
47%synergy
Chrome Mox
59%inclusion120 decks205 decks
49%synergy
Creatures
Lotho, Corrupt Shirriff
54%inclusion111 decks205 decks
37%synergy
Valley Floodcaller
52%inclusion107 decks205 decks
48%synergy
Ranger-Captain of Eos
49%inclusion100 decks205 decks
42%synergy
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Displacer Kitten
41%inclusion85 decks205 decks
34%synergy
Hullbreaker Horror
39%inclusion80 decks205 decks
33%synergy
Wan Shi Tong, Librarian
37%inclusion13 decks35 decks
32%synergy
Opposition Agent
34%inclusion70 decks205 decks
25%synergy
Voice of Victory
33%inclusion40 decks121 decks
25%synergy
Mockingbird
32%inclusion66 decks205 decks
28%synergy
Archivist of Oghma
31%inclusion64 decks205 decks
24%synergy
Lurrus of the Dream-Den
27%inclusion55 decks205 decks
25%synergy
Entity Tracker
26%inclusion54 decks205 decks
20%synergy
Drannith Magistrate
25%inclusion52 decks205 decks
17%synergy
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Ledger Shredder
24%inclusion49 decks205 decks
15%synergy
Inquisitive Glimmer
23%inclusion48 decks205 decks
16%synergy
Auriok Salvagers
23%inclusion48 decks205 decks
23%synergy
Mesa Enchantress
22%inclusion46 decks205 decks
13%synergy
Scrabbling Skullcrab
21%inclusion44 decks205 decks
20%synergy
Phyrexian Metamorph
20%inclusion41 decks205 decks
11%synergy
Grim Guardian
20%inclusion41 decks205 decks
17%synergy
Hedron Crab
19%inclusion39 decks205 decks
18%synergy
Gravebreaker Lamia
19%inclusion38 decks205 decks
18%synergy
Talion, the Kindly Lord
19%inclusion38 decks205 decks
10%synergy
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Demon of Fate's Design
18%inclusion37 decks205 decks
13%synergy
Overlord of the Balemurk
18%inclusion37 decks205 decks
16%synergy
Starfield Mystic
18%inclusion36 decks205 decks
11%synergy
Psychic Frog
16%inclusion33 decks205 decks
9%synergy
Faerie Mastermind
16%inclusion32 decks205 decks
6%synergy
Fear of Sleep Paralysis
15%inclusion30 decks205 decks
9%synergy
Zur the Enchanter
15%inclusion30 decks205 decks
9%synergy
Fear of Impostors
14%inclusion29 decks205 decks
13%synergy
Tataru Taru
14%inclusion13 decks92 decks
6%synergy
Overlord of the Floodpits
14%inclusion28 decks205 decks
10%synergy
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Doomwake Giant
14%inclusion28 decks205 decks
8%synergy
Leonin Relic-Warder
14%inclusion28 decks205 decks
13%synergy
Zur, Eternal Schemer
13%inclusion27 decks205 decks
10%synergy
Ondu Spiritdancer
13%inclusion27 decks205 decks
7%synergy
Ghostly Pilferer
12%inclusion25 decks205 decks
5%synergy
Victor, Valgavoth's Seneschal
12%inclusion24 decks205 decks
10%synergy
Pollywog Prodigy
12%inclusion24 decks205 decks
8%synergy
Moon-Blessed Cleric
11%inclusion22 decks205 decks
6%synergy
Ghostly Dancers
11%inclusion22 decks205 decks
8%synergy
Heliod, the Radiant Dawn
10%inclusion21 decks205 decks
6%synergy
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Snapcaster Mage
9.3%inclusion19 decks205 decks
7%synergy
Laboratory Maniac
9.3%inclusion19 decks205 decks
6%synergy
Lucy MacLean, Positively Armed
8.3%inclusion1 decks12 decks
8%synergy
Hoarding Broodlord
8.3%inclusion17 decks205 decks
6%synergy
Enduring Curiosity
8.3%inclusion17 decks205 decks
0%synergy
Gremlin Tamer
7.8%inclusion16 decks205 decks
7%synergy
Balemurk Leech
7.8%inclusion16 decks205 decks
7%synergy
Instants
Flusterstorm
55%inclusion112 decks205 decks
46%synergy
An Offer You Can't Refuse
50%inclusion102 decks205 decks
23%synergy
Mystical Tutor
50%inclusion102 decks205 decks
38%synergy
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Fierce Guardianship
49%inclusion101 decks205 decks
29%synergy
Mental Misstep
48%inclusion99 decks205 decks
41%synergy
Mindbreak Trap
48%inclusion99 decks205 decks
41%synergy
Pact of Negation
48%inclusion98 decks205 decks
40%synergy
Intuition
47%inclusion97 decks205 decks
46%synergy
Borne Upon a Wind
47%inclusion96 decks205 decks
42%synergy
Cyclonic Rift
44%inclusion91 decks205 decks
20%synergy
Cabal Ritual
43%inclusion89 decks205 decks
40%synergy
Mana Drain
28%inclusion58 decks205 decks
11%synergy
Sink into Stupor
28%inclusion57 decks205 decks
15%synergy
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Chain of Vapor
26%inclusion54 decks205 decks
23%synergy
Gifts Ungiven
26%inclusion54 decks205 decks
24%synergy
Into the Flood Maw
26%inclusion54 decks205 decks
23%synergy
Counterspell
22%inclusion46 decks205 decks
-19%synergy
Path to Exile
20%inclusion40 decks205 decks
-23%synergy
Dovin's Veto
17%inclusion34 decks205 decks
-9%synergy
Retraction Helix
15%inclusion30 decks205 decks
14%synergy
Brain Freeze
14%inclusion28 decks205 decks
13%synergy
Culling the Weak
12%inclusion25 decks205 decks
11%synergy
Arcane Denial
12%inclusion25 decks205 decks
-8%synergy
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Ad Nauseam
12%inclusion24 decks205 decks
9%synergy
Frantic Search
9.3%inclusion19 decks205 decks
-8%synergy
Brainstorm
9.3%inclusion19 decks205 decks
-8%synergy
Darkblast
9.3%inclusion19 decks205 decks
9%synergy
Banishing Knack
8.8%inclusion18 decks205 decks
8%synergy
Deadly Rollick
8.8%inclusion18 decks205 decks
-6%synergy
Dispel
8.3%inclusion17 decks205 decks
5%synergy
Strix Serenade
8.3%inclusion17 decks205 decks
5%synergy
Sacrifice
7.8%inclusion16 decks205 decks
7%synergy
Saw in Half
7.8%inclusion16 decks205 decks
6%synergy
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Muddle the Mixture
7.3%inclusion15 decks205 decks
3%synergy
Void Rend
7.3%inclusion15 decks205 decks
-27%synergy
Negate
6.3%inclusion13 decks205 decks
-10%synergy
Thirst for Meaning
6.3%inclusion13 decks205 decks
5%synergy
Fell the Profane
6.3%inclusion13 decks205 decks
-2%synergy
Teferi's Protection
6.3%inclusion13 decks205 decks
-10%synergy
Lim-Dûl's Vault
5.9%inclusion12 decks205 decks
3%synergy
Sorceries
Imperial Seal
47%inclusion96 decks205 decks
39%synergy
Reanimate
36%inclusion73 decks205 decks
20%synergy
Toxic Deluge
34%inclusion69 decks205 decks
14%synergy
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Windfall
30%inclusion61 decks205 decks
16%synergy
Lively Dirge
22%inclusion46 decks205 decks
21%synergy
Beseech the Mirror
18%inclusion37 decks205 decks
14%synergy
Demonic Counsel
17%inclusion34 decks205 decks
16%synergy
Unmarked Grave
14%inclusion28 decks205 decks
12%synergy
Mnemonic Betrayal
12%inclusion25 decks205 decks
9%synergy
Singularity Rupture
11%inclusion8 decks73 decks
9%synergy
Diabolic Intent
8.8%inclusion18 decks205 decks
4%synergy
Redress Fate
8.3%inclusion17 decks205 decks
2%synergy
Yawgmoth's Will
8.3%inclusion17 decks205 decks
7%synergy
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Cabal Therapy
7.8%inclusion16 decks205 decks
8%synergy
Idyllic Tutor
7.3%inclusion15 decks205 decks
3%synergy
Buried Alive
7.3%inclusion15 decks205 decks
3%synergy
Damn
7.3%inclusion15 decks205 decks
-13%synergy
Supreme Verdict
6.8%inclusion14 decks205 decks
-8%synergy
Dance of the Manse
6.8%inclusion14 decks205 decks
3%synergy
Praetor's Grasp
5.9%inclusion12 decks205 decks
3%synergy
Grim Tutor
5.9%inclusion12 decks205 decks
2%synergy
Utility Artifacts
The One Ring
52%inclusion106 decks205 decks
38%synergy
Wishclaw Talisman
46%inclusion95 decks205 decks
38%synergy
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Mesmeric Orb
9.3%inclusion19 decks205 decks
8%synergy
Sensei's Divining Top
6.8%inclusion14 decks205 decks
-3%synergy
Cursed Totem
6.8%inclusion14 decks205 decks
5%synergy
Agatha's Soul Cauldron
5.4%inclusion11 decks205 decks
5%synergy
Isochron Scepter
5.4%inclusion11 decks205 decks
3%synergy
Enchantments
Necropotence
50%inclusion103 decks205 decks
44%synergy
Tinybones Joins Up
47%inclusion97 decks205 decks
46%synergy
Touch the Spirit Realm
41%inclusion84 decks205 decks
38%synergy
Amphibian Downpour
40%inclusion83 decks205 decks
36%synergy
Mirrormade
39%inclusion79 decks205 decks
29%synergy
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The Meathook Massacre
27%inclusion55 decks205 decks
23%synergy
Static Prison
27%inclusion55 decks205 decks
26%synergy
Copy Artifact
23%inclusion47 decks205 decks
22%synergy
Propaganda
20%inclusion42 decks205 decks
-7%synergy
Seal of Cleansing
18%inclusion37 decks205 decks
17%synergy
Sphere of Safety
18%inclusion36 decks205 decks
8%synergy
Grasp of Fate
17%inclusion34 decks205 decks
10%synergy
Ghostly Prison
16%inclusion32 decks205 decks
-6%synergy
Chthonian Nightmare
15%inclusion31 decks205 decks
15%synergy
Stillness in Motion
15%inclusion17 decks116 decks
14%synergy
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Secret Arcade // Dusty Parlor
15%inclusion30 decks205 decks
10%synergy
Founding the Third Path
14%inclusion29 decks205 decks
14%synergy
Counterbalance
14%inclusion28 decks205 decks
12%synergy
Steal Enchantment
14%inclusion28 decks205 decks
13%synergy
Estrid's Invocation
13%inclusion27 decks205 decks
9%synergy
Trouble in Pairs
13%inclusion27 decks205 decks
8%synergy
Copy Enchantment
13%inclusion26 decks205 decks
8%synergy
Teval's Judgment
13%inclusion15 decks120 decks
12%synergy
Monologue Tax
12%inclusion25 decks205 decks
6%synergy
Cemetery Tampering
11%inclusion23 decks205 decks
10%synergy
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Seal of Removal
11%inclusion22 decks205 decks
10%synergy
Starfield of Nyx
10%inclusion20 decks205 decks
6%synergy
Leyline of Anticipation
10%inclusion20 decks205 decks
5%synergy
Out of the Tombs
9.3%inclusion19 decks205 decks
9%synergy
Enchanted Evening
9.3%inclusion19 decks205 decks
8%synergy
The Tale of Tamiyo
8.8%inclusion18 decks205 decks
8%synergy
Darksteel Mutation
8.3%inclusion17 decks205 decks
2%synergy
Sigil of the Empty Throne
8.3%inclusion17 decks205 decks
2%synergy
Aura of Silence
8.3%inclusion17 decks205 decks
5%synergy
Phyrexian Arena
8.3%inclusion17 decks205 decks
-6%synergy
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Black Market Connections
7.8%inclusion16 decks205 decks
-6%synergy
Chains of Mephistopheles
7.8%inclusion16 decks205 decks
8%synergy
Greater Auramancy
7.3%inclusion15 decks205 decks
3%synergy
Cacophony Unleashed
6.8%inclusion14 decks205 decks
5%synergy
Court of Cunning
6.8%inclusion14 decks205 decks
6%synergy
Nowhere to Run
6.8%inclusion14 decks205 decks
6%synergy
Imprisoned in the Moon
6.3%inclusion13 decks205 decks
0%synergy
All That Glitters
6.3%inclusion13 decks205 decks
-2%synergy
Authority of the Consuls
5.9%inclusion12 decks205 decks
-6%synergy
Timely Ward
5.9%inclusion12 decks205 decks
1%synergy
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Dance of Many
5.4%inclusion11 decks205 decks
5%synergy
Sheltered by Ghosts
5.4%inclusion11 decks205 decks
3%synergy
Bloodchief Ascension
5.4%inclusion11 decks205 decks
0%synergy
Planeswalkers
Teferi, Time Raveler
40%inclusion81 decks205 decks
31%synergy
Utility Lands
Otawara, Soaring City
64%inclusion132 decks205 decks
45%synergy
Hall of Heliod's Generosity
31%inclusion64 decks205 decks
18%synergy
Urza's Saga
31%inclusion64 decks205 decks
19%synergy
Emergence Zone
23%inclusion47 decks205 decks
21%synergy
Cephalid Coliseum
20%inclusion41 decks205 decks
16%synergy
Takenuma, Abandoned Mire
17%inclusion35 decks205 decks
11%synergy
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Minamo, School at Water's Edge
16%inclusion33 decks205 decks
12%synergy
Bojuka Bog
16%inclusion32 decks205 decks
-12%synergy
Urborg, Tomb of Yawgmoth
9.3%inclusion19 decks205 decks
-4%synergy
Serra's Sanctum
8.8%inclusion18 decks205 decks
7%synergy
City of Traitors
6.3%inclusion13 decks205 decks
5%synergy
Reliquary Tower
5.4%inclusion11 decks205 decks
-28%synergy
Phyrexian Tower
5.4%inclusion11 decks205 decks
2%synergy
Mana Artifacts
Sol Ring
97%inclusion198 decks205 decks
7%synergy
Arcane Signet
93%inclusion191 decks205 decks
5%synergy
Talisman of Dominance
74%inclusion152 decks205 decks
25%synergy
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Lotus Petal
60%inclusion123 decks205 decks
49%synergy
Fellwar Stone
59%inclusion121 decks205 decks
25%synergy
Talisman of Progress
56%inclusion115 decks205 decks
13%synergy
Mox Diamond
50%inclusion102 decks205 decks
43%synergy
Mox Opal
48%inclusion98 decks205 decks
39%synergy
Talisman of Hierarchy
42%inclusion86 decks205 decks
-2%synergy
Lion's Eye Diamond
40%inclusion82 decks205 decks
38%synergy
Mox Amber
27%inclusion55 decks205 decks
21%synergy
Grim Monolith
22%inclusion46 decks205 decks
19%synergy
Orzhov Signet
14%inclusion28 decks205 decks
-20%synergy
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Azorius Signet
13%inclusion26 decks205 decks
-19%synergy
Dimir Signet
12%inclusion25 decks205 decks
-20%synergy
Mind Stone
7.3%inclusion15 decks205 decks
-5%synergy
Commander's Sphere
5.4%inclusion11 decks205 decks
-13%synergy
Lands
Command Tower
96%inclusion197 decks205 decks
4%synergy
Hallowed Fountain
80%inclusion165 decks205 decks
31%synergy
Watery Grave
80%inclusion165 decks205 decks
30%synergy
Flooded Strand
80%inclusion164 decks205 decks
42%synergy
Godless Shrine
80%inclusion163 decks205 decks
29%synergy
Polluted Delta
79%inclusion162 decks205 decks
41%synergy
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Marsh Flats
73%inclusion150 decks205 decks
37%synergy
Island
68%inclusion139 decks205 decks
-25%synergy
Swamp
65%inclusion133 decks205 decks
-27%synergy
Exotic Orchard
63%inclusion129 decks205 decks
4%synergy
City of Brass
59%inclusion121 decks205 decks
44%synergy
Plains
57%inclusion116 decks205 decks
-35%synergy
Mana Confluence
57%inclusion116 decks205 decks
43%synergy
Tundra
56%inclusion115 decks205 decks
40%synergy
Underground Sea
56%inclusion114 decks205 decks
40%synergy
Scrubland
55%inclusion113 decks205 decks
39%synergy
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Morphic Pool
54%inclusion110 decks205 decks
19%synergy
Bloodstained Mire
54%inclusion110 decks205 decks
43%synergy
Gemstone Caverns
54%inclusion110 decks205 decks
46%synergy
Sea of Clouds
49%inclusion101 decks205 decks
14%synergy
Undercity Sewers
48%inclusion99 decks205 decks
34%synergy
Misty Rainforest
48%inclusion99 decks205 decks
37%synergy
Verdant Catacombs
48%inclusion99 decks205 decks
38%synergy
Scalding Tarn
48%inclusion98 decks205 decks
37%synergy
Windswept Heath
45%inclusion92 decks205 decks
35%synergy
Vault of Champions
44%inclusion90 decks205 decks
11%synergy
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Arid Mesa
39%inclusion79 decks205 decks
29%synergy
Underground River
30%inclusion61 decks205 decks
-4%synergy
Sink into Stupor
28%inclusion57 decks205 decks
15%synergy
Adarkar Wastes
28%inclusion57 decks205 decks
-3%synergy
Caves of Koilos
27%inclusion56 decks205 decks
-8%synergy
Meticulous Archive
26%inclusion53 decks205 decks
12%synergy
Raffine's Tower
24%inclusion49 decks205 decks
-17%synergy
Arcane Sanctum
24%inclusion49 decks205 decks
-31%synergy
Shadowy Backstreet
22%inclusion46 decks205 decks
10%synergy
Glacial Fortress
20%inclusion40 decks205 decks
-21%synergy
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Isolated Chapel
15%inclusion31 decks205 decks
-24%synergy
Gloomlake Verge
14%inclusion29 decks205 decks
3%synergy
Drowned Catacomb
14%inclusion28 decks205 decks
-23%synergy
Contaminated Landscape
12%inclusion25 decks205 decks
-2%synergy
Floodfarm Verge
12%inclusion25 decks205 decks
1%synergy
Starting Town
12%inclusion11 decks92 decks
8%synergy
Prairie Stream
12%inclusion24 decks205 decks
-29%synergy
Terramorphic Expanse
11%inclusion22 decks205 decks
-6%synergy
Sunken Hollow
11%inclusion22 decks205 decks
-29%synergy
Forbidden Orchard
11%inclusion22 decks205 decks
8%synergy
Please consider supporting us on Patreon to remove ads for only $2/month.
Spire of Industry
10%inclusion21 decks205 decks
2%synergy
Valgavoth's Lair
10%inclusion21 decks205 decks
7%synergy
Cavern of Souls
10%inclusion21 decks205 decks
4%synergy
Evolving Wilds
10%inclusion21 decks205 decks
-15%synergy
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