The Master of Keys (Commander) - Expensive Optimized

The Master of Keys
Rank #303
33decks
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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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Sorceries
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Enchantments
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Utility Lands
Mana Artifacts
Lands
Back to Top
Animate Dead
94%inclusion31 decks33 decks
84%synergy
Necromancy
88%inclusion29 decks33 decks
83%synergy
Abdel Adrian, Gorion's Ward
85%inclusion28 decks33 decks
83%synergy
Entomb
88%inclusion29 decks33 decks
81%synergy
Dress Down
82%inclusion27 decks33 decks
80%synergy
Mystic Remora
94%inclusion31 decks33 decks
73%synergy
Dance of the Dead
73%inclusion24 decks33 decks
71%synergy
Ripples of Undeath
73%inclusion24 decks33 decks
70%synergy
Tinybones Joins Up
70%inclusion23 decks33 decks
69%synergy
Thassa's Oracle
76%inclusion25 decks33 decks
67%synergy
Top Cards
Dark Ritual
85%inclusion28 decks33 decks
65%synergy
Esper Sentinel
82%inclusion27 decks33 decks
55%synergy
Swords to Plowshares
73%inclusion24 decks33 decks
5%synergy
Imperial Seal
70%inclusion23 decks33 decks
63%synergy
Sevinne's Reclamation
70%inclusion23 decks33 decks
61%synergy
Silence
70%inclusion23 decks33 decks
60%synergy
Orcish Bowmasters
70%inclusion23 decks33 decks
60%synergy
The One Ring
67%inclusion22 decks33 decks
54%synergy
Intuition
67%inclusion22 decks33 decks
65%synergy
Blind Obedience
67%inclusion22 decks33 decks
55%synergy
Game Changers
Vampiric Tutor
100%inclusion33 decks33 decks
83%synergy
Rhystic Study
97%inclusion32 decks33 decks
66%synergy
Smothering Tithe
94%inclusion31 decks33 decks
64%synergy
Demonic Tutor
94%inclusion31 decks33 decks
74%synergy
Enlightened Tutor
94%inclusion31 decks33 decks
75%synergy
Ancient Tomb
91%inclusion30 decks33 decks
79%synergy
Chrome Mox
88%inclusion29 decks33 decks
79%synergy
Mox Diamond
88%inclusion29 decks33 decks
81%synergy
Mana Vault
85%inclusion28 decks33 decks
76%synergy
Force of Will
79%inclusion26 decks33 decks
67%synergy
Creatures
Valley Floodcaller
67%inclusion22 decks33 decks
63%synergy
Lotho, Corrupt Shirriff
64%inclusion21 decks33 decks
47%synergy
Grand Abolisher
64%inclusion21 decks33 decks
49%synergy
Ranger-Captain of Eos
52%inclusion17 decks33 decks
46%synergy
Wan Shi Tong, Librarian
50%inclusion8 decks16 decks
45%synergy
Opposition Agent
48%inclusion16 decks33 decks
41%synergy
Displacer Kitten
42%inclusion14 decks33 decks
36%synergy
Hullbreaker Horror
42%inclusion14 decks33 decks
36%synergy
Auriok Salvagers
42%inclusion14 decks33 decks
42%synergy
Drannith Magistrate
39%inclusion13 decks33 decks
32%synergy
Lurrus of the Dream-Den
36%inclusion12 decks33 decks
35%synergy
Voice of Victory
35%inclusion9 decks26 decks
26%synergy
Ledger Shredder
33%inclusion11 decks33 decks
25%synergy
Inquisitive Glimmer
30%inclusion10 decks33 decks
23%synergy
Mockingbird
30%inclusion10 decks33 decks
26%synergy
Starfield Mystic
24%inclusion8 decks33 decks
18%synergy
Entity Tracker
24%inclusion8 decks33 decks
18%synergy
Psychic Frog
24%inclusion8 decks33 decks
17%synergy
Mesa Enchantress
24%inclusion8 decks33 decks
16%synergy
Archivist of Oghma
21%inclusion7 decks33 decks
15%synergy
Scrabbling Skullcrab
21%inclusion7 decks33 decks
20%synergy
Victor, Valgavoth's Seneschal
21%inclusion7 decks33 decks
19%synergy
Phyrexian Metamorph
18%inclusion6 decks33 decks
10%synergy
Overlord of the Balemurk
18%inclusion6 decks33 decks
16%synergy
Talion, the Kindly Lord
18%inclusion6 decks33 decks
11%synergy
Faerie Mastermind
18%inclusion6 decks33 decks
8%synergy
Hoarding Broodlord
15%inclusion5 decks33 decks
13%synergy
Hedron Crab
15%inclusion5 decks33 decks
15%synergy
Grim Guardian
15%inclusion5 decks33 decks
13%synergy
Ondu Spiritdancer
15%inclusion5 decks33 decks
9%synergy
Tataru Taru
13%inclusion3 decks24 decks
4%synergy
Exhibition Tidecaller
13%inclusion1 decks8 decks
12%synergy
Eiganjo Dynastorian
13%inclusion1 decks8 decks
11%synergy
Demon of Fate's Design
12%inclusion4 decks33 decks
7%synergy
Pollywog Prodigy
12%inclusion4 decks33 decks
9%synergy
Fear of Sleep Paralysis
12%inclusion4 decks33 decks
7%synergy
Heliod, the Radiant Dawn
12%inclusion4 decks33 decks
9%synergy
Zur, Eternal Schemer
12%inclusion4 decks33 decks
9%synergy
Zur the Enchanter
12%inclusion4 decks33 decks
7%synergy
Ghostly Pilferer
12%inclusion4 decks33 decks
5%synergy
Gravebreaker Lamia
9.1%inclusion3 decks33 decks
8%synergy
Snapcaster Mage
9.1%inclusion3 decks33 decks
7%synergy
Overlord of the Floodpits
9.1%inclusion3 decks33 decks
6%synergy
Fear of Impostors
9.1%inclusion3 decks33 decks
8%synergy
Moon-Blessed Cleric
9.1%inclusion3 decks33 decks
4%synergy
Leonin Relic-Warder
9.1%inclusion3 decks33 decks
9%synergy
Enduring Curiosity
9.1%inclusion3 decks33 decks
1%synergy
Doomwake Giant
9.1%inclusion3 decks33 decks
3%synergy
Volatile Stormdrake
6.1%inclusion2 decks33 decks
5%synergy
Sheoldred, the Apocalypse
6.1%inclusion2 decks33 decks
-3%synergy
Instants
Force of Negation
67%inclusion22 decks33 decks
55%synergy
Demonic Consultation
64%inclusion21 decks33 decks
56%synergy
Flusterstorm
64%inclusion21 decks33 decks
56%synergy
Pact of Negation
64%inclusion21 decks33 decks
56%synergy
Tainted Pact
61%inclusion20 decks33 decks
54%synergy
Mental Misstep
58%inclusion19 decks33 decks
51%synergy
Mindbreak Trap
58%inclusion19 decks33 decks
51%synergy
Fierce Guardianship
58%inclusion19 decks33 decks
37%synergy
Cabal Ritual
55%inclusion18 decks33 decks
51%synergy
Borne Upon a Wind
55%inclusion18 decks33 decks
50%synergy
Swan Song
52%inclusion17 decks33 decks
31%synergy
Mystical Tutor
48%inclusion16 decks33 decks
38%synergy
Cyclonic Rift
45%inclusion15 decks33 decks
23%synergy
Gifts Ungiven
39%inclusion13 decks33 decks
37%synergy
An Offer You Can't Refuse
33%inclusion11 decks33 decks
6%synergy
Mana Drain
33%inclusion11 decks33 decks
16%synergy
Into the Flood Maw
33%inclusion11 decks33 decks
30%synergy
Chain of Vapor
27%inclusion9 decks33 decks
24%synergy
Sink into Stupor
21%inclusion7 decks33 decks
8%synergy
Retraction Helix
18%inclusion6 decks33 decks
17%synergy
Path to Exile
18%inclusion6 decks33 decks
-24%synergy
Teferi's Protection
15%inclusion5 decks33 decks
-1%synergy
Banishing Knack
15%inclusion5 decks33 decks
15%synergy
Saw in Half
15%inclusion5 decks33 decks
13%synergy
Orim's Chant
12%inclusion4 decks33 decks
10%synergy
Brain Freeze
12%inclusion4 decks33 decks
12%synergy
Culling the Weak
12%inclusion4 decks33 decks
11%synergy
Counterspell
12%inclusion4 decks33 decks
-30%synergy
Deadly Rollick
9.1%inclusion3 decks33 decks
-7%synergy
Sacrifice
9.1%inclusion3 decks33 decks
8%synergy
Brainstorm
9.1%inclusion3 decks33 decks
-8%synergy
Darkblast
9.1%inclusion3 decks33 decks
9%synergy
Ad Nauseam
9.1%inclusion3 decks33 decks
7%synergy
Frantic Search
6.1%inclusion2 decks33 decks
-13%synergy
Snuff Out
6.1%inclusion2 decks33 decks
-4%synergy
Lim-Dûl's Vault
6.1%inclusion2 decks33 decks
3%synergy
Consider
6.1%inclusion2 decks33 decks
4%synergy
Void Rend
6.1%inclusion2 decks33 decks
-29%synergy
Sorceries
Reanimate
33%inclusion11 decks33 decks
17%synergy
Toxic Deluge
24%inclusion8 decks33 decks
5%synergy
Lively Dirge
21%inclusion7 decks33 decks
20%synergy
Replenish
21%inclusion7 decks33 decks
19%synergy
Beseech the Mirror
21%inclusion7 decks33 decks
17%synergy
Cabal Therapy
18%inclusion6 decks33 decks
18%synergy
Mnemonic Betrayal
18%inclusion6 decks33 decks
15%synergy
Windfall
15%inclusion5 decks33 decks
2%synergy
Idyllic Tutor
15%inclusion5 decks33 decks
11%synergy
Redress Fate
12%inclusion4 decks33 decks
7%synergy
Brilliant Restoration
6.1%inclusion2 decks33 decks
4%synergy
Demonic Counsel
6.1%inclusion2 decks33 decks
5%synergy
Grim Tutor
6.1%inclusion2 decks33 decks
2%synergy
Dance of the Manse
6.1%inclusion2 decks33 decks
3%synergy
Utility Artifacts
Wishclaw Talisman
48%inclusion16 decks33 decks
41%synergy
Mesmeric Orb
18%inclusion6 decks33 decks
17%synergy
Sensei's Divining Top
12%inclusion4 decks33 decks
3%synergy
Vexing Bauble
12%inclusion4 decks33 decks
10%synergy
Whip of Erebos
6.1%inclusion2 decks33 decks
4%synergy
Altar of the Brood
6.1%inclusion2 decks33 decks
5%synergy
Damping Sphere
6.1%inclusion2 decks33 decks
6%synergy
Codex Shredder
6.1%inclusion2 decks33 decks
6%synergy
Enchantments
Necropotence
64%inclusion21 decks33 decks
57%synergy
Amphibian Downpour
58%inclusion19 decks33 decks
53%synergy
Copy Artifact
39%inclusion13 decks33 decks
38%synergy
The Meathook Massacre
33%inclusion11 decks33 decks
30%synergy
Mirrormade
27%inclusion9 decks33 decks
17%synergy
Steal Enchantment
24%inclusion8 decks33 decks
23%synergy
Counterbalance
21%inclusion7 decks33 decks
20%synergy
Founding the Third Path
21%inclusion7 decks33 decks
21%synergy
Touch the Spirit Realm
21%inclusion7 decks33 decks
19%synergy
Chthonian Nightmare
21%inclusion7 decks33 decks
21%synergy
Ghostly Prison
21%inclusion7 decks33 decks
-2%synergy
Starfield of Nyx
18%inclusion6 decks33 decks
14%synergy
Sphere of Safety
18%inclusion6 decks33 decks
9%synergy
Static Prison
18%inclusion6 decks33 decks
18%synergy
Copy Enchantment
18%inclusion6 decks33 decks
13%synergy
Trouble in Pairs
18%inclusion6 decks33 decks
13%synergy
Darksteel Mutation
15%inclusion5 decks33 decks
9%synergy
Estrid's Invocation
15%inclusion5 decks33 decks
10%synergy
Cemetery Tampering
15%inclusion5 decks33 decks
14%synergy
Propaganda
15%inclusion5 decks33 decks
-14%synergy
Bloodchief Ascension
15%inclusion5 decks33 decks
9%synergy
Grasp of Fate
12%inclusion4 decks33 decks
6%synergy
Out of the Tombs
12%inclusion4 decks33 decks
12%synergy
Authority of the Consuls
12%inclusion4 decks33 decks
-1%synergy
Monologue Tax
12%inclusion4 decks33 decks
6%synergy
Seal of Cleansing
12%inclusion4 decks33 decks
11%synergy
Enchanted Evening
12%inclusion4 decks33 decks
11%synergy
Black Market Connections
12%inclusion4 decks33 decks
-3%synergy
Land Tax
12%inclusion4 decks33 decks
6%synergy
Chains of Mephistopheles
12%inclusion4 decks33 decks
12%synergy
Secret Arcade // Dusty Parlor
12%inclusion4 decks33 decks
8%synergy
Stillness in Motion
12%inclusion3 decks25 decks
12%synergy
Sigil of the Empty Throne
9.1%inclusion3 decks33 decks
3%synergy
Leyline of Anticipation
9.1%inclusion3 decks33 decks
5%synergy
Aura of Silence
9.1%inclusion3 decks33 decks
6%synergy
Shark Typhoon
9.1%inclusion3 decks33 decks
3%synergy
Greater Auramancy
9.1%inclusion3 decks33 decks
5%synergy
Seal of Removal
9.1%inclusion3 decks33 decks
8%synergy
Cacophony Unleashed
6.1%inclusion2 decks33 decks
4%synergy
The Cruelty of Gix
6.1%inclusion2 decks33 decks
6%synergy
Extravagant Replication
6.1%inclusion2 decks33 decks
1%synergy
Mind Over Matter
6.1%inclusion2 decks33 decks
6%synergy
Phyrexian Unlife
6.1%inclusion2 decks33 decks
4%synergy
Exquisite Blood
6.1%inclusion2 decks33 decks
-1%synergy
All That Glitters
6.1%inclusion2 decks33 decks
-2%synergy
Dovescape
6.1%inclusion2 decks33 decks
6%synergy
Solemnity
6.1%inclusion2 decks33 decks
3%synergy
Power Artifact
6.1%inclusion2 decks33 decks
6%synergy
Second Chance
6.1%inclusion2 decks33 decks
6%synergy
Sheltered by Ghosts
6.1%inclusion2 decks33 decks
3%synergy
Planeswalkers
Teferi, Time Raveler
42%inclusion14 decks33 decks
34%synergy
Tezzeret, Cruel Captain
5.0%inclusion1 decks20 decks
3%synergy
Utility Lands
Otawara, Soaring City
79%inclusion26 decks33 decks
60%synergy
Urza's Saga
39%inclusion13 decks33 decks
28%synergy
Serra's Sanctum
33%inclusion11 decks33 decks
32%synergy
Hall of Heliod's Generosity
24%inclusion8 decks33 decks
11%synergy
Takenuma, Abandoned Mire
24%inclusion8 decks33 decks
18%synergy
Emergence Zone
24%inclusion8 decks33 decks
22%synergy
Cephalid Coliseum
21%inclusion7 decks33 decks
18%synergy
Minamo, School at Water's Edge
15%inclusion5 decks33 decks
11%synergy
City of Traitors
12%inclusion4 decks33 decks
11%synergy
Urborg, Tomb of Yawgmoth
12%inclusion4 decks33 decks
-1%synergy
Phyrexian Tower
9.1%inclusion3 decks33 decks
6%synergy
Reliquary Tower
9.1%inclusion3 decks33 decks
-25%synergy
Bojuka Bog
6.1%inclusion2 decks33 decks
-21%synergy
Academy Ruins
6.1%inclusion2 decks33 decks
-1%synergy
Uthros, Titanic Godcore
5.3%inclusion1 decks19 decks
2%synergy
Mana Artifacts
Sol Ring
94%inclusion31 decks33 decks
4%synergy
Arcane Signet
91%inclusion30 decks33 decks
3%synergy
Lotus Petal
73%inclusion24 decks33 decks
62%synergy
Talisman of Dominance
64%inclusion21 decks33 decks
14%synergy
Lion's Eye Diamond
61%inclusion20 decks33 decks
59%synergy
Fellwar Stone
58%inclusion19 decks33 decks
25%synergy
Mox Opal
58%inclusion19 decks33 decks
49%synergy
Talisman of Progress
42%inclusion14 decks33 decks
-2%synergy
Talisman of Hierarchy
39%inclusion13 decks33 decks
-5%synergy
Grim Monolith
30%inclusion10 decks33 decks
27%synergy
Mox Amber
27%inclusion9 decks33 decks
21%synergy
The Soul Stone
11%inclusion2 decks19 decks
8%synergy
Basalt Monolith
9.1%inclusion3 decks33 decks
7%synergy
Dimir Signet
9.1%inclusion3 decks33 decks
-21%synergy
Azorius Signet
9.1%inclusion3 decks33 decks
-20%synergy
Springleaf Drum
6.1%inclusion2 decks33 decks
4%synergy
Orzhov Signet
6.1%inclusion2 decks33 decks
-25%synergy
Lands
Command Tower
100%inclusion33 decks33 decks
7%synergy
Tundra
100%inclusion33 decks33 decks
84%synergy
Underground Sea
100%inclusion33 decks33 decks
84%synergy
Scrubland
100%inclusion33 decks33 decks
84%synergy
Watery Grave
97%inclusion32 decks33 decks
46%synergy
Marsh Flats
94%inclusion31 decks33 decks
58%synergy
Polluted Delta
94%inclusion31 decks33 decks
56%synergy
Godless Shrine
91%inclusion30 decks33 decks
39%synergy
Hallowed Fountain
91%inclusion30 decks33 decks
40%synergy
Flooded Strand
91%inclusion30 decks33 decks
52%synergy
Mana Confluence
76%inclusion25 decks33 decks
62%synergy
Bloodstained Mire
76%inclusion25 decks33 decks
65%synergy
City of Brass
73%inclusion24 decks33 decks
57%synergy
Undercity Sewers
67%inclusion22 decks33 decks
52%synergy
Misty Rainforest
67%inclusion22 decks33 decks
56%synergy
Verdant Catacombs
67%inclusion22 decks33 decks
57%synergy
Gemstone Caverns
64%inclusion21 decks33 decks
56%synergy
Arid Mesa
64%inclusion21 decks33 decks
54%synergy
Morphic Pool
61%inclusion20 decks33 decks
27%synergy
Vault of Champions
58%inclusion19 decks33 decks
25%synergy
Windswept Heath
55%inclusion18 decks33 decks
45%synergy
Sea of Clouds
55%inclusion18 decks33 decks
20%synergy
Scalding Tarn
55%inclusion18 decks33 decks
44%synergy
Island
48%inclusion16 decks33 decks
-45%synergy
Exotic Orchard
42%inclusion14 decks33 decks
-16%synergy
Swamp
42%inclusion14 decks33 decks
-49%synergy
Plains
39%inclusion13 decks33 decks
-53%synergy
Raffine's Tower
36%inclusion12 decks33 decks
-4%synergy
Meticulous Archive
36%inclusion12 decks33 decks
22%synergy
Shadowy Backstreet
33%inclusion11 decks33 decks
21%synergy
Sink into Stupor
21%inclusion7 decks33 decks
8%synergy
Cavern of Souls
18%inclusion6 decks33 decks
12%synergy
Forbidden Orchard
18%inclusion6 decks33 decks
16%synergy
Starting Town
17%inclusion4 decks24 decks
13%synergy
Caves of Koilos
15%inclusion5 decks33 decks
-21%synergy
Spire of Industry
15%inclusion5 decks33 decks
7%synergy
Underground River
15%inclusion5 decks33 decks
-20%synergy
Snow-Covered Swamp
15%inclusion5 decks33 decks
12%synergy
Snow-Covered Island
12%inclusion4 decks33 decks
9%synergy
Snow-Covered Plains
12%inclusion4 decks33 decks
9%synergy
Adarkar Wastes
12%inclusion4 decks33 decks
-20%synergy
Floodfarm Verge
12%inclusion4 decks33 decks
1%synergy
Bleachbone Verge
9.4%inclusion3 decks32 decks
1%synergy
Glacial Fortress
9.1%inclusion3 decks33 decks
-34%synergy
Valgavoth's Lair
9.1%inclusion3 decks33 decks
7%synergy
Arcane Sanctum
9.1%inclusion3 decks33 decks
-45%synergy
Brightclimb Pathway
6.1%inclusion2 decks33 decks
-0%synergy
Reflecting Pool
6.1%inclusion2 decks33 decks
-2%synergy
Hengegate Pathway
6.1%inclusion2 decks33 decks
0%synergy
Isolated Chapel
6.1%inclusion2 decks33 decks
-36%synergy
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