The Master of Keys (Commander) - Budget Optimized

The Master of Keys
Rank #303
33decks
As CommanderAs CardAverage DeckDecksView Precon
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Budget
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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
Utility Lands
Mana Artifacts
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Secret Arcade // Dusty Parlor
76%inclusion25 decks33 decks
71%synergy
Mesa Enchantress
79%inclusion26 decks33 decks
70%synergy
Inquisitive Glimmer
70%inclusion23 decks33 decks
63%synergy
Ondu Spiritdancer
67%inclusion22 decks33 decks
61%synergy
Starfield Mystic
67%inclusion22 decks33 decks
60%synergy
Mirrormade
70%inclusion23 decks33 decks
60%synergy
Demon of Fate's Design
64%inclusion21 decks33 decks
58%synergy
Scrabbling Skullcrab
58%inclusion19 decks33 decks
57%synergy
Fear of Sleep Paralysis
61%inclusion20 decks33 decks
56%synergy
Entity Tracker
58%inclusion19 decks33 decks
52%synergy
Top Cards
Swords to Plowshares
64%inclusion21 decks33 decks
-4%synergy
Sphere of Safety
55%inclusion18 decks33 decks
45%synergy
Gravebreaker Lamia
52%inclusion17 decks33 decks
50%synergy
Victor, Valgavoth's Seneschal
52%inclusion17 decks33 decks
50%synergy
Doomwake Giant
52%inclusion17 decks33 decks
46%synergy
Sigil of the Empty Throne
48%inclusion16 decks33 decks
43%synergy
Soaring Lightbringer
48%inclusion16 decks33 decks
44%synergy
Moon-Blessed Cleric
48%inclusion16 decks33 decks
44%synergy
Bottomless Pool // Locker Room
48%inclusion16 decks33 decks
47%synergy
Arcane Denial
45%inclusion15 decks33 decks
25%synergy
Game Changers
Gifts Ungiven
15%inclusion5 decks33 decks
13%synergy
Notion Thief
12%inclusion4 decks33 decks
6%synergy
Creatures
Ghostly Dancers
45%inclusion15 decks33 decks
43%synergy
Aminatou, Veil Piercer
42%inclusion14 decks33 decks
41%synergy
Fear of Impostors
39%inclusion13 decks33 decks
38%synergy
Archetype of Imagination
39%inclusion13 decks33 decks
35%synergy
Overlord of the Floodpits
36%inclusion12 decks33 decks
33%synergy
Skullsnap Nuisance
33%inclusion11 decks33 decks
33%synergy
Gremlin Tamer
33%inclusion11 decks33 decks
32%synergy
Nightmare Shepherd
30%inclusion10 decks33 decks
28%synergy
Solemn Simulacrum
27%inclusion9 decks33 decks
14%synergy
Athreos, Shroud-Veiled
27%inclusion9 decks33 decks
23%synergy
Ancient Cellarspawn
27%inclusion9 decks33 decks
24%synergy
Auramancer
27%inclusion9 decks33 decks
24%synergy
Silent Hallcreeper
24%inclusion8 decks33 decks
20%synergy
Abdel Adrian, Gorion's Ward
24%inclusion8 decks33 decks
23%synergy
Overlord of the Balemurk
21%inclusion7 decks33 decks
19%synergy
Grim Guardian
21%inclusion7 decks33 decks
19%synergy
Heliod, the Radiant Dawn
21%inclusion7 decks33 decks
18%synergy
Balemurk Leech
21%inclusion7 decks33 decks
21%synergy
Archon of Sun's Grace
18%inclusion6 decks33 decks
14%synergy
Enduring Curiosity
18%inclusion6 decks33 decks
10%synergy
Phenomenon Investigators
18%inclusion6 decks33 decks
18%synergy
Zur, Eternal Schemer
18%inclusion6 decks33 decks
15%synergy
Burnished Hart
18%inclusion6 decks33 decks
15%synergy
Mindwrack Harpy
18%inclusion6 decks33 decks
18%synergy
Zur the Enchanter
18%inclusion6 decks33 decks
13%synergy
Sage of Mysteries
15%inclusion5 decks33 decks
15%synergy
Hedron Crab
15%inclusion5 decks33 decks
15%synergy
Leonin Relic-Warder
15%inclusion5 decks33 decks
15%synergy
Nashi, Searcher in the Dark
15%inclusion5 decks33 decks
15%synergy
Optimistic Scavenger
12%inclusion4 decks33 decks
12%synergy
Metamorphosis Fanatic
12%inclusion4 decks33 decks
8%synergy
Malevolent Hermit
12%inclusion4 decks33 decks
11%synergy
Spirited Companion
12%inclusion4 decks33 decks
10%synergy
Laboratory Maniac
12%inclusion4 decks33 decks
9%synergy
Creeping Peeper
12%inclusion4 decks33 decks
12%synergy
Underworld Coinsmith
12%inclusion4 decks33 decks
11%synergy
Warehouse Tabby
12%inclusion4 decks33 decks
12%synergy
Verge Rangers
12%inclusion4 decks33 decks
11%synergy
Ghostly Pilferer
12%inclusion4 decks33 decks
5%synergy
Exhibition Tidecaller
10%inclusion1 decks10 decks
9%synergy
Starnheim Courser
9.1%inclusion3 decks33 decks
6%synergy
Fear of Infinity
9.1%inclusion3 decks33 decks
9%synergy
Fear of Isolation
9.1%inclusion3 decks33 decks
9%synergy
Protean Thaumaturge
9.1%inclusion3 decks33 decks
9%synergy
Lurrus of the Dream-Den
9.1%inclusion3 decks33 decks
8%synergy
Hydroelectric Specimen
9.1%inclusion3 decks33 decks
6%synergy
Overlord of the Mistmoors
9.1%inclusion3 decks33 decks
7%synergy
Braids, Arisen Nightmare
9.1%inclusion3 decks33 decks
8%synergy
Ledger Shredder
9.1%inclusion3 decks33 decks
0%synergy
Emet-Selch of the Third Seat
7.1%inclusion2 decks28 decks
-2%synergy
Instants
Inkshield
36%inclusion12 decks33 decks
26%synergy
Thirst for Meaning
33%inclusion11 decks33 decks
32%synergy
Utter End
33%inclusion11 decks33 decks
27%synergy
Counterspell
33%inclusion11 decks33 decks
-9%synergy
Otherworldly Gaze
27%inclusion9 decks33 decks
25%synergy
An Offer You Can't Refuse
21%inclusion7 decks33 decks
-7%synergy
Brainstorm
21%inclusion7 decks33 decks
4%synergy
Path to Exile
21%inclusion7 decks33 decks
-21%synergy
Dovin's Veto
15%inclusion5 decks33 decks
-11%synergy
Negate
15%inclusion5 decks33 decks
-1%synergy
Dark Ritual
15%inclusion5 decks33 decks
-5%synergy
Delay
15%inclusion5 decks33 decks
13%synergy
Muddle the Mixture
12%inclusion4 decks33 decks
9%synergy
Frantic Search
12%inclusion4 decks33 decks
-6%synergy
Telling Time
12%inclusion4 decks33 decks
10%synergy
Lim-Dûl's Vault
12%inclusion4 decks33 decks
9%synergy
Opt
12%inclusion4 decks33 decks
8%synergy
Get Out
12%inclusion4 decks33 decks
12%synergy
Mana Leak
12%inclusion4 decks33 decks
10%synergy
No More Lies
12%inclusion4 decks33 decks
11%synergy
Shred Memory
9.1%inclusion3 decks33 decks
9%synergy
Refute
9.1%inclusion3 decks33 decks
7%synergy
Return to Dust
9.1%inclusion3 decks33 decks
6%synergy
Fact or Fiction
9.1%inclusion3 decks33 decks
6%synergy
Darkblast
9.1%inclusion3 decks33 decks
9%synergy
Dispel
9.1%inclusion3 decks33 decks
6%synergy
Spell Pierce
9.1%inclusion3 decks33 decks
6%synergy
Soul Partition
6.1%inclusion2 decks33 decks
6%synergy
Consider
6.1%inclusion2 decks33 decks
4%synergy
Disenchant
6.1%inclusion2 decks33 decks
4%synergy
Miscast
6.1%inclusion2 decks33 decks
5%synergy
Waterlogged Teachings
6.1%inclusion2 decks33 decks
1%synergy
Murder
6.1%inclusion2 decks33 decks
4%synergy
Long River's Pull
6.1%inclusion2 decks33 decks
5%synergy
Sorceries
Redress Fate
39%inclusion13 decks33 decks
34%synergy
Sevinne's Reclamation
33%inclusion11 decks33 decks
24%synergy
Read the Bones
24%inclusion8 decks33 decks
20%synergy
Lively Dirge
21%inclusion7 decks33 decks
20%synergy
Terminus
21%inclusion7 decks33 decks
17%synergy
Extinguish All Hope
21%inclusion7 decks33 decks
20%synergy
Time Wipe
18%inclusion6 decks33 decks
12%synergy
Diabolic Vision
18%inclusion6 decks33 decks
16%synergy
Ponder
15%inclusion5 decks33 decks
6%synergy
Unmarked Grave
15%inclusion5 decks33 decks
14%synergy
Portent
15%inclusion5 decks33 decks
12%synergy
Windfall
12%inclusion4 decks33 decks
-1%synergy
Demonic Counsel
12%inclusion4 decks33 decks
11%synergy
Entreat the Angels
12%inclusion4 decks33 decks
10%synergy
Feed the Swarm
9.1%inclusion3 decks33 decks
6%synergy
Buried Alive
9.1%inclusion3 decks33 decks
5%synergy
Insatiable Avarice
9.1%inclusion3 decks33 decks
8%synergy
Aminatou's Augury
9.1%inclusion3 decks33 decks
8%synergy
Dance of the Manse
9.1%inclusion3 decks33 decks
6%synergy
Final Parting
9.1%inclusion3 decks33 decks
9%synergy
Damn
9.1%inclusion3 decks33 decks
-11%synergy
Supreme Verdict
6.1%inclusion2 decks33 decks
-9%synergy
Resurgent Belief
6.1%inclusion2 decks33 decks
4%synergy
Open the Vaults
6.1%inclusion2 decks33 decks
5%synergy
Split Up
6.1%inclusion2 decks33 decks
5%synergy
Ringsight
6.1%inclusion2 decks33 decks
5%synergy
Unearth
6.1%inclusion2 decks33 decks
4%synergy
Glimpse the Unthinkable
6.1%inclusion2 decks33 decks
6%synergy
Zombify
6.1%inclusion2 decks33 decks
6%synergy
Traumatize
6.1%inclusion2 decks33 decks
6%synergy
Living Death
6.1%inclusion2 decks33 decks
1%synergy
Reanimate
6.1%inclusion2 decks33 decks
-10%synergy
Final Vengeance
6.1%inclusion2 decks33 decks
6%synergy
Utility Artifacts
Keys to the House
18%inclusion6 decks33 decks
18%synergy
Wishclaw Talisman
15%inclusion5 decks33 decks
8%synergy
Cloud Key
9.1%inclusion3 decks33 decks
6%synergy
Swiftfoot Boots
9.1%inclusion3 decks33 decks
-15%synergy
Soul-Guide Lantern
6.1%inclusion2 decks33 decks
5%synergy
The Everflowing Well
6.1%inclusion2 decks33 decks
6%synergy
Wayfarer's Bauble
6.1%inclusion2 decks33 decks
-1%synergy
Brainstone
6.1%inclusion2 decks33 decks
5%synergy
Planetarium of Wan Shi Tong
5.6%inclusion1 decks18 decks
5%synergy
Enchantments
Monologue Tax
45%inclusion15 decks33 decks
39%synergy
Ripples of Undeath
42%inclusion14 decks33 decks
40%synergy
Extravagant Replication
42%inclusion14 decks33 decks
37%synergy
Timely Ward
42%inclusion14 decks33 decks
38%synergy
Dress Down
42%inclusion14 decks33 decks
40%synergy
Shark Typhoon
39%inclusion13 decks33 decks
34%synergy
Animate Dead
39%inclusion13 decks33 decks
30%synergy
Seal of Cleansing
33%inclusion11 decks33 decks
32%synergy
Cramped Vents // Access Maze
30%inclusion10 decks33 decks
28%synergy
The Eldest Reborn
30%inclusion10 decks33 decks
28%synergy
Amphibian Downpour
27%inclusion9 decks33 decks
23%synergy
Restricted Office // Lecture Hall
27%inclusion9 decks33 decks
25%synergy
Mirror Room // Fractured Realm
27%inclusion9 decks33 decks
25%synergy
Cast Out
27%inclusion9 decks33 decks
24%synergy
One with the Multiverse
24%inclusion8 decks33 decks
20%synergy
Estrid's Invocation
24%inclusion8 decks33 decks
20%synergy
Ethereal Armor
24%inclusion8 decks33 decks
20%synergy
Defiled Crypt // Cadaver Lab
24%inclusion8 decks33 decks
24%synergy
Central Elevator // Promising Stairs
24%inclusion8 decks33 decks
24%synergy
Cacophony Unleashed
21%inclusion7 decks33 decks
20%synergy
Meat Locker // Drowned Diner
21%inclusion7 decks33 decks
21%synergy
Witness Protection
21%inclusion7 decks33 decks
19%synergy
Phyrexian Arena
21%inclusion7 decks33 decks
7%synergy
Seal of Removal
21%inclusion7 decks33 decks
21%synergy
Cemetery Tampering
21%inclusion7 decks33 decks
20%synergy
Nowhere to Run
21%inclusion7 decks33 decks
20%synergy
Founding the Third Path
18%inclusion6 decks33 decks
18%synergy
Grasp of Fate
18%inclusion6 decks33 decks
12%synergy
Unable to Scream
18%inclusion6 decks33 decks
17%synergy
Blind Obedience
18%inclusion6 decks33 decks
6%synergy
Necromancy
18%inclusion6 decks33 decks
14%synergy
Touch the Spirit Realm
18%inclusion6 decks33 decks
16%synergy
Secrets of the Dead
18%inclusion6 decks33 decks
18%synergy
Ghostly Prison
18%inclusion6 decks33 decks
-5%synergy
All That Glitters
18%inclusion6 decks33 decks
10%synergy
Polluted Cistern // Dim Oubliette
18%inclusion6 decks33 decks
18%synergy
Darksteel Mutation
15%inclusion5 decks33 decks
9%synergy
Tinybones Joins Up
15%inclusion5 decks33 decks
14%synergy
Surgical Suite // Hospital Room
15%inclusion5 decks33 decks
15%synergy
Mystic Remora
15%inclusion5 decks33 decks
-5%synergy
Propaganda
15%inclusion5 decks33 decks
-14%synergy
Copy Enchantment
15%inclusion5 decks33 decks
10%synergy
Static Prison
15%inclusion5 decks33 decks
15%synergy
Sheltered by Ghosts
15%inclusion5 decks33 decks
12%synergy
Stillness in Motion
14%inclusion4 decks29 decks
13%synergy
Trapped in the Screen
12%inclusion4 decks33 decks
12%synergy
Underwater Tunnel // Slimy Aquarium
12%inclusion4 decks33 decks
12%synergy
Derelict Attic // Widow's Walk
12%inclusion4 decks33 decks
12%synergy
Funeral Room // Awakening Hall
12%inclusion4 decks33 decks
11%synergy
Screams from Within
12%inclusion4 decks33 decks
12%synergy
Utility Lands
Hall of Heliod's Generosity
55%inclusion18 decks33 decks
42%synergy
Bojuka Bog
45%inclusion15 decks33 decks
19%synergy
Halimar Depths
33%inclusion11 decks33 decks
29%synergy
Cephalid Coliseum
15%inclusion5 decks33 decks
12%synergy
Rogue's Passage
12%inclusion4 decks33 decks
2%synergy
Nephalia Drownyard
6.1%inclusion2 decks33 decks
6%synergy
Mana Artifacts
Sol Ring
88%inclusion29 decks33 decks
-2%synergy
Arcane Signet
85%inclusion28 decks33 decks
-3%synergy
Orzhov Signet
64%inclusion21 decks33 decks
32%synergy
Azorius Signet
64%inclusion21 decks33 decks
34%synergy
Mind Stone
36%inclusion12 decks33 decks
25%synergy
Talisman of Progress
30%inclusion10 decks33 decks
-14%synergy
Commander's Sphere
30%inclusion10 decks33 decks
13%synergy
Talisman of Dominance
27%inclusion9 decks33 decks
-23%synergy
Talisman of Hierarchy
27%inclusion9 decks33 decks
-17%synergy
Dimir Signet
21%inclusion7 decks33 decks
-9%synergy
Fellwar Stone
21%inclusion7 decks33 decks
-12%synergy
Lands
Swamp
100%inclusion33 decks33 decks
8%synergy
Plains
100%inclusion33 decks33 decks
8%synergy
Island
97%inclusion32 decks33 decks
4%synergy
Command Tower
88%inclusion29 decks33 decks
-5%synergy
Caves of Koilos
79%inclusion26 decks33 decks
43%synergy
Underground River
76%inclusion25 decks33 decks
41%synergy
Adarkar Wastes
73%inclusion24 decks33 decks
40%synergy
Arcane Sanctum
70%inclusion23 decks33 decks
16%synergy
Temple of Silence
61%inclusion20 decks33 decks
42%synergy
Orzhov Basilica
58%inclusion19 decks33 decks
43%synergy
Tainted Isle
55%inclusion18 decks33 decks
48%synergy
Azorius Chancery
55%inclusion18 decks33 decks
41%synergy
Terramorphic Expanse
55%inclusion18 decks33 decks
39%synergy
Temple of Deceit
55%inclusion18 decks33 decks
38%synergy
Tainted Field
55%inclusion18 decks33 decks
48%synergy
Temple of Enlightenment
55%inclusion18 decks33 decks
39%synergy
Obscura Storefront
55%inclusion18 decks33 decks
45%synergy
Dimir Aqueduct
52%inclusion17 decks33 decks
39%synergy
Evolving Wilds
52%inclusion17 decks33 decks
27%synergy
Ash Barrens
42%inclusion14 decks33 decks
32%synergy
Glacial Fortress
33%inclusion11 decks33 decks
-10%synergy
Exotic Orchard
33%inclusion11 decks33 decks
-26%synergy
Thriving Heath
33%inclusion11 decks33 decks
29%synergy
Thriving Moor
30%inclusion10 decks33 decks
26%synergy
Isolated Chapel
30%inclusion10 decks33 decks
-12%synergy
Thriving Isle
27%inclusion9 decks33 decks
23%synergy
Prairie Stream
24%inclusion8 decks33 decks
-16%synergy
Sunken Hollow
24%inclusion8 decks33 decks
-16%synergy
Contaminated Landscape
18%inclusion6 decks33 decks
5%synergy
River of Tears
18%inclusion6 decks33 decks
16%synergy
Drowned Catacomb
15%inclusion5 decks33 decks
-23%synergy
Skycloud Expanse
15%inclusion5 decks33 decks
0%synergy
Darkwater Catacombs
12%inclusion4 decks33 decks
-3%synergy
Dismal Backwater
12%inclusion4 decks33 decks
6%synergy
Abandoned Campground
9.1%inclusion3 decks33 decks
8%synergy
Spire of Industry
9.1%inclusion3 decks33 decks
1%synergy
Valgavoth's Lair
9.1%inclusion3 decks33 decks
7%synergy
Raffine's Tower
9.1%inclusion3 decks33 decks
-32%synergy
Hydroelectric Specimen
9.1%inclusion3 decks33 decks
6%synergy
Choked Estuary
9.1%inclusion3 decks33 decks
-7%synergy
Myriad Landscape
6.1%inclusion2 decks33 decks
-1%synergy
Tranquil Cove
6.1%inclusion2 decks33 decks
0%synergy
Fetid Heath
6.1%inclusion2 decks33 decks
-7%synergy
Dimir Guildgate
6.1%inclusion2 decks33 decks
4%synergy
Promising Vein
6.1%inclusion2 decks33 decks
6%synergy
Seachrome Coast
6.1%inclusion2 decks33 decks
2%synergy
Path of Ancestry
6.1%inclusion2 decks33 decks
-22%synergy
Shineshadow Snarl
6.1%inclusion2 decks33 decks
-5%synergy
Scoured Barrens
6.1%inclusion2 decks33 decks
-0%synergy
Hallowed Fountain
6.1%inclusion2 decks33 decks
-45%synergy
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