The Master of Keys (Commander) - Budget

The Master of Keys
Rank #302
804decks
As CommanderAs CardAverage DeckDecksView Precon
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Budget
Any$$$$
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
Battles
Utility Lands
Mana Artifacts
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Eiganjo Dynastorian
6.3%inclusion8 decks127 decks
5%synergy
Primary Research
6.3%inclusion8 decks127 decks
6%synergy
Forum of Amity
5.5%inclusion7 decks127 decks
5%synergy
Changing Loyalty
4.7%inclusion6 decks127 decks
4%synergy
Coercive Impetus
4.7%inclusion6 decks127 decks
4%synergy
High Synergy Cards
Inquisitive Glimmer
69%inclusion558 decks804 decks
62%synergy
Mesa Enchantress
67%inclusion541 decks804 decks
59%synergy
Starfield Mystic
64%inclusion513 decks804 decks
57%synergy
Demon of Fate's Design
60%inclusion486 decks804 decks
55%synergy
Doomwake Giant
59%inclusion472 decks804 decks
53%synergy
Fear of Sleep Paralysis
56%inclusion448 decks804 decks
51%synergy
Scrabbling Skullcrab
50%inclusion404 decks804 decks
49%synergy
Gravebreaker Lamia
49%inclusion397 decks804 decks
48%synergy
Sigil of the Empty Throne
53%inclusion429 decks804 decks
48%synergy
Entity Tracker
52%inclusion421 decks804 decks
46%synergy
Top Cards
Victor, Valgavoth's Seneschal
48%inclusion383 decks804 decks
46%synergy
Secret Arcade // Dusty Parlor
48%inclusion383 decks804 decks
43%synergy
Redress Fate
45%inclusion363 decks804 decks
40%synergy
Mirrormade
45%inclusion362 decks804 decks
35%synergy
Swords to Plowshares
44%inclusion357 decks804 decks
-23%synergy
Sphere of Safety
43%inclusion344 decks804 decks
33%synergy
Fear of Impostors
43%inclusion343 decks804 decks
41%synergy
Defiled Crypt // Cadaver Lab
42%inclusion335 decks804 decks
41%synergy
Cemetery Tampering
40%inclusion325 decks804 decks
40%synergy
Bottomless Pool // Locker Room
40%inclusion323 decks804 decks
38%synergy
Creatures
Soaring Lightbringer
40%inclusion320 decks804 decks
35%synergy
Ghostly Dancers
39%inclusion315 decks804 decks
37%synergy
Moon-Blessed Cleric
39%inclusion310 decks804 decks
34%synergy
Ondu Spiritdancer
37%inclusion294 decks804 decks
30%synergy
Aminatou, Veil Piercer
35%inclusion280 decks804 decks
33%synergy
Athreos, Shroud-Veiled
28%inclusion226 decks804 decks
24%synergy
Archetype of Imagination
28%inclusion225 decks804 decks
23%synergy
Skullsnap Nuisance
27%inclusion216 decks804 decks
26%synergy
Grim Guardian
26%inclusion212 decks804 decks
24%synergy
Silent Hallcreeper
26%inclusion208 decks804 decks
21%synergy
Archon of Sun's Grace
25%inclusion199 decks804 decks
20%synergy
Zur the Enchanter
24%inclusion194 decks804 decks
19%synergy
Fear of Infinity
24%inclusion189 decks804 decks
23%synergy
Overlord of the Floodpits
23%inclusion184 decks804 decks
19%synergy
Sage of Mysteries
22%inclusion177 decks804 decks
22%synergy
Balemurk Leech
22%inclusion175 decks804 decks
21%synergy
Mindwrack Harpy
20%inclusion164 decks804 decks
20%synergy
Ancient Cellarspawn
20%inclusion159 decks804 decks
17%synergy
Gremlin Tamer
20%inclusion158 decks804 decks
19%synergy
Heliod, the Radiant Dawn
19%inclusion154 decks804 decks
16%synergy
Nightmare Shepherd
19%inclusion151 decks804 decks
16%synergy
Alseid of Life's Bounty
18%inclusion143 decks804 decks
16%synergy
Fear of Surveillance
17%inclusion134 decks804 decks
16%synergy
Solemn Simulacrum
16%inclusion131 decks804 decks
3%synergy
Spirited Companion
16%inclusion129 decks804 decks
14%synergy
Zur, Eternal Schemer
16%inclusion128 decks804 decks
13%synergy
Auramancer
16%inclusion126 decks804 decks
13%synergy
Enduring Curiosity
13%inclusion105 decks804 decks
5%synergy
Starnheim Courser
13%inclusion102 decks804 decks
9%synergy
Nashi, Searcher in the Dark
13%inclusion102 decks804 decks
12%synergy
Appendage Amalgam
12%inclusion93 decks804 decks
11%synergy
Fear of the Dark
11%inclusion90 decks804 decks
11%synergy
Millikin
11%inclusion90 decks804 decks
11%synergy
Arvinox, the Mind Flail
11%inclusion87 decks804 decks
9%synergy
Creeping Peeper
10%inclusion83 decks804 decks
10%synergy
Metamorphosis Fanatic
10%inclusion82 decks804 decks
6%synergy
Optimistic Scavenger
9.5%inclusion76 decks804 decks
9%synergy
Ghostly Keybearer
9.0%inclusion72 decks804 decks
9%synergy
Fear of Lost Teeth
8.7%inclusion70 decks804 decks
9%synergy
Burnished Hart
8.7%inclusion70 decks804 decks
6%synergy
Fear of Failed Tests
8.5%inclusion68 decks804 decks
8%synergy
Phenomenon Investigators
8.3%inclusion67 decks804 decks
8%synergy
Fear of Isolation
8.0%inclusion64 decks804 decks
8%synergy
Stitcher's Supplier
7.7%inclusion62 decks804 decks
7%synergy
Fear of Immobility
7.7%inclusion62 decks804 decks
8%synergy
Overlord of the Mistmoors
7.3%inclusion59 decks804 decks
5%synergy
Dream Eater
6.8%inclusion55 decks804 decks
6%synergy
Verge Rangers
6.3%inclusion51 decks804 decks
5%synergy
Fear of Falling
6.2%inclusion50 decks804 decks
6%synergy
Deranged Assistant
6.2%inclusion50 decks804 decks
6%synergy
Instants
Thirst for Meaning
38%inclusion305 decks804 decks
36%synergy
Otherworldly Gaze
29%inclusion236 decks804 decks
27%synergy
Arcane Denial
27%inclusion215 decks804 decks
7%synergy
Path to Exile
24%inclusion193 decks804 decks
-18%synergy
Counterspell
24%inclusion192 decks804 decks
-18%synergy
Negate
21%inclusion172 decks804 decks
5%synergy
Void Rend
19%inclusion155 decks804 decks
-15%synergy
Frantic Search
18%inclusion145 decks804 decks
0%synergy
Utter End
17%inclusion140 decks804 decks
11%synergy
Inkshield
17%inclusion135 decks804 decks
7%synergy
Brainstorm
15%inclusion118 decks804 decks
-2%synergy
Return to Dust
11%inclusion90 decks804 decks
8%synergy
Fact or Fiction
10%inclusion80 decks804 decks
6%synergy
Telling Time
8.5%inclusion68 decks804 decks
6%synergy
Don't Make a Sound
7.7%inclusion62 decks803 decks
7%synergy
An Offer You Can't Refuse
7.7%inclusion62 decks804 decks
-20%synergy
Get Out
7.3%inclusion59 decks804 decks
7%synergy
Dovin's Veto
6.7%inclusion54 decks804 decks
-19%synergy
Dark Ritual
6.2%inclusion50 decks804 decks
-14%synergy
Glimmerburst
6.1%inclusion49 decks803 decks
6%synergy
Generous Gift
5.7%inclusion46 decks804 decks
-8%synergy
Murder
5.2%inclusion42 decks804 decks
4%synergy
Sorceries
Sevinne's Reclamation
29%inclusion236 decks804 decks
20%synergy
Time Wipe
29%inclusion236 decks804 decks
23%synergy
Extinguish All Hope
26%inclusion207 decks804 decks
24%synergy
Dance of the Manse
23%inclusion183 decks804 decks
20%synergy
Singularity Rupture
19%inclusion83 decks442 decks
17%synergy
Ponder
13%inclusion104 decks804 decks
4%synergy
Read the Bones
12%inclusion97 decks804 decks
8%synergy
Terminus
12%inclusion95 decks804 decks
8%synergy
Resurgent Belief
11%inclusion90 decks804 decks
9%synergy
Diabolic Vision
9.3%inclusion75 decks804 decks
7%synergy
Portent
8.8%inclusion71 decks804 decks
5%synergy
Aminatou's Augury
7.8%inclusion63 decks804 decks
7%synergy
Space-Time Anomaly
7.4%inclusion32 decks432 decks
6%synergy
Final Vengeance
7.1%inclusion57 decks804 decks
7%synergy
Open the Vaults
6.6%inclusion53 decks804 decks
5%synergy
Austere Command
6.3%inclusion51 decks804 decks
-2%synergy
Windfall
6.3%inclusion51 decks804 decks
-7%synergy
Demonic Counsel
6.0%inclusion48 decks804 decks
5%synergy
Glimpse the Unthinkable
5.7%inclusion46 decks804 decks
5%synergy
Entreat the Angels
5.5%inclusion44 decks804 decks
4%synergy
Buried Alive
5.3%inclusion43 decks804 decks
1%synergy
Supreme Verdict
5.1%inclusion41 decks804 decks
-10%synergy
Utility Artifacts
Keys to the House
16%inclusion131 decks804 decks
16%synergy
Cloud Key
11%inclusion88 decks804 decks
8%synergy
Wayfarer's Bauble
10%inclusion82 decks804 decks
3%synergy
Swiftfoot Boots
9.0%inclusion72 decks804 decks
-15%synergy
Perpetual Timepiece
5.8%inclusion47 decks804 decks
5%synergy
Enchantments
Seal of Cleansing
39%inclusion313 decks804 decks
37%synergy
Ethereal Armor
35%inclusion283 decks804 decks
31%synergy
Cramped Vents // Access Maze
33%inclusion263 decks804 decks
30%synergy
Extravagant Replication
33%inclusion263 decks804 decks
28%synergy
Dress Down
31%inclusion248 decks804 decks
29%synergy
Shark Typhoon
31%inclusion247 decks804 decks
25%synergy
All That Glitters
31%inclusion246 decks804 decks
22%synergy
Timely Ward
30%inclusion245 decks804 decks
26%synergy
Grasp of Fate
30%inclusion242 decks804 decks
24%synergy
Restricted Office // Lecture Hall
30%inclusion241 decks804 decks
28%synergy
The Eldest Reborn
29%inclusion232 decks804 decks
26%synergy
Monologue Tax
28%inclusion226 decks804 decks
22%synergy
Propaganda
27%inclusion216 decks804 decks
-2%synergy
Central Elevator // Promising Stairs
26%inclusion208 decks804 decks
25%synergy
Cacophony Unleashed
25%inclusion201 decks804 decks
23%synergy
Ripples of Undeath
25%inclusion197 decks804 decks
22%synergy
Derelict Attic // Widow's Walk
23%inclusion184 decks803 decks
23%synergy
Estrid's Invocation
23%inclusion183 decks804 decks
18%synergy
The Tale of Tamiyo
23%inclusion182 decks804 decks
22%synergy
Meat Locker // Drowned Diner
22%inclusion174 decks803 decks
21%synergy
Stillness in Motion
22%inclusion124 decks573 decks
21%synergy
Imprisoned in the Moon
21%inclusion171 decks804 decks
15%synergy
One with the Multiverse
21%inclusion170 decks804 decks
17%synergy
Dazzling Theater // Prop Room
21%inclusion166 decks804 decks
19%synergy
Polluted Cistern // Dim Oubliette
21%inclusion166 decks804 decks
20%synergy
Seal of Removal
20%inclusion164 decks804 decks
20%synergy
Underwater Tunnel // Slimy Aquarium
18%inclusion148 decks804 decks
18%synergy
Cast Out
18%inclusion148 decks804 decks
16%synergy
Secrets of the Dead
18%inclusion146 decks804 decks
18%synergy
Surgical Suite // Hospital Room
18%inclusion142 decks804 decks
17%synergy
Mirror Room // Fractured Realm
18%inclusion142 decks804 decks
16%synergy
Amphibian Downpour
17%inclusion136 decks804 decks
12%synergy
Unable to Scream
17%inclusion133 decks804 decks
16%synergy
Darksteel Mutation
16%inclusion126 decks804 decks
10%synergy
Copy Enchantment
15%inclusion119 decks804 decks
10%synergy
Animate Dead
14%inclusion115 decks804 decks
5%synergy
Ghostly Prison
14%inclusion114 decks804 decks
-9%synergy
Spirit-Sister's Call
13%inclusion107 decks804 decks
12%synergy
Phyrexian Arena
13%inclusion106 decks804 decks
-1%synergy
Seal of Doom
13%inclusion103 decks804 decks
13%synergy
Nowhere to Run
13%inclusion102 decks804 decks
12%synergy
Funeral Room // Awakening Hall
12%inclusion99 decks804 decks
11%synergy
Unholy Annex // Ritual Chamber
12%inclusion99 decks804 decks
12%synergy
Sheltered by Ghosts
12%inclusion99 decks804 decks
10%synergy
Trapped in the Screen
12%inclusion95 decks804 decks
11%synergy
Life Insurance
10%inclusion83 decks804 decks
9%synergy
Grand Entryway // Elegant Rotunda
10%inclusion82 decks804 decks
10%synergy
Soul Snare
10%inclusion79 decks804 decks
9%synergy
Witness Protection
9.2%inclusion74 decks804 decks
7%synergy
Glasswing Grace
7.7%inclusion62 decks804 decks
5%synergy
Battles
Invasion of Theros
10%inclusion81 decks804 decks
8%synergy
Utility Lands
Bojuka Bog
39%inclusion310 decks804 decks
12%synergy
Hall of Heliod's Generosity
35%inclusion280 decks804 decks
22%synergy
Halimar Depths
21%inclusion165 decks804 decks
16%synergy
Reliquary Tower
8.3%inclusion67 decks804 decks
-26%synergy
Cephalid Coliseum
7.5%inclusion60 decks804 decks
4%synergy
Rogue's Passage
5.8%inclusion47 decks804 decks
-4%synergy
Mana Artifacts
Arcane Signet
81%inclusion648 decks804 decks
-7%synergy
Sol Ring
78%inclusion625 decks804 decks
-12%synergy
Azorius Signet
57%inclusion455 decks804 decks
27%synergy
Orzhov Signet
54%inclusion437 decks804 decks
23%synergy
Dimir Signet
36%inclusion290 decks804 decks
6%synergy
Commander's Sphere
34%inclusion273 decks804 decks
16%synergy
Mind Stone
34%inclusion270 decks804 decks
22%synergy
Talisman of Progress
28%inclusion227 decks804 decks
-16%synergy
Talisman of Dominance
28%inclusion227 decks804 decks
-22%synergy
Talisman of Hierarchy
24%inclusion192 decks804 decks
-21%synergy
Fellwar Stone
19%inclusion152 decks804 decks
-14%synergy
Lands
Island
99%inclusion797 decks804 decks
6%synergy
Swamp
99%inclusion793 decks804 decks
7%synergy
Plains
98%inclusion790 decks804 decks
6%synergy
Command Tower
87%inclusion701 decks804 decks
-5%synergy
Arcane Sanctum
74%inclusion597 decks804 decks
20%synergy
Evolving Wilds
53%inclusion425 decks804 decks
28%synergy
Caves of Koilos
52%inclusion418 decks804 decks
16%synergy
Terramorphic Expanse
51%inclusion408 decks804 decks
35%synergy
Temple of Enlightenment
51%inclusion408 decks804 decks
35%synergy
Adarkar Wastes
49%inclusion394 decks804 decks
17%synergy
Temple of Silence
49%inclusion393 decks804 decks
31%synergy
Temple of Deceit
47%inclusion377 decks804 decks
30%synergy
Exotic Orchard
44%inclusion355 decks804 decks
-15%synergy
Obscura Storefront
43%inclusion343 decks804 decks
33%synergy
Prairie Stream
41%inclusion327 decks804 decks
0%synergy
Underground River
40%inclusion323 decks804 decks
5%synergy
Dimir Aqueduct
40%inclusion322 decks804 decks
27%synergy
Azorius Chancery
40%inclusion319 decks804 decks
26%synergy
Orzhov Basilica
38%inclusion307 decks804 decks
23%synergy
Tainted Field
36%inclusion286 decks804 decks
29%synergy
Sunken Hollow
35%inclusion284 decks804 decks
-4%synergy
Tainted Isle
35%inclusion282 decks804 decks
29%synergy
Glacial Fortress
33%inclusion267 decks804 decks
-10%synergy
Isolated Chapel
31%inclusion247 decks804 decks
-11%synergy
Contaminated Landscape
29%inclusion233 decks804 decks
15%synergy
Ash Barrens
28%inclusion225 decks804 decks
17%synergy
Valgavoth's Lair
21%inclusion166 decks804 decks
18%synergy
Thriving Isle
20%inclusion161 decks804 decks
16%synergy
Thriving Heath
20%inclusion158 decks804 decks
16%synergy
Thriving Moor
19%inclusion155 decks804 decks
15%synergy
Drowned Catacomb
18%inclusion145 decks804 decks
-20%synergy
Darkwater Catacombs
17%inclusion133 decks804 decks
2%synergy
Skycloud Expanse
17%inclusion133 decks804 decks
1%synergy
Choked Estuary
16%inclusion131 decks804 decks
0%synergy
Port Town
16%inclusion129 decks804 decks
-1%synergy
Path of Ancestry
15%inclusion119 decks804 decks
-13%synergy
Shineshadow Snarl
13%inclusion104 decks804 decks
2%synergy
Myriad Landscape
12%inclusion95 decks804 decks
4%synergy
Abandoned Campground
8.1%inclusion65 decks804 decks
7%synergy
Irrigated Farmland
8.0%inclusion64 decks804 decks
1%synergy
Glasswing Grace
7.7%inclusion62 decks804 decks
5%synergy
Fetid Heath
7.7%inclusion62 decks804 decks
-6%synergy
Desolate Mire
7.6%inclusion61 decks804 decks
1%synergy
Tranquil Cove
7.5%inclusion60 decks804 decks
1%synergy
Scoured Barrens
7.0%inclusion56 decks804 decks
1%synergy
Fetid Pools
6.6%inclusion53 decks804 decks
0%synergy
Neglected Manor
6.6%inclusion53 decks804 decks
6%synergy
Dismal Backwater
6.3%inclusion51 decks804 decks
0%synergy
Murky Sewer
6.1%inclusion49 decks804 decks
6%synergy
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