The Master of Keys (Commander) - Budget

The Master of Keys
Rank #300
768decks
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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Primary Research
5.4%inclusion4 decks74 decks
5%synergy
Eiganjo Dynastorian
5.4%inclusion4 decks74 decks
4%synergy
Coercive Impetus
4.1%inclusion3 decks74 decks
4%synergy
Forum of Amity
2.7%inclusion2 decks74 decks
2%synergy
Dimensional Exile
2.1%inclusion3 decks141 decks
2%synergy
High Synergy Cards
Inquisitive Glimmer
71%inclusion547 decks768 decks
64%synergy
Mesa Enchantress
67%inclusion518 decks768 decks
59%synergy
Starfield Mystic
64%inclusion493 decks768 decks
58%synergy
Demon of Fate's Design
60%inclusion463 decks768 decks
55%synergy
Doomwake Giant
58%inclusion446 decks768 decks
52%synergy
Fear of Sleep Paralysis
56%inclusion428 decks768 decks
51%synergy
Scrabbling Skullcrab
51%inclusion389 decks768 decks
50%synergy
Gravebreaker Lamia
50%inclusion383 decks768 decks
49%synergy
Sigil of the Empty Throne
53%inclusion410 decks768 decks
48%synergy
Victor, Valgavoth's Seneschal
49%inclusion380 decks768 decks
48%synergy
Top Cards
Entity Tracker
52%inclusion399 decks768 decks
46%synergy
Secret Arcade // Dusty Parlor
48%inclusion372 decks768 decks
44%synergy
Redress Fate
45%inclusion345 decks768 decks
39%synergy
Mirrormade
44%inclusion340 decks768 decks
35%synergy
Swords to Plowshares
44%inclusion335 decks768 decks
-24%synergy
Sphere of Safety
43%inclusion331 decks768 decks
34%synergy
Fear of Impostors
43%inclusion329 decks768 decks
41%synergy
Defiled Crypt // Cadaver Lab
43%inclusion328 decks768 decks
42%synergy
Bottomless Pool // Locker Room
41%inclusion316 decks768 decks
39%synergy
Cemetery Tampering
40%inclusion309 decks768 decks
39%synergy
Creatures
Soaring Lightbringer
40%inclusion309 decks768 decks
36%synergy
Ghostly Dancers
40%inclusion307 decks768 decks
38%synergy
Moon-Blessed Cleric
38%inclusion295 decks768 decks
34%synergy
Ondu Spiritdancer
38%inclusion290 decks768 decks
32%synergy
Aminatou, Veil Piercer
35%inclusion272 decks768 decks
34%synergy
Skullsnap Nuisance
28%inclusion216 decks768 decks
28%synergy
Archetype of Imagination
27%inclusion210 decks768 decks
23%synergy
Athreos, Shroud-Veiled
27%inclusion207 decks768 decks
23%synergy
Silent Hallcreeper
26%inclusion199 decks768 decks
21%synergy
Grim Guardian
26%inclusion199 decks768 decks
23%synergy
Fear of Infinity
25%inclusion192 decks768 decks
24%synergy
Zur the Enchanter
25%inclusion190 decks768 decks
20%synergy
Archon of Sun's Grace
25%inclusion189 decks768 decks
20%synergy
Overlord of the Floodpits
23%inclusion174 decks768 decks
19%synergy
Sage of Mysteries
23%inclusion174 decks768 decks
22%synergy
Balemurk Leech
22%inclusion169 decks768 decks
21%synergy
Gremlin Tamer
21%inclusion160 decks768 decks
20%synergy
Mindwrack Harpy
21%inclusion158 decks768 decks
20%synergy
Heliod, the Radiant Dawn
20%inclusion154 decks768 decks
16%synergy
Ancient Cellarspawn
19%inclusion147 decks768 decks
16%synergy
Fear of Surveillance
18%inclusion138 decks768 decks
18%synergy
Nightmare Shepherd
18%inclusion137 decks768 decks
15%synergy
Alseid of Life's Bounty
18%inclusion136 decks768 decks
16%synergy
Zur, Eternal Schemer
16%inclusion126 decks768 decks
13%synergy
Spirited Companion
16%inclusion122 decks768 decks
14%synergy
Auramancer
16%inclusion122 decks768 decks
13%synergy
Solemn Simulacrum
15%inclusion116 decks768 decks
1%synergy
Enduring Curiosity
14%inclusion110 decks768 decks
6%synergy
Nashi, Searcher in the Dark
14%inclusion104 decks768 decks
13%synergy
Starnheim Courser
13%inclusion102 decks768 decks
10%synergy
Creeping Peeper
12%inclusion93 decks768 decks
12%synergy
Appendage Amalgam
12%inclusion93 decks768 decks
12%synergy
Fear of the Dark
12%inclusion90 decks768 decks
11%synergy
Arvinox, the Mind Flail
11%inclusion85 decks768 decks
9%synergy
Millikin
10%inclusion80 decks768 decks
10%synergy
Metamorphosis Fanatic
10%inclusion78 decks768 decks
6%synergy
Optimistic Scavenger
10%inclusion77 decks768 decks
10%synergy
Ghostly Keybearer
10%inclusion75 decks768 decks
10%synergy
Fear of Lost Teeth
9.2%inclusion71 decks768 decks
9%synergy
Fear of Failed Tests
9.1%inclusion70 decks768 decks
9%synergy
Burnished Hart
8.7%inclusion67 decks768 decks
6%synergy
Fear of Isolation
8.6%inclusion66 decks768 decks
8%synergy
Fear of Immobility
8.2%inclusion63 decks768 decks
8%synergy
Overlord of the Mistmoors
7.9%inclusion61 decks768 decks
6%synergy
Phenomenon Investigators
7.9%inclusion61 decks768 decks
7%synergy
Stitcher's Supplier
7.6%inclusion58 decks768 decks
7%synergy
Verge Rangers
6.8%inclusion52 decks768 decks
6%synergy
Fear of Falling
6.6%inclusion51 decks768 decks
7%synergy
Dream Eater
6.6%inclusion51 decks768 decks
6%synergy
Clammy Prowler
6.4%inclusion49 decks768 decks
6%synergy
Instants
Thirst for Meaning
39%inclusion296 decks768 decks
37%synergy
Otherworldly Gaze
29%inclusion223 decks768 decks
27%synergy
Arcane Denial
26%inclusion197 decks768 decks
5%synergy
Path to Exile
24%inclusion181 decks768 decks
-19%synergy
Counterspell
23%inclusion177 decks768 decks
-19%synergy
Negate
21%inclusion161 decks768 decks
5%synergy
Void Rend
19%inclusion149 decks768 decks
-15%synergy
Frantic Search
18%inclusion135 decks768 decks
-1%synergy
Utter End
17%inclusion128 decks768 decks
10%synergy
Inkshield
15%inclusion114 decks768 decks
5%synergy
Brainstorm
14%inclusion111 decks768 decks
-2%synergy
Return to Dust
10%inclusion80 decks768 decks
7%synergy
Fact or Fiction
10%inclusion74 decks768 decks
6%synergy
Telling Time
8.3%inclusion64 decks768 decks
6%synergy
Don't Make a Sound
8.1%inclusion62 decks767 decks
8%synergy
Get Out
8.1%inclusion62 decks768 decks
8%synergy
Dovin's Veto
7.0%inclusion54 decks768 decks
-19%synergy
An Offer You Can't Refuse
7.0%inclusion54 decks768 decks
-20%synergy
Glimmerburst
6.4%inclusion49 decks767 decks
6%synergy
Generous Gift
6.1%inclusion47 decks768 decks
-8%synergy
Dark Ritual
6.0%inclusion46 decks768 decks
-14%synergy
Murder
5.6%inclusion43 decks768 decks
4%synergy
Sorceries
Sevinne's Reclamation
29%inclusion222 decks768 decks
20%synergy
Time Wipe
29%inclusion220 decks768 decks
22%synergy
Extinguish All Hope
27%inclusion206 decks768 decks
25%synergy
Dance of the Manse
23%inclusion179 decks768 decks
20%synergy
Singularity Rupture
19%inclusion77 decks398 decks
17%synergy
Ponder
12%inclusion95 decks768 decks
3%synergy
Terminus
12%inclusion92 decks768 decks
8%synergy
Resurgent Belief
12%inclusion91 decks768 decks
10%synergy
Read the Bones
11%inclusion83 decks768 decks
7%synergy
Diabolic Vision
8.3%inclusion64 decks768 decks
6%synergy
Space-Time Anomaly
8.2%inclusion32 decks389 decks
7%synergy
Portent
7.8%inclusion60 decks768 decks
4%synergy
Aminatou's Augury
7.4%inclusion57 decks768 decks
6%synergy
Final Vengeance
7.2%inclusion55 decks768 decks
7%synergy
Open the Vaults
6.8%inclusion52 decks768 decks
5%synergy
Austere Command
6.4%inclusion49 decks768 decks
-2%synergy
Windfall
6.0%inclusion46 decks768 decks
-7%synergy
Demonic Counsel
6.0%inclusion46 decks768 decks
5%synergy
Glimpse the Unthinkable
5.6%inclusion43 decks768 decks
5%synergy
Entreat the Angels
5.5%inclusion42 decks768 decks
4%synergy
Damn
5.5%inclusion42 decks768 decks
-15%synergy
Supreme Verdict
5.3%inclusion41 decks768 decks
-9%synergy
Commune with Evil
5.3%inclusion41 decks768 decks
5%synergy
Utility Artifacts
Keys to the House
17%inclusion131 decks768 decks
17%synergy
Cloud Key
10%inclusion80 decks768 decks
7%synergy
Wayfarer's Bauble
10%inclusion73 decks768 decks
2%synergy
Swiftfoot Boots
8.7%inclusion67 decks768 decks
-15%synergy
Perpetual Timepiece
5.6%inclusion43 decks768 decks
5%synergy
Enchantments
Seal of Cleansing
38%inclusion294 decks768 decks
37%synergy
Ethereal Armor
36%inclusion279 decks768 decks
32%synergy
Extravagant Replication
33%inclusion253 decks768 decks
28%synergy
Cramped Vents // Access Maze
32%inclusion249 decks768 decks
30%synergy
All That Glitters
31%inclusion238 decks768 decks
22%synergy
Timely Ward
31%inclusion237 decks768 decks
26%synergy
Restricted Office // Lecture Hall
31%inclusion237 decks768 decks
29%synergy
Shark Typhoon
30%inclusion231 decks768 decks
24%synergy
Grasp of Fate
30%inclusion230 decks768 decks
24%synergy
Dress Down
29%inclusion225 decks768 decks
27%synergy
The Eldest Reborn
28%inclusion213 decks768 decks
25%synergy
Central Elevator // Promising Stairs
27%inclusion211 decks768 decks
27%synergy
Monologue Tax
27%inclusion211 decks768 decks
21%synergy
Propaganda
27%inclusion211 decks768 decks
-1%synergy
Cacophony Unleashed
25%inclusion191 decks768 decks
23%synergy
Derelict Attic // Widow's Walk
24%inclusion182 decks767 decks
23%synergy
Ripples of Undeath
24%inclusion182 decks768 decks
21%synergy
Meat Locker // Drowned Diner
23%inclusion178 decks767 decks
23%synergy
Estrid's Invocation
23%inclusion173 decks768 decks
18%synergy
Dazzling Theater // Prop Room
22%inclusion171 decks768 decks
21%synergy
The Tale of Tamiyo
22%inclusion168 decks768 decks
21%synergy
Stillness in Motion
22%inclusion116 decks531 decks
21%synergy
Imprisoned in the Moon
21%inclusion165 decks768 decks
15%synergy
Polluted Cistern // Dim Oubliette
21%inclusion164 decks768 decks
21%synergy
One with the Multiverse
21%inclusion161 decks768 decks
16%synergy
Seal of Removal
20%inclusion151 decks768 decks
19%synergy
Underwater Tunnel // Slimy Aquarium
19%inclusion149 decks768 decks
19%synergy
Surgical Suite // Hospital Room
19%inclusion147 decks768 decks
19%synergy
Secrets of the Dead
18%inclusion140 decks768 decks
18%synergy
Mirror Room // Fractured Realm
18%inclusion138 decks768 decks
16%synergy
Cast Out
18%inclusion138 decks768 decks
15%synergy
Unable to Scream
18%inclusion137 decks768 decks
17%synergy
Amphibian Downpour
16%inclusion122 decks768 decks
11%synergy
Copy Enchantment
15%inclusion115 decks768 decks
10%synergy
Darksteel Mutation
14%inclusion110 decks768 decks
8%synergy
Funeral Room // Awakening Hall
14%inclusion106 decks768 decks
13%synergy
Phyrexian Arena
14%inclusion105 decks768 decks
0%synergy
Unholy Annex // Ritual Chamber
14%inclusion104 decks768 decks
13%synergy
Ghostly Prison
13%inclusion103 decks768 decks
-9%synergy
Seal of Doom
13%inclusion101 decks768 decks
13%synergy
Spirit-Sister's Call
13%inclusion101 decks768 decks
12%synergy
Trapped in the Screen
13%inclusion99 decks768 decks
12%synergy
Nowhere to Run
12%inclusion93 decks768 decks
11%synergy
Animate Dead
12%inclusion92 decks768 decks
2%synergy
Sheltered by Ghosts
11%inclusion86 decks768 decks
9%synergy
Grand Entryway // Elegant Rotunda
11%inclusion82 decks768 decks
10%synergy
Life Insurance
10%inclusion80 decks768 decks
9%synergy
Soul Snare
10%inclusion78 decks768 decks
10%synergy
Noggle the Mind
10%inclusion19 decks192 decks
9%synergy
Witness Protection
10%inclusion73 decks768 decks
8%synergy
Battles
Invasion of Theros
10%inclusion75 decks768 decks
8%synergy
Utility Lands
Bojuka Bog
38%inclusion290 decks768 decks
11%synergy
Hall of Heliod's Generosity
35%inclusion268 decks768 decks
22%synergy
Halimar Depths
20%inclusion155 decks768 decks
16%synergy
Reliquary Tower
8.1%inclusion62 decks768 decks
-26%synergy
Cephalid Coliseum
7.3%inclusion56 decks768 decks
4%synergy
Rogue's Passage
6.3%inclusion48 decks768 decks
-4%synergy
Mana Artifacts
Arcane Signet
81%inclusion623 decks768 decks
-7%synergy
Sol Ring
77%inclusion593 decks768 decks
-13%synergy
Azorius Signet
56%inclusion433 decks768 decks
26%synergy
Orzhov Signet
54%inclusion418 decks768 decks
22%synergy
Dimir Signet
36%inclusion280 decks768 decks
6%synergy
Commander's Sphere
33%inclusion253 decks768 decks
15%synergy
Mind Stone
32%inclusion247 decks768 decks
20%synergy
Talisman of Progress
28%inclusion216 decks768 decks
-16%synergy
Talisman of Dominance
28%inclusion214 decks768 decks
-22%synergy
Talisman of Hierarchy
23%inclusion176 decks768 decks
-21%synergy
Fellwar Stone
17%inclusion133 decks768 decks
-16%synergy
Lands
Island
99%inclusion761 decks768 decks
6%synergy
Swamp
98%inclusion756 decks768 decks
7%synergy
Plains
98%inclusion754 decks768 decks
6%synergy
Command Tower
87%inclusion668 decks768 decks
-6%synergy
Arcane Sanctum
74%inclusion570 decks768 decks
20%synergy
Evolving Wilds
52%inclusion396 decks768 decks
27%synergy
Temple of Enlightenment
51%inclusion395 decks768 decks
36%synergy
Caves of Koilos
51%inclusion392 decks768 decks
15%synergy
Terramorphic Expanse
51%inclusion388 decks768 decks
35%synergy
Temple of Silence
49%inclusion378 decks768 decks
31%synergy
Adarkar Wastes
48%inclusion370 decks768 decks
16%synergy
Temple of Deceit
47%inclusion362 decks768 decks
30%synergy
Exotic Orchard
43%inclusion334 decks768 decks
-15%synergy
Obscura Storefront
43%inclusion327 decks768 decks
33%synergy
Prairie Stream
40%inclusion309 decks768 decks
0%synergy
Dimir Aqueduct
40%inclusion307 decks768 decks
27%synergy
Azorius Chancery
39%inclusion302 decks768 decks
26%synergy
Underground River
39%inclusion299 decks768 decks
5%synergy
Orzhov Basilica
38%inclusion291 decks768 decks
23%synergy
Tainted Field
35%inclusion272 decks768 decks
28%synergy
Sunken Hollow
35%inclusion272 decks768 decks
-4%synergy
Tainted Isle
35%inclusion271 decks768 decks
29%synergy
Glacial Fortress
33%inclusion252 decks768 decks
-10%synergy
Isolated Chapel
30%inclusion228 decks768 decks
-11%synergy
Contaminated Landscape
29%inclusion224 decks768 decks
15%synergy
Ash Barrens
28%inclusion212 decks768 decks
17%synergy
Valgavoth's Lair
21%inclusion164 decks768 decks
19%synergy
Thriving Isle
19%inclusion147 decks768 decks
15%synergy
Thriving Heath
19%inclusion146 decks768 decks
15%synergy
Thriving Moor
18%inclusion142 decks768 decks
14%synergy
Drowned Catacomb
18%inclusion136 decks768 decks
-20%synergy
Darkwater Catacombs
17%inclusion129 decks768 decks
2%synergy
Skycloud Expanse
16%inclusion123 decks768 decks
1%synergy
Choked Estuary
16%inclusion123 decks768 decks
0%synergy
Port Town
15%inclusion118 decks768 decks
-2%synergy
Path of Ancestry
15%inclusion112 decks768 decks
-13%synergy
Shineshadow Snarl
13%inclusion101 decks768 decks
2%synergy
Myriad Landscape
12%inclusion93 decks768 decks
4%synergy
Abandoned Campground
8.6%inclusion66 decks768 decks
8%synergy
Irrigated Farmland
8.3%inclusion64 decks768 decks
1%synergy
Tranquil Cove
8.1%inclusion62 decks768 decks
2%synergy
Glasswing Grace
7.8%inclusion60 decks768 decks
5%synergy
Scoured Barrens
7.6%inclusion58 decks768 decks
1%synergy
Fetid Heath
7.4%inclusion57 decks768 decks
-5%synergy
Desolate Mire
7.4%inclusion57 decks768 decks
1%synergy
Neglected Manor
7.3%inclusion56 decks768 decks
7%synergy
Fetid Pools
6.9%inclusion53 decks768 decks
0%synergy
Murky Sewer
6.6%inclusion51 decks768 decks
6%synergy
Dismal Backwater
6.3%inclusion48 decks768 decks
0%synergy
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