The Master of Keys (Commander) - Budget

The Master of Keys
Rank #303
825decks
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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Creatures
Instants
Sorceries
Utility Artifacts
Enchantments
Battles
Utility Lands
Mana Artifacts
Lands
Back to Top
Super Intelligence
4.1%inclusion2 decks49 decks
4%synergy
Fall to Earth
2.4%inclusion1 decks42 decks
2%synergy
Daily Bugle Newspaper
2.4%inclusion1 decks42 decks
2%synergy
Dismissive Denial
2.4%inclusion1 decks42 decks
2%synergy
Frozen in Ice
2.4%inclusion1 decks42 decks
2%synergy
High Synergy Cards
Inquisitive Glimmer
70%inclusion577 decks825 decks
63%synergy
Mesa Enchantress
67%inclusion556 decks825 decks
59%synergy
Starfield Mystic
63%inclusion518 decks825 decks
56%synergy
Demon of Fate's Design
60%inclusion494 decks825 decks
55%synergy
Doomwake Giant
59%inclusion483 decks825 decks
53%synergy
Scrabbling Skullcrab
53%inclusion434 decks825 decks
52%synergy
Fear of Sleep Paralysis
56%inclusion458 decks825 decks
51%synergy
Gravebreaker Lamia
50%inclusion411 decks825 decks
49%synergy
Sigil of the Empty Throne
53%inclusion440 decks825 decks
48%synergy
Entity Tracker
53%inclusion441 decks825 decks
47%synergy
Top Cards
Victor, Valgavoth's Seneschal
48%inclusion396 decks825 decks
46%synergy
Secret Arcade // Dusty Parlor
47%inclusion388 decks825 decks
43%synergy
Mirrormade
44%inclusion367 decks825 decks
35%synergy
Redress Fate
44%inclusion364 decks825 decks
39%synergy
Swords to Plowshares
44%inclusion363 decks825 decks
-24%synergy
Fear of Impostors
43%inclusion354 decks825 decks
42%synergy
Sphere of Safety
43%inclusion352 decks825 decks
33%synergy
Defiled Crypt // Cadaver Lab
42%inclusion346 decks825 decks
41%synergy
Cemetery Tampering
40%inclusion333 decks825 decks
40%synergy
Bottomless Pool // Locker Room
40%inclusion332 decks825 decks
38%synergy
Creatures
Soaring Lightbringer
40%inclusion328 decks825 decks
35%synergy
Ghostly Dancers
40%inclusion327 decks825 decks
37%synergy
Moon-Blessed Cleric
37%inclusion307 decks825 decks
33%synergy
Ondu Spiritdancer
35%inclusion288 decks825 decks
29%synergy
Aminatou, Veil Piercer
34%inclusion281 decks825 decks
33%synergy
Skullsnap Nuisance
28%inclusion228 decks825 decks
27%synergy
Athreos, Shroud-Veiled
27%inclusion226 decks825 decks
23%synergy
Grim Guardian
27%inclusion224 decks825 decks
25%synergy
Archetype of Imagination
26%inclusion218 decks825 decks
22%synergy
Silent Hallcreeper
26%inclusion217 decks825 decks
22%synergy
Archon of Sun's Grace
25%inclusion206 decks825 decks
21%synergy
Fear of Infinity
24%inclusion199 decks825 decks
24%synergy
Zur the Enchanter
24%inclusion198 decks825 decks
19%synergy
Overlord of the Floodpits
24%inclusion194 decks825 decks
20%synergy
Sage of Mysteries
23%inclusion189 decks825 decks
23%synergy
Balemurk Leech
23%inclusion187 decks825 decks
22%synergy
Mindwrack Harpy
21%inclusion173 decks825 decks
21%synergy
Gremlin Tamer
20%inclusion167 decks825 decks
19%synergy
Heliod, the Radiant Dawn
19%inclusion158 decks825 decks
16%synergy
Ancient Cellarspawn
19%inclusion155 decks825 decks
16%synergy
Nightmare Shepherd
18%inclusion149 decks825 decks
16%synergy
Alseid of Life's Bounty
18%inclusion147 decks825 decks
16%synergy
Fear of Surveillance
17%inclusion141 decks825 decks
17%synergy
Zur, Eternal Schemer
16%inclusion136 decks825 decks
13%synergy
Spirited Companion
16%inclusion134 decks825 decks
14%synergy
Auramancer
16%inclusion130 decks825 decks
13%synergy
Solemn Simulacrum
15%inclusion127 decks825 decks
2%synergy
Enduring Curiosity
14%inclusion115 decks825 decks
6%synergy
Nashi, Searcher in the Dark
13%inclusion108 decks825 decks
13%synergy
Starnheim Courser
13%inclusion104 decks825 decks
9%synergy
Appendage Amalgam
12%inclusion96 decks825 decks
11%synergy
Fear of the Dark
11%inclusion93 decks825 decks
11%synergy
Millikin
11%inclusion92 decks825 decks
11%synergy
Creeping Peeper
11%inclusion90 decks825 decks
11%synergy
Arvinox, the Mind Flail
11%inclusion89 decks825 decks
9%synergy
Optimistic Scavenger
10%inclusion82 decks825 decks
10%synergy
Ghostly Keybearer
10%inclusion81 decks825 decks
10%synergy
Metamorphosis Fanatic
10%inclusion80 decks825 decks
6%synergy
Fear of Failed Tests
8.8%inclusion73 decks825 decks
8%synergy
Fear of Lost Teeth
8.7%inclusion72 decks825 decks
9%synergy
Burnished Hart
8.4%inclusion69 decks825 decks
5%synergy
Fear of Isolation
8.2%inclusion68 decks825 decks
8%synergy
Phenomenon Investigators
8.1%inclusion67 decks825 decks
8%synergy
Stitcher's Supplier
8.0%inclusion66 decks825 decks
7%synergy
Fear of Immobility
7.6%inclusion63 decks825 decks
7%synergy
Overlord of the Mistmoors
7.4%inclusion61 decks825 decks
5%synergy
Eiganjo Dynastorian
7.0%inclusion11 decks158 decks
6%synergy
Dream Eater
6.9%inclusion57 decks825 decks
6%synergy
Clammy Prowler
6.5%inclusion54 decks825 decks
6%synergy
Fear of Falling
6.4%inclusion53 decks825 decks
6%synergy
Instants
Thirst for Meaning
37%inclusion307 decks825 decks
36%synergy
Otherworldly Gaze
29%inclusion241 decks825 decks
27%synergy
Arcane Denial
26%inclusion215 decks825 decks
6%synergy
Counterspell
24%inclusion194 decks825 decks
-18%synergy
Path to Exile
23%inclusion193 decks825 decks
-19%synergy
Negate
21%inclusion177 decks825 decks
5%synergy
Void Rend
20%inclusion164 decks825 decks
-15%synergy
Frantic Search
18%inclusion152 decks825 decks
-0%synergy
Utter End
16%inclusion135 decks825 decks
10%synergy
Inkshield
16%inclusion130 decks825 decks
6%synergy
Brainstorm
14%inclusion119 decks825 decks
-2%synergy
Return to Dust
11%inclusion88 decks825 decks
7%synergy
Fact or Fiction
9.5%inclusion78 decks825 decks
6%synergy
Telling Time
8.1%inclusion67 decks825 decks
6%synergy
An Offer You Can't Refuse
8.1%inclusion67 decks825 decks
-20%synergy
Don't Make a Sound
8.0%inclusion66 decks824 decks
8%synergy
Get Out
7.4%inclusion61 decks825 decks
7%synergy
Dovin's Veto
6.5%inclusion54 decks825 decks
-20%synergy
Glimmerburst
6.1%inclusion50 decks824 decks
6%synergy
Dark Ritual
5.9%inclusion49 decks825 decks
-14%synergy
Generous Gift
5.9%inclusion49 decks825 decks
-8%synergy
Murder
5.8%inclusion48 decks825 decks
4%synergy
Sorceries
Sevinne's Reclamation
29%inclusion239 decks825 decks
20%synergy
Time Wipe
28%inclusion227 decks825 decks
21%synergy
Extinguish All Hope
27%inclusion219 decks825 decks
25%synergy
Dance of the Manse
23%inclusion190 decks825 decks
20%synergy
Singularity Rupture
21%inclusion96 decks462 decks
19%synergy
Ponder
12%inclusion102 decks825 decks
3%synergy
Read the Bones
12%inclusion95 decks825 decks
8%synergy
Terminus
11%inclusion90 decks825 decks
7%synergy
Resurgent Belief
11%inclusion89 decks825 decks
9%synergy
Portent
8.6%inclusion71 decks825 decks
5%synergy
Diabolic Vision
8.4%inclusion69 decks825 decks
6%synergy
Aminatou's Augury
7.6%inclusion63 decks825 decks
6%synergy
Space-Time Anomaly
7.5%inclusion34 decks452 decks
6%synergy
Final Vengeance
7.0%inclusion58 decks825 decks
7%synergy
Windfall
6.8%inclusion56 decks825 decks
-6%synergy
Open the Vaults
6.8%inclusion56 decks825 decks
6%synergy
Demonic Counsel
6.4%inclusion53 decks825 decks
5%synergy
Austere Command
6.3%inclusion52 decks825 decks
-2%synergy
Glimpse the Unthinkable
5.9%inclusion49 decks825 decks
5%synergy
Entreat the Angels
5.5%inclusion45 decks825 decks
4%synergy
Buried Alive
5.5%inclusion45 decks825 decks
1%synergy
Supreme Verdict
5.3%inclusion44 decks825 decks
-9%synergy
Brilliant Restoration
5.3%inclusion44 decks825 decks
4%synergy
Utility Artifacts
Keys to the House
17%inclusion139 decks825 decks
17%synergy
Cloud Key
11%inclusion90 decks825 decks
8%synergy
Wayfarer's Bauble
10%inclusion85 decks825 decks
3%synergy
Swiftfoot Boots
9.3%inclusion77 decks825 decks
-15%synergy
Perpetual Timepiece
5.9%inclusion49 decks825 decks
6%synergy
Enchantments
Seal of Cleansing
39%inclusion324 decks825 decks
38%synergy
Ethereal Armor
36%inclusion301 decks825 decks
32%synergy
Cramped Vents // Access Maze
33%inclusion269 decks825 decks
30%synergy
Extravagant Replication
32%inclusion263 decks825 decks
27%synergy
Grasp of Fate
31%inclusion256 decks825 decks
25%synergy
All That Glitters
31%inclusion255 decks825 decks
23%synergy
Restricted Office // Lecture Hall
31%inclusion255 decks825 decks
29%synergy
Shark Typhoon
30%inclusion249 decks825 decks
24%synergy
Dress Down
30%inclusion248 decks825 decks
28%synergy
Timely Ward
29%inclusion240 decks825 decks
24%synergy
The Eldest Reborn
28%inclusion229 decks825 decks
25%synergy
Monologue Tax
28%inclusion228 decks825 decks
21%synergy
Propaganda
28%inclusion227 decks825 decks
-2%synergy
Central Elevator // Promising Stairs
27%inclusion222 decks825 decks
26%synergy
Cacophony Unleashed
26%inclusion211 decks825 decks
24%synergy
Ripples of Undeath
25%inclusion204 decks825 decks
22%synergy
Derelict Attic // Widow's Walk
23%inclusion190 decks824 decks
23%synergy
The Tale of Tamiyo
23%inclusion189 decks825 decks
23%synergy
Estrid's Invocation
23%inclusion187 decks825 decks
18%synergy
Stillness in Motion
22%inclusion132 decks596 decks
22%synergy
Meat Locker // Drowned Diner
22%inclusion181 decks824 decks
21%synergy
Imprisoned in the Moon
22%inclusion180 decks825 decks
15%synergy
Dazzling Theater // Prop Room
22%inclusion178 decks825 decks
20%synergy
Polluted Cistern // Dim Oubliette
21%inclusion177 decks825 decks
21%synergy
Seal of Removal
20%inclusion165 decks825 decks
19%synergy
One with the Multiverse
20%inclusion161 decks825 decks
15%synergy
Underwater Tunnel // Slimy Aquarium
19%inclusion157 decks825 decks
19%synergy
Mirror Room // Fractured Realm
19%inclusion153 decks825 decks
16%synergy
Surgical Suite // Hospital Room
18%inclusion152 decks825 decks
18%synergy
Secrets of the Dead
18%inclusion151 decks825 decks
18%synergy
Cast Out
18%inclusion147 decks825 decks
15%synergy
Unable to Scream
17%inclusion140 decks825 decks
16%synergy
Amphibian Downpour
17%inclusion140 decks825 decks
12%synergy
Darksteel Mutation
17%inclusion139 decks825 decks
11%synergy
Ghostly Prison
15%inclusion123 decks825 decks
-8%synergy
Copy Enchantment
15%inclusion121 decks825 decks
10%synergy
Phyrexian Arena
14%inclusion114 decks825 decks
-0%synergy
Animate Dead
14%inclusion113 decks825 decks
4%synergy
Unholy Annex // Ritual Chamber
13%inclusion110 decks825 decks
13%synergy
Funeral Room // Awakening Hall
13%inclusion108 decks825 decks
12%synergy
Nowhere to Run
13%inclusion108 decks825 decks
12%synergy
Sheltered by Ghosts
13%inclusion106 decks825 decks
10%synergy
Spirit-Sister's Call
13%inclusion106 decks825 decks
12%synergy
Seal of Doom
13%inclusion105 decks825 decks
12%synergy
Trapped in the Screen
12%inclusion95 decks825 decks
11%synergy
Grand Entryway // Elegant Rotunda
11%inclusion88 decks825 decks
10%synergy
Soul Snare
10%inclusion82 decks825 decks
10%synergy
Life Insurance
10%inclusion81 decks825 decks
8%synergy
Witness Protection
9.5%inclusion78 decks825 decks
8%synergy
Dollmaker's Shop // Porcelain Gallery
8.6%inclusion71 decks825 decks
8%synergy
Battles
Invasion of Theros
10%inclusion83 decks825 decks
9%synergy
Utility Lands
Bojuka Bog
38%inclusion310 decks825 decks
11%synergy
Hall of Heliod's Generosity
33%inclusion275 decks825 decks
20%synergy
Halimar Depths
20%inclusion162 decks825 decks
15%synergy
Reliquary Tower
8.0%inclusion66 decks825 decks
-26%synergy
Cephalid Coliseum
7.5%inclusion62 decks825 decks
4%synergy
Rogue's Passage
5.7%inclusion47 decks825 decks
-4%synergy
Mana Artifacts
Arcane Signet
80%inclusion661 decks825 decks
-8%synergy
Sol Ring
78%inclusion643 decks825 decks
-12%synergy
Azorius Signet
57%inclusion467 decks825 decks
27%synergy
Orzhov Signet
54%inclusion447 decks825 decks
23%synergy
Dimir Signet
36%inclusion297 decks825 decks
6%synergy
Commander's Sphere
34%inclusion278 decks825 decks
16%synergy
Mind Stone
33%inclusion273 decks825 decks
21%synergy
Talisman of Progress
29%inclusion243 decks825 decks
-15%synergy
Talisman of Dominance
29%inclusion236 decks825 decks
-22%synergy
Talisman of Hierarchy
25%inclusion203 decks825 decks
-20%synergy
Fellwar Stone
19%inclusion159 decks825 decks
-14%synergy
Lands
Island
99%inclusion818 decks825 decks
6%synergy
Swamp
99%inclusion814 decks825 decks
7%synergy
Plains
98%inclusion811 decks825 decks
6%synergy
Command Tower
87%inclusion715 decks825 decks
-6%synergy
Arcane Sanctum
73%inclusion604 decks825 decks
19%synergy
Evolving Wilds
52%inclusion429 decks825 decks
28%synergy
Caves of Koilos
51%inclusion420 decks825 decks
15%synergy
Temple of Enlightenment
51%inclusion417 decks825 decks
35%synergy
Terramorphic Expanse
49%inclusion408 decks825 decks
34%synergy
Adarkar Wastes
48%inclusion399 decks825 decks
16%synergy
Temple of Silence
48%inclusion398 decks825 decks
30%synergy
Temple of Deceit
47%inclusion385 decks825 decks
30%synergy
Exotic Orchard
45%inclusion373 decks825 decks
-14%synergy
Obscura Storefront
41%inclusion342 decks825 decks
32%synergy
Prairie Stream
41%inclusion336 decks825 decks
0%synergy
Underground River
39%inclusion325 decks825 decks
4%synergy
Dimir Aqueduct
39%inclusion320 decks825 decks
26%synergy
Azorius Chancery
39%inclusion319 decks825 decks
25%synergy
Orzhov Basilica
37%inclusion307 decks825 decks
22%synergy
Sunken Hollow
36%inclusion294 decks825 decks
-4%synergy
Tainted Field
35%inclusion285 decks825 decks
28%synergy
Tainted Isle
34%inclusion281 decks825 decks
28%synergy
Glacial Fortress
34%inclusion281 decks825 decks
-9%synergy
Isolated Chapel
32%inclusion263 decks825 decks
-10%synergy
Contaminated Landscape
29%inclusion239 decks825 decks
15%synergy
Ash Barrens
27%inclusion222 decks825 decks
16%synergy
Valgavoth's Lair
21%inclusion175 decks825 decks
19%synergy
Thriving Isle
20%inclusion161 decks825 decks
15%synergy
Thriving Heath
19%inclusion160 decks825 decks
15%synergy
Thriving Moor
19%inclusion155 decks825 decks
15%synergy
Drowned Catacomb
18%inclusion152 decks825 decks
-20%synergy
Darkwater Catacombs
17%inclusion142 decks825 decks
2%synergy
Skycloud Expanse
17%inclusion140 decks825 decks
2%synergy
Choked Estuary
16%inclusion136 decks825 decks
-0%synergy
Port Town
16%inclusion134 decks825 decks
-1%synergy
Path of Ancestry
15%inclusion125 decks825 decks
-13%synergy
Shineshadow Snarl
13%inclusion109 decks825 decks
2%synergy
Myriad Landscape
12%inclusion96 decks825 decks
4%synergy
Irrigated Farmland
8.2%inclusion68 decks825 decks
1%synergy
Abandoned Campground
8.0%inclusion66 decks825 decks
7%synergy
Desolate Mire
8.0%inclusion66 decks825 decks
1%synergy
Fetid Heath
7.8%inclusion64 decks825 decks
-6%synergy
Tranquil Cove
7.4%inclusion61 decks825 decks
1%synergy
Glasswing Grace
7.3%inclusion60 decks825 decks
4%synergy
Neglected Manor
6.9%inclusion57 decks825 decks
6%synergy
Fetid Pools
6.8%inclusion56 decks825 decks
0%synergy
Murky Sewer
6.8%inclusion56 decks825 decks
6%synergy
Scoured Barrens
6.5%inclusion54 decks825 decks
0%synergy
Dismal Backwater
6.3%inclusion52 decks825 decks
0%synergy
Forum of Amity
5.1%inclusion8 decks158 decks
4%synergy
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