The Master of Keys (Commander) - Budget Core

The Master of Keys
Rank #301
43decks
As CommanderAs CardAverage DeckDecksView Precon
Bracket
All12345
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.
Deck Filters
Cardsphere
Archidekt
Commander Spellbook
Moxfield
Scryfall
MTGStocks
New Cards
High Synergy Cards
Top Cards
Creatures
Instants
Sorceries
Utility Artifacts
Enchantments
Battles
Utility Lands
Mana Artifacts
Lands
Back to Top
Primary Research
17%inclusion1 decks6 decks
17%synergy
Killian, Decisive Mentor
7.7%inclusion1 decks13 decks
7%synergy
High Synergy Cards
Inquisitive Glimmer
77%inclusion33 decks43 decks
70%synergy
Scrabbling Skullcrab
65%inclusion28 decks43 decks
64%synergy
Mesa Enchantress
70%inclusion30 decks43 decks
61%synergy
Cemetery Tampering
53%inclusion23 decks43 decks
53%synergy
Seal of Cleansing
51%inclusion22 decks43 decks
50%synergy
Gravebreaker Lamia
49%inclusion21 decks43 decks
48%synergy
Defiled Crypt // Cadaver Lab
47%inclusion20 decks43 decks
46%synergy
Demon of Fate's Design
51%inclusion22 decks43 decks
46%synergy
Doomwake Giant
51%inclusion22 decks43 decks
45%synergy
Starfield Mystic
51%inclusion22 decks43 decks
45%synergy
Top Cards
Entity Tracker
49%inclusion21 decks43 decks
43%synergy
Unable to Scream
42%inclusion18 decks43 decks
41%synergy
Fear of Impostors
42%inclusion18 decks43 decks
40%synergy
Victor, Valgavoth's Seneschal
42%inclusion18 decks43 decks
40%synergy
Stillness in Motion
41%inclusion11 decks27 decks
40%synergy
Sigil of the Empty Throne
40%inclusion17 decks43 decks
34%synergy
Sage of Mysteries
40%inclusion17 decks43 decks
39%synergy
Ghostly Dancers
40%inclusion17 decks43 decks
37%synergy
Singularity Rupture
39%inclusion9 decks23 decks
37%synergy
Skullsnap Nuisance
37%inclusion16 decks43 decks
37%synergy
Creatures
Fear of Sleep Paralysis
33%inclusion14 decks43 decks
28%synergy
Mindwrack Harpy
33%inclusion14 decks43 decks
32%synergy
Archon of Sun's Grace
28%inclusion12 decks43 decks
23%synergy
Gremlin Tamer
28%inclusion12 decks43 decks
27%synergy
Zur the Enchanter
28%inclusion12 decks43 decks
23%synergy
Soaring Lightbringer
26%inclusion11 decks43 decks
21%synergy
Silent Hallcreeper
26%inclusion11 decks43 decks
21%synergy
Grim Guardian
26%inclusion11 decks43 decks
23%synergy
Millikin
26%inclusion11 decks43 decks
25%synergy
Alseid of Life's Bounty
26%inclusion11 decks43 decks
24%synergy
Starnheim Courser
23%inclusion10 decks43 decks
20%synergy
Fear of Infinity
23%inclusion10 decks43 decks
23%synergy
Fear of Surveillance
23%inclusion10 decks43 decks
23%synergy
Appendage Amalgam
23%inclusion10 decks43 decks
23%synergy
Balemurk Leech
23%inclusion10 decks43 decks
23%synergy
Spirited Companion
21%inclusion9 decks43 decks
19%synergy
Aminatou, Veil Piercer
21%inclusion9 decks43 decks
20%synergy
Heliod, the Radiant Dawn
21%inclusion9 decks43 decks
17%synergy
Moon-Blessed Cleric
21%inclusion9 decks43 decks
16%synergy
Fear of Isolation
16%inclusion7 decks43 decks
16%synergy
Summon: Yojimbo
15%inclusion4 decks26 decks
14%synergy
Fear of Lost Teeth
14%inclusion6 decks43 decks
14%synergy
Deranged Assistant
14%inclusion6 decks43 decks
14%synergy
Creeping Peeper
14%inclusion6 decks43 decks
14%synergy
Nashi, Searcher in the Dark
14%inclusion6 decks43 decks
13%synergy
Callaphe, Beloved of the Sea
14%inclusion6 decks43 decks
13%synergy
Archetype of Imagination
14%inclusion6 decks43 decks
9%synergy
Ondu Spiritdancer
14%inclusion6 decks43 decks
8%synergy
Overlord of the Floodpits
12%inclusion5 decks43 decks
8%synergy
Ajani's Chosen
12%inclusion5 decks43 decks
11%synergy
Zur, Eternal Schemer
12%inclusion5 decks43 decks
8%synergy
Ashiok's Reaper
12%inclusion5 decks43 decks
11%synergy
Summon: Primal Odin
12%inclusion3 decks26 decks
7%synergy
Summon: Shiva
9.4%inclusion3 decks32 decks
9%synergy
Solemn Simulacrum
9.3%inclusion4 decks43 decks
-4%synergy
Optimistic Scavenger
9.3%inclusion4 decks43 decks
9%synergy
Patrician Geist
9.3%inclusion4 decks43 decks
9%synergy
Stitcher's Supplier
9.3%inclusion4 decks43 decks
9%synergy
Fear of the Dark
9.3%inclusion4 decks43 decks
9%synergy
Transcendent Envoy
9.3%inclusion4 decks43 decks
8%synergy
Emet-Selch of the Third Seat
7.7%inclusion2 decks26 decks
-2%synergy
Dreadwing Scavenger
7.5%inclusion3 decks40 decks
7%synergy
Fear of Falling
7.0%inclusion3 decks43 decks
7%synergy
The Mindskinner
7.0%inclusion3 decks43 decks
6%synergy
Fear of Failed Tests
7.0%inclusion3 decks43 decks
7%synergy
Spectral Snatcher
7.0%inclusion3 decks43 decks
7%synergy
Nighthowler
7.0%inclusion3 decks43 decks
7%synergy
Sun Titan
7.0%inclusion3 decks43 decks
-1%synergy
Nightmare Shepherd
7.0%inclusion3 decks43 decks
5%synergy
Auramancer
7.0%inclusion3 decks43 decks
4%synergy
Instants
Fact or Fiction
26%inclusion11 decks43 decks
22%synergy
Swords to Plowshares
26%inclusion11 decks43 decks
-42%synergy
Negate
23%inclusion10 decks43 decks
7%synergy
Thirst for Meaning
23%inclusion10 decks43 decks
22%synergy
Otherworldly Gaze
21%inclusion9 decks43 decks
19%synergy
Path to Exile
21%inclusion9 decks43 decks
-21%synergy
Frantic Search
16%inclusion7 decks43 decks
-2%synergy
Void Rend
16%inclusion7 decks43 decks
-18%synergy
Rowan's Grim Search
14%inclusion6 decks43 decks
14%synergy
Refute
10%inclusion4 decks41 decks
7%synergy
Drown in the Loch
9.3%inclusion4 decks43 decks
7%synergy
Forbidden Alchemy
9.3%inclusion4 decks43 decks
9%synergy
Unwanted Remake
9.3%inclusion4 decks43 decks
9%synergy
Dreams of Laguna
8.0%inclusion2 decks25 decks
8%synergy
Swallowed by Leviathan
8.0%inclusion2 decks25 decks
7%synergy
Utter End
7.0%inclusion3 decks43 decks
1%synergy
Drown in Dreams
7.0%inclusion3 decks43 decks
7%synergy
Live or Die
7.0%inclusion3 decks43 decks
7%synergy
Don't Make a Sound
7.0%inclusion3 decks43 decks
7%synergy
Mortify
7.0%inclusion3 decks43 decks
-2%synergy
Get Out
7.0%inclusion3 decks43 decks
7%synergy
Sorceries
Sevinne's Reclamation
30%inclusion13 decks43 decks
21%synergy
Extinguish All Hope
26%inclusion11 decks43 decks
24%synergy
Redress Fate
23%inclusion10 decks43 decks
18%synergy
Space-Time Anomaly
22%inclusion5 decks23 decks
20%synergy
Time Wipe
16%inclusion7 decks43 decks
10%synergy
Open the Vaults
16%inclusion7 decks43 decks
15%synergy
Dance of the Manse
16%inclusion7 decks43 decks
13%synergy
Brilliant Restoration
12%inclusion5 decks43 decks
10%synergy
Damn
12%inclusion5 decks43 decks
-9%synergy
Final Vengeance
12%inclusion5 decks43 decks
11%synergy
Resurgent Belief
9.3%inclusion4 decks43 decks
7%synergy
Inspiration from Beyond
7.3%inclusion3 decks41 decks
7%synergy
Commune with Evil
7.0%inclusion3 decks43 decks
7%synergy
Austere Command
7.0%inclusion3 decks43 decks
-1%synergy
Unmarked Grave
7.0%inclusion3 decks43 decks
6%synergy
Tome Scour
7.0%inclusion3 decks43 decks
7%synergy
Painful Truths
7.0%inclusion3 decks43 decks
4%synergy
Diresight
7.0%inclusion3 decks43 decks
6%synergy
Night's Whisper
7.0%inclusion3 decks43 decks
4%synergy
Compulsive Research
7.0%inclusion3 decks43 decks
6%synergy
Notion Rain
7.0%inclusion3 decks43 decks
7%synergy
Utility Artifacts
Wayfarer's Bauble
19%inclusion8 decks43 decks
11%synergy
Perpetual Timepiece
16%inclusion7 decks43 decks
16%synergy
Matzalantli, the Great Door
9.3%inclusion4 decks43 decks
7%synergy
The Everflowing Well
7.0%inclusion3 decks43 decks
6%synergy
Cloud Key
7.0%inclusion3 decks43 decks
4%synergy
Keys to the House
7.0%inclusion3 decks43 decks
7%synergy
Enchantments
Ethereal Armor
37%inclusion16 decks43 decks
33%synergy
Imprisoned in the Moon
35%inclusion15 decks43 decks
28%synergy
Seal of Removal
35%inclusion15 decks43 decks
34%synergy
Grasp of Fate
33%inclusion14 decks43 decks
26%synergy
The Tale of Tamiyo
33%inclusion14 decks43 decks
32%synergy
Seal of Doom
33%inclusion14 decks43 decks
32%synergy
All That Glitters
33%inclusion14 decks43 decks
24%synergy
Cacophony Unleashed
30%inclusion13 decks43 decks
29%synergy
Estrid's Invocation
30%inclusion13 decks43 decks
26%synergy
Secrets of the Dead
30%inclusion13 decks43 decks
30%synergy
Restricted Office // Lecture Hall
28%inclusion12 decks43 decks
26%synergy
Derelict Attic // Widow's Walk
28%inclusion12 decks43 decks
28%synergy
The Eldest Reborn
26%inclusion11 decks43 decks
23%synergy
Dress Down
26%inclusion11 decks43 decks
23%synergy
Propaganda
26%inclusion11 decks43 decks
-3%synergy
Bottomless Pool // Locker Room
23%inclusion10 decks43 decks
21%synergy
Glasswing Grace
21%inclusion9 decks43 decks
18%synergy
Darksteel Mutation
19%inclusion8 decks43 decks
13%synergy
Underwater Tunnel // Slimy Aquarium
19%inclusion8 decks43 decks
18%synergy
Mirrormade
19%inclusion8 decks43 decks
9%synergy
Shardmage's Rescue
19%inclusion8 decks43 decks
18%synergy
Soul Snare
19%inclusion8 decks43 decks
18%synergy
Surgical Suite // Hospital Room
19%inclusion8 decks43 decks
18%synergy
Ballad of the Black Flag
19%inclusion8 decks43 decks
18%synergy
Amphibian Downpour
19%inclusion8 decks43 decks
14%synergy
Ripples of Undeath
16%inclusion7 decks43 decks
14%synergy
King Narfi's Betrayal
16%inclusion7 decks43 decks
16%synergy
Utter Insignificance
16%inclusion7 decks43 decks
16%synergy
Sphere of Safety
16%inclusion7 decks43 decks
7%synergy
Cast Out
16%inclusion7 decks43 decks
13%synergy
Meat Locker // Drowned Diner
16%inclusion7 decks43 decks
16%synergy
Secret Arcade // Dusty Parlor
16%inclusion7 decks43 decks
12%synergy
Polluted Cistern // Dim Oubliette
16%inclusion7 decks43 decks
16%synergy
Minimus Containment
14%inclusion6 decks43 decks
14%synergy
Chronic Flooding
14%inclusion6 decks43 decks
14%synergy
Hopeless Nightmare
14%inclusion6 decks43 decks
14%synergy
Extravagant Replication
14%inclusion6 decks43 decks
9%synergy
Shark Typhoon
14%inclusion6 decks43 decks
8%synergy
Central Elevator // Promising Stairs
14%inclusion6 decks43 decks
13%synergy
The Restoration of Eiganjo
14%inclusion6 decks43 decks
13%synergy
Witness Protection
14%inclusion6 decks43 decks
12%synergy
Trapped in the Screen
12%inclusion5 decks43 decks
11%synergy
Cramped Vents // Access Maze
12%inclusion5 decks43 decks
9%synergy
Touch the Spirit Realm
12%inclusion5 decks43 decks
9%synergy
Genesis of the Daleks
12%inclusion5 decks43 decks
12%synergy
Elspeth Conquers Death
12%inclusion5 decks43 decks
11%synergy
Copy Enchantment
12%inclusion5 decks43 decks
7%synergy
Nowhere to Run
12%inclusion5 decks43 decks
10%synergy
Sheltered by Ghosts
12%inclusion5 decks43 decks
9%synergy
Ghostly Prison
12%inclusion5 decks43 decks
-11%synergy
Battles
Invasion of Theros
16%inclusion7 decks43 decks
15%synergy
Utility Lands
Bojuka Bog
26%inclusion11 decks43 decks
-1%synergy
Hall of Heliod's Generosity
12%inclusion5 decks43 decks
-1%synergy
Nephalia Drownyard
9.3%inclusion4 decks43 decks
9%synergy
Ishgard, the Holy See
7.7%inclusion2 decks26 decks
4%synergy
Cephalid Coliseum
7.0%inclusion3 decks43 decks
3%synergy
Mana Artifacts
Arcane Signet
70%inclusion30 decks43 decks
-18%synergy
Sol Ring
60%inclusion26 decks43 decks
-29%synergy
Azorius Signet
49%inclusion21 decks43 decks
19%synergy
Dimir Signet
47%inclusion20 decks43 decks
16%synergy
Orzhov Signet
44%inclusion19 decks43 decks
12%synergy
Talisman of Progress
30%inclusion13 decks43 decks
-14%synergy
Talisman of Hierarchy
28%inclusion12 decks43 decks
-17%synergy
Talisman of Dominance
23%inclusion10 decks43 decks
-27%synergy
Commander's Sphere
21%inclusion9 decks43 decks
3%synergy
Fellwar Stone
16%inclusion7 decks43 decks
-17%synergy
Mind Stone
16%inclusion7 decks43 decks
4%synergy
Obelisk of Esper
7.0%inclusion3 decks43 decks
6%synergy
Lands
Island
100%inclusion43 decks43 decks
7%synergy
Swamp
98%inclusion42 decks43 decks
6%synergy
Plains
98%inclusion42 decks43 decks
6%synergy
Command Tower
81%inclusion35 decks43 decks
-11%synergy
Contaminated Landscape
58%inclusion25 decks43 decks
45%synergy
Arcane Sanctum
58%inclusion25 decks43 decks
4%synergy
Exotic Orchard
56%inclusion24 decks43 decks
-3%synergy
Terramorphic Expanse
47%inclusion20 decks43 decks
31%synergy
Prairie Stream
47%inclusion20 decks43 decks
6%synergy
Evolving Wilds
42%inclusion18 decks43 decks
17%synergy
Sunken Hollow
42%inclusion18 decks43 decks
2%synergy
Glacial Fortress
40%inclusion17 decks43 decks
-3%synergy
Temple of Enlightenment
37%inclusion16 decks43 decks
22%synergy
Obscura Storefront
35%inclusion15 decks43 decks
26%synergy
Isolated Chapel
35%inclusion15 decks43 decks
-7%synergy
Temple of Deceit
30%inclusion13 decks43 decks
13%synergy
Caves of Koilos
30%inclusion13 decks43 decks
-5%synergy
Temple of Silence
30%inclusion13 decks43 decks
12%synergy
Shineshadow Snarl
30%inclusion13 decks43 decks
19%synergy
Choked Estuary
30%inclusion13 decks43 decks
14%synergy
Tainted Field
28%inclusion12 decks43 decks
21%synergy
Adarkar Wastes
28%inclusion12 decks43 decks
-4%synergy
Tainted Isle
26%inclusion11 decks43 decks
19%synergy
Port Town
26%inclusion11 decks43 decks
9%synergy
Dimir Aqueduct
26%inclusion11 decks43 decks
13%synergy
Azorius Chancery
23%inclusion10 decks43 decks
10%synergy
Myriad Landscape
23%inclusion10 decks43 decks
16%synergy
Valgavoth's Lair
23%inclusion10 decks43 decks
21%synergy
Skycloud Expanse
23%inclusion10 decks43 decks
8%synergy
Orzhov Basilica
23%inclusion10 decks43 decks
8%synergy
Path of Ancestry
23%inclusion10 decks43 decks
-5%synergy
Darkwater Catacombs
21%inclusion9 decks43 decks
6%synergy
Glasswing Grace
21%inclusion9 decks43 decks
18%synergy
Irrigated Farmland
21%inclusion9 decks43 decks
14%synergy
Drowned Catacomb
19%inclusion8 decks43 decks
-19%synergy
Underground River
19%inclusion8 decks43 decks
-16%synergy
Tranquil Cove
16%inclusion7 decks43 decks
10%synergy
Fetid Pools
14%inclusion6 decks43 decks
7%synergy
Fetid Heath
14%inclusion6 decks43 decks
1%synergy
Ash Barrens
14%inclusion6 decks43 decks
3%synergy
Escape Tunnel
12%inclusion5 decks43 decks
11%synergy
Scoured Barrens
12%inclusion5 decks43 decks
5%synergy
Vibrant Cityscape
10%inclusion2 decks21 decks
9%synergy
Desolate Mire
9.3%inclusion4 decks43 decks
2%synergy
Sunlit Marsh
9.3%inclusion4 decks43 decks
5%synergy
Thriving Moor
9.3%inclusion4 decks43 decks
5%synergy
Dismal Backwater
9.3%inclusion4 decks43 decks
3%synergy
Thriving Isle
7.0%inclusion3 decks43 decks
3%synergy
Esper Panorama
7.0%inclusion3 decks43 decks
4%synergy
River of Tears
7.0%inclusion3 decks43 decks
5%synergy
About UsContactPrivacy PolicyTerms of Service
Space Cow MediaArchidektCardsphereCommander SpellbookFABRECSpellvoid
Space Cow MediaArchidektCommander's Herald
Commander SpellbookFABRECSpellvoid
EDHREC is unofficial Fan Content permitted under the Fan Content Policy. Not approved/endorsed by Wizards. Portions of the materials used are property of Wizards of the Coast. ©Wizards of the Coast LLC.
next@15 test