The Master of Keys (Commander) - Optimized

The Master of Keys
Rank #304
282decks
As CommanderAs CardAverage DeckDecksView Precon
Bracket
All12345
Budget
Any$$$$
Background image for What if Thassa's Oracle Were Banned?
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
Game Changers
Creatures
Instants
Sorceries
Utility Artifacts
Enchantments
Planeswalkers
Utility Lands
Mana Artifacts
Lands
Back to Top
Mornsong Aria
5.6%inclusion4 decks72 decks
5%synergy
Voracious Tome-Skimmer
2.8%inclusion2 decks72 decks
2%synergy
Shredder's Technique
2.4%inclusion1 decks41 decks
0%synergy
Moonshadow
1.5%inclusion1 decks67 decks
1%synergy
Thirst for Identity
1.5%inclusion1 decks67 decks
0%synergy
High Synergy Cards
Animate Dead
76%inclusion215 decks282 decks
67%synergy
Ripples of Undeath
66%inclusion187 decks282 decks
64%synergy
Necromancy
67%inclusion188 decks282 decks
62%synergy
Dress Down
63%inclusion177 decks282 decks
60%synergy
Inquisitive Glimmer
59%inclusion165 decks282 decks
51%synergy
Entomb
57%inclusion161 decks282 decks
50%synergy
Abdel Adrian, Gorion's Ward
52%inclusion146 decks282 decks
50%synergy
Mystic Remora
71%inclusion199 decks282 decks
50%synergy
Sevinne's Reclamation
55%inclusion156 decks282 decks
46%synergy
Entity Tracker
52%inclusion148 decks282 decks
46%synergy
Top Cards
Swords to Plowshares
63%inclusion178 decks282 decks
-5%synergy
Mesa Enchantress
53%inclusion150 decks282 decks
44%synergy
Mirrormade
49%inclusion139 decks282 decks
40%synergy
Starfield Mystic
46%inclusion131 decks282 decks
40%synergy
Gravebreaker Lamia
46%inclusion129 decks282 decks
45%synergy
Blind Obedience
44%inclusion123 decks282 decks
32%synergy
Demon of Fate's Design
44%inclusion123 decks282 decks
38%synergy
Dance of the Dead
43%inclusion122 decks282 decks
41%synergy
Dark Ritual
43%inclusion120 decks282 decks
23%synergy
Scrabbling Skullcrab
42%inclusion119 decks282 decks
41%synergy
Game Changers
Rhystic Study
63%inclusion178 decks282 decks
32%synergy
Smothering Tithe
63%inclusion177 decks282 decks
32%synergy
Enlightened Tutor
50%inclusion140 decks282 decks
30%synergy
Demonic Tutor
43%inclusion122 decks282 decks
23%synergy
Vampiric Tutor
38%inclusion106 decks282 decks
21%synergy
Thassa's Oracle
32%inclusion91 decks282 decks
23%synergy
Cyclonic Rift
30%inclusion86 decks282 decks
7%synergy
Fierce Guardianship
30%inclusion85 decks282 decks
10%synergy
Necropotence
30%inclusion84 decks282 decks
23%synergy
Ancient Tomb
28%inclusion78 decks282 decks
15%synergy
Creatures
Overlord of the Balemurk
40%inclusion112 decks282 decks
38%synergy
Ondu Spiritdancer
37%inclusion105 decks282 decks
31%synergy
Esper Sentinel
37%inclusion104 decks282 decks
10%synergy
Overlord of the Floodpits
37%inclusion103 decks282 decks
33%synergy
Fear of Sleep Paralysis
35%inclusion98 decks282 decks
29%synergy
Doomwake Giant
35%inclusion98 decks282 decks
29%synergy
Fear of Impostors
34%inclusion95 decks282 decks
32%synergy
Zur, Eternal Schemer
32%inclusion90 decks282 decks
29%synergy
Lotho, Corrupt Shirriff
29%inclusion83 decks282 decks
13%synergy
Victor, Valgavoth's Seneschal
28%inclusion80 decks282 decks
26%synergy
Grand Abolisher
28%inclusion80 decks282 decks
14%synergy
Zur the Enchanter
24%inclusion67 decks282 decks
19%synergy
Heliod, the Radiant Dawn
22%inclusion63 decks282 decks
19%synergy
Hullbreaker Horror
22%inclusion63 decks282 decks
16%synergy
Valley Floodcaller
22%inclusion62 decks282 decks
18%synergy
Grim Guardian
22%inclusion61 decks282 decks
19%synergy
Orcish Bowmasters
21%inclusion60 decks282 decks
11%synergy
Moon-Blessed Cleric
21%inclusion58 decks282 decks
16%synergy
Ghostly Dancers
20%inclusion56 decks282 decks
17%synergy
Ledger Shredder
19%inclusion54 decks282 decks
10%synergy
Silent Hallcreeper
19%inclusion53 decks282 decks
14%synergy
Displacer Kitten
18%inclusion52 decks282 decks
12%synergy
Soaring Lightbringer
18%inclusion51 decks282 decks
13%synergy
Enduring Curiosity
17%inclusion49 decks282 decks
9%synergy
Lurrus of the Dream-Den
16%inclusion45 decks282 decks
14%synergy
Aminatou, Veil Piercer
15%inclusion42 decks282 decks
14%synergy
Hedron Crab
15%inclusion41 decks282 decks
14%synergy
Opposition Agent
13%inclusion38 decks282 decks
5%synergy
Balemurk Leech
13%inclusion38 decks282 decks
13%synergy
Ranger-Captain of Eos
12%inclusion35 decks282 decks
6%synergy
Gremlin Tamer
12%inclusion34 decks282 decks
11%synergy
Talion, the Kindly Lord
12%inclusion33 decks282 decks
4%synergy
Wan Shi Tong, Librarian
12%inclusion12 decks104 decks
6%synergy
Archon of Sun's Grace
11%inclusion32 decks282 decks
7%synergy
Psychic Frog
11%inclusion32 decks282 decks
4%synergy
Archetype of Imagination
11%inclusion31 decks282 decks
6%synergy
Drannith Magistrate
11%inclusion30 decks282 decks
3%synergy
Mindwrack Harpy
11%inclusion30 decks282 decks
10%synergy
Voice of Victory
11%inclusion25 decks235 decks
2%synergy
Overlord of the Mistmoors
10%inclusion28 decks282 decks
8%synergy
Mockingbird
10%inclusion28 decks282 decks
6%synergy
Archivist of Oghma
10%inclusion27 decks282 decks
3%synergy
Ancient Cellarspawn
9.2%inclusion26 decks282 decks
6%synergy
Skullsnap Nuisance
9.2%inclusion26 decks282 decks
9%synergy
Faerie Mastermind
8.5%inclusion24 decks282 decks
-1%synergy
Spirited Companion
8.2%inclusion23 decks282 decks
6%synergy
Sage of Mysteries
7.8%inclusion22 decks282 decks
7%synergy
Nightmare Shepherd
7.8%inclusion22 decks282 decks
5%synergy
Athreos, Shroud-Veiled
7.8%inclusion22 decks282 decks
3%synergy
Laboratory Maniac
7.4%inclusion21 decks282 decks
4%synergy
Instants
An Offer You Can't Refuse
41%inclusion117 decks282 decks
14%synergy
Path to Exile
34%inclusion95 decks282 decks
-9%synergy
Counterspell
32%inclusion89 decks282 decks
-10%synergy
Swan Song
31%inclusion87 decks282 decks
11%synergy
Arcane Denial
29%inclusion81 decks282 decks
8%synergy
Mana Drain
27%inclusion75 decks282 decks
9%synergy
Silence
25%inclusion71 decks282 decks
15%synergy
Mystical Tutor
24%inclusion68 decks282 decks
13%synergy
Force of Will
23%inclusion65 decks282 decks
11%synergy
Flusterstorm
21%inclusion58 decks282 decks
13%synergy
Force of Negation
20%inclusion56 decks282 decks
8%synergy
Demonic Consultation
19%inclusion54 decks282 decks
11%synergy
Dovin's Veto
19%inclusion53 decks282 decks
-7%synergy
Sink into Stupor
18%inclusion52 decks282 decks
6%synergy
Gifts Ungiven
18%inclusion50 decks282 decks
15%synergy
Intuition
16%inclusion45 decks282 decks
14%synergy
Borne Upon a Wind
16%inclusion44 decks282 decks
11%synergy
Cabal Ritual
15%inclusion43 decks282 decks
12%synergy
Tainted Pact
15%inclusion42 decks282 decks
8%synergy
Frantic Search
14%inclusion39 decks282 decks
-4%synergy
Brainstorm
13%inclusion38 decks282 decks
-4%synergy
Inkshield
13%inclusion36 decks282 decks
3%synergy
Teferi's Protection
12%inclusion35 decks282 decks
-4%synergy
Pact of Negation
12%inclusion35 decks282 decks
5%synergy
Void Rend
12%inclusion35 decks282 decks
-22%synergy
Mindbreak Trap
12%inclusion34 decks282 decks
5%synergy
Thirst for Meaning
12%inclusion33 decks282 decks
10%synergy
Mental Misstep
11%inclusion30 decks282 decks
4%synergy
Otherworldly Gaze
11%inclusion30 decks282 decks
8%synergy
Into the Flood Maw
10%inclusion27 decks282 decks
6%synergy
Fell the Profane
7.8%inclusion22 decks282 decks
-1%synergy
Negate
7.8%inclusion22 decks282 decks
-9%synergy
Anguished Unmaking
7.8%inclusion22 decks282 decks
-18%synergy
Muddle the Mixture
7.4%inclusion21 decks282 decks
4%synergy
Utter End
7.1%inclusion20 decks282 decks
1%synergy
Chain of Vapor
6.4%inclusion18 decks282 decks
3%synergy
Deadly Rollick
6.0%inclusion17 decks282 decks
-9%synergy
Ad Nauseam
6.0%inclusion17 decks282 decks
4%synergy
Waterlogged Teachings
6.0%inclusion17 decks282 decks
1%synergy
Sorceries
Windfall
29%inclusion81 decks282 decks
15%synergy
Reanimate
29%inclusion81 decks282 decks
13%synergy
Redress Fate
26%inclusion72 decks282 decks
20%synergy
Toxic Deluge
22%inclusion61 decks282 decks
2%synergy
Demonic Counsel
13%inclusion38 decks282 decks
12%synergy
Damn
13%inclusion36 decks282 decks
-8%synergy
Glimpse the Unthinkable
12%inclusion35 decks282 decks
12%synergy
Singularity Rupture
12%inclusion19 decks155 decks
10%synergy
Lively Dirge
12%inclusion33 decks282 decks
10%synergy
Idyllic Tutor
11%inclusion31 decks282 decks
7%synergy
Unmarked Grave
10%inclusion29 decks282 decks
9%synergy
Extinguish All Hope
10%inclusion29 decks282 decks
9%synergy
Supreme Verdict
10%inclusion27 decks282 decks
-5%synergy
Imperial Seal
8.9%inclusion25 decks282 decks
2%synergy
Replenish
8.9%inclusion25 decks282 decks
7%synergy
Beseech the Mirror
8.9%inclusion25 decks282 decks
5%synergy
Dance of the Manse
8.5%inclusion24 decks282 decks
5%synergy
Buried Alive
7.8%inclusion22 decks282 decks
4%synergy
Farewell
7.8%inclusion22 decks282 decks
-5%synergy
Time Wipe
7.4%inclusion21 decks282 decks
1%synergy
Resurgent Belief
6.7%inclusion19 decks282 decks
5%synergy
Ponder
6.0%inclusion17 decks282 decks
-3%synergy
Utility Artifacts
The One Ring
24%inclusion69 decks282 decks
11%synergy
Mesmeric Orb
21%inclusion58 decks282 decks
19%synergy
Wishclaw Talisman
20%inclusion57 decks282 decks
12%synergy
Lightning Greaves
9.2%inclusion26 decks282 decks
-13%synergy
Sensei's Divining Top
5.7%inclusion16 decks282 decks
-4%synergy
Cloud Key
5.7%inclusion16 decks282 decks
2%synergy
Enchantments
Sphere of Safety
42%inclusion118 decks282 decks
32%synergy
Amphibian Downpour
42%inclusion118 decks282 decks
37%synergy
Secret Arcade // Dusty Parlor
41%inclusion115 decks282 decks
36%synergy
Propaganda
36%inclusion101 decks282 decks
8%synergy
Ghostly Prison
32%inclusion91 decks282 decks
10%synergy
Grasp of Fate
30%inclusion86 decks282 decks
24%synergy
Seal of Cleansing
30%inclusion86 decks282 decks
29%synergy
The Meathook Massacre
30%inclusion85 decks282 decks
27%synergy
Tinybones Joins Up
28%inclusion80 decks282 decks
27%synergy
Starfield of Nyx
26%inclusion73 decks282 decks
22%synergy
Cemetery Tampering
26%inclusion72 decks282 decks
25%synergy
Sigil of the Empty Throne
24%inclusion67 decks282 decks
18%synergy
Estrid's Invocation
23%inclusion64 decks282 decks
18%synergy
Monologue Tax
22%inclusion61 decks282 decks
15%synergy
Touch the Spirit Realm
21%inclusion60 decks282 decks
19%synergy
Greater Auramancy
19%inclusion54 decks282 decks
15%synergy
Cacophony Unleashed
19%inclusion53 decks282 decks
17%synergy
Static Prison
18%inclusion52 decks282 decks
18%synergy
Darksteel Mutation
18%inclusion51 decks282 decks
12%synergy
Black Market Connections
18%inclusion51 decks282 decks
4%synergy
Leyline of Anticipation
16%inclusion46 decks282 decks
12%synergy
Seal of Removal
16%inclusion46 decks282 decks
16%synergy
Out of the Tombs
16%inclusion44 decks282 decks
15%synergy
Shark Typhoon
16%inclusion44 decks282 decks
10%synergy
Extravagant Replication
15%inclusion42 decks282 decks
10%synergy
Defiled Crypt // Cadaver Lab
15%inclusion41 decks282 decks
14%synergy
Stillness in Motion
14%inclusion33 decks228 decks
14%synergy
Timely Ward
14%inclusion40 decks282 decks
9%synergy
Phyrexian Arena
14%inclusion39 decks282 decks
0%synergy
Trouble in Pairs
13%inclusion38 decks282 decks
8%synergy
Polluted Cistern // Dim Oubliette
13%inclusion37 decks282 decks
13%synergy
The Tale of Tamiyo
13%inclusion36 decks282 decks
12%synergy
Sheltered by Ghosts
12%inclusion35 decks282 decks
10%synergy
Authority of the Consuls
12%inclusion34 decks282 decks
0%synergy
Mirror Room // Fractured Realm
12%inclusion34 decks282 decks
10%synergy
Copy Enchantment
12%inclusion34 decks282 decks
7%synergy
Enchanted Evening
12%inclusion33 decks282 decks
10%synergy
Restricted Office // Lecture Hall
11%inclusion32 decks282 decks
9%synergy
Bottomless Pool // Locker Room
11%inclusion31 decks282 decks
9%synergy
Land Tax
11%inclusion31 decks282 decks
5%synergy
Hallowed Haunting
11%inclusion31 decks282 decks
9%synergy
Aura of Silence
11%inclusion31 decks282 decks
8%synergy
Central Elevator // Promising Stairs
11%inclusion30 decks282 decks
10%synergy
Ethereal Armor
11%inclusion30 decks282 decks
6%synergy
The Eldest Reborn
10%inclusion29 decks282 decks
8%synergy
Imprisoned in the Moon
10%inclusion28 decks282 decks
3%synergy
One with the Multiverse
10%inclusion27 decks282 decks
5%synergy
Court of Cunning
10%inclusion27 decks282 decks
9%synergy
Oubliette
10%inclusion27 decks282 decks
8%synergy
Teval's Judgment
9.1%inclusion21 decks232 decks
8%synergy
Planeswalkers
Teferi, Time Raveler
21%inclusion58 decks282 decks
12%synergy
Utility Lands
Hall of Heliod's Generosity
55%inclusion155 decks282 decks
42%synergy
Otawara, Soaring City
37%inclusion103 decks282 decks
17%synergy
Bojuka Bog
34%inclusion97 decks282 decks
7%synergy
Takenuma, Abandoned Mire
20%inclusion57 decks282 decks
14%synergy
Urza's Saga
18%inclusion51 decks282 decks
6%synergy
Serra's Sanctum
17%inclusion49 decks282 decks
16%synergy
Urborg, Tomb of Yawgmoth
14%inclusion39 decks282 decks
1%synergy
Reliquary Tower
13%inclusion38 decks282 decks
-20%synergy
Emergence Zone
13%inclusion37 decks282 decks
11%synergy
Cephalid Coliseum
13%inclusion36 decks282 decks
9%synergy
Halimar Depths
10%inclusion28 decks282 decks
5%synergy
Minamo, School at Water's Edge
6.4%inclusion18 decks282 decks
2%synergy
Eiganjo, Seat of the Empire
6.0%inclusion17 decks282 decks
1%synergy
Mana Artifacts
Sol Ring
94%inclusion264 decks282 decks
4%synergy
Arcane Signet
92%inclusion260 decks282 decks
4%synergy
Talisman of Dominance
55%inclusion155 decks282 decks
5%synergy
Talisman of Hierarchy
51%inclusion144 decks282 decks
7%synergy
Talisman of Progress
50%inclusion140 decks282 decks
6%synergy
Fellwar Stone
41%inclusion116 decks282 decks
8%synergy
Azorius Signet
36%inclusion102 decks282 decks
5%synergy
Orzhov Signet
33%inclusion93 decks282 decks
0%synergy
Lotus Petal
24%inclusion69 decks282 decks
14%synergy
Dimir Signet
23%inclusion66 decks282 decks
-8%synergy
Mana Vault
23%inclusion65 decks282 decks
14%synergy
Chrome Mox
20%inclusion55 decks282 decks
10%synergy
Mind Stone
12%inclusion35 decks282 decks
0%synergy
Mox Opal
12%inclusion34 decks282 decks
4%synergy
Mox Amber
11%inclusion31 decks282 decks
5%synergy
Mox Diamond
10%inclusion29 decks282 decks
3%synergy
Lion's Eye Diamond
8.9%inclusion25 decks282 decks
7%synergy
Commander's Sphere
7.8%inclusion22 decks282 decks
-10%synergy
Thought Vessel
7.1%inclusion20 decks282 decks
-18%synergy
Lands
Command Tower
94%inclusion266 decks282 decks
2%synergy
Island
91%inclusion257 decks282 decks
-2%synergy
Swamp
90%inclusion255 decks282 decks
-1%synergy
Plains
90%inclusion253 decks282 decks
-2%synergy
Hallowed Fountain
67%inclusion188 decks282 decks
17%synergy
Watery Grave
66%inclusion187 decks282 decks
16%synergy
Godless Shrine
65%inclusion182 decks282 decks
13%synergy
Flooded Strand
60%inclusion169 decks282 decks
22%synergy
Polluted Delta
59%inclusion165 decks282 decks
21%synergy
Marsh Flats
56%inclusion157 decks282 decks
20%synergy
Exotic Orchard
54%inclusion152 decks282 decks
-5%synergy
Raffine's Tower
49%inclusion139 decks282 decks
8%synergy
Caves of Koilos
48%inclusion135 decks282 decks
12%synergy
Underground River
47%inclusion132 decks282 decks
13%synergy
Adarkar Wastes
47%inclusion132 decks282 decks
15%synergy
Sea of Clouds
44%inclusion125 decks282 decks
9%synergy
Arcane Sanctum
43%inclusion122 decks282 decks
-11%synergy
Morphic Pool
42%inclusion118 decks282 decks
8%synergy
Undercity Sewers
41%inclusion115 decks282 decks
26%synergy
Vault of Champions
41%inclusion115 decks282 decks
8%synergy
Glacial Fortress
35%inclusion100 decks282 decks
-6%synergy
Shadowy Backstreet
35%inclusion99 decks282 decks
22%synergy
Meticulous Archive
35%inclusion98 decks282 decks
21%synergy
Isolated Chapel
30%inclusion85 decks282 decks
-10%synergy
City of Brass
26%inclusion73 decks282 decks
11%synergy
Tundra
25%inclusion71 decks282 decks
9%synergy
Underground Sea
24%inclusion69 decks282 decks
9%synergy
Scrubland
24%inclusion68 decks282 decks
8%synergy
Drowned Catacomb
23%inclusion66 decks282 decks
-14%synergy
Prairie Stream
23%inclusion65 decks282 decks
-18%synergy
Floodfarm Verge
23%inclusion65 decks282 decks
12%synergy
Azorius Chancery
22%inclusion63 decks282 decks
8%synergy
Tainted Isle
22%inclusion61 decks282 decks
15%synergy
Bloodstained Mire
22%inclusion61 decks282 decks
11%synergy
Gloomlake Verge
21%inclusion60 decks282 decks
10%synergy
Valgavoth's Lair
21%inclusion60 decks282 decks
19%synergy
Sunken Hollow
21%inclusion60 decks282 decks
-18%synergy
Dimir Aqueduct
21%inclusion59 decks282 decks
8%synergy
Tainted Field
20%inclusion56 decks282 decks
13%synergy
Orzhov Basilica
20%inclusion56 decks282 decks
5%synergy
Mana Confluence
20%inclusion56 decks282 decks
6%synergy
Temple of Deceit
20%inclusion55 decks282 decks
2%synergy
Temple of Silence
20%inclusion55 decks282 decks
1%synergy
Temple of Enlightenment
20%inclusion55 decks282 decks
3%synergy
Misty Rainforest
19%inclusion54 decks282 decks
8%synergy
Windswept Heath
19%inclusion54 decks282 decks
10%synergy
Verdant Catacombs
19%inclusion53 decks282 decks
9%synergy
Sink into Stupor
18%inclusion52 decks282 decks
6%synergy
Scalding Tarn
18%inclusion50 decks282 decks
7%synergy
Terramorphic Expanse
17%inclusion48 decks282 decks
1%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