The Master of Keys (Commander) - Optimized Stax

The Master of Keys
Rank #295
9decks
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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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Sorceries
Utility Artifacts
Enchantments
Planeswalkers
Utility Lands
Mana Artifacts
Lands
Back to Top
Gleaming Splendor
100%inclusion2 decks2 decks
92%synergy
The Queen of Dale
67%inclusion2 decks3 decks
63%synergy
The Wondrous Wasp
25%inclusion1 decks4 decks
25%synergy
Archnemesis
25%inclusion1 decks4 decks
24%synergy
High Synergy Cards
Ripples of Undeath
89%inclusion8 decks9 decks
86%synergy
Animate Dead
89%inclusion8 decks9 decks
79%synergy
Mystic Remora
89%inclusion8 decks9 decks
68%synergy
Dress Down
67%inclusion6 decks9 decks
65%synergy
Entomb
67%inclusion6 decks9 decks
60%synergy
Sevinne's Reclamation
67%inclusion6 decks9 decks
58%synergy
Blind Obedience
67%inclusion6 decks9 decks
55%synergy
Hall of Heliod's Generosity
67%inclusion6 decks9 decks
54%synergy
Overlord of the Balemurk
56%inclusion5 decks9 decks
54%synergy
Necromancy
56%inclusion5 decks9 decks
51%synergy
Top Cards
An Offer You Can't Refuse
56%inclusion5 decks9 decks
27%synergy
Inquisitive Glimmer
56%inclusion5 decks9 decks
49%synergy
Dark Ritual
56%inclusion5 decks9 decks
35%synergy
Starfield Mystic
56%inclusion5 decks9 decks
49%synergy
Amphibian Downpour
56%inclusion5 decks9 decks
51%synergy
Swords to Plowshares
56%inclusion5 decks9 decks
-12%synergy
Entity Tracker
56%inclusion5 decks9 decks
50%synergy
Ghostly Prison
56%inclusion5 decks9 decks
32%synergy
Mirrormade
56%inclusion5 decks9 decks
46%synergy
Mesmeric Orb
44%inclusion4 decks9 decks
43%synergy
Game Changers
Rhystic Study
100%inclusion9 decks9 decks
70%synergy
Smothering Tithe
89%inclusion8 decks9 decks
59%synergy
Demonic Tutor
67%inclusion6 decks9 decks
47%synergy
Enlightened Tutor
67%inclusion6 decks9 decks
48%synergy
Cyclonic Rift
67%inclusion6 decks9 decks
44%synergy
Vampiric Tutor
56%inclusion5 decks9 decks
39%synergy
Necropotence
44%inclusion4 decks9 decks
38%synergy
Fierce Guardianship
44%inclusion4 decks9 decks
24%synergy
Ancient Tomb
33%inclusion3 decks9 decks
21%synergy
Grand Arbiter Augustin IV
33%inclusion3 decks9 decks
28%synergy
Creatures
Fear of Impostors
44%inclusion4 decks9 decks
43%synergy
Zur, Eternal Schemer
44%inclusion4 decks9 decks
41%synergy
Lotho, Corrupt Shirriff
33%inclusion3 decks9 decks
16%synergy
Gravebreaker Lamia
33%inclusion3 decks9 decks
32%synergy
Overlord of the Floodpits
33%inclusion3 decks9 decks
30%synergy
Esper Sentinel
33%inclusion3 decks9 decks
6%synergy
Fear of Sleep Paralysis
33%inclusion3 decks9 decks
29%synergy
Heliod, the Radiant Dawn
33%inclusion3 decks9 decks
30%synergy
Grand Abolisher
33%inclusion3 decks9 decks
19%synergy
Abdel Adrian, Gorion's Ward
33%inclusion3 decks9 decks
32%synergy
Zur the Enchanter
33%inclusion3 decks9 decks
28%synergy
Orcish Bowmasters
33%inclusion3 decks9 decks
23%synergy
Dauthi Voidwalker
33%inclusion3 decks9 decks
28%synergy
Wan Shi Tong, Librarian
33%inclusion2 decks6 decks
29%synergy
Emet-Selch of the Third Seat
25%inclusion2 decks8 decks
16%synergy
Scrabbling Skullcrab
22%inclusion2 decks9 decks
21%synergy
Thassa's Oracle
22%inclusion2 decks9 decks
14%synergy
Opposition Agent
22%inclusion2 decks9 decks
14%synergy
Lurrus of the Dream-Den
22%inclusion2 decks9 decks
21%synergy
Hedron Crab
22%inclusion2 decks9 decks
22%synergy
Mesa Enchantress
22%inclusion2 decks9 decks
14%synergy
Victor, Valgavoth's Seneschal
22%inclusion2 decks9 decks
20%synergy
Doomwake Giant
22%inclusion2 decks9 decks
17%synergy
Grim Guardian
22%inclusion2 decks9 decks
20%synergy
Ledger Shredder
22%inclusion2 decks9 decks
14%synergy
Mai, Scornful Striker
17%inclusion1 decks6 decks
15%synergy
Voice of Victory
13%inclusion1 decks8 decks
4%synergy
Tataru Taru
13%inclusion1 decks8 decks
4%synergy
Solemn Simulacrum
11%inclusion1 decks9 decks
-1%synergy
Optimistic Scavenger
11%inclusion1 decks9 decks
11%synergy
Witch Enchanter
11%inclusion1 decks9 decks
4%synergy
Archivist of Oghma
11%inclusion1 decks9 decks
5%synergy
Claim Jumper
11%inclusion1 decks9 decks
10%synergy
Silent Arbiter
11%inclusion1 decks9 decks
10%synergy
Dark Confidant
11%inclusion1 decks9 decks
9%synergy
Delney, Streetwise Lookout
11%inclusion1 decks9 decks
3%synergy
Bruvac the Grandiloquent
11%inclusion1 decks9 decks
10%synergy
Snapcaster Mage
11%inclusion1 decks9 decks
9%synergy
Sheoldred, the Apocalypse
11%inclusion1 decks9 decks
2%synergy
Charismatic Conqueror
11%inclusion1 decks9 decks
9%synergy
Valley Floodcaller
11%inclusion1 decks9 decks
7%synergy
Archon of Sun's Grace
11%inclusion1 decks9 decks
7%synergy
Kambal, Consul of Allocation
11%inclusion1 decks9 decks
2%synergy
Demon of Fate's Design
11%inclusion1 decks9 decks
6%synergy
Kambal, Profiteering Mayor
11%inclusion1 decks9 decks
6%synergy
Sage of Mysteries
11%inclusion1 decks9 decks
11%synergy
Boggart Trawler
11%inclusion1 decks9 decks
8%synergy
The Reality Chip
11%inclusion1 decks9 decks
8%synergy
Drana and Linvala
11%inclusion1 decks9 decks
9%synergy
Grand Architect
11%inclusion1 decks9 decks
11%synergy
Instants
Silence
44%inclusion4 decks9 decks
34%synergy
Dovin's Veto
33%inclusion3 decks9 decks
7%synergy
Mana Drain
33%inclusion3 decks9 decks
16%synergy
Swan Song
33%inclusion3 decks9 decks
13%synergy
Fell the Profane
22%inclusion2 decks9 decks
13%synergy
Void Rend
22%inclusion2 decks9 decks
-13%synergy
Strix Serenade
22%inclusion2 decks9 decks
19%synergy
Flusterstorm
22%inclusion2 decks9 decks
14%synergy
Force of Will
22%inclusion2 decks9 decks
10%synergy
Arcane Denial
22%inclusion2 decks9 decks
2%synergy
Counterspell
22%inclusion2 decks9 decks
-20%synergy
Inkshield
22%inclusion2 decks9 decks
12%synergy
Mystical Tutor
22%inclusion2 decks9 decks
12%synergy
Sacrifice
11%inclusion1 decks9 decks
10%synergy
Muddle the Mixture
11%inclusion1 decks9 decks
8%synergy
Tainted Pact
11%inclusion1 decks9 decks
5%synergy
Orim's Chant
11%inclusion1 decks9 decks
9%synergy
Retraction Helix
11%inclusion1 decks9 decks
10%synergy
Return to Dust
11%inclusion1 decks9 decks
8%synergy
Brainstorm
11%inclusion1 decks9 decks
-6%synergy
Lim-Dûl's Vault
11%inclusion1 decks9 decks
8%synergy
Aetherspouts
11%inclusion1 decks9 decks
11%synergy
Mindbreak Trap
11%inclusion1 decks9 decks
5%synergy
Gifts Ungiven
11%inclusion1 decks9 decks
8%synergy
Cabal Ritual
11%inclusion1 decks9 decks
8%synergy
Razorgrass Ambush
11%inclusion1 decks9 decks
10%synergy
Culling the Weak
11%inclusion1 decks9 decks
9%synergy
Darkblast
11%inclusion1 decks9 decks
11%synergy
Angel's Grace
11%inclusion1 decks9 decks
8%synergy
Into the Flood Maw
11%inclusion1 decks9 decks
7%synergy
Prismatic Strands
11%inclusion1 decks9 decks
11%synergy
Ad Nauseam
11%inclusion1 decks9 decks
9%synergy
Demonic Consultation
11%inclusion1 decks9 decks
4%synergy
Force of Negation
11%inclusion1 decks9 decks
-1%synergy
Snap
11%inclusion1 decks9 decks
9%synergy
Anguished Unmaking
11%inclusion1 decks9 decks
-15%synergy
Get Out
11%inclusion1 decks9 decks
11%synergy
Sink into Stupor
11%inclusion1 decks9 decks
-2%synergy
Visions of Beyond
11%inclusion1 decks9 decks
11%synergy
Utter End
11%inclusion1 decks9 decks
5%synergy
Borne Upon a Wind
11%inclusion1 decks9 decks
6%synergy
Path to Exile
11%inclusion1 decks9 decks
-31%synergy
Dramatic Reversal
11%inclusion1 decks9 decks
9%synergy
Long River's Pull
11%inclusion1 decks9 decks
10%synergy
Pact of Negation
11%inclusion1 decks9 decks
4%synergy
Sorceries
Reanimate
33%inclusion3 decks9 decks
17%synergy
Demonic Counsel
22%inclusion2 decks9 decks
21%synergy
Extinguish All Hope
22%inclusion2 decks9 decks
21%synergy
Dance of the Manse
22%inclusion2 decks9 decks
19%synergy
Resentful Revelation
14%inclusion1 decks7 decks
14%synergy
Singularity Rupture
14%inclusion1 decks7 decks
12%synergy
Ponder
11%inclusion1 decks9 decks
2%synergy
Flood of Recollection
11%inclusion1 decks9 decks
11%synergy
Commune with Evil
11%inclusion1 decks9 decks
11%synergy
Diabolic Intent
11%inclusion1 decks9 decks
6%synergy
Windfall
11%inclusion1 decks9 decks
-2%synergy
Lively Dirge
11%inclusion1 decks9 decks
10%synergy
Unmarked Grave
11%inclusion1 decks9 decks
10%synergy
Diabolic Tutor
11%inclusion1 decks9 decks
6%synergy
Divine Reckoning
11%inclusion1 decks9 decks
10%synergy
Imperial Seal
11%inclusion1 decks9 decks
4%synergy
Yawgmoth's Will
11%inclusion1 decks9 decks
10%synergy
Time Wipe
11%inclusion1 decks9 decks
5%synergy
Unearth
11%inclusion1 decks9 decks
9%synergy
Farewell
11%inclusion1 decks9 decks
-1%synergy
Kirtar's Wrath
11%inclusion1 decks9 decks
11%synergy
Glimpse the Unthinkable
11%inclusion1 decks9 decks
11%synergy
Idyllic Tutor
11%inclusion1 decks9 decks
7%synergy
Contingency Plan
11%inclusion1 decks9 decks
11%synergy
Decree of Pain
11%inclusion1 decks9 decks
10%synergy
Rite of Oblivion
11%inclusion1 decks9 decks
10%synergy
Council's Judgment
11%inclusion1 decks9 decks
9%synergy
Toxic Deluge
11%inclusion1 decks9 decks
-9%synergy
Tezzeret's Gambit
11%inclusion1 decks9 decks
11%synergy
Fractured Sanity
11%inclusion1 decks9 decks
10%synergy
Taigam's Scheming
11%inclusion1 decks9 decks
11%synergy
Maddening Cacophony
11%inclusion1 decks9 decks
10%synergy
Redress Fate
11%inclusion1 decks9 decks
6%synergy
Utility Artifacts
The Darkness Crystal
13%inclusion1 decks8 decks
10%synergy
Sensei's Divining Top
11%inclusion1 decks9 decks
2%synergy
Unwinding Clock
11%inclusion1 decks9 decks
7%synergy
Bolas's Citadel
11%inclusion1 decks9 decks
2%synergy
The One Ring
11%inclusion1 decks9 decks
-1%synergy
Ashnod's Altar
11%inclusion1 decks9 decks
5%synergy
Skullclamp
11%inclusion1 decks9 decks
3%synergy
Wishclaw Talisman
11%inclusion1 decks9 decks
4%synergy
Surveyor's Scope
11%inclusion1 decks9 decks
11%synergy
Altar of the Brood
11%inclusion1 decks9 decks
10%synergy
Mindcrank
11%inclusion1 decks9 decks
9%synergy
Isochron Scepter
11%inclusion1 decks9 decks
9%synergy
Smokestack
11%inclusion1 decks9 decks
11%synergy
Enchantments
The Meathook Massacre
44%inclusion4 decks9 decks
41%synergy
Dance of the Dead
44%inclusion4 decks9 decks
42%synergy
Grasp of Fate
44%inclusion4 decks9 decks
38%synergy
Authority of the Consuls
44%inclusion4 decks9 decks
30%synergy
Sphere of Safety
44%inclusion4 decks9 decks
35%synergy
Seal of Cleansing
44%inclusion4 decks9 decks
43%synergy
Greater Auramancy
44%inclusion4 decks9 decks
40%synergy
Aura of Silence
44%inclusion4 decks9 decks
41%synergy
Propaganda
44%inclusion4 decks9 decks
15%synergy
Imprisoned in the Moon
33%inclusion3 decks9 decks
27%synergy
Sigil of the Empty Throne
33%inclusion3 decks9 decks
28%synergy
Cemetery Tampering
33%inclusion3 decks9 decks
33%synergy
Sheltered by Ghosts
33%inclusion3 decks9 decks
31%synergy
Black Market Connections
33%inclusion3 decks9 decks
18%synergy
Seal of Removal
33%inclusion3 decks9 decks
33%synergy
Standstill
33%inclusion3 decks9 decks
33%synergy
Mornsong Aria
25%inclusion1 decks4 decks
24%synergy
Primary Research
25%inclusion1 decks4 decks
25%synergy
Darksteel Mutation
22%inclusion2 decks9 decks
16%synergy
Counterbalance
22%inclusion2 decks9 decks
21%synergy
Stony Silence
22%inclusion2 decks9 decks
22%synergy
Tinybones Joins Up
22%inclusion2 decks9 decks
21%synergy
Touch the Spirit Realm
22%inclusion2 decks9 decks
20%synergy
Energy Flux
22%inclusion2 decks9 decks
22%synergy
Leyline of Anticipation
22%inclusion2 decks9 decks
18%synergy
Stasis
22%inclusion2 decks9 decks
21%synergy
Restricted Office // Lecture Hall
22%inclusion2 decks9 decks
20%synergy
Secret Arcade // Dusty Parlor
22%inclusion2 decks9 decks
18%synergy
Land Tax
22%inclusion2 decks9 decks
16%synergy
Ethereal Armor
22%inclusion2 decks9 decks
18%synergy
Ossification
22%inclusion2 decks9 decks
22%synergy
Chakra Meditation
17%inclusion1 decks6 decks
17%synergy
Parker Luck
14%inclusion1 decks7 decks
14%synergy
Stillness in Motion
13%inclusion1 decks8 decks
12%synergy
One with the Multiverse
11%inclusion1 decks9 decks
7%synergy
Founding the Third Path
11%inclusion1 decks9 decks
11%synergy
Smuggler's Share
11%inclusion1 decks9 decks
9%synergy
Cacophony Unleashed
11%inclusion1 decks9 decks
9%synergy
Trapped in the Screen
11%inclusion1 decks9 decks
11%synergy
Metamorphic Alteration
11%inclusion1 decks9 decks
11%synergy
Court of Cunning
11%inclusion1 decks9 decks
10%synergy
Lunar Force
11%inclusion1 decks9 decks
11%synergy
Psychic Corrosion
11%inclusion1 decks9 decks
10%synergy
Extravagant Replication
11%inclusion1 decks9 decks
6%synergy
The Eldest Reborn
11%inclusion1 decks9 decks
9%synergy
Chronic Flooding
11%inclusion1 decks9 decks
11%synergy
Grievous Wound
11%inclusion1 decks9 decks
10%synergy
Collective Restraint
11%inclusion1 decks9 decks
11%synergy
Soul Snare
11%inclusion1 decks9 decks
11%synergy
Rule of Law
11%inclusion1 decks9 decks
9%synergy
Planeswalkers
Teferi, Time Raveler
22%inclusion2 decks9 decks
14%synergy
Ashiok, Dream Render
11%inclusion1 decks9 decks
10%synergy
Utility Lands
Bojuka Bog
56%inclusion5 decks9 decks
29%synergy
Otawara, Soaring City
56%inclusion5 decks9 decks
36%synergy
Takenuma, Abandoned Mire
33%inclusion3 decks9 decks
27%synergy
Urza's Saga
22%inclusion2 decks9 decks
11%synergy
Emergence Zone
22%inclusion2 decks9 decks
20%synergy
Cephalid Coliseum
22%inclusion2 decks9 decks
19%synergy
Rogue's Passage
22%inclusion2 decks9 decks
12%synergy
Adagia, Windswept Bastion
14%inclusion1 decks7 decks
12%synergy
Ishgard, the Holy See
13%inclusion1 decks8 decks
9%synergy
Vault of Whispers
11%inclusion1 decks9 decks
3%synergy
Wasteland
11%inclusion1 decks9 decks
10%synergy
Phyrexian Tower
11%inclusion1 decks9 decks
8%synergy
Mortuary Mire
11%inclusion1 decks9 decks
9%synergy
Echoing Deeps
11%inclusion1 decks9 decks
11%synergy
Serra's Sanctum
11%inclusion1 decks9 decks
9%synergy
Halimar Depths
11%inclusion1 decks9 decks
7%synergy
Volrath's Stronghold
11%inclusion1 decks9 decks
10%synergy
Command Beacon
11%inclusion1 decks9 decks
8%synergy
Eiganjo, Seat of the Empire
11%inclusion1 decks9 decks
6%synergy
Reliquary Tower
11%inclusion1 decks9 decks
-23%synergy
Dakmor Salvage
11%inclusion1 decks9 decks
11%synergy
Temple of the False God
11%inclusion1 decks9 decks
3%synergy
Urborg, Tomb of Yawgmoth
11%inclusion1 decks9 decks
-2%synergy
Mana Artifacts
Sol Ring
100%inclusion9 decks9 decks
10%synergy
Arcane Signet
56%inclusion5 decks9 decks
-32%synergy
Talisman of Progress
44%inclusion4 decks9 decks
-0%synergy
Lotus Petal
33%inclusion3 decks9 decks
23%synergy
Talisman of Dominance
33%inclusion3 decks9 decks
-17%synergy
Mana Vault
33%inclusion3 decks9 decks
25%synergy
Fellwar Stone
33%inclusion3 decks9 decks
0%synergy
Talisman of Hierarchy
33%inclusion3 decks9 decks
-12%synergy
Chrome Mox
33%inclusion3 decks9 decks
24%synergy
Mox Amber
22%inclusion2 decks9 decks
16%synergy
Replicating Ring
11%inclusion1 decks9 decks
10%synergy
Hourglass of the Lost
11%inclusion1 decks9 decks
11%synergy
Mind Stone
11%inclusion1 decks9 decks
-0%synergy
Mox Opal
11%inclusion1 decks9 decks
3%synergy
Lands
Swamp
100%inclusion9 decks9 decks
8%synergy
Island
100%inclusion9 decks9 decks
7%synergy
Plains
100%inclusion9 decks9 decks
8%synergy
Command Tower
89%inclusion8 decks9 decks
-4%synergy
Hallowed Fountain
89%inclusion8 decks9 decks
37%synergy
Godless Shrine
78%inclusion7 decks9 decks
26%synergy
Marsh Flats
78%inclusion7 decks9 decks
42%synergy
Polluted Delta
78%inclusion7 decks9 decks
39%synergy
Flooded Strand
78%inclusion7 decks9 decks
39%synergy
Watery Grave
78%inclusion7 decks9 decks
26%synergy
Undercity Sewers
56%inclusion5 decks9 decks
41%synergy
Shadowy Backstreet
56%inclusion5 decks9 decks
43%synergy
Exotic Orchard
56%inclusion5 decks9 decks
-4%synergy
Caves of Koilos
56%inclusion5 decks9 decks
20%synergy
Raffine's Tower
56%inclusion5 decks9 decks
15%synergy
Underground River
44%inclusion4 decks9 decks
9%synergy
Meticulous Archive
44%inclusion4 decks9 decks
30%synergy
Adarkar Wastes
44%inclusion4 decks9 decks
11%synergy
Glacial Fortress
33%inclusion3 decks9 decks
-11%synergy
Tainted Field
33%inclusion3 decks9 decks
27%synergy
Valgavoth's Lair
33%inclusion3 decks9 decks
31%synergy
Sea of Clouds
33%inclusion3 decks9 decks
-1%synergy
Arcane Sanctum
33%inclusion3 decks9 decks
-20%synergy
Drowned Catacomb
33%inclusion3 decks9 decks
-6%synergy
Morphic Pool
33%inclusion3 decks9 decks
-0%synergy
Arid Mesa
33%inclusion3 decks9 decks
24%synergy
Mana Confluence
33%inclusion3 decks9 decks
19%synergy
Gloomlake Verge
33%inclusion3 decks9 decks
22%synergy
Vault of Champions
33%inclusion3 decks9 decks
1%synergy
City of Brass
33%inclusion3 decks9 decks
18%synergy
Starting Town
25%inclusion2 decks8 decks
21%synergy
Turbulent Moor
25%inclusion1 decks4 decks
22%synergy
Umbral Expanse
25%inclusion1 decks4 decks
24%synergy
Tainted Isle
22%inclusion2 decks9 decks
16%synergy
Fell the Profane
22%inclusion2 decks9 decks
13%synergy
Misty Rainforest
22%inclusion2 decks9 decks
12%synergy
Azorius Chancery
22%inclusion2 decks9 decks
9%synergy
Windswept Heath
22%inclusion2 decks9 decks
13%synergy
Bleachbone Verge
22%inclusion2 decks9 decks
14%synergy
Dimir Aqueduct
22%inclusion2 decks9 decks
10%synergy
Verdant Catacombs
22%inclusion2 decks9 decks
13%synergy
Reflecting Pool
22%inclusion2 decks9 decks
14%synergy
Isolated Chapel
22%inclusion2 decks9 decks
-21%synergy
Orzhov Basilica
22%inclusion2 decks9 decks
8%synergy
Floodfarm Verge
22%inclusion2 decks9 decks
11%synergy
Silent Clearing
22%inclusion2 decks9 decks
20%synergy
Tundra
11%inclusion1 decks9 decks
-5%synergy
Prismatic Vista
11%inclusion1 decks9 decks
7%synergy
Witch Enchanter
11%inclusion1 decks9 decks
4%synergy
Fabled Passage
11%inclusion1 decks9 decks
3%synergy
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