The Master of Keys (Commander) - Core Reanimator

Background image for What if Thassa's Oracle Were Banned?
Harvey McGuinness
Sep 23, 2025
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
Noggle the Mind
33%inclusion2 decks6 decks
33%synergy
High Synergy Cards
Inquisitive Glimmer
78%inclusion21 decks27 decks
70%synergy
Entity Tracker
70%inclusion19 decks27 decks
64%synergy
Fear of Impostors
63%inclusion17 decks27 decks
61%synergy
Mesa Enchantress
70%inclusion19 decks27 decks
61%synergy
Starfield Mystic
67%inclusion18 decks27 decks
60%synergy
Scrabbling Skullcrab
59%inclusion16 decks27 decks
58%synergy
Seal of Cleansing
59%inclusion16 decks27 decks
58%synergy
Ripples of Undeath
59%inclusion16 decks27 decks
57%synergy
Doomwake Giant
59%inclusion16 decks27 decks
53%synergy
Dress Down
56%inclusion15 decks27 decks
53%synergy
Top Cards
Demon of Fate's Design
56%inclusion15 decks27 decks
50%synergy
Fear of Sleep Paralysis
56%inclusion15 decks27 decks
50%synergy
Overlord of the Floodpits
52%inclusion14 decks27 decks
48%synergy
Gravebreaker Lamia
52%inclusion14 decks27 decks
51%synergy
Cemetery Tampering
52%inclusion14 decks27 decks
51%synergy
Grasp of Fate
48%inclusion13 decks27 decks
42%synergy
Sevinne's Reclamation
48%inclusion13 decks27 decks
39%synergy
Necromancy
48%inclusion13 decks27 decks
44%synergy
Animate Dead
48%inclusion13 decks27 decks
38%synergy
Secret Arcade // Dusty Parlor
44%inclusion12 decks27 decks
40%synergy
Creatures
Overlord of the Balemurk
41%inclusion11 decks27 decks
39%synergy
Heliod, the Radiant Dawn
41%inclusion11 decks27 decks
37%synergy
Silent Hallcreeper
41%inclusion11 decks27 decks
36%synergy
Zur, Eternal Schemer
41%inclusion11 decks27 decks
38%synergy
Victor, Valgavoth's Seneschal
37%inclusion10 decks27 decks
35%synergy
Ondu Spiritdancer
37%inclusion10 decks27 decks
31%synergy
Soaring Lightbringer
30%inclusion8 decks27 decks
25%synergy
Athreos, Shroud-Veiled
30%inclusion8 decks27 decks
25%synergy
Enduring Curiosity
30%inclusion8 decks27 decks
22%synergy
Aminatou, Veil Piercer
30%inclusion8 decks27 decks
28%synergy
Alseid of Life's Bounty
26%inclusion7 decks27 decks
24%synergy
Archetype of Imagination
26%inclusion7 decks27 decks
21%synergy
Grim Guardian
26%inclusion7 decks27 decks
23%synergy
Spirited Companion
22%inclusion6 decks27 decks
20%synergy
Overlord of the Mistmoors
22%inclusion6 decks27 decks
20%synergy
Ancient Cellarspawn
22%inclusion6 decks27 decks
19%synergy
Sage of Mysteries
19%inclusion5 decks27 decks
18%synergy
Mindwrack Harpy
19%inclusion5 decks27 decks
18%synergy
Summon: Yojimbo
18%inclusion4 decks22 decks
17%synergy
Starnheim Courser
15%inclusion4 decks27 decks
11%synergy
Fear of Surveillance
15%inclusion4 decks27 decks
15%synergy
Ashiok's Reaper
15%inclusion4 decks27 decks
14%synergy
Archon of Sun's Grace
15%inclusion4 decks27 decks
10%synergy
Skullsnap Nuisance
15%inclusion4 decks27 decks
14%synergy
Ghostly Dancers
15%inclusion4 decks27 decks
12%synergy
Stitcher's Supplier
15%inclusion4 decks27 decks
14%synergy
Moon-Blessed Cleric
15%inclusion4 decks27 decks
10%synergy
Appendage Amalgam
15%inclusion4 decks27 decks
15%synergy
Nashi, Searcher in the Dark
15%inclusion4 decks27 decks
14%synergy
Solemn Simulacrum
11%inclusion3 decks27 decks
-4%synergy
Metamorphosis Fanatic
11%inclusion3 decks27 decks
6%synergy
Syr Konrad, the Grim
11%inclusion3 decks27 decks
5%synergy
Agent of Erebos
11%inclusion3 decks27 decks
11%synergy
Arvinox, the Mind Flail
11%inclusion3 decks27 decks
9%synergy
Creeping Peeper
11%inclusion3 decks27 decks
11%synergy
Zur the Enchanter
11%inclusion3 decks27 decks
6%synergy
Braids, Arisen Nightmare
11%inclusion3 decks27 decks
10%synergy
Fear of the Dark
11%inclusion3 decks27 decks
11%synergy
Deranged Assistant
11%inclusion3 decks27 decks
11%synergy
Balemurk Leech
11%inclusion3 decks27 decks
10%synergy
Nightmare Shepherd
11%inclusion3 decks27 decks
9%synergy
Auramancer
11%inclusion3 decks27 decks
8%synergy
Millikin
11%inclusion3 decks27 decks
11%synergy
Callaphe, Beloved of the Sea
11%inclusion3 decks27 decks
10%synergy
Summon: Valefor
9.1%inclusion2 decks22 decks
9%synergy
Summon: Anima
9.1%inclusion2 decks22 decks
9%synergy
Eidolon of Astral Winds
8.0%inclusion2 decks25 decks
8%synergy
Phenax, God of Deception
7.4%inclusion2 decks27 decks
7%synergy
Lotho, Corrupt Shirriff
7.4%inclusion2 decks27 decks
-10%synergy
Mulldrifter
7.4%inclusion2 decks27 decks
3%synergy
Instants
Swords to Plowshares
41%inclusion11 decks27 decks
-28%synergy
Thirst for Meaning
33%inclusion9 decks27 decks
32%synergy
Path to Exile
26%inclusion7 decks27 decks
-16%synergy
Counterspell
26%inclusion7 decks27 decks
-15%synergy
Otherworldly Gaze
22%inclusion6 decks27 decks
20%synergy
Arcane Denial
22%inclusion6 decks27 decks
2%synergy
Frantic Search
19%inclusion5 decks27 decks
1%synergy
Inkshield
19%inclusion5 decks27 decks
9%synergy
Fell the Profane
15%inclusion4 decks27 decks
6%synergy
Brainstorm
15%inclusion4 decks27 decks
-2%synergy
An Offer You Can't Refuse
11%inclusion3 decks27 decks
-16%synergy
Entomb
11%inclusion3 decks27 decks
4%synergy
Swan Song
11%inclusion3 decks27 decks
-9%synergy
Dark Ritual
11%inclusion3 decks27 decks
-8%synergy
Sink into Stupor
11%inclusion3 decks27 decks
-2%synergy
Generous Gift
11%inclusion3 decks27 decks
-4%synergy
Anguished Unmaking
11%inclusion3 decks27 decks
-14%synergy
Swallowed by Leviathan
11%inclusion2 decks19 decks
10%synergy
Dreams of Laguna
9.1%inclusion2 decks22 decks
9%synergy
Refute
8.0%inclusion2 decks25 decks
5%synergy
Return to Dust
7.4%inclusion2 decks27 decks
4%synergy
Negate
7.4%inclusion2 decks27 decks
-9%synergy
Void Rend
7.4%inclusion2 decks27 decks
-27%synergy
Fact or Fiction
7.4%inclusion2 decks27 decks
4%synergy
Faithful Mending
7.4%inclusion2 decks27 decks
4%synergy
Utter End
7.4%inclusion2 decks27 decks
1%synergy
Sejiri Shelter
7.4%inclusion2 decks27 decks
6%synergy
Live or Die
7.4%inclusion2 decks27 decks
7%synergy
Waterlogged Teachings
7.4%inclusion2 decks27 decks
3%synergy
Withering Torment
7.4%inclusion2 decks27 decks
6%synergy
Consult the Star Charts
5.9%inclusion1 decks17 decks
5%synergy
Sorceries
Redress Fate
26%inclusion7 decks27 decks
20%synergy
Dance of the Manse
26%inclusion7 decks27 decks
22%synergy
Reanimate
22%inclusion6 decks27 decks
6%synergy
Extinguish All Hope
22%inclusion6 decks27 decks
21%synergy
Resurgent Belief
19%inclusion5 decks27 decks
16%synergy
Time Wipe
19%inclusion5 decks27 decks
12%synergy
Singularity Rupture
18%inclusion3 decks17 decks
15%synergy
Space-Time Anomaly
18%inclusion3 decks17 decks
16%synergy
Windfall
15%inclusion4 decks27 decks
1%synergy
Glimpse the Unthinkable
15%inclusion4 decks27 decks
14%synergy
Demonic Counsel
15%inclusion4 decks27 decks
14%synergy
Ponder
11%inclusion3 decks27 decks
2%synergy
Commune with Evil
11%inclusion3 decks27 decks
11%synergy
Replenish
11%inclusion3 decks27 decks
9%synergy
Toxic Deluge
11%inclusion3 decks27 decks
-9%synergy
Damn
11%inclusion3 decks27 decks
-9%synergy
Final Vengeance
11%inclusion3 decks27 decks
11%synergy
Stock Up
8.0%inclusion2 decks25 decks
6%synergy
Austere Command
7.4%inclusion2 decks27 decks
-2%synergy
Cut Your Losses
7.4%inclusion2 decks27 decks
7%synergy
Feed the Swarm
7.4%inclusion2 decks27 decks
5%synergy
Living Death
7.4%inclusion2 decks27 decks
3%synergy
Treasure Cruise
7.4%inclusion2 decks27 decks
4%synergy
Brilliant Restoration
7.4%inclusion2 decks27 decks
5%synergy
Utility Artifacts
Archaeomancer's Map
15%inclusion4 decks27 decks
10%synergy
Whip of Erebos
11%inclusion3 decks27 decks
9%synergy
Keys to the House
11%inclusion3 decks27 decks
11%synergy
Mesmeric Orb
7.4%inclusion2 decks27 decks
6%synergy
Perpetual Timepiece
7.4%inclusion2 decks27 decks
7%synergy
Wayfarer's Bauble
7.4%inclusion2 decks27 decks
-1%synergy
Lightning Greaves
7.4%inclusion2 decks27 decks
-15%synergy
Claws of Gix
7.4%inclusion2 decks27 decks
7%synergy
Rescue Skiff
5.9%inclusion1 decks17 decks
6%synergy
Enchantments
Cacophony Unleashed
41%inclusion11 decks27 decks
39%synergy
Polluted Cistern // Dim Oubliette
41%inclusion11 decks27 decks
40%synergy
Sigil of the Empty Throne
37%inclusion10 decks27 decks
31%synergy
Mirrormade
37%inclusion10 decks27 decks
27%synergy
Estrid's Invocation
37%inclusion10 decks27 decks
32%synergy
Amphibian Downpour
37%inclusion10 decks27 decks
32%synergy
Monologue Tax
33%inclusion9 decks27 decks
27%synergy
Starfield of Nyx
33%inclusion9 decks27 decks
29%synergy
Sphere of Safety
33%inclusion9 decks27 decks
24%synergy
Defiled Crypt // Cadaver Lab
33%inclusion9 decks27 decks
33%synergy
Teval's Judgment
30%inclusion7 decks23 decks
30%synergy
Stillness in Motion
30%inclusion7 decks23 decks
30%synergy
The Tale of Tamiyo
30%inclusion8 decks27 decks
29%synergy
Mirror Room // Fractured Realm
30%inclusion8 decks27 decks
27%synergy
Propaganda
30%inclusion8 decks27 decks
3%synergy
Mystic Remora
26%inclusion7 decks27 decks
5%synergy
Shark Typhoon
26%inclusion7 decks27 decks
20%synergy
Out of the Tombs
22%inclusion6 decks27 decks
22%synergy
Central Elevator // Promising Stairs
22%inclusion6 decks27 decks
22%synergy
Ghostly Prison
22%inclusion6 decks27 decks
0%synergy
Timely Ward
22%inclusion6 decks27 decks
17%synergy
Derelict Attic // Widow's Walk
22%inclusion6 decks27 decks
22%synergy
Secrets of the Dead
22%inclusion6 decks27 decks
22%synergy
Nowhere to Run
22%inclusion6 decks27 decks
21%synergy
Seal of Removal
22%inclusion6 decks27 decks
22%synergy
The Meathook Massacre
19%inclusion5 decks27 decks
15%synergy
Dance of the Dead
19%inclusion5 decks27 decks
16%synergy
Imprisoned in the Moon
19%inclusion5 decks27 decks
12%synergy
The Eldest Reborn
19%inclusion5 decks27 decks
16%synergy
Hallowed Haunting
19%inclusion5 decks27 decks
16%synergy
Sheltered by Ghosts
19%inclusion5 decks27 decks
16%synergy
Ethereal Armor
19%inclusion5 decks27 decks
14%synergy
Cramped Vents // Access Maze
15%inclusion4 decks27 decks
12%synergy
Touch the Spirit Realm
15%inclusion4 decks27 decks
12%synergy
Underwater Tunnel // Slimy Aquarium
15%inclusion4 decks27 decks
14%synergy
Chronic Flooding
15%inclusion4 decks27 decks
15%synergy
Funeral Room // Awakening Hall
15%inclusion4 decks27 decks
14%synergy
Blind Obedience
15%inclusion4 decks27 decks
3%synergy
Restricted Office // Lecture Hall
15%inclusion4 decks27 decks
13%synergy
Bottomless Pool // Locker Room
15%inclusion4 decks27 decks
13%synergy
Court of Ardenvale
15%inclusion4 decks27 decks
14%synergy
Surgical Suite // Hospital Room
15%inclusion4 decks27 decks
14%synergy
Oubliette
15%inclusion4 decks27 decks
13%synergy
Seal of Doom
15%inclusion4 decks27 decks
15%synergy
Spirit-Sister's Call
15%inclusion4 decks27 decks
14%synergy
Copy Enchantment
15%inclusion4 decks27 decks
10%synergy
Meat Locker // Drowned Diner
15%inclusion4 decks27 decks
14%synergy
The Restoration of Eiganjo
15%inclusion4 decks27 decks
14%synergy
Static Prison
15%inclusion4 decks27 decks
14%synergy
Unholy Annex // Ritual Chamber
15%inclusion4 decks27 decks
14%synergy
Battles
Invasion of Theros
11%inclusion3 decks27 decks
9%synergy
Utility Lands
Bojuka Bog
59%inclusion16 decks27 decks
32%synergy
Hall of Heliod's Generosity
52%inclusion14 decks27 decks
39%synergy
Takenuma, Abandoned Mire
30%inclusion8 decks27 decks
23%synergy
Halimar Depths
22%inclusion6 decks27 decks
17%synergy
Otawara, Soaring City
22%inclusion6 decks27 decks
3%synergy
Cephalid Coliseum
22%inclusion6 decks27 decks
19%synergy
Reliquary Tower
15%inclusion4 decks27 decks
-19%synergy
Urborg, Tomb of Yawgmoth
15%inclusion4 decks27 decks
2%synergy
Nephalia Drownyard
7.4%inclusion2 decks27 decks
7%synergy
Temple of the False God
7.4%inclusion2 decks27 decks
0%synergy
Drownyard Temple
7.4%inclusion2 decks27 decks
7%synergy
Adagia, Windswept Bastion
5.9%inclusion1 decks17 decks
3%synergy
Mana Artifacts
Arcane Signet
78%inclusion21 decks27 decks
-10%synergy
Sol Ring
63%inclusion17 decks27 decks
-27%synergy
Azorius Signet
41%inclusion11 decks27 decks
9%synergy
Talisman of Dominance
37%inclusion10 decks27 decks
-12%synergy
Talisman of Progress
33%inclusion9 decks27 decks
-10%synergy
Dimir Signet
33%inclusion9 decks27 decks
1%synergy
Talisman of Hierarchy
33%inclusion9 decks27 decks
-10%synergy
Orzhov Signet
33%inclusion9 decks27 decks
0%synergy
Fellwar Stone
26%inclusion7 decks27 decks
-8%synergy
Commander's Sphere
19%inclusion5 decks27 decks
0%synergy
Mind Stone
15%inclusion4 decks27 decks
2%synergy
Bender's Waterskin
5.9%inclusion1 decks17 decks
2%synergy
Lands
Command Tower
96%inclusion26 decks27 decks
4%synergy
Plains
96%inclusion26 decks27 decks
5%synergy
Swamp
93%inclusion25 decks27 decks
1%synergy
Island
93%inclusion25 decks27 decks
0%synergy
Exotic Orchard
67%inclusion18 decks27 decks
8%synergy
Arcane Sanctum
59%inclusion16 decks27 decks
5%synergy
Caves of Koilos
56%inclusion15 decks27 decks
20%synergy
Underground River
52%inclusion14 decks27 decks
19%synergy
Adarkar Wastes
52%inclusion14 decks27 decks
21%synergy
Glacial Fortress
44%inclusion12 decks27 decks
4%synergy
Isolated Chapel
44%inclusion12 decks27 decks
5%synergy
Drowned Catacomb
44%inclusion12 decks27 decks
8%synergy
Evolving Wilds
41%inclusion11 decks27 decks
16%synergy
Prairie Stream
37%inclusion10 decks27 decks
-4%synergy
Hallowed Fountain
37%inclusion10 decks27 decks
-12%synergy
Watery Grave
37%inclusion10 decks27 decks
-13%synergy
Valgavoth's Lair
33%inclusion9 decks27 decks
31%synergy
Godless Shrine
33%inclusion9 decks27 decks
-17%synergy
Temple of Silence
33%inclusion9 decks27 decks
14%synergy
Undercity Sewers
30%inclusion8 decks27 decks
15%synergy
Contaminated Landscape
30%inclusion8 decks27 decks
15%synergy
Temple of Deceit
30%inclusion8 decks27 decks
12%synergy
Terramorphic Expanse
30%inclusion8 decks27 decks
13%synergy
Sunken Hollow
30%inclusion8 decks27 decks
-10%synergy
Morphic Pool
30%inclusion8 decks27 decks
-5%synergy
Meticulous Archive
30%inclusion8 decks27 decks
16%synergy
Flooded Strand
30%inclusion8 decks27 decks
-8%synergy
Dimir Aqueduct
26%inclusion7 decks27 decks
12%synergy
Raffine's Tower
26%inclusion7 decks27 decks
-15%synergy
Tainted Field
26%inclusion7 decks27 decks
19%synergy
Darkwater Catacombs
26%inclusion7 decks27 decks
11%synergy
Obscura Storefront
26%inclusion7 decks27 decks
16%synergy
Polluted Delta
26%inclusion7 decks27 decks
-12%synergy
Temple of Enlightenment
26%inclusion7 decks27 decks
9%synergy
Marsh Flats
26%inclusion7 decks27 decks
-10%synergy
Deserted Beach
26%inclusion7 decks27 decks
5%synergy
Tainted Isle
22%inclusion6 decks27 decks
16%synergy
Azorius Chancery
22%inclusion6 decks27 decks
8%synergy
Shadowy Backstreet
22%inclusion6 decks27 decks
10%synergy
Sea of Clouds
22%inclusion6 decks27 decks
-13%synergy
Skycloud Expanse
22%inclusion6 decks27 decks
7%synergy
Orzhov Basilica
22%inclusion6 decks27 decks
7%synergy
Vault of Champions
22%inclusion6 decks27 decks
-10%synergy
Floodfarm Verge
22%inclusion6 decks27 decks
11%synergy
Tundra
19%inclusion5 decks27 decks
3%synergy
Underground Sea
19%inclusion5 decks27 decks
3%synergy
Shipwreck Marsh
19%inclusion5 decks27 decks
-2%synergy
Gloomlake Verge
19%inclusion5 decks27 decks
7%synergy
Scrubland
19%inclusion5 decks27 decks
3%synergy
Fell the Profane
15%inclusion4 decks27 decks
6%synergy