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
Bender's Waterskin
13%inclusion2 decks15 decks
10%synergy
Waterbender Ascension
11%inclusion1 decks9 decks
10%synergy
Northern Air Temple
9.1%inclusion1 decks11 decks
9%synergy
The Spirit Oasis
9.1%inclusion1 decks11 decks
9%synergy
Southern Air Temple
6.7%inclusion1 decks15 decks
7%synergy
High Synergy Cards
Ripples of Undeath
68%inclusion17 decks25 decks
65%synergy
Inquisitive Glimmer
72%inclusion18 decks25 decks
64%synergy
Mesa Enchantress
72%inclusion18 decks25 decks
63%synergy
Seal of Cleansing
64%inclusion16 decks25 decks
62%synergy
Entity Tracker
68%inclusion17 decks25 decks
61%synergy
Fear of Impostors
60%inclusion15 decks25 decks
58%synergy
Starfield Mystic
64%inclusion16 decks25 decks
57%synergy
Overlord of the Floodpits
60%inclusion15 decks25 decks
56%synergy
Scrabbling Skullcrab
56%inclusion14 decks25 decks
55%synergy
Gravebreaker Lamia
52%inclusion13 decks25 decks
51%synergy
Top Cards
Demon of Fate's Design
56%inclusion14 decks25 decks
50%synergy
Fear of Sleep Paralysis
56%inclusion14 decks25 decks
50%synergy
Doomwake Giant
56%inclusion14 decks25 decks
50%synergy
Necromancy
52%inclusion13 decks25 decks
47%synergy
Animate Dead
52%inclusion13 decks25 decks
42%synergy
Grasp of Fate
48%inclusion12 decks25 decks
42%synergy
Sevinne's Reclamation
48%inclusion12 decks25 decks
39%synergy
Overlord of the Balemurk
48%inclusion12 decks25 decks
46%synergy
Cemetery Tampering
48%inclusion12 decks25 decks
47%synergy
Secret Arcade // Dusty Parlor
48%inclusion12 decks25 decks
43%synergy
Creatures
Silent Hallcreeper
44%inclusion11 decks25 decks
40%synergy
Heliod, the Radiant Dawn
44%inclusion11 decks25 decks
40%synergy
Soaring Lightbringer
36%inclusion9 decks25 decks
31%synergy
Victor, Valgavoth's Seneschal
36%inclusion9 decks25 decks
34%synergy
Aminatou, Veil Piercer
36%inclusion9 decks25 decks
35%synergy
Zur, Eternal Schemer
36%inclusion9 decks25 decks
33%synergy
Ondu Spiritdancer
36%inclusion9 decks25 decks
30%synergy
Athreos, Shroud-Veiled
32%inclusion8 decks25 decks
28%synergy
Enduring Curiosity
32%inclusion8 decks25 decks
24%synergy
Overlord of the Mistmoors
28%inclusion7 decks25 decks
26%synergy
Archetype of Imagination
28%inclusion7 decks25 decks
23%synergy
Ancient Cellarspawn
28%inclusion7 decks25 decks
25%synergy
Spirited Companion
24%inclusion6 decks25 decks
22%synergy
Grim Guardian
24%inclusion6 decks25 decks
21%synergy
Mindwrack Harpy
24%inclusion6 decks25 decks
24%synergy
Alseid of Life's Bounty
20%inclusion5 decks25 decks
19%synergy
Sage of Mysteries
16%inclusion4 decks25 decks
16%synergy
Stitcher's Supplier
16%inclusion4 decks25 decks
15%synergy
Moon-Blessed Cleric
16%inclusion4 decks25 decks
11%synergy
Nashi, Searcher in the Dark
16%inclusion4 decks25 decks
16%synergy
Solemn Simulacrum
12%inclusion3 decks25 decks
-3%synergy
Starnheim Courser
12%inclusion3 decks25 decks
8%synergy
Metamorphosis Fanatic
12%inclusion3 decks25 decks
7%synergy
Archon of Sun's Grace
12%inclusion3 decks25 decks
7%synergy
Ashiok's Reaper
12%inclusion3 decks25 decks
12%synergy
Fear of the Dark
12%inclusion3 decks25 decks
12%synergy
Skullsnap Nuisance
12%inclusion3 decks25 decks
12%synergy
Appendage Amalgam
12%inclusion3 decks25 decks
12%synergy
Balemurk Leech
12%inclusion3 decks25 decks
11%synergy
Nightmare Shepherd
12%inclusion3 decks25 decks
9%synergy
Auramancer
12%inclusion3 decks25 decks
9%synergy
Ghostly Dancers
12%inclusion3 decks25 decks
9%synergy
Valgavoth, Terror Eater
12%inclusion3 decks25 decks
9%synergy
Zur the Enchanter
12%inclusion3 decks25 decks
7%synergy
Callaphe, Beloved of the Sea
12%inclusion3 decks25 decks
11%synergy
Summon: Yojimbo
10%inclusion2 decks20 decks
9%synergy
Summon: Anima
10%inclusion2 decks20 decks
10%synergy
Phenax, God of Deception
8.0%inclusion2 decks25 decks
8%synergy
Lotho, Corrupt Shirriff
8.0%inclusion2 decks25 decks
-9%synergy
Syr Konrad, the Grim
8.0%inclusion2 decks25 decks
2%synergy
Mulldrifter
8.0%inclusion2 decks25 decks
3%synergy
Dorothea, Vengeful Victim
8.0%inclusion2 decks25 decks
8%synergy
The Mindskinner
8.0%inclusion2 decks25 decks
7%synergy
Hanna, Ship's Navigator
8.0%inclusion2 decks25 decks
6%synergy
Agent of Erebos
8.0%inclusion2 decks25 decks
8%synergy
Dream Eater
8.0%inclusion2 decks25 decks
7%synergy
Fear of Surveillance
8.0%inclusion2 decks25 decks
8%synergy
Hydroelectric Specimen
8.0%inclusion2 decks25 decks
5%synergy
Boggart Trawler
8.0%inclusion2 decks25 decks
5%synergy
Fear of Abduction
8.0%inclusion2 decks25 decks
8%synergy
Instants
Swords to Plowshares
44%inclusion11 decks25 decks
-24%synergy
Thirst for Meaning
36%inclusion9 decks25 decks
34%synergy
Counterspell
28%inclusion7 decks25 decks
-13%synergy
Path to Exile
28%inclusion7 decks25 decks
-14%synergy
Arcane Denial
24%inclusion6 decks25 decks
4%synergy
Frantic Search
20%inclusion5 decks25 decks
3%synergy
Otherworldly Gaze
20%inclusion5 decks25 decks
18%synergy
Inkshield
20%inclusion5 decks25 decks
11%synergy
Brainstorm
16%inclusion4 decks25 decks
-1%synergy
Fell the Profane
12%inclusion3 decks25 decks
3%synergy
An Offer You Can't Refuse
12%inclusion3 decks25 decks
-15%synergy
Entomb
12%inclusion3 decks25 decks
5%synergy
Void Rend
12%inclusion3 decks25 decks
-22%synergy
Swan Song
12%inclusion3 decks25 decks
-7%synergy
Anguished Unmaking
12%inclusion3 decks25 decks
-13%synergy
Generous Gift
12%inclusion3 decks25 decks
-3%synergy
Swallowed by Leviathan
12%inclusion2 decks17 decks
11%synergy
Refute
8.7%inclusion2 decks23 decks
6%synergy
Return to Dust
8.0%inclusion2 decks25 decks
4%synergy
Negate
8.0%inclusion2 decks25 decks
-9%synergy
Dark Ritual
8.0%inclusion2 decks25 decks
-11%synergy
Slip Out the Back
8.0%inclusion2 decks25 decks
7%synergy
Sink into Stupor
8.0%inclusion2 decks25 decks
-5%synergy
Utter End
8.0%inclusion2 decks25 decks
1%synergy
Sejiri Shelter
8.0%inclusion2 decks25 decks
6%synergy
Live or Die
8.0%inclusion2 decks25 decks
8%synergy
Waterlogged Teachings
8.0%inclusion2 decks25 decks
4%synergy
Withering Torment
8.0%inclusion2 decks25 decks
6%synergy
Consult the Star Charts
6.7%inclusion1 decks15 decks
6%synergy
Dreams of Laguna
5.0%inclusion1 decks20 decks
5%synergy
Sorceries
Redress Fate
32%inclusion8 decks25 decks
26%synergy
Dance of the Manse
28%inclusion7 decks25 decks
24%synergy
Extinguish All Hope
24%inclusion6 decks25 decks
22%synergy
Resurgent Belief
20%inclusion5 decks25 decks
18%synergy
Time Wipe
20%inclusion5 decks25 decks
13%synergy
Reanimate
20%inclusion5 decks25 decks
4%synergy
Windfall
16%inclusion4 decks25 decks
2%synergy
Demonic Counsel
16%inclusion4 decks25 decks
15%synergy
Singularity Rupture
13%inclusion2 decks15 decks
11%synergy
Space-Time Anomaly
13%inclusion2 decks15 decks
12%synergy
Ponder
12%inclusion3 decks25 decks
3%synergy
Commune with Evil
12%inclusion3 decks25 decks
12%synergy
Replenish
12%inclusion3 decks25 decks
10%synergy
Glimpse the Unthinkable
12%inclusion3 decks25 decks
12%synergy
Living Death
12%inclusion3 decks25 decks
7%synergy
Toxic Deluge
12%inclusion3 decks25 decks
-7%synergy
Stock Up
8.7%inclusion2 decks23 decks
7%synergy
Austere Command
8.0%inclusion2 decks25 decks
-1%synergy
Incarnation Technique
8.0%inclusion2 decks25 decks
7%synergy
Cut Your Losses
8.0%inclusion2 decks25 decks
8%synergy
Feed the Swarm
8.0%inclusion2 decks25 decks
5%synergy
Treasure Cruise
8.0%inclusion2 decks25 decks
5%synergy
Brilliant Restoration
8.0%inclusion2 decks25 decks
6%synergy
Damn
8.0%inclusion2 decks25 decks
-12%synergy
Final Vengeance
8.0%inclusion2 decks25 decks
8%synergy
Unburial Rites
8.0%inclusion2 decks25 decks
5%synergy
Utility Artifacts
Whip of Erebos
12%inclusion3 decks25 decks
10%synergy
Keys to the House
12%inclusion3 decks25 decks
12%synergy
Archaeomancer's Map
12%inclusion3 decks25 decks
7%synergy
Mesmeric Orb
8.0%inclusion2 decks25 decks
7%synergy
Perpetual Timepiece
8.0%inclusion2 decks25 decks
8%synergy
Wayfarer's Bauble
8.0%inclusion2 decks25 decks
0%synergy
Claws of Gix
8.0%inclusion2 decks25 decks
8%synergy
Lightning Greaves
8.0%inclusion2 decks25 decks
-14%synergy
Rescue Skiff
6.7%inclusion1 decks15 decks
7%synergy
Enchantments
Dress Down
44%inclusion11 decks25 decks
41%synergy
Monologue Tax
40%inclusion10 decks25 decks
34%synergy
Cacophony Unleashed
36%inclusion9 decks25 decks
34%synergy
Mirrormade
36%inclusion9 decks25 decks
26%synergy
Estrid's Invocation
36%inclusion9 decks25 decks
31%synergy
The Tale of Tamiyo
36%inclusion9 decks25 decks
36%synergy
Amphibian Downpour
36%inclusion9 decks25 decks
31%synergy
Polluted Cistern // Dim Oubliette
36%inclusion9 decks25 decks
35%synergy
Stillness in Motion
33%inclusion7 decks21 decks
33%synergy
Sigil of the Empty Throne
32%inclusion8 decks25 decks
26%synergy
Starfield of Nyx
32%inclusion8 decks25 decks
28%synergy
Sphere of Safety
32%inclusion8 decks25 decks
23%synergy
Mirror Room // Fractured Realm
32%inclusion8 decks25 decks
30%synergy
Propaganda
32%inclusion8 decks25 decks
6%synergy
Teval's Judgment
29%inclusion6 decks21 decks
28%synergy
Mystic Remora
28%inclusion7 decks25 decks
7%synergy
Secrets of the Dead
28%inclusion7 decks25 decks
28%synergy
Ghostly Prison
28%inclusion7 decks25 decks
6%synergy
Shark Typhoon
24%inclusion6 decks25 decks
18%synergy
Timely Ward
24%inclusion6 decks25 decks
19%synergy
Sheltered by Ghosts
24%inclusion6 decks25 decks
21%synergy
Defiled Crypt // Cadaver Lab
24%inclusion6 decks25 decks
23%synergy
The Meathook Massacre
20%inclusion5 decks25 decks
17%synergy
Dance of the Dead
20%inclusion5 decks25 decks
18%synergy
Imprisoned in the Moon
20%inclusion5 decks25 decks
13%synergy
The Eldest Reborn
20%inclusion5 decks25 decks
17%synergy
Out of the Tombs
20%inclusion5 decks25 decks
20%synergy
Blind Obedience
20%inclusion5 decks25 decks
8%synergy
Derelict Attic // Widow's Walk
20%inclusion5 decks25 decks
20%synergy
Oubliette
20%inclusion5 decks25 decks
18%synergy
Nowhere to Run
20%inclusion5 decks25 decks
19%synergy
Ethereal Armor
20%inclusion5 decks25 decks
15%synergy
Cramped Vents // Access Maze
16%inclusion4 decks25 decks
13%synergy
Touch the Spirit Realm
16%inclusion4 decks25 decks
13%synergy
Surgical Suite // Hospital Room
16%inclusion4 decks25 decks
16%synergy
Seal of Doom
16%inclusion4 decks25 decks
16%synergy
Spirit-Sister's Call
16%inclusion4 decks25 decks
15%synergy
Copy Enchantment
16%inclusion4 decks25 decks
11%synergy
Central Elevator // Promising Stairs
16%inclusion4 decks25 decks
15%synergy
Hallowed Haunting
16%inclusion4 decks25 decks
14%synergy
Seal of Removal
16%inclusion4 decks25 decks
15%synergy
Darksteel Mutation
12%inclusion3 decks25 decks
6%synergy
Underwater Tunnel // Slimy Aquarium
12%inclusion3 decks25 decks
12%synergy
Lost in the Maze
12%inclusion3 decks25 decks
12%synergy
Extravagant Replication
12%inclusion3 decks25 decks
7%synergy
Utter Insignificance
12%inclusion3 decks25 decks
11%synergy
Grievous Wound
12%inclusion3 decks25 decks
11%synergy
Meathook Massacre II
12%inclusion3 decks25 decks
11%synergy
Seal from Existence
12%inclusion3 decks25 decks
11%synergy
Funeral Room // Awakening Hall
12%inclusion3 decks25 decks
11%synergy
Battles
Invasion of Theros
12%inclusion3 decks25 decks
10%synergy
Utility Lands
Bojuka Bog
64%inclusion16 decks25 decks
37%synergy
Hall of Heliod's Generosity
52%inclusion13 decks25 decks
39%synergy
Takenuma, Abandoned Mire
28%inclusion7 decks25 decks
21%synergy
Halimar Depths
24%inclusion6 decks25 decks
19%synergy
Otawara, Soaring City
24%inclusion6 decks25 decks
5%synergy
Reliquary Tower
16%inclusion4 decks25 decks
-18%synergy
Cephalid Coliseum
16%inclusion4 decks25 decks
12%synergy
Urborg, Tomb of Yawgmoth
12%inclusion3 decks25 decks
-1%synergy
Nephalia Drownyard
8.0%inclusion2 decks25 decks
7%synergy
Drownyard Temple
8.0%inclusion2 decks25 decks
8%synergy
Temple of the False God
8.0%inclusion2 decks25 decks
0%synergy
Adagia, Windswept Bastion
6.7%inclusion1 decks15 decks
4%synergy
Ishgard, the Holy See
5.0%inclusion1 decks20 decks
1%synergy
Mana Artifacts
Arcane Signet
80%inclusion20 decks25 decks
-8%synergy
Sol Ring
60%inclusion15 decks25 decks
-30%synergy
Azorius Signet
44%inclusion11 decks25 decks
11%synergy
Talisman of Dominance
40%inclusion10 decks25 decks
-9%synergy
Talisman of Progress
36%inclusion9 decks25 decks
-7%synergy
Dimir Signet
36%inclusion9 decks25 decks
3%synergy
Talisman of Hierarchy
36%inclusion9 decks25 decks
-7%synergy
Orzhov Signet
36%inclusion9 decks25 decks
1%synergy
Fellwar Stone
24%inclusion6 decks25 decks
-10%synergy
Commander's Sphere
20%inclusion5 decks25 decks
1%synergy
Mind Stone
16%inclusion4 decks25 decks
3%synergy
Lands
Command Tower
100%inclusion25 decks25 decks
8%synergy
Plains
96%inclusion24 decks25 decks
5%synergy
Swamp
92%inclusion23 decks25 decks
1%synergy
Island
92%inclusion23 decks25 decks
-1%synergy
Exotic Orchard
64%inclusion16 decks25 decks
6%synergy
Arcane Sanctum
60%inclusion15 decks25 decks
5%synergy
Caves of Koilos
56%inclusion14 decks25 decks
21%synergy
Adarkar Wastes
56%inclusion14 decks25 decks
25%synergy
Underground River
52%inclusion13 decks25 decks
19%synergy
Isolated Chapel
44%inclusion11 decks25 decks
6%synergy
Drowned Catacomb
44%inclusion11 decks25 decks
9%synergy
Glacial Fortress
40%inclusion10 decks25 decks
0%synergy
Prairie Stream
40%inclusion10 decks25 decks
-1%synergy
Valgavoth's Lair
40%inclusion10 decks25 decks
37%synergy
Temple of Silence
40%inclusion10 decks25 decks
20%synergy
Watery Grave
40%inclusion10 decks25 decks
-10%synergy
Temple of Deceit
36%inclusion9 decks25 decks
18%synergy
Evolving Wilds
36%inclusion9 decks25 decks
11%synergy
Hallowed Fountain
36%inclusion9 decks25 decks
-13%synergy
Undercity Sewers
32%inclusion8 decks25 decks
18%synergy
Terramorphic Expanse
32%inclusion8 decks25 decks
15%synergy
Contaminated Landscape
32%inclusion8 decks25 decks
17%synergy
Godless Shrine
32%inclusion8 decks25 decks
-18%synergy
Meticulous Archive
32%inclusion8 decks25 decks
18%synergy
Sunken Hollow
32%inclusion8 decks25 decks
-8%synergy
Obscura Storefront
32%inclusion8 decks25 decks
22%synergy
Dimir Aqueduct
28%inclusion7 decks25 decks
14%synergy
Temple of Enlightenment
28%inclusion7 decks25 decks
11%synergy
Morphic Pool
28%inclusion7 decks25 decks
-6%synergy
Deserted Beach
28%inclusion7 decks25 decks
7%synergy
Flooded Strand
28%inclusion7 decks25 decks
-10%synergy
Azorius Chancery
24%inclusion6 decks25 decks
9%synergy
Shadowy Backstreet
24%inclusion6 decks25 decks
12%synergy
Sea of Clouds
24%inclusion6 decks25 decks
-12%synergy
Raffine's Tower
24%inclusion6 decks25 decks
-17%synergy
Orzhov Basilica
24%inclusion6 decks25 decks
8%synergy
Marsh Flats
24%inclusion6 decks25 decks
-12%synergy
Polluted Delta
24%inclusion6 decks25 decks
-13%synergy
Floodfarm Verge
24%inclusion6 decks25 decks
13%synergy
Tainted Isle
20%inclusion5 decks25 decks
14%synergy
Tundra
20%inclusion5 decks25 decks
4%synergy
Tainted Field
20%inclusion5 decks25 decks
13%synergy
Darkwater Catacombs
20%inclusion5 decks25 decks
6%synergy
Underground Sea
20%inclusion5 decks25 decks
4%synergy
Ash Barrens
20%inclusion5 decks25 decks
9%synergy
Path of Ancestry
20%inclusion5 decks25 decks
-7%synergy
Scrubland
20%inclusion5 decks25 decks
4%synergy
Gloomlake Verge
20%inclusion5 decks25 decks
9%synergy
Vault of Champions
20%inclusion5 decks25 decks
-13%synergy
Port Town
16%inclusion4 decks25 decks
-1%synergy