Mind Flayer, the Shadow (Commander) - Upgraded

Original Name:

Arvinox, the Mind FlailArvinox, the Mind Flail

Mind Flayer, the Shadow
Rank #1,401
76decks
As CommanderAs CardAverage DeckDecks
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Budget
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Sikora
Oct 30, 2025
Sikora
How To Play Horrors Differently In Commander
It's the spookiest time of the year... are you thinking of brewing a deck full of Horrors? We've got some ideas for how to keep it unique!
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Black Widow, Super Spy
33%inclusion1 decks3 decks
33%synergy
Decorum Dissertation
6.7%inclusion1 decks15 decks
1%synergy
Scheming Silvertongue
6.7%inclusion1 decks15 decks
-0%synergy
Changing Loyalty
6.3%inclusion1 decks16 decks
5%synergy
Grave Researcher
5.9%inclusion1 decks17 decks
-2%synergy
High Synergy Cards
Brainstealer Dragon
78%inclusion59 decks76 decks
75%synergy
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74%inclusion56 decks76 decks
70%synergy
Elder Brain
68%inclusion52 decks76 decks
66%synergy
Cunning Rhetoric
62%inclusion47 decks76 decks
59%synergy
Breach the Multiverse
64%inclusion49 decks76 decks
59%synergy
Thieving Amalgam
55%inclusion42 decks76 decks
54%synergy
Intellect Devourer
53%inclusion40 decks76 decks
52%synergy
Dauthi Voidwalker
66%inclusion50 decks76 decks
50%synergy
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54%inclusion41 decks76 decks
49%synergy
Court of Locthwain
47%inclusion36 decks76 decks
45%synergy
Top Cards
Dark Ritual
82%inclusion62 decks76 decks
15%synergy
Crypt Ghast
80%inclusion61 decks76 decks
33%synergy
Jet Medallion
75%inclusion57 decks76 decks
13%synergy
Reanimate
67%inclusion51 decks76 decks
27%synergy
Gray Merchant of Asphodel
66%inclusion50 decks76 decks
15%synergy
Nirkana Revenant
54%inclusion41 decks76 decks
43%synergy
Feed the Swarm
53%inclusion40 decks76 decks
2%synergy
Phyrexian Arena
53%inclusion40 decks76 decks
13%synergy
Defile
50%inclusion38 decks76 decks
14%synergy
The Darkness Crystal
50%inclusion31 decks62 decks
30%synergy
Game Changers
Bolas's Citadel
36%inclusion27 decks76 decks
7%synergy
Opposition Agent
34%inclusion26 decks76 decks
25%synergy
Demonic Tutor
25%inclusion19 decks76 decks
-2%synergy
Tergrid, God of Fright
21%inclusion16 decks76 decks
14%synergy
Necropotence
18%inclusion14 decks76 decks
4%synergy
Ancient Tomb
13%inclusion10 decks76 decks
2%synergy
Vampiric Tutor
11%inclusion8 decks76 decks
-10%synergy
Creatures
Dread Presence
47%inclusion36 decks76 decks
34%synergy
Solemn Simulacrum
43%inclusion33 decks76 decks
22%synergy
K'rrik, Son of Yawgmoth
42%inclusion32 decks76 decks
23%synergy
Geth, Lord of the Vault
42%inclusion32 decks76 decks
41%synergy
Gonti, Night Minister
38%inclusion27 decks72 decks
35%synergy
Sepulchral Primordial
36%inclusion27 decks76 decks
33%synergy
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36%inclusion27 decks76 decks
32%synergy
Junktroller
34%inclusion26 decks76 decks
34%synergy
Thieving Varmint
34%inclusion26 decks76 decks
31%synergy
Magus of the Coffers
33%inclusion25 decks76 decks
26%synergy
Valgavoth, Terror Eater
33%inclusion25 decks76 decks
28%synergy
Black Cat, Cunning Thief
33%inclusion16 decks49 decks
31%synergy
Burnished Hart
32%inclusion24 decks76 decks
25%synergy
Reito Sentinel
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30%synergy
Tinybones, the Pickpocket
28%inclusion21 decks76 decks
22%synergy
Gix, Yawgmoth Praetor
26%inclusion20 decks76 decks
21%synergy
Crabomination
26%inclusion20 decks76 decks
25%synergy
Hoarding Broodlord
22%inclusion17 decks76 decks
18%synergy
Sheoldred, Whispering One
22%inclusion17 decks76 decks
11%synergy
Rakshasa Debaser
21%inclusion16 decks76 decks
20%synergy
Bismuth Mindrender
20%inclusion15 decks76 decks
19%synergy
Morbid Opportunist
20%inclusion15 decks76 decks
-4%synergy
Phyrexian Obliterator
20%inclusion15 decks76 decks
9%synergy
Plaguecrafter
18%inclusion14 decks76 decks
-2%synergy
Draugr Necromancer
18%inclusion14 decks76 decks
18%synergy
Oblivion Sower
18%inclusion14 decks76 decks
18%synergy
Tinybones, Bauble Burglar
17%inclusion13 decks75 decks
14%synergy
Rev, Tithe Extractor
16%inclusion12 decks75 decks
14%synergy
Lord of the Void
16%inclusion12 decks76 decks
14%synergy
Sheoldred
13%inclusion10 decks76 decks
7%synergy
Braids, Arisen Nightmare
13%inclusion10 decks76 decks
-6%synergy
Author of Shadows
12%inclusion9 decks76 decks
11%synergy
Ancient Cellarspawn
12%inclusion9 decks76 decks
10%synergy
Kheru Mind-Eater
12%inclusion9 decks76 decks
12%synergy
Accursed Marauder
12%inclusion9 decks76 decks
-10%synergy
Sheoldred, the Apocalypse
11%inclusion8 decks76 decks
-4%synergy
Defiler of Flesh
11%inclusion8 decks76 decks
7%synergy
Leaden Myr
11%inclusion8 decks76 decks
5%synergy
Abyssal Harvester
9.3%inclusion7 decks75 decks
6%synergy
Wandering Archaic
9.2%inclusion7 decks76 decks
9%synergy
Lorcan, Warlock Collector
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9%synergy
Junji, the Midnight Sky
9.2%inclusion7 decks76 decks
4%synergy
Keen Duelist
9.2%inclusion7 decks76 decks
8%synergy
Chainer, Dementia Master
9.2%inclusion7 decks76 decks
4%synergy
Erebos, God of the Dead
7.9%inclusion6 decks76 decks
3%synergy
Fleshbag Marauder
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-9%synergy
Ancient Brass Dragon
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7%synergy
Massacre Wurm
7.9%inclusion6 decks76 decks
-9%synergy
Nightmare Shepherd
7.9%inclusion6 decks76 decks
6%synergy
Liliana, Heretical Healer
7.9%inclusion6 decks76 decks
4%synergy
Instants
Withering Torment
46%inclusion35 decks76 decks
15%synergy
Infernal Grasp
39%inclusion30 decks76 decks
14%synergy
Outrageous Robbery
36%inclusion27 decks76 decks
34%synergy
Stinging Study
33%inclusion25 decks76 decks
30%synergy
Consuming Corruption
26%inclusion20 decks76 decks
11%synergy
Imp's Mischief
25%inclusion19 decks76 decks
0%synergy
Soul Shatter
25%inclusion19 decks76 decks
13%synergy
Darkness
25%inclusion19 decks76 decks
15%synergy
Sudden Spoiling
25%inclusion19 decks76 decks
16%synergy
Baleful Mastery
24%inclusion18 decks76 decks
15%synergy
Deadly Rollick
22%inclusion17 decks76 decks
-2%synergy
Fell the Profane
22%inclusion17 decks76 decks
3%synergy
Go for the Throat
22%inclusion17 decks76 decks
-0%synergy
Malakir Rebirth
21%inclusion16 decks76 decks
-2%synergy
Grim Return
17%inclusion13 decks76 decks
16%synergy
Force of Despair
14%inclusion11 decks76 decks
7%synergy
The Spot's Portal
14%inclusion7 decks49 decks
14%synergy
Snuff Out
13%inclusion10 decks76 decks
-0%synergy
Doom Blade
13%inclusion10 decks76 decks
6%synergy
Deadly Dispute
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-15%synergy
Hero's Downfall
11%inclusion8 decks76 decks
4%synergy
Thrilling Encore
11%inclusion8 decks76 decks
9%synergy
Cabal Ritual
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-9%synergy
Murder
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-1%synergy
Hagra Mauling
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3%synergy
Village Rites
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-18%synergy
Withering Boon
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3%synergy
Tragic Slip
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-12%synergy
Archenemy's Charm
7.3%inclusion4 decks55 decks
-2%synergy
Sheoldred's Edict
6.6%inclusion5 decks76 decks
-8%synergy
Culling the Weak
5.3%inclusion4 decks76 decks
-12%synergy
Bitter Triumph
5.3%inclusion4 decks76 decks
-5%synergy
Sorceries
Sign in Blood
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14%synergy
Night's Whisper
41%inclusion31 decks76 decks
16%synergy
Damnation
41%inclusion31 decks76 decks
21%synergy
Rise of the Dark Realms
39%inclusion30 decks76 decks
26%synergy
Exsanguinate
38%inclusion29 decks76 decks
13%synergy
Heartless Conscription
34%inclusion26 decks76 decks
33%synergy
Toxic Deluge
34%inclusion26 decks76 decks
-3%synergy
Bubbling Muck
32%inclusion24 decks76 decks
16%synergy
Cruelclaw's Heist
30%inclusion23 decks76 decks
28%synergy
Dredge the Mire
29%inclusion22 decks76 decks
28%synergy
Torment of Hailfire
26%inclusion20 decks76 decks
11%synergy
Praetor's Grasp
26%inclusion20 decks76 decks
22%synergy
Mutilate
24%inclusion18 decks76 decks
7%synergy
Read the Bones
20%inclusion15 decks76 decks
3%synergy
Visions of Dread
17%inclusion13 decks76 decks
17%synergy
Beacon of Unrest
16%inclusion12 decks76 decks
12%synergy
Victimize
14%inclusion11 decks76 decks
-13%synergy
Syphon Mind
14%inclusion11 decks76 decks
2%synergy
Grim Tutor
14%inclusion11 decks76 decks
3%synergy
Blasphemous Edict
13%inclusion10 decks75 decks
-3%synergy
Diabolic Tutor
13%inclusion10 decks76 decks
-1%synergy
Blood Money
13%inclusion10 decks76 decks
10%synergy
Shadow of the Enemy
12%inclusion9 decks76 decks
11%synergy
Insatiable Avarice
12%inclusion9 decks76 decks
1%synergy
Necromantic Selection
12%inclusion9 decks76 decks
10%synergy
Xander's Pact
11%inclusion8 decks76 decks
10%synergy
Decree of Pain
11%inclusion8 decks76 decks
5%synergy
Petty Larceny
9.2%inclusion7 decks76 decks
9%synergy
Come Back Wrong
7.9%inclusion6 decks76 decks
5%synergy
Profane Transfusion
7.9%inclusion6 decks76 decks
6%synergy
Predators' Hour
7.9%inclusion6 decks76 decks
7%synergy
Yawgmoth's Vile Offering
7.9%inclusion6 decks76 decks
7%synergy
In Garruk's Wake
7.9%inclusion6 decks76 decks
4%synergy
Sanguimancy
7.9%inclusion6 decks76 decks
7%synergy
Psychotic Episode
6.6%inclusion5 decks76 decks
7%synergy
Profane Tutor
6.6%inclusion5 decks76 decks
2%synergy
Agadeem's Awakening
6.6%inclusion5 decks76 decks
-1%synergy
Ashen Powder
6.6%inclusion5 decks76 decks
6%synergy
Ambition's Cost
6.6%inclusion5 decks76 decks
4%synergy
Extinguish All Hope
6.6%inclusion5 decks76 decks
6%synergy
Black Sun's Zenith
5.3%inclusion4 decks76 decks
-0%synergy
Blood on the Snow
5.3%inclusion4 decks76 decks
4%synergy
Dead of Winter
5.3%inclusion4 decks76 decks
4%synergy
Beseech the Queen
5.3%inclusion4 decks76 decks
-1%synergy
Worst Fears
5.3%inclusion4 decks76 decks
5%synergy
Utility Artifacts
Bontu's Monument
33%inclusion25 decks76 decks
5%synergy
Staff of Eden, Vault's Key
30%inclusion23 decks76 decks
29%synergy
Lightning Greaves
30%inclusion23 decks76 decks
-3%synergy
Wayfarer's Bauble
28%inclusion21 decks76 decks
13%synergy
Expedition Map
26%inclusion20 decks76 decks
15%synergy
Reito Lantern
26%inclusion20 decks76 decks
26%synergy
Swiftfoot Boots
25%inclusion19 decks76 decks
-6%synergy
Whip of Erebos
21%inclusion16 decks76 decks
10%synergy
Strionic Resonator
16%inclusion12 decks76 decks
14%synergy
Realmbreaker, the Invasion Tree
14%inclusion11 decks76 decks
14%synergy
Portal to Phyrexia
12%inclusion9 decks76 decks
10%synergy
Mindcrank
11%inclusion8 decks76 decks
5%synergy
Chaos Wand
9.2%inclusion7 decks76 decks
9%synergy
Nautiloid Ship
9.2%inclusion7 decks76 decks
9%synergy
Dream-Thief's Bandana
6.6%inclusion5 decks76 decks
6%synergy
Vedalken Orrery
6.6%inclusion5 decks76 decks
6%synergy
The Cauldron of Eternity
6.6%inclusion5 decks76 decks
6%synergy
Commander's Plate
6.6%inclusion5 decks76 decks
1%synergy
Fishing Gear
6.4%inclusion3 decks47 decks
6%synergy
Aetherflux Reservoir
5.3%inclusion4 decks76 decks
-4%synergy
Enchantments
Animate Dead
43%inclusion33 decks76 decks
26%synergy
Black Market
41%inclusion31 decks76 decks
20%synergy
Dead Man's Chest
37%inclusion28 decks76 decks
36%synergy
Grave Betrayal
36%inclusion27 decks76 decks
33%synergy
Black Market Connections
26%inclusion20 decks76 decks
2%synergy
No Mercy
24%inclusion18 decks76 decks
16%synergy
Virtue of Persistence
22%inclusion17 decks76 decks
18%synergy
Meathook Massacre II
17%inclusion13 decks76 decks
11%synergy
Minion's Return
13%inclusion10 decks76 decks
12%synergy
Heartless Summoning
13%inclusion10 decks76 decks
8%synergy
Necromancy
12%inclusion9 decks76 decks
6%synergy
Oubliette
12%inclusion9 decks76 decks
9%synergy
Protection Racket
11%inclusion8 decks76 decks
10%synergy
Exquisite Blood
11%inclusion8 decks76 decks
-3%synergy
The Eldest Reborn
9.2%inclusion7 decks76 decks
6%synergy
The Meathook Massacre
7.9%inclusion6 decks76 decks
-9%synergy
Dance of the Dead
7.9%inclusion6 decks76 decks
5%synergy
Greed
6.6%inclusion5 decks76 decks
0%synergy
The Cruelty of Gix
6.6%inclusion5 decks76 decks
5%synergy
Kaya's Ghostform
6.6%inclusion5 decks76 decks
-3%synergy
Hedonist's Trove
6.6%inclusion5 decks76 decks
6%synergy
Bloodchief Ascension
5.3%inclusion4 decks76 decks
-4%synergy
Painful Quandary
5.3%inclusion4 decks76 decks
-5%synergy
Planeswalkers
Liliana of the Dark Realms
37%inclusion28 decks76 decks
23%synergy
Tevesh Szat, Doom of Fools
6.6%inclusion5 decks76 decks
3%synergy
Sorin Markov
5.3%inclusion4 decks76 decks
3%synergy
Utility Lands
Cabal Coffers
88%inclusion67 decks76 decks
33%synergy
Cabal Stronghold
71%inclusion54 decks76 decks
37%synergy
Urborg, Tomb of Yawgmoth
57%inclusion43 decks76 decks
19%synergy
Nykthos, Shrine to Nyx
51%inclusion39 decks76 decks
22%synergy
Bojuka Bog
46%inclusion35 decks76 decks
-1%synergy
Reliquary Tower
36%inclusion27 decks76 decks
6%synergy
Castle Locthwain
34%inclusion26 decks76 decks
17%synergy
Witch's Cottage
28%inclusion21 decks76 decks
3%synergy
War Room
26%inclusion20 decks76 decks
10%synergy
Temple of the False God
25%inclusion19 decks76 decks
17%synergy
Takenuma, Abandoned Mire
25%inclusion19 decks76 decks
9%synergy
Phyrexian Tower
22%inclusion17 decks76 decks
-3%synergy
Thespian's Stage
21%inclusion16 decks76 decks
16%synergy
Rogue's Passage
16%inclusion12 decks76 decks
-3%synergy
Command Beacon
16%inclusion12 decks76 decks
8%synergy
Maze of Ith
13%inclusion10 decks76 decks
10%synergy
Shizo, Death's Storehouse
12%inclusion9 decks76 decks
2%synergy
Mortuary Mire
12%inclusion9 decks76 decks
-1%synergy
Crypt of Agadeem
12%inclusion9 decks76 decks
0%synergy
Barren Moor
11%inclusion8 decks76 decks
1%synergy
Deserted Temple
11%inclusion8 decks76 decks
6%synergy
Havengul Laboratory
11%inclusion8 decks76 decks
10%synergy
Vesuva
6.6%inclusion5 decks76 decks
4%synergy
Barad-dûr
6.6%inclusion5 decks76 decks
3%synergy
Susur Secundi, Void Altar
5.5%inclusion3 decks55 decks
-2%synergy
Lake of the Dead
5.3%inclusion4 decks76 decks
0%synergy
Geier Reach Sanitarium
5.3%inclusion4 decks76 decks
-5%synergy
Mana Artifacts
Sol Ring
96%inclusion73 decks76 decks
10%synergy
Arcane Signet
67%inclusion51 decks76 decks
6%synergy
Thought Vessel
37%inclusion28 decks76 decks
12%synergy
Thran Dynamo
34%inclusion26 decks76 decks
28%synergy
Mind Stone
34%inclusion26 decks76 decks
6%synergy
Nyx Lotus
34%inclusion26 decks76 decks
28%synergy
Charcoal Diamond
28%inclusion21 decks76 decks
6%synergy
Fellwar Stone
25%inclusion19 decks76 decks
11%synergy
Caged Sun
22%inclusion17 decks76 decks
11%synergy
Throne of Eldraine
18%inclusion14 decks76 decks
9%synergy
Sceptre of Eternal Glory
18%inclusion14 decks76 decks
10%synergy
Vessel of Endless Rest
17%inclusion13 decks76 decks
17%synergy
Gilded Lotus
17%inclusion13 decks76 decks
12%synergy
The Soul Stone
15%inclusion8 decks54 decks
-0%synergy
Commander's Sphere
14%inclusion11 decks76 decks
6%synergy
Everflowing Chalice
13%inclusion10 decks76 decks
8%synergy
Extraplanar Lens
13%inclusion10 decks76 decks
8%synergy
Worn Powerstone
12%inclusion9 decks76 decks
8%synergy
Gauntlet of Power
9.2%inclusion7 decks76 decks
6%synergy
Hedron Archive
7.9%inclusion6 decks76 decks
5%synergy
Coldsteel Heart
5.3%inclusion4 decks76 decks
4%synergy
Lands
Swamp
82%inclusion62 decks76 decks
-14%synergy
Myriad Landscape
43%inclusion33 decks76 decks
18%synergy
Fell the Profane
22%inclusion17 decks76 decks
3%synergy
Malakir Rebirth
21%inclusion16 decks76 decks
-2%synergy
Snow-Covered Swamp
20%inclusion15 decks76 decks
13%synergy
Urza's Cave
18%inclusion14 decks76 decks
10%synergy
Hagra Mauling
7.9%inclusion6 decks76 decks
3%synergy
Demolition Field
7.9%inclusion6 decks76 decks
3%synergy
Agadeem's Awakening
6.6%inclusion5 decks76 decks
-1%synergy
Exotic Orchard
5.3%inclusion4 decks76 decks
4%synergy
Boggart Trawler
5.3%inclusion4 decks76 decks
-4%synergy
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