Arvinox, the Mind Flail (Commander) - Core Theft

Alternate Names:

Mind Flayer, the ShadowMind Flayer, the Shadow

Arvinox, the Mind Flail
Rank #1,326
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Background image for How To Play Horrors Differently In Commander
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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Thieving Amalgam
80%inclusion8 decks10 decks
79%synergy
Outrageous Robbery
80%inclusion8 decks10 decks
78%synergy
Gisa, Glorious Resurrector
80%inclusion8 decks10 decks
75%synergy
Intellect Devourer
70%inclusion7 decks10 decks
69%synergy
Heartless Conscription
70%inclusion7 decks10 decks
69%synergy
Cunning Rhetoric
70%inclusion7 decks10 decks
68%synergy
Gonti, Lord of Luxury
70%inclusion7 decks10 decks
67%synergy
Author of Shadows
60%inclusion6 decks10 decks
59%synergy
Sepulchral Primordial
60%inclusion6 decks10 decks
58%synergy
Brainstealer Dragon
60%inclusion6 decks10 decks
57%synergy
Top Cards
Feed the Swarm
80%inclusion8 decks10 decks
29%synergy
Defile
70%inclusion7 decks10 decks
33%synergy
Sign in Blood
70%inclusion7 decks10 decks
34%synergy
Dark Ritual
60%inclusion6 decks10 decks
-7%synergy
Solemn Simulacrum
50%inclusion5 decks10 decks
27%synergy
Come Back Wrong
50%inclusion5 decks10 decks
47%synergy
Read the Bones
50%inclusion5 decks10 decks
32%synergy
Minion's Return
50%inclusion5 decks10 decks
49%synergy
Crypt Ghast
50%inclusion5 decks10 decks
2%synergy
Jet Medallion
50%inclusion5 decks10 decks
-11%synergy
Creatures
Nashi, Moon Sage's Scion
50%inclusion5 decks10 decks
46%synergy
Elder Brain
50%inclusion5 decks10 decks
47%synergy
Dread Presence
40%inclusion4 decks10 decks
25%synergy
Magus of the Coffers
40%inclusion4 decks10 decks
33%synergy
Defiler of Flesh
40%inclusion4 decks10 decks
36%synergy
Gix, Yawgmoth Praetor
40%inclusion4 decks10 decks
35%synergy
Thieving Varmint
40%inclusion4 decks10 decks
37%synergy
K'rrik, Son of Yawgmoth
40%inclusion4 decks10 decks
21%synergy
Geth, Lord of the Vault
40%inclusion4 decks10 decks
38%synergy
Rakshasa Debaser
40%inclusion4 decks10 decks
39%synergy
Reito Sentinel
40%inclusion4 decks10 decks
40%synergy
Gonti, Night Minister
38%inclusion3 decks8 decks
35%synergy
Bismuth Mindrender
30%inclusion3 decks10 decks
29%synergy
Gray Merchant of Asphodel
30%inclusion3 decks10 decks
-22%synergy
Nirkana Revenant
30%inclusion3 decks10 decks
19%synergy
Tinybones, the Pickpocket
30%inclusion3 decks10 decks
25%synergy
Kheru Mind-Eater
30%inclusion3 decks10 decks
30%synergy
Tinybones, Bauble Burglar
22%inclusion2 decks9 decks
19%synergy
Hoarding Broodlord
20%inclusion2 decks10 decks
16%synergy
Plaguecrafter
20%inclusion2 decks10 decks
0%synergy
Morbid Opportunist
20%inclusion2 decks10 decks
-3%synergy
Crabomination
20%inclusion2 decks10 decks
19%synergy
Junktroller
20%inclusion2 decks10 decks
20%synergy
Grim Haruspex
20%inclusion2 decks10 decks
11%synergy
Shelob, Dread Weaver
20%inclusion2 decks10 decks
20%synergy
Lim-Dûl the Necromancer
20%inclusion2 decks10 decks
20%synergy
Burnished Hart
20%inclusion2 decks10 decks
12%synergy
Sheoldred, Whispering One
20%inclusion2 decks10 decks
8%synergy
Sheoldred
20%inclusion2 decks10 decks
14%synergy
Valgavoth, Terror Eater
20%inclusion2 decks10 decks
15%synergy
Chainer, Dementia Master
20%inclusion2 decks10 decks
15%synergy
Draugr Necromancer
20%inclusion2 decks10 decks
20%synergy
Oblivion Sower
20%inclusion2 decks10 decks
20%synergy
Accursed Marauder
20%inclusion2 decks10 decks
-1%synergy
Herald of Leshrac
20%inclusion2 decks10 decks
20%synergy
Dauthi Voidwalker
20%inclusion2 decks10 decks
4%synergy
Leaden Myr
20%inclusion2 decks10 decks
14%synergy
Chrome Companion
20%inclusion1 decks5 decks
20%synergy
Ardyn, the Usurper
17%inclusion1 decks6 decks
14%synergy
Summon: Bahamut
17%inclusion1 decks6 decks
16%synergy
Summon: Anima
17%inclusion1 decks6 decks
15%synergy
Bushmeat Poacher
10%inclusion1 decks10 decks
10%synergy
Creeping Bloodsucker
10%inclusion1 decks10 decks
5%synergy
Prowling Geistcatcher
10%inclusion1 decks10 decks
9%synergy
Dark Confidant
10%inclusion1 decks10 decks
3%synergy
Summoner's Egg
10%inclusion1 decks10 decks
10%synergy
The Wretched
10%inclusion1 decks10 decks
10%synergy
Marrow-Gnawer
10%inclusion1 decks10 decks
7%synergy
Ayara, First of Locthwain
10%inclusion1 decks10 decks
-16%synergy
Phyrexian Obliterator
10%inclusion1 decks10 decks
-1%synergy
Instants
Hagra Mauling
50%inclusion5 decks10 decks
45%synergy
Grim Return
50%inclusion5 decks10 decks
49%synergy
Withering Torment
50%inclusion5 decks10 decks
18%synergy
Consuming Corruption
40%inclusion4 decks10 decks
24%synergy
Infernal Grasp
40%inclusion4 decks10 decks
15%synergy
Fell the Profane
30%inclusion3 decks10 decks
11%synergy
Reckoner's Bargain
20%inclusion2 decks10 decks
17%synergy
Fated Return
20%inclusion2 decks10 decks
20%synergy
Stinging Study
20%inclusion2 decks10 decks
17%synergy
Thrilling Encore
20%inclusion2 decks10 decks
18%synergy
Imp's Mischief
20%inclusion2 decks10 decks
-4%synergy
Soul Shatter
20%inclusion2 decks10 decks
8%synergy
Nurgle's Conscription
20%inclusion2 decks10 decks
20%synergy
Malakir Rebirth
20%inclusion2 decks10 decks
-3%synergy
Hero's Downfall
10%inclusion1 decks10 decks
3%synergy
Deadly Rollick
10%inclusion1 decks10 decks
-14%synergy
Grotesque Mutation
10%inclusion1 decks10 decks
10%synergy
Force of Despair
10%inclusion1 decks10 decks
2%synergy
Scour from Existence
10%inclusion1 decks10 decks
10%synergy
Go for the Throat
10%inclusion1 decks10 decks
-13%synergy
Deadly Dispute
10%inclusion1 decks10 decks
-15%synergy
Flare of Malice
10%inclusion1 decks10 decks
-3%synergy
Doom Blade
10%inclusion1 decks10 decks
2%synergy
March of Wretched Sorrow
10%inclusion1 decks10 decks
8%synergy
Rescue from the Underworld
10%inclusion1 decks10 decks
9%synergy
Tendrils of Corruption
10%inclusion1 decks10 decks
6%synergy
Darkness
10%inclusion1 decks10 decks
0%synergy
Murder
10%inclusion1 decks10 decks
0%synergy
Baleful Mastery
10%inclusion1 decks10 decks
1%synergy
Black Sun's Twilight
10%inclusion1 decks10 decks
6%synergy
Demon's Due
10%inclusion1 decks10 decks
10%synergy
Hostile Negotiations
10%inclusion1 decks10 decks
9%synergy
Cast Down
10%inclusion1 decks10 decks
8%synergy
Blood Pact
10%inclusion1 decks10 decks
6%synergy
Sudden Spoiling
10%inclusion1 decks10 decks
1%synergy
Szat's Will
10%inclusion1 decks10 decks
7%synergy
Tragic Slip
10%inclusion1 decks10 decks
-10%synergy
Wretched Confluence
10%inclusion1 decks10 decks
9%synergy
Sorceries
Rise of the Dark Realms
50%inclusion5 decks10 decks
37%synergy
Bubbling Muck
40%inclusion4 decks10 decks
24%synergy
Cruelclaw's Heist
40%inclusion4 decks10 decks
37%synergy
Necromantic Selection
40%inclusion4 decks10 decks
38%synergy
Visions of Dread
30%inclusion3 decks10 decks
30%synergy
Dredge the Mire
30%inclusion3 decks10 decks
29%synergy
Xander's Pact
30%inclusion3 decks10 decks
30%synergy
Mutilate
30%inclusion3 decks10 decks
12%synergy
Night's Whisper
30%inclusion3 decks10 decks
6%synergy
Reanimate
30%inclusion3 decks10 decks
-9%synergy
Diresight
30%inclusion3 decks10 decks
27%synergy
Syphon Mind
30%inclusion3 decks10 decks
17%synergy
Blasphemous Edict
22%inclusion2 decks9 decks
5%synergy
Shadow of the Enemy
20%inclusion2 decks10 decks
19%synergy
Yawgmoth's Vile Offering
20%inclusion2 decks10 decks
19%synergy
Blood Money
20%inclusion2 decks10 decks
17%synergy
Exsanguinate
20%inclusion2 decks10 decks
-4%synergy
Gix's Command
20%inclusion2 decks10 decks
18%synergy
Decree of Pain
20%inclusion2 decks10 decks
14%synergy
Insatiable Avarice
20%inclusion2 decks10 decks
8%synergy
Toxic Deluge
20%inclusion2 decks10 decks
-17%synergy
Deadly Tempest
20%inclusion2 decks10 decks
18%synergy
Extinguish All Hope
20%inclusion2 decks10 decks
20%synergy
Ghouls' Night Out
20%inclusion2 decks10 decks
19%synergy
Invoke Despair
20%inclusion2 decks10 decks
18%synergy
The Final Days
20%inclusion1 decks5 decks
19%synergy
Worthy Cost
17%inclusion1 decks6 decks
15%synergy
Afterlife from the Loam
17%inclusion1 decks6 decks
16%synergy
New Blood
10%inclusion1 decks10 decks
10%synergy
Black Sun's Zenith
10%inclusion1 decks10 decks
4%synergy
Vat Emergence
10%inclusion1 decks10 decks
8%synergy
Bone Splinters
10%inclusion1 decks10 decks
8%synergy
Plague Wind
10%inclusion1 decks10 decks
9%synergy
Command the Dreadhorde
10%inclusion1 decks10 decks
8%synergy
Soul Transfer
10%inclusion1 decks10 decks
10%synergy
Necromantic Summons
10%inclusion1 decks10 decks
10%synergy
Torment of Hailfire
10%inclusion1 decks10 decks
-6%synergy
Ghastly Conscription
10%inclusion1 decks10 decks
10%synergy
Predators' Hour
10%inclusion1 decks10 decks
9%synergy
Dead of Winter
10%inclusion1 decks10 decks
9%synergy
Phthisis
10%inclusion1 decks10 decks
10%synergy
Introduction to Annihilation
10%inclusion1 decks10 decks
10%synergy
Praetor's Grasp
10%inclusion1 decks10 decks
6%synergy
Scheming Symmetry
10%inclusion1 decks10 decks
6%synergy
Ancient Craving
10%inclusion1 decks10 decks
8%synergy
Dregs of Sorrow
10%inclusion1 decks10 decks
10%synergy
Hex
10%inclusion1 decks10 decks
9%synergy
Their Number Is Legion
10%inclusion1 decks10 decks
7%synergy
In Garruk's Wake
10%inclusion1 decks10 decks
6%synergy
Beacon of Unrest
10%inclusion1 decks10 decks
6%synergy
Utility Artifacts
The Darkness Crystal
50%inclusion3 decks6 decks
30%synergy
Realmbreaker, the Invasion Tree
40%inclusion4 decks10 decks
39%synergy
Wayfarer's Bauble
30%inclusion3 decks10 decks
14%synergy
Dream-Thief's Bandana
20%inclusion2 decks10 decks
19%synergy
Ghost Vacuum
20%inclusion2 decks10 decks
19%synergy
Bontu's Monument
20%inclusion2 decks10 decks
-8%synergy
Staff of Eden, Vault's Key
20%inclusion2 decks10 decks
19%synergy
Strionic Resonator
20%inclusion2 decks10 decks
19%synergy
Reito Lantern
20%inclusion2 decks10 decks
20%synergy
Requiem Monolith
20%inclusion1 decks5 decks
18%synergy
Campfire
10%inclusion1 decks10 decks
9%synergy
Deathrender
10%inclusion1 decks10 decks
10%synergy
Chaos Wand
10%inclusion1 decks10 decks
10%synergy
Throne of Empires
10%inclusion1 decks10 decks
10%synergy
Elixir of Immortality
10%inclusion1 decks10 decks
8%synergy
Midnight Crusader Shuttle
10%inclusion1 decks10 decks
10%synergy
Portal to Phyrexia
10%inclusion1 decks10 decks
8%synergy
Scepter of Empires
10%inclusion1 decks10 decks
10%synergy
Ashnod's Altar
10%inclusion1 decks10 decks
-10%synergy
Bitterthorn, Nissa's Animus
10%inclusion1 decks10 decks
9%synergy
Vedalken Orrery
10%inclusion1 decks10 decks
9%synergy
Nautiloid Ship
10%inclusion1 decks10 decks
10%synergy
Mimic Vat
10%inclusion1 decks10 decks
9%synergy
Mazemind Tome
10%inclusion1 decks10 decks
10%synergy
Expedition Map
10%inclusion1 decks10 decks
-2%synergy
Grimoire of the Dead
10%inclusion1 decks10 decks
9%synergy
Nevinyrral's Disk
10%inclusion1 decks10 decks
9%synergy
Cybership
10%inclusion1 decks10 decks
10%synergy
Manascape Refractor
10%inclusion1 decks10 decks
10%synergy
Crown of Empires
10%inclusion1 decks10 decks
10%synergy
Mask of Griselbrand
10%inclusion1 decks10 decks
7%synergy
Reckoner Bankbuster
10%inclusion1 decks10 decks
10%synergy
Rings of Brighthearth
10%inclusion1 decks10 decks
9%synergy
Assault Suit
10%inclusion1 decks10 decks
10%synergy
Swiftfoot Boots
10%inclusion1 decks10 decks
-22%synergy
Lightning Greaves
10%inclusion1 decks10 decks
-24%synergy
Mask of Memory
10%inclusion1 decks10 decks
8%synergy
Helm of Awakening
10%inclusion1 decks10 decks
9%synergy
Collector's Vault
10%inclusion1 decks10 decks
9%synergy
Aether Vial
10%inclusion1 decks10 decks
10%synergy
Enchantments
Dead Man's Chest
40%inclusion4 decks10 decks
39%synergy
The Eldest Reborn
30%inclusion3 decks10 decks
26%synergy
Grave Betrayal
30%inclusion3 decks10 decks
27%synergy
Black Market
20%inclusion2 decks10 decks
-1%synergy
Court of Locthwain
20%inclusion2 decks10 decks
18%synergy
Meathook Massacre II
20%inclusion2 decks10 decks
13%synergy
Kaya's Ghostform
20%inclusion2 decks10 decks
10%synergy
Animate Dead
20%inclusion2 decks10 decks
2%synergy
Black Market Connections
20%inclusion2 decks10 decks
-3%synergy
Cacophony Unleashed
10%inclusion1 decks10 decks
10%synergy
Greed
10%inclusion1 decks10 decks
3%synergy
The Cruelty of Gix
10%inclusion1 decks10 decks
8%synergy
Quest for the Necropolis
10%inclusion1 decks10 decks
9%synergy
Tribute to Horobi
10%inclusion1 decks10 decks
9%synergy
Liliana's Talent
10%inclusion1 decks10 decks
9%synergy
Hedonist's Trove
10%inclusion1 decks10 decks
10%synergy
Call of the Ring
10%inclusion1 decks10 decks
8%synergy
Arguel's Blood Fast
10%inclusion1 decks10 decks
9%synergy
Unhallowed Pact
10%inclusion1 decks10 decks
10%synergy
Revenge of Ravens
10%inclusion1 decks10 decks
8%synergy
Phyrexian Arena
10%inclusion1 decks10 decks
-30%synergy
Death in Heaven
10%inclusion1 decks10 decks
10%synergy
Heartless Summoning
10%inclusion1 decks10 decks
5%synergy
Virtue of Persistence
10%inclusion1 decks10 decks
5%synergy
Planeswalkers
Ugin, the Ineffable
10%inclusion1 decks10 decks
10%synergy
Tevesh Szat, Doom of Fools
10%inclusion1 decks10 decks
7%synergy
Liliana Vess
10%inclusion1 decks10 decks
7%synergy
Liliana, Waker of the Dead
10%inclusion1 decks10 decks
5%synergy
Liliana, the Necromancer
10%inclusion1 decks10 decks
9%synergy
Utility Lands
Bojuka Bog
60%inclusion6 decks10 decks
13%synergy
Rogue's Passage
60%inclusion6 decks10 decks
41%synergy
Cabal Stronghold
40%inclusion4 decks10 decks
5%synergy
Mortuary Mire
40%inclusion4 decks10 decks
27%synergy
Witch's Cottage
40%inclusion4 decks10 decks
15%synergy
Cabal Coffers
40%inclusion4 decks10 decks
-15%synergy
Midgar, City of Mako
40%inclusion2 decks5 decks
28%synergy
Emergence Zone
30%inclusion3 decks10 decks
27%synergy
Thespian's Stage
30%inclusion3 decks10 decks
24%synergy
Temple of the False God
30%inclusion3 decks10 decks
22%synergy
Spymaster's Vault
20%inclusion2 decks10 decks
10%synergy
War Room
20%inclusion2 decks10 decks
4%synergy
Nykthos, Shrine to Nyx
20%inclusion2 decks10 decks
-10%synergy
Terrain Generator
20%inclusion2 decks10 decks
18%synergy
Takenuma, Abandoned Mire
20%inclusion2 decks10 decks
4%synergy
Susur Secundi, Void Altar
20%inclusion1 decks5 decks
12%synergy
Scrying Sheets
10%inclusion1 decks10 decks
10%synergy
Phyrexian Tower
10%inclusion1 decks10 decks
-14%synergy
Arcane Lighthouse
10%inclusion1 decks10 decks
8%synergy
Barren Moor
10%inclusion1 decks10 decks
0%synergy
Maze of Ith
10%inclusion1 decks10 decks
7%synergy
Vesuva
10%inclusion1 decks10 decks
7%synergy
Crypt of Agadeem
10%inclusion1 decks10 decks
-1%synergy
Command Beacon
10%inclusion1 decks10 decks
2%synergy
Volatile Fault
10%inclusion1 decks10 decks
9%synergy
Labyrinth of Skophos
10%inclusion1 decks10 decks
10%synergy
Castle Locthwain
10%inclusion1 decks10 decks
-7%synergy
Hive of the Eye Tyrant
10%inclusion1 decks10 decks
9%synergy
Urborg, Tomb of Yawgmoth
10%inclusion1 decks10 decks
-28%synergy
Havengul Laboratory
10%inclusion1 decks10 decks
10%synergy
Hidden Necropolis
10%inclusion1 decks10 decks
8%synergy
Mana Artifacts
Sol Ring
90%inclusion9 decks10 decks
4%synergy
Arcane Signet
80%inclusion8 decks10 decks
18%synergy
Charcoal Diamond
70%inclusion7 decks10 decks
47%synergy
Thran Dynamo
70%inclusion7 decks10 decks
64%synergy
Worn Powerstone
60%inclusion6 decks10 decks
56%synergy
Mind Stone
60%inclusion6 decks10 decks
30%synergy
Everflowing Chalice
40%inclusion4 decks10 decks
34%synergy
Commander's Sphere
40%inclusion4 decks10 decks
31%synergy
Thought Vessel
40%inclusion4 decks10 decks
13%synergy
Hedron Archive
30%inclusion3 decks10 decks
26%synergy
Nyx Lotus
30%inclusion3 decks10 decks
23%synergy
Gauntlet of Power
20%inclusion2 decks10 decks
17%synergy
Replicating Ring
20%inclusion2 decks10 decks
20%synergy
Throne of Eldraine
20%inclusion2 decks10 decks
10%synergy
Extraplanar Lens
20%inclusion2 decks10 decks
15%synergy
Lotus Bloom
10%inclusion1 decks10 decks
9%synergy
Unstable Obelisk
10%inclusion1 decks10 decks
9%synergy
Caged Sun
10%inclusion1 decks10 decks
-2%synergy
Pristine Talisman
10%inclusion1 decks10 decks
8%synergy
Ebony Fly
10%inclusion1 decks10 decks
10%synergy
Relic of Legends
10%inclusion1 decks10 decks
9%synergy
Planar Atlas
10%inclusion1 decks10 decks
10%synergy
Vessel of Endless Rest
10%inclusion1 decks10 decks
10%synergy
Sol Talisman
10%inclusion1 decks10 decks
9%synergy
Fellwar Stone
10%inclusion1 decks10 decks
-5%synergy
Coveted Jewel
10%inclusion1 decks10 decks
9%synergy
Gilded Lotus
10%inclusion1 decks10 decks
4%synergy
Infernal Idol
10%inclusion1 decks10 decks
9%synergy
Darksteel Ingot
10%inclusion1 decks10 decks
9%synergy
Stonespeaker Crystal
10%inclusion1 decks10 decks
10%synergy
Sceptre of Eternal Glory
10%inclusion1 decks10 decks
1%synergy
Prismatic Lens
10%inclusion1 decks10 decks
8%synergy
Skyclave Relic
10%inclusion1 decks10 decks
10%synergy
Lands
Swamp
70%inclusion7 decks10 decks
-25%synergy
Myriad Landscape
60%inclusion6 decks10 decks
34%synergy
Hagra Mauling
50%inclusion5 decks10 decks
45%synergy
Fell the Profane
30%inclusion3 decks10 decks
11%synergy
Snow-Covered Swamp
30%inclusion3 decks10 decks
23%synergy
Urza's Cave
20%inclusion2 decks10 decks
12%synergy
Demolition Field
20%inclusion2 decks10 decks
15%synergy
Malakir Rebirth
20%inclusion2 decks10 decks
-3%synergy
Terramorphic Expanse
10%inclusion1 decks10 decks
7%synergy
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