Arvinox, the Mind Flail (Commander) - Core Theft

Alternate Names:

Mind Flayer, the ShadowMind Flayer, the Shadow

Arvinox, the Mind Flail
Rank #1,332
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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
78%inclusion7 decks9 decks
76%synergy
Outrageous Robbery
78%inclusion7 decks9 decks
76%synergy
Gisa, Glorious Resurrector
78%inclusion7 decks9 decks
72%synergy
Intellect Devourer
67%inclusion6 decks9 decks
66%synergy
Heartless Conscription
67%inclusion6 decks9 decks
65%synergy
Cunning Rhetoric
67%inclusion6 decks9 decks
64%synergy
Gonti, Lord of Luxury
67%inclusion6 decks9 decks
63%synergy
Author of Shadows
56%inclusion5 decks9 decks
55%synergy
Sepulchral Primordial
56%inclusion5 decks9 decks
53%synergy
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56%inclusion5 decks9 decks
53%synergy
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Feed the Swarm
78%inclusion7 decks9 decks
26%synergy
Defile
67%inclusion6 decks9 decks
29%synergy
Sign in Blood
67%inclusion6 decks9 decks
30%synergy
Dark Ritual
56%inclusion5 decks9 decks
-11%synergy
Crypt Ghast
56%inclusion5 decks9 decks
7%synergy
Jet Medallion
56%inclusion5 decks9 decks
-4%synergy
Withering Torment
56%inclusion5 decks9 decks
24%synergy
Solemn Simulacrum
44%inclusion4 decks9 decks
21%synergy
Dread Presence
44%inclusion4 decks9 decks
29%synergy
Magus of the Coffers
44%inclusion4 decks9 decks
37%synergy
Creatures
Gix, Yawgmoth Praetor
44%inclusion4 decks9 decks
39%synergy
Nashi, Moon Sage's Scion
44%inclusion4 decks9 decks
40%synergy
Geth, Lord of the Vault
44%inclusion4 decks9 decks
43%synergy
Elder Brain
44%inclusion4 decks9 decks
42%synergy
Gray Merchant of Asphodel
33%inclusion3 decks9 decks
-18%synergy
Defiler of Flesh
33%inclusion3 decks9 decks
29%synergy
Nirkana Revenant
33%inclusion3 decks9 decks
22%synergy
Tinybones, the Pickpocket
33%inclusion3 decks9 decks
28%synergy
Thieving Varmint
33%inclusion3 decks9 decks
30%synergy
K'rrik, Son of Yawgmoth
33%inclusion3 decks9 decks
15%synergy
Rakshasa Debaser
33%inclusion3 decks9 decks
32%synergy
Reito Sentinel
33%inclusion3 decks9 decks
33%synergy
Gonti, Night Minister
29%inclusion2 decks7 decks
26%synergy
Chrome Companion
25%inclusion1 decks4 decks
25%synergy
Bismuth Mindrender
22%inclusion2 decks9 decks
21%synergy
Hoarding Broodlord
22%inclusion2 decks9 decks
18%synergy
Morbid Opportunist
22%inclusion2 decks9 decks
0%synergy
Grim Haruspex
22%inclusion2 decks9 decks
13%synergy
Shelob, Dread Weaver
22%inclusion2 decks9 decks
22%synergy
Lim-Dûl the Necromancer
22%inclusion2 decks9 decks
22%synergy
Burnished Hart
22%inclusion2 decks9 decks
14%synergy
Sheoldred, Whispering One
22%inclusion2 decks9 decks
10%synergy
Sheoldred
22%inclusion2 decks9 decks
15%synergy
Valgavoth, Terror Eater
22%inclusion2 decks9 decks
17%synergy
Chainer, Dementia Master
22%inclusion2 decks9 decks
17%synergy
Draugr Necromancer
22%inclusion2 decks9 decks
22%synergy
Oblivion Sower
22%inclusion2 decks9 decks
22%synergy
Kheru Mind-Eater
22%inclusion2 decks9 decks
22%synergy
Herald of Leshrac
22%inclusion2 decks9 decks
22%synergy
Dauthi Voidwalker
22%inclusion2 decks9 decks
6%synergy
Ardyn, the Usurper
20%inclusion1 decks5 decks
17%synergy
Summon: Bahamut
20%inclusion1 decks5 decks
19%synergy
Summon: Anima
20%inclusion1 decks5 decks
19%synergy
Tinybones, Bauble Burglar
13%inclusion1 decks8 decks
9%synergy
Bushmeat Poacher
11%inclusion1 decks9 decks
11%synergy
Creeping Bloodsucker
11%inclusion1 decks9 decks
6%synergy
Prowling Geistcatcher
11%inclusion1 decks9 decks
11%synergy
Dark Confidant
11%inclusion1 decks9 decks
4%synergy
Summoner's Egg
11%inclusion1 decks9 decks
11%synergy
The Wretched
11%inclusion1 decks9 decks
11%synergy
Marrow-Gnawer
11%inclusion1 decks9 decks
8%synergy
Plaguecrafter
11%inclusion1 decks9 decks
-9%synergy
Ayara, First of Locthwain
11%inclusion1 decks9 decks
-15%synergy
Phyrexian Obliterator
11%inclusion1 decks9 decks
0%synergy
Gravespawn Sovereign
11%inclusion1 decks9 decks
10%synergy
Fleshbag Marauder
11%inclusion1 decks9 decks
-4%synergy
Nighthowler
11%inclusion1 decks9 decks
11%synergy
Harvester of Souls
11%inclusion1 decks9 decks
4%synergy
Crabomination
11%inclusion1 decks9 decks
10%synergy
Marshland Bloodcaster
11%inclusion1 decks9 decks
10%synergy
Instants
Hagra Mauling
44%inclusion4 decks9 decks
40%synergy
Infernal Grasp
44%inclusion4 decks9 decks
19%synergy
Grim Return
44%inclusion4 decks9 decks
43%synergy
Fell the Profane
33%inclusion3 decks9 decks
15%synergy
Consuming Corruption
33%inclusion3 decks9 decks
17%synergy
Reckoner's Bargain
22%inclusion2 decks9 decks
19%synergy
Stinging Study
22%inclusion2 decks9 decks
19%synergy
Thrilling Encore
22%inclusion2 decks9 decks
20%synergy
Imp's Mischief
22%inclusion2 decks9 decks
-1%synergy
Soul Shatter
22%inclusion2 decks9 decks
10%synergy
Nurgle's Conscription
22%inclusion2 decks9 decks
22%synergy
Malakir Rebirth
22%inclusion2 decks9 decks
0%synergy
Hero's Downfall
11%inclusion1 decks9 decks
4%synergy
Deadly Rollick
11%inclusion1 decks9 decks
-12%synergy
Grotesque Mutation
11%inclusion1 decks9 decks
11%synergy
Fated Return
11%inclusion1 decks9 decks
11%synergy
Force of Despair
11%inclusion1 decks9 decks
3%synergy
Scour from Existence
11%inclusion1 decks9 decks
11%synergy
Go for the Throat
11%inclusion1 decks9 decks
-12%synergy
Deadly Dispute
11%inclusion1 decks9 decks
-13%synergy
Flare of Malice
11%inclusion1 decks9 decks
-2%synergy
Doom Blade
11%inclusion1 decks9 decks
3%synergy
March of Wretched Sorrow
11%inclusion1 decks9 decks
9%synergy
Rescue from the Underworld
11%inclusion1 decks9 decks
11%synergy
Tendrils of Corruption
11%inclusion1 decks9 decks
7%synergy
Darkness
11%inclusion1 decks9 decks
2%synergy
Baleful Mastery
11%inclusion1 decks9 decks
2%synergy
Black Sun's Twilight
11%inclusion1 decks9 decks
7%synergy
Demon's Due
11%inclusion1 decks9 decks
11%synergy
Hostile Negotiations
11%inclusion1 decks9 decks
10%synergy
Cast Down
11%inclusion1 decks9 decks
9%synergy
Blood Pact
11%inclusion1 decks9 decks
7%synergy
Sudden Spoiling
11%inclusion1 decks9 decks
2%synergy
Szat's Will
11%inclusion1 decks9 decks
8%synergy
Tragic Slip
11%inclusion1 decks9 decks
-10%synergy
Wretched Confluence
11%inclusion1 decks9 decks
10%synergy
Sorceries
Come Back Wrong
44%inclusion4 decks9 decks
42%synergy
Bubbling Muck
44%inclusion4 decks9 decks
29%synergy
Read the Bones
44%inclusion4 decks9 decks
26%synergy
Necromantic Selection
44%inclusion4 decks9 decks
42%synergy
Rise of the Dark Realms
44%inclusion4 decks9 decks
32%synergy
Dredge the Mire
33%inclusion3 decks9 decks
33%synergy
Mutilate
33%inclusion3 decks9 decks
14%synergy
Cruelclaw's Heist
33%inclusion3 decks9 decks
31%synergy
Reanimate
33%inclusion3 decks9 decks
-5%synergy
Diresight
33%inclusion3 decks9 decks
30%synergy
Syphon Mind
33%inclusion3 decks9 decks
20%synergy
Blasphemous Edict
25%inclusion2 decks8 decks
8%synergy
Visions of Dread
22%inclusion2 decks9 decks
22%synergy
Xander's Pact
22%inclusion2 decks9 decks
22%synergy
Night's Whisper
22%inclusion2 decks9 decks
-2%synergy
Exsanguinate
22%inclusion2 decks9 decks
-2%synergy
Gix's Command
22%inclusion2 decks9 decks
20%synergy
Decree of Pain
22%inclusion2 decks9 decks
16%synergy
Insatiable Avarice
22%inclusion2 decks9 decks
10%synergy
Toxic Deluge
22%inclusion2 decks9 decks
-15%synergy
Deadly Tempest
22%inclusion2 decks9 decks
20%synergy
Extinguish All Hope
22%inclusion2 decks9 decks
22%synergy
Ghouls' Night Out
22%inclusion2 decks9 decks
21%synergy
Invoke Despair
22%inclusion2 decks9 decks
20%synergy
Worthy Cost
20%inclusion1 decks5 decks
18%synergy
Afterlife from the Loam
20%inclusion1 decks5 decks
19%synergy
New Blood
11%inclusion1 decks9 decks
11%synergy
Black Sun's Zenith
11%inclusion1 decks9 decks
5%synergy
Vat Emergence
11%inclusion1 decks9 decks
10%synergy
Bone Splinters
11%inclusion1 decks9 decks
9%synergy
Plague Wind
11%inclusion1 decks9 decks
10%synergy
Command the Dreadhorde
11%inclusion1 decks9 decks
9%synergy
Soul Transfer
11%inclusion1 decks9 decks
11%synergy
Necromantic Summons
11%inclusion1 decks9 decks
11%synergy
Torment of Hailfire
11%inclusion1 decks9 decks
-5%synergy
Ghastly Conscription
11%inclusion1 decks9 decks
11%synergy
Predators' Hour
11%inclusion1 decks9 decks
10%synergy
Dead of Winter
11%inclusion1 decks9 decks
10%synergy
Shadow of the Enemy
11%inclusion1 decks9 decks
11%synergy
Phthisis
11%inclusion1 decks9 decks
11%synergy
Introduction to Annihilation
11%inclusion1 decks9 decks
11%synergy
Praetor's Grasp
11%inclusion1 decks9 decks
7%synergy
Scheming Symmetry
11%inclusion1 decks9 decks
7%synergy
Yawgmoth's Vile Offering
11%inclusion1 decks9 decks
10%synergy
Blood Money
11%inclusion1 decks9 decks
8%synergy
Ancient Craving
11%inclusion1 decks9 decks
9%synergy
Dregs of Sorrow
11%inclusion1 decks9 decks
11%synergy
Hex
11%inclusion1 decks9 decks
10%synergy
Their Number Is Legion
11%inclusion1 decks9 decks
8%synergy
In Garruk's Wake
11%inclusion1 decks9 decks
7%synergy
Utility Artifacts
The Darkness Crystal
60%inclusion3 decks5 decks
40%synergy
Realmbreaker, the Invasion Tree
33%inclusion3 decks9 decks
32%synergy
Requiem Monolith
25%inclusion1 decks4 decks
23%synergy
Wayfarer's Bauble
22%inclusion2 decks9 decks
6%synergy
Ghost Vacuum
22%inclusion2 decks9 decks
21%synergy
Bontu's Monument
22%inclusion2 decks9 decks
-6%synergy
Staff of Eden, Vault's Key
22%inclusion2 decks9 decks
21%synergy
Strionic Resonator
22%inclusion2 decks9 decks
21%synergy
Reito Lantern
22%inclusion2 decks9 decks
22%synergy
Campfire
11%inclusion1 decks9 decks
10%synergy
Deathrender
11%inclusion1 decks9 decks
11%synergy
Chaos Wand
11%inclusion1 decks9 decks
11%synergy
Throne of Empires
11%inclusion1 decks9 decks
11%synergy
Elixir of Immortality
11%inclusion1 decks9 decks
9%synergy
Midnight Crusader Shuttle
11%inclusion1 decks9 decks
11%synergy
Tarrian's Soulcleaver
11%inclusion1 decks9 decks
8%synergy
Portal to Phyrexia
11%inclusion1 decks9 decks
9%synergy
Scepter of Empires
11%inclusion1 decks9 decks
11%synergy
Dream-Thief's Bandana
11%inclusion1 decks9 decks
10%synergy
Ashnod's Altar
11%inclusion1 decks9 decks
-8%synergy
Bitterthorn, Nissa's Animus
11%inclusion1 decks9 decks
10%synergy
Vedalken Orrery
11%inclusion1 decks9 decks
11%synergy
Nautiloid Ship
11%inclusion1 decks9 decks
11%synergy
Vorpal Sword
11%inclusion1 decks9 decks
7%synergy
Mimic Vat
11%inclusion1 decks9 decks
10%synergy
Haunted Cloak
11%inclusion1 decks9 decks
10%synergy
Mazemind Tome
11%inclusion1 decks9 decks
11%synergy
Bloodforged Battle-Axe
11%inclusion1 decks9 decks
11%synergy
Bonehoard
11%inclusion1 decks9 decks
11%synergy
Expedition Map
11%inclusion1 decks9 decks
-2%synergy
Grimoire of the Dead
11%inclusion1 decks9 decks
10%synergy
Nevinyrral's Disk
11%inclusion1 decks9 decks
10%synergy
Cybership
11%inclusion1 decks9 decks
11%synergy
Inquisitor's Flail
11%inclusion1 decks9 decks
11%synergy
Manascape Refractor
11%inclusion1 decks9 decks
11%synergy
Crown of Empires
11%inclusion1 decks9 decks
11%synergy
Mask of Griselbrand
11%inclusion1 decks9 decks
8%synergy
Kusari-Gama
11%inclusion1 decks9 decks
11%synergy
Reckoner Bankbuster
11%inclusion1 decks9 decks
11%synergy
Eater of Virtue
11%inclusion1 decks9 decks
11%synergy
Rings of Brighthearth
11%inclusion1 decks9 decks
10%synergy
Assault Suit
11%inclusion1 decks9 decks
11%synergy
Swiftfoot Boots
11%inclusion1 decks9 decks
-20%synergy
Lightning Greaves
11%inclusion1 decks9 decks
-22%synergy
Mask of Memory
11%inclusion1 decks9 decks
9%synergy
Loxodon Warhammer
11%inclusion1 decks9 decks
10%synergy
Helm of Awakening
11%inclusion1 decks9 decks
10%synergy
Collector's Vault
11%inclusion1 decks9 decks
10%synergy
Aether Vial
11%inclusion1 decks9 decks
11%synergy
Enchantments
Minion's Return
44%inclusion4 decks9 decks
44%synergy
Grave Betrayal
33%inclusion3 decks9 decks
30%synergy
Dead Man's Chest
33%inclusion3 decks9 decks
33%synergy
Black Market
22%inclusion2 decks9 decks
1%synergy
The Eldest Reborn
22%inclusion2 decks9 decks
18%synergy
Court of Locthwain
22%inclusion2 decks9 decks
20%synergy
Meathook Massacre II
22%inclusion2 decks9 decks
15%synergy
Kaya's Ghostform
22%inclusion2 decks9 decks
12%synergy
Animate Dead
22%inclusion2 decks9 decks
4%synergy
Black Market Connections
22%inclusion2 decks9 decks
-1%synergy
Greed
11%inclusion1 decks9 decks
4%synergy
The Cruelty of Gix
11%inclusion1 decks9 decks
9%synergy
Tribute to Horobi
11%inclusion1 decks9 decks
10%synergy
Liliana's Talent
11%inclusion1 decks9 decks
10%synergy
Hedonist's Trove
11%inclusion1 decks9 decks
11%synergy
Call of the Ring
11%inclusion1 decks9 decks
8%synergy
Arguel's Blood Fast
11%inclusion1 decks9 decks
10%synergy
Demonic Embrace
11%inclusion1 decks9 decks
10%synergy
Unhallowed Pact
11%inclusion1 decks9 decks
11%synergy
Revenge of Ravens
11%inclusion1 decks9 decks
9%synergy
Phyrexian Arena
11%inclusion1 decks9 decks
-29%synergy
Death in Heaven
11%inclusion1 decks9 decks
11%synergy
Heartless Summoning
11%inclusion1 decks9 decks
7%synergy
Virtue of Persistence
11%inclusion1 decks9 decks
5%synergy
Planeswalkers
Ugin, the Ineffable
11%inclusion1 decks9 decks
11%synergy
Tevesh Szat, Doom of Fools
11%inclusion1 decks9 decks
8%synergy
Liliana Vess
11%inclusion1 decks9 decks
8%synergy
Liliana, Waker of the Dead
11%inclusion1 decks9 decks
6%synergy
Liliana, the Necromancer
11%inclusion1 decks9 decks
10%synergy
Utility Lands
Bojuka Bog
67%inclusion6 decks9 decks
20%synergy
Rogue's Passage
56%inclusion5 decks9 decks
37%synergy
Cabal Stronghold
44%inclusion4 decks9 decks
9%synergy
Cabal Coffers
44%inclusion4 decks9 decks
-11%synergy
Mortuary Mire
33%inclusion3 decks9 decks
20%synergy
Witch's Cottage
33%inclusion3 decks9 decks
9%synergy
Emergence Zone
33%inclusion3 decks9 decks
30%synergy
Midgar, City of Mako
25%inclusion1 decks4 decks
12%synergy
War Room
22%inclusion2 decks9 decks
6%synergy
Nykthos, Shrine to Nyx
22%inclusion2 decks9 decks
-8%synergy
Terrain Generator
22%inclusion2 decks9 decks
20%synergy
Takenuma, Abandoned Mire
22%inclusion2 decks9 decks
6%synergy
Thespian's Stage
22%inclusion2 decks9 decks
16%synergy
Temple of the False God
22%inclusion2 decks9 decks
14%synergy
Scrying Sheets
11%inclusion1 decks9 decks
11%synergy
Phyrexian Tower
11%inclusion1 decks9 decks
-13%synergy
Arcane Lighthouse
11%inclusion1 decks9 decks
9%synergy
Barren Moor
11%inclusion1 decks9 decks
1%synergy
Maze of Ith
11%inclusion1 decks9 decks
8%synergy
Vesuva
11%inclusion1 decks9 decks
8%synergy
Crypt of Agadeem
11%inclusion1 decks9 decks
0%synergy
Spymaster's Vault
11%inclusion1 decks9 decks
1%synergy
Command Beacon
11%inclusion1 decks9 decks
3%synergy
Volatile Fault
11%inclusion1 decks9 decks
10%synergy
Labyrinth of Skophos
11%inclusion1 decks9 decks
11%synergy
Castle Locthwain
11%inclusion1 decks9 decks
-7%synergy
Hive of the Eye Tyrant
11%inclusion1 decks9 decks
10%synergy
Urborg, Tomb of Yawgmoth
11%inclusion1 decks9 decks
-27%synergy
Havengul Laboratory
11%inclusion1 decks9 decks
11%synergy
Hidden Necropolis
11%inclusion1 decks9 decks
9%synergy
Mana Artifacts
Sol Ring
89%inclusion8 decks9 decks
2%synergy
Arcane Signet
67%inclusion6 decks9 decks
4%synergy
Thran Dynamo
67%inclusion6 decks9 decks
61%synergy
Mind Stone
67%inclusion6 decks9 decks
35%synergy
Charcoal Diamond
56%inclusion5 decks9 decks
32%synergy
Worn Powerstone
56%inclusion5 decks9 decks
51%synergy
Everflowing Chalice
33%inclusion3 decks9 decks
27%synergy
Thought Vessel
33%inclusion3 decks9 decks
6%synergy
Nyx Lotus
33%inclusion3 decks9 decks
26%synergy
Commander's Sphere
22%inclusion2 decks9 decks
13%synergy
Gauntlet of Power
22%inclusion2 decks9 decks
19%synergy
Replicating Ring
22%inclusion2 decks9 decks
22%synergy
Hedron Archive
22%inclusion2 decks9 decks
18%synergy
Throne of Eldraine
22%inclusion2 decks9 decks
11%synergy
Extraplanar Lens
22%inclusion2 decks9 decks
17%synergy
Lotus Bloom
11%inclusion1 decks9 decks
11%synergy
Unstable Obelisk
11%inclusion1 decks9 decks
10%synergy
Caged Sun
11%inclusion1 decks9 decks
-1%synergy
Pristine Talisman
11%inclusion1 decks9 decks
9%synergy
Ebony Fly
11%inclusion1 decks9 decks
11%synergy
Planar Atlas
11%inclusion1 decks9 decks
11%synergy
Sol Talisman
11%inclusion1 decks9 decks
11%synergy
Fellwar Stone
11%inclusion1 decks9 decks
-4%synergy
Coveted Jewel
11%inclusion1 decks9 decks
10%synergy
Gilded Lotus
11%inclusion1 decks9 decks
5%synergy
Infernal Idol
11%inclusion1 decks9 decks
10%synergy
Darksteel Ingot
11%inclusion1 decks9 decks
11%synergy
Stonespeaker Crystal
11%inclusion1 decks9 decks
11%synergy
Sceptre of Eternal Glory
11%inclusion1 decks9 decks
2%synergy
Prismatic Lens
11%inclusion1 decks9 decks
9%synergy
Skyclave Relic
11%inclusion1 decks9 decks
11%synergy
Lands
Swamp
67%inclusion6 decks9 decks
-28%synergy
Myriad Landscape
56%inclusion5 decks9 decks
29%synergy
Hagra Mauling
44%inclusion4 decks9 decks
40%synergy
Fell the Profane
33%inclusion3 decks9 decks
15%synergy
Snow-Covered Swamp
33%inclusion3 decks9 decks
26%synergy
Urza's Cave
22%inclusion2 decks9 decks
14%synergy
Demolition Field
22%inclusion2 decks9 decks
17%synergy
Malakir Rebirth
22%inclusion2 decks9 decks
0%synergy
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