Arvinox, the Mind Flail (Commander) - Upgraded

Alternate Names:

Mind Flayer, the ShadowMind Flayer, the Shadow

Arvinox, the Mind Flail
Rank #1,356
72decks
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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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Pain 101
9.1%inclusion1 decks11 decks
8%synergy
Splinter's Technique
4.8%inclusion1 decks21 decks
3%synergy
High Synergy Cards
Brainstealer Dragon
79%inclusion57 decks72 decks
76%synergy
Gonti, Lord of Luxury
72%inclusion52 decks72 decks
69%synergy
Elder Brain
69%inclusion50 decks72 decks
67%synergy
Cunning Rhetoric
63%inclusion45 decks72 decks
60%synergy
Thieving Amalgam
61%inclusion44 decks72 decks
60%synergy
Breach the Multiverse
61%inclusion44 decks72 decks
55%synergy
Intellect Devourer
53%inclusion38 decks72 decks
52%synergy
Gisa, Glorious Resurrector
56%inclusion40 decks72 decks
51%synergy
Dauthi Voidwalker
65%inclusion47 decks72 decks
50%synergy
Nirkana Revenant
57%inclusion41 decks72 decks
46%synergy
Top Cards
Dark Ritual
86%inclusion62 decks72 decks
20%synergy
Crypt Ghast
85%inclusion61 decks72 decks
37%synergy
Jet Medallion
81%inclusion58 decks72 decks
19%synergy
Gray Merchant of Asphodel
72%inclusion52 decks72 decks
21%synergy
Reanimate
71%inclusion51 decks72 decks
31%synergy
Phyrexian Arena
56%inclusion40 decks72 decks
16%synergy
Feed the Swarm
54%inclusion39 decks72 decks
4%synergy
Sign in Blood
53%inclusion38 decks72 decks
17%synergy
Dread Presence
49%inclusion35 decks72 decks
34%synergy
The Darkness Crystal
47%inclusion27 decks57 decks
27%synergy
Game Changers
Opposition Agent
40%inclusion29 decks72 decks
31%synergy
Bolas's Citadel
38%inclusion27 decks72 decks
9%synergy
Demonic Tutor
26%inclusion19 decks72 decks
-1%synergy
Tergrid, God of Fright
22%inclusion16 decks72 decks
14%synergy
Necropotence
21%inclusion15 decks72 decks
6%synergy
Ancient Tomb
17%inclusion12 decks72 decks
5%synergy
Vampiric Tutor
8.3%inclusion6 decks72 decks
-13%synergy
The One Ring
5.6%inclusion4 decks72 decks
-4%synergy
Creatures
Solemn Simulacrum
46%inclusion33 decks72 decks
23%synergy
Geth, Lord of the Vault
44%inclusion32 decks72 decks
43%synergy
K'rrik, Son of Yawgmoth
43%inclusion31 decks72 decks
24%synergy
Magus of the Coffers
38%inclusion27 decks72 decks
31%synergy
Sepulchral Primordial
38%inclusion27 decks72 decks
35%synergy
Nashi, Moon Sage's Scion
36%inclusion26 decks72 decks
32%synergy
Valgavoth, Terror Eater
36%inclusion26 decks72 decks
31%synergy
Junktroller
35%inclusion25 decks72 decks
35%synergy
Thieving Varmint
35%inclusion25 decks72 decks
32%synergy
Gonti, Night Minister
34%inclusion23 decks68 decks
31%synergy
Gix, Yawgmoth Praetor
33%inclusion24 decks72 decks
28%synergy
Burnished Hart
32%inclusion23 decks72 decks
24%synergy
Black Cat, Cunning Thief
30%inclusion13 decks43 decks
29%synergy
Reito Sentinel
29%inclusion21 decks72 decks
29%synergy
Tinybones, the Pickpocket
28%inclusion20 decks72 decks
23%synergy
Crabomination
25%inclusion18 decks72 decks
24%synergy
Sheoldred, Whispering One
25%inclusion18 decks72 decks
13%synergy
Phyrexian Obliterator
24%inclusion17 decks72 decks
12%synergy
Bismuth Mindrender
22%inclusion16 decks72 decks
22%synergy
Morbid Opportunist
21%inclusion15 decks72 decks
-2%synergy
Plaguecrafter
19%inclusion14 decks72 decks
-1%synergy
Rakshasa Debaser
19%inclusion14 decks72 decks
19%synergy
Oblivion Sower
19%inclusion14 decks72 decks
19%synergy
Tinybones, Bauble Burglar
18%inclusion13 decks71 decks
15%synergy
Hoarding Broodlord
18%inclusion13 decks72 decks
14%synergy
Draugr Necromancer
18%inclusion13 decks72 decks
18%synergy
Lord of the Void
17%inclusion12 decks72 decks
15%synergy
Sheoldred
14%inclusion10 decks72 decks
8%synergy
Ancient Cellarspawn
14%inclusion10 decks72 decks
12%synergy
Accursed Marauder
14%inclusion10 decks72 decks
-7%synergy
Rev, Tithe Extractor
13%inclusion9 decks71 decks
11%synergy
Sheoldred, the Apocalypse
13%inclusion9 decks72 decks
-2%synergy
Braids, Arisen Nightmare
13%inclusion9 decks72 decks
-7%synergy
Author of Shadows
13%inclusion9 decks72 decks
12%synergy
Defiler of Flesh
11%inclusion8 decks72 decks
7%synergy
Keen Duelist
11%inclusion8 decks72 decks
10%synergy
Massacre Wurm
11%inclusion8 decks72 decks
-6%synergy
Chainer, Dementia Master
11%inclusion8 decks72 decks
6%synergy
Erebos, God of the Dead
10%inclusion7 decks72 decks
5%synergy
Wandering Archaic
10%inclusion7 decks72 decks
9%synergy
Lorcan, Warlock Collector
10%inclusion7 decks72 decks
9%synergy
Ancient Brass Dragon
10%inclusion7 decks72 decks
9%synergy
Abyssal Harvester
8.5%inclusion6 decks71 decks
5%synergy
Junji, the Midnight Sky
8.3%inclusion6 decks72 decks
3%synergy
Kheru Mind-Eater
8.3%inclusion6 decks72 decks
8%synergy
Nightmare Shepherd
8.3%inclusion6 decks72 decks
7%synergy
Massacre Girl
6.9%inclusion5 decks72 decks
0%synergy
Grim Hireling
6.9%inclusion5 decks72 decks
3%synergy
Fleshbag Marauder
6.9%inclusion5 decks72 decks
-9%synergy
Leaden Myr
6.9%inclusion5 decks72 decks
1%synergy
Instants
Defile
47%inclusion34 decks72 decks
10%synergy
Withering Torment
43%inclusion31 decks72 decks
12%synergy
Stinging Study
40%inclusion29 decks72 decks
38%synergy
Infernal Grasp
36%inclusion26 decks72 decks
11%synergy
Outrageous Robbery
35%inclusion25 decks72 decks
33%synergy
Soul Shatter
29%inclusion21 decks72 decks
17%synergy
Sudden Spoiling
28%inclusion20 decks72 decks
19%synergy
Darkness
26%inclusion19 decks72 decks
16%synergy
Baleful Mastery
26%inclusion19 decks72 decks
18%synergy
Deadly Rollick
25%inclusion18 decks72 decks
1%synergy
Go for the Throat
25%inclusion18 decks72 decks
2%synergy
Imp's Mischief
25%inclusion18 decks72 decks
0%synergy
Consuming Corruption
24%inclusion17 decks72 decks
8%synergy
Malakir Rebirth
22%inclusion16 decks72 decks
-1%synergy
Fell the Profane
21%inclusion15 decks72 decks
2%synergy
Grim Return
18%inclusion13 decks72 decks
17%synergy
Snuff Out
17%inclusion12 decks72 decks
4%synergy
The Spot's Portal
14%inclusion6 decks43 decks
14%synergy
Force of Despair
14%inclusion10 decks72 decks
6%synergy
Doom Blade
13%inclusion9 decks72 decks
5%synergy
Cabal Ritual
11%inclusion8 decks72 decks
-7%synergy
Thrilling Encore
10%inclusion7 decks72 decks
8%synergy
Withering Boon
10%inclusion7 decks72 decks
5%synergy
Hagra Mauling
8.3%inclusion6 decks72 decks
4%synergy
Deadly Dispute
8.3%inclusion6 decks72 decks
-17%synergy
Murder
8.3%inclusion6 decks72 decks
-2%synergy
Tragic Slip
8.3%inclusion6 decks72 decks
-12%synergy
Hero's Downfall
6.9%inclusion5 decks72 decks
0%synergy
Village Rites
6.9%inclusion5 decks72 decks
-18%synergy
Archenemy's Charm
6.0%inclusion3 decks50 decks
-3%synergy
Sheoldred's Edict
5.6%inclusion4 decks72 decks
-9%synergy
Culling the Weak
5.6%inclusion4 decks72 decks
-10%synergy
Sorceries
Night's Whisper
46%inclusion33 decks72 decks
21%synergy
Damnation
44%inclusion32 decks72 decks
24%synergy
Exsanguinate
40%inclusion29 decks72 decks
16%synergy
Rise of the Dark Realms
39%inclusion28 decks72 decks
26%synergy
Toxic Deluge
38%inclusion27 decks72 decks
1%synergy
Bubbling Muck
33%inclusion24 decks72 decks
18%synergy
Heartless Conscription
33%inclusion24 decks72 decks
32%synergy
Praetor's Grasp
32%inclusion23 decks72 decks
28%synergy
Dredge the Mire
29%inclusion21 decks72 decks
29%synergy
Cruelclaw's Heist
29%inclusion21 decks72 decks
27%synergy
Torment of Hailfire
25%inclusion18 decks72 decks
9%synergy
Mutilate
24%inclusion17 decks72 decks
6%synergy
Read the Bones
22%inclusion16 decks72 decks
5%synergy
Visions of Dread
17%inclusion12 decks72 decks
16%synergy
Victimize
17%inclusion12 decks72 decks
-10%synergy
Beacon of Unrest
17%inclusion12 decks72 decks
13%synergy
Blasphemous Edict
15%inclusion11 decks71 decks
-1%synergy
Grim Tutor
14%inclusion10 decks72 decks
2%synergy
Syphon Mind
14%inclusion10 decks72 decks
1%synergy
Diabolic Tutor
13%inclusion9 decks72 decks
-2%synergy
Shadow of the Enemy
13%inclusion9 decks72 decks
12%synergy
Blood Money
13%inclusion9 decks72 decks
9%synergy
Insatiable Avarice
13%inclusion9 decks72 decks
1%synergy
Decree of Pain
13%inclusion9 decks72 decks
7%synergy
Necromantic Selection
13%inclusion9 decks72 decks
11%synergy
Profane Transfusion
11%inclusion8 decks72 decks
10%synergy
Xander's Pact
11%inclusion8 decks72 decks
11%synergy
Profane Tutor
10%inclusion7 decks72 decks
5%synergy
Petty Larceny
10%inclusion7 decks72 decks
9%synergy
In Garruk's Wake
10%inclusion7 decks72 decks
6%synergy
Come Back Wrong
8.3%inclusion6 decks72 decks
6%synergy
Psychotic Episode
6.9%inclusion5 decks72 decks
7%synergy
Predators' Hour
6.9%inclusion5 decks72 decks
6%synergy
Yawgmoth's Vile Offering
6.9%inclusion5 decks72 decks
6%synergy
Ambition's Cost
6.9%inclusion5 decks72 decks
4%synergy
Dead of Winter
6.9%inclusion5 decks72 decks
6%synergy
Extinguish All Hope
6.9%inclusion5 decks72 decks
7%synergy
Sanguimancy
6.9%inclusion5 decks72 decks
7%synergy
Black Sun's Zenith
5.6%inclusion4 decks72 decks
0%synergy
Diabolic Intent
5.6%inclusion4 decks72 decks
-9%synergy
Repay in Kind
5.6%inclusion4 decks72 decks
4%synergy
Blood on the Snow
5.6%inclusion4 decks72 decks
4%synergy
Agadeem's Awakening
5.6%inclusion4 decks72 decks
-2%synergy
Deadly Tempest
5.6%inclusion4 decks72 decks
3%synergy
Ashen Powder
5.6%inclusion4 decks72 decks
5%synergy
Worst Fears
5.6%inclusion4 decks72 decks
5%synergy
Utility Artifacts
Staff of Eden, Vault's Key
35%inclusion25 decks72 decks
34%synergy
Lightning Greaves
32%inclusion23 decks72 decks
-2%synergy
Bontu's Monument
31%inclusion22 decks72 decks
2%synergy
Wayfarer's Bauble
28%inclusion20 decks72 decks
12%synergy
Reito Lantern
28%inclusion20 decks72 decks
28%synergy
Swiftfoot Boots
26%inclusion19 decks72 decks
-5%synergy
Expedition Map
25%inclusion18 decks72 decks
13%synergy
Whip of Erebos
21%inclusion15 decks72 decks
10%synergy
Realmbreaker, the Invasion Tree
15%inclusion11 decks72 decks
14%synergy
Portal to Phyrexia
14%inclusion10 decks72 decks
12%synergy
Strionic Resonator
14%inclusion10 decks72 decks
12%synergy
Chaos Wand
10%inclusion7 decks72 decks
9%synergy
Nautiloid Ship
10%inclusion7 decks72 decks
10%synergy
Vedalken Orrery
8.3%inclusion6 decks72 decks
8%synergy
Mindcrank
8.3%inclusion6 decks72 decks
3%synergy
Dream-Thief's Bandana
5.6%inclusion4 decks72 decks
5%synergy
Mask of Griselbrand
5.6%inclusion4 decks72 decks
2%synergy
Commander's Plate
5.6%inclusion4 decks72 decks
0%synergy
Fishing Gear
5.0%inclusion2 decks40 decks
5%synergy
Enchantments
Court of Locthwain
47%inclusion34 decks72 decks
45%synergy
Animate Dead
47%inclusion34 decks72 decks
30%synergy
Grave Betrayal
39%inclusion28 decks72 decks
36%synergy
Black Market
38%inclusion27 decks72 decks
16%synergy
Dead Man's Chest
38%inclusion27 decks72 decks
37%synergy
Black Market Connections
22%inclusion16 decks72 decks
-2%synergy
No Mercy
22%inclusion16 decks72 decks
15%synergy
Virtue of Persistence
22%inclusion16 decks72 decks
17%synergy
Meathook Massacre II
18%inclusion13 decks72 decks
12%synergy
Necromancy
14%inclusion10 decks72 decks
8%synergy
The Eldest Reborn
13%inclusion9 decks72 decks
9%synergy
Protection Racket
13%inclusion9 decks72 decks
12%synergy
Oubliette
13%inclusion9 decks72 decks
10%synergy
Heartless Summoning
13%inclusion9 decks72 decks
8%synergy
Minion's Return
11%inclusion8 decks72 decks
10%synergy
Dance of the Dead
10%inclusion7 decks72 decks
6%synergy
Exquisite Blood
10%inclusion7 decks72 decks
-3%synergy
The Meathook Massacre
8.3%inclusion6 decks72 decks
-9%synergy
The Cruelty of Gix
6.9%inclusion5 decks72 decks
5%synergy
Parasitic Impetus
6.9%inclusion5 decks72 decks
6%synergy
Hedonist's Trove
6.9%inclusion5 decks72 decks
7%synergy
Kaya's Ghostform
6.9%inclusion5 decks72 decks
-3%synergy
Greed
5.6%inclusion4 decks72 decks
-1%synergy
Underworld Dreams
5.6%inclusion4 decks72 decks
-1%synergy
Bloodchief Ascension
5.6%inclusion4 decks72 decks
-4%synergy
Planeswalkers
Liliana of the Dark Realms
39%inclusion28 decks72 decks
25%synergy
Liliana of the Veil
5.6%inclusion4 decks72 decks
-1%synergy
Liliana Vess
5.6%inclusion4 decks72 decks
2%synergy
Tevesh Szat, Doom of Fools
5.6%inclusion4 decks72 decks
2%synergy
Utility Lands
Cabal Coffers
88%inclusion63 decks72 decks
33%synergy
Cabal Stronghold
74%inclusion53 decks72 decks
39%synergy
Urborg, Tomb of Yawgmoth
60%inclusion43 decks72 decks
22%synergy
Nykthos, Shrine to Nyx
50%inclusion36 decks72 decks
20%synergy
Bojuka Bog
47%inclusion34 decks72 decks
0%synergy
Reliquary Tower
36%inclusion26 decks72 decks
6%synergy
Castle Locthwain
35%inclusion25 decks72 decks
18%synergy
Witch's Cottage
31%inclusion22 decks72 decks
6%synergy
War Room
29%inclusion21 decks72 decks
13%synergy
Takenuma, Abandoned Mire
25%inclusion18 decks72 decks
9%synergy
Thespian's Stage
25%inclusion18 decks72 decks
20%synergy
Temple of the False God
24%inclusion17 decks72 decks
16%synergy
Phyrexian Tower
22%inclusion16 decks72 decks
-3%synergy
Command Beacon
18%inclusion13 decks72 decks
10%synergy
Rogue's Passage
15%inclusion11 decks72 decks
-4%synergy
Maze of Ith
13%inclusion9 decks72 decks
9%synergy
Deserted Temple
13%inclusion9 decks72 decks
8%synergy
Havengul Laboratory
13%inclusion9 decks72 decks
12%synergy
Mortuary Mire
11%inclusion8 decks72 decks
-2%synergy
Barren Moor
11%inclusion8 decks72 decks
1%synergy
Crypt of Agadeem
11%inclusion8 decks72 decks
0%synergy
Shizo, Death's Storehouse
10%inclusion7 decks72 decks
0%synergy
Susur Secundi, Void Altar
8.0%inclusion4 decks50 decks
0%synergy
Memorial to Folly
6.9%inclusion5 decks72 decks
4%synergy
Vesuva
6.9%inclusion5 decks72 decks
4%synergy
Emergence Zone
6.9%inclusion5 decks72 decks
4%synergy
Geier Reach Sanitarium
6.9%inclusion5 decks72 decks
-4%synergy
Barad-dûr
5.6%inclusion4 decks72 decks
2%synergy
Dark Depths
5.6%inclusion4 decks72 decks
5%synergy
Mana Artifacts
Sol Ring
96%inclusion69 decks72 decks
10%synergy
Arcane Signet
68%inclusion49 decks72 decks
6%synergy
Thran Dynamo
38%inclusion27 decks72 decks
32%synergy
Nyx Lotus
38%inclusion27 decks72 decks
31%synergy
Thought Vessel
36%inclusion26 decks72 decks
10%synergy
Mind Stone
35%inclusion25 decks72 decks
5%synergy
Charcoal Diamond
31%inclusion22 decks72 decks
8%synergy
Fellwar Stone
26%inclusion19 decks72 decks
12%synergy
Caged Sun
25%inclusion18 decks72 decks
13%synergy
Gilded Lotus
19%inclusion14 decks72 decks
14%synergy
Sceptre of Eternal Glory
19%inclusion14 decks72 decks
11%synergy
Throne of Eldraine
17%inclusion12 decks72 decks
7%synergy
Commander's Sphere
15%inclusion11 decks72 decks
7%synergy
Vessel of Endless Rest
15%inclusion11 decks72 decks
15%synergy
Everflowing Chalice
13%inclusion9 decks72 decks
7%synergy
Worn Powerstone
13%inclusion9 decks72 decks
8%synergy
Extraplanar Lens
11%inclusion8 decks72 decks
6%synergy
The Soul Stone
10%inclusion5 decks49 decks
-4%synergy
Gauntlet of Power
8.3%inclusion6 decks72 decks
5%synergy
Hedron Archive
8.3%inclusion6 decks72 decks
5%synergy
Lands
Swamp
85%inclusion61 decks72 decks
-10%synergy
Myriad Landscape
47%inclusion34 decks72 decks
21%synergy
Malakir Rebirth
22%inclusion16 decks72 decks
-1%synergy
Fell the Profane
21%inclusion15 decks72 decks
2%synergy
Urza's Cave
18%inclusion13 decks72 decks
10%synergy
Snow-Covered Swamp
15%inclusion11 decks72 decks
9%synergy
Hagra Mauling
8.3%inclusion6 decks72 decks
4%synergy
Demolition Field
6.9%inclusion5 decks72 decks
2%synergy
Command Tower
5.6%inclusion4 decks72 decks
0%synergy
Exotic Orchard
5.6%inclusion4 decks72 decks
4%synergy
Agadeem's Awakening
5.6%inclusion4 decks72 decks
-2%synergy
Boggart Trawler
5.6%inclusion4 decks72 decks
-3%synergy
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