Mono-Black Horrors
Arvinox, the Mind Flail
15 decks
K'rrik, Son of Yawgmoth
7 decks
Greel, Mind Raker
3 decks
Gollum, Scheming Guide
2 decks
Tinybones, Trinket Thief
2 decks
Sheoldred, Whispering One
1 decks
Mikaeus, the Unhallowed
1 decks
Horobi, Death's Wail
1 decks
Tergrid, God of Fright
1 decks
Massacre Girl, Known Killer
1 decks
Drivnod, Carnage Dominus
1 decks
Sauron, the Necromancer
1 decks
New Cards
Ancient Cellarspawn
75% of 4 decks
+61% synergy
Withering Torment
75% of 4 decks
+13% synergy
High Synergy Cards
Ravenous Chupacabra
81% of 36 decks
+74% synergy
Uchuulon
71% of 35 decks
+71% synergy
Brainstealer Dragon
63% of 35 decks
+61% synergy
Sewer Nemesis
61% of 36 decks
+60% synergy
Elder Brain
63% of 35 decks
+59% synergy
Defiler of Flesh
66% of 35 decks
+58% synergy
Chupacabra Echo
53% of 19 decks
+52% synergy
Starving Revenant
53% of 15 decks
+51% synergy
Intellect Devourer
51% of 35 decks
+51% synergy
Phyrexian Rager
50% of 36 decks
+49% synergy
Top Cards
Dark Ritual
56% of 36 decks
-10% synergy
Phyrexian Obliterator
50% of 36 decks
+39% synergy
Yarok's Fenlurker
47% of 36 decks
+46% synergy
Time Reaper
45% of 20 decks
+45% synergy
Defile
44% of 36 decks
+3% synergy
Slum Reaper
42% of 36 decks
+41% synergy
Nighthowler
42% of 36 decks
+41% synergy
Sign in Blood
42% of 36 decks
+2% synergy
Gluttonous Slug
39% of 36 decks
+39% synergy
Dark Hatchling
39% of 36 decks
+39% synergy
Creatures
Guiltfeeder
39% of 36 decks
+39% synergy
Hell's Caretaker
39% of 36 decks
+38% synergy
Doom Weaver
37% of 35 decks
+37% synergy
Mindslicer
36% of 36 decks
+31% synergy
Vashta Nerada
35% of 20 decks
+33% synergy
Dusk Mangler
34% of 35 decks
+34% synergy
Blistergrub
31% of 36 decks
+30% synergy
Woe Strider
31% of 36 decks
+26% synergy
K'rrik, Son of Yawgmoth
31% of 36 decks
+14% synergy
Mage Hunter
29% of 35 decks
+28% synergy
Thought Gorger
28% of 36 decks
+28% synergy
Dreadwurm
28% of 36 decks
+28% synergy
Hypnox
28% of 36 decks
+27% synergy
Abyssal Gorestalker
26% of 19 decks
+26% synergy
Concealing Curtains
26% of 35 decks
+25% synergy
Gloom Sower
25% of 36 decks
+25% synergy
Faceless Butcher
25% of 36 decks
+25% synergy
Netherborn Phalanx
25% of 36 decks
+25% synergy
Plague Spitter
25% of 36 decks
+24% synergy
Mesmeric Fiend
22% of 36 decks
+22% synergy
Cabal Therapist
22% of 36 decks
+22% synergy
Sauron, the Necromancer
22% of 27 decks
+22% synergy
Abyssal Gatekeeper
22% of 36 decks
+20% synergy
Solemn Simulacrum
22% of 36 decks
-4% synergy
Ravenous Gigamole
22% of 32 decks
+22% synergy
Gurgling Anointer
22% of 32 decks
+21% synergy
Arvinox, the Mind Flail
20% of 35 decks
+19% synergy
Scrounger of Souls
19% of 36 decks
+19% synergy
Void Beckoner
19% of 36 decks
+19% synergy
Phyrexian Revoker
19% of 36 decks
+19% synergy
Hunted Horror
19% of 36 decks
+19% synergy
Dauthi Horror
19% of 36 decks
+19% synergy
Fleshwrither
19% of 36 decks
+17% synergy
Dread Presence
19% of 36 decks
+2% synergy
Carrion Locust
19% of 32 decks
+19% synergy
Vebulid
17% of 36 decks
+17% synergy
Urborg Stalker
17% of 36 decks
+17% synergy
Nihilith
17% of 36 decks
+17% synergy
Delraich
17% of 36 decks
+17% synergy
Phantasmagorian
17% of 36 decks
+17% synergy
First-Sphere Gargantua
17% of 36 decks
+17% synergy
Infectious Horror
17% of 36 decks
+17% synergy
Voldaren Pariah
17% of 36 decks
+16% synergy
Sinuous Vermin
17% of 36 decks
+16% synergy
Fume Spitter
17% of 36 decks
+15% synergy
Laquatus's Champion
14% of 36 decks
+14% synergy
Crypt Lurker
14% of 36 decks
+14% synergy
Dread Slaver
14% of 36 decks
+14% synergy
Sepulchral Primordial
14% of 36 decks
+11% synergy
Psychosis Crawler
14% of 36 decks
+8% synergy
Instants
Consuming Corruption
38% of 8 decks
+10% synergy
Not Dead After All
32% of 22 decks
+19% synergy
Spoils of Blood
25% of 36 decks
+24% synergy
Black Sun's Twilight
21% of 29 decks
+14% synergy
Soul Shatter
19% of 36 decks
+7% synergy
Infernal Grasp
17% of 35 decks
-11% synergy
Murder
17% of 36 decks
+7% synergy
Imp's Mischief
14% of 36 decks
-4% synergy
Grasp of Darkness
11% of 36 decks
+8% synergy
Withering Boon
11% of 36 decks
+6% synergy
Tendrils of Corruption
11% of 36 decks
+6% synergy
Darkness
11% of 36 decks
+3% synergy
Hero's Downfall
11% of 36 decks
+3% synergy
Dismember
11% of 36 decks
-0% synergy
Malakir Rebirth
11% of 36 decks
-10% synergy
Ashnod's Intervention
9% of 32 decks
+7% synergy
Nurgle's Conscription
9% of 33 decks
+8% synergy
Fake Your Own Death
9% of 35 decks
+5% synergy
Feign Death
9% of 35 decks
+2% synergy
Baleful Mastery
9% of 35 decks
-4% synergy
Nightmare's Thirst
8% of 36 decks
+8% synergy
Alchemist's Gift
8% of 36 decks
+8% synergy
Fated Return
8% of 36 decks
+8% synergy
Terror
8% of 36 decks
+7% synergy
Raise the Draugr
8% of 36 decks
+7% synergy
Crypt Incursion
8% of 36 decks
+5% synergy
Force of Despair
8% of 36 decks
-0% synergy
Sudden Spoiling
8% of 36 decks
-2% synergy
Deadly Rollick
8% of 36 decks
-12% synergy
Village Rites
8% of 36 decks
-16% synergy
Sorceries
Read the Bones
36% of 36 decks
+14% synergy
Crippling Fear
28% of 36 decks
+23% synergy
Syphon Mind
28% of 36 decks
+13% synergy
Reanimate
28% of 36 decks
-5% synergy
Profane Transfusion
25% of 36 decks
+23% synergy
Dread Return
25% of 36 decks
+12% synergy
Feed the Swarm
25% of 36 decks
-30% synergy
Finale of Eternity
22% of 36 decks
+21% synergy
Diabolic Tutor
19% of 36 decks
+3% synergy
Damnation
19% of 36 decks
-4% synergy
Toxic Deluge
19% of 36 decks
-14% synergy
Visions of Dread
17% of 35 decks
+17% synergy
Hymn to Tourach
17% of 36 decks
+14% synergy
Ancient Craving
17% of 36 decks
+13% synergy
Exsanguinate
17% of 36 decks
-5% synergy
Mutilate
17% of 36 decks
-8% synergy
Breach the Multiverse
15% of 27 decks
+6% synergy
Haunting Voyage
14% of 36 decks
+11% synergy
Victimize
14% of 36 decks
-8% synergy
Night's Whisper
14% of 36 decks
-10% synergy
Claim the Precious
12% of 25 decks
+11% synergy
Invoke Despair
11% of 35 decks
+7% synergy
Dredge the Mire
11% of 36 decks
+10% synergy
Necromantic Selection
11% of 36 decks
+9% synergy
Black Sun's Zenith
11% of 36 decks
+5% synergy
Bubbling Muck
11% of 36 decks
-5% synergy
Demonic Tutor
11% of 36 decks
-20% synergy
Mind Shatter
8% of 36 decks
+8% synergy
Infernal Offering
8% of 36 decks
+8% synergy
Blood on the Snow
8% of 36 decks
+7% synergy
Beacon of Unrest
8% of 36 decks
+2% synergy
Decree of Pain
8% of 36 decks
+2% synergy
Patriarch's Bidding
8% of 36 decks
+2% synergy
Duress
8% of 36 decks
+2% synergy
Dark Deal
8% of 36 decks
-5% synergy
Torment of Hailfire
8% of 36 decks
-10% synergy
Utility Artifacts
Herald's Horn
33% of 36 decks
+27% synergy
Jet Medallion
33% of 36 decks
-15% synergy
Bontu's Monument
22% of 36 decks
-6% synergy
Swiftfoot Boots
22% of 36 decks
-10% synergy
Vanquisher's Banner
17% of 36 decks
+11% synergy
Lightning Greaves
17% of 36 decks
-16% synergy
Icon of Ancestry
14% of 36 decks
+12% synergy
Whip of Erebos
14% of 36 decks
+2% synergy
Urza's Incubator
11% of 36 decks
+10% synergy
Staff of the Death Magus
11% of 36 decks
+7% synergy
Wayfarer's Bauble
11% of 36 decks
-9% synergy
Armillary Sphere
8% of 36 decks
+8% synergy
Helm of the Host
8% of 36 decks
+7% synergy
Darksteel Plate
8% of 36 decks
+6% synergy
Anvil of Bogardan
8% of 36 decks
+6% synergy
Sword of the Animist
8% of 36 decks
+4% synergy
Bolas's Citadel
8% of 36 decks
-25% synergy
Enchantments
Phyrexian Arena
36% of 36 decks
-2% synergy
Curse of Leeches
29% of 35 decks
+28% synergy
Court of Locthwain
20% of 20 decks
+18% synergy
The Meathook Massacre
20% of 35 decks
+5% synergy
Bad Moon
19% of 36 decks
+15% synergy
The Eldest Reborn
19% of 36 decks
+14% synergy
Exquisite Blood
19% of 36 decks
+6% synergy
Grave Betrayal
17% of 36 decks
+13% synergy
Underworld Dreams
17% of 36 decks
+8% synergy
Greed
17% of 36 decks
+6% synergy
Sanguine Bond
17% of 36 decks
+3% synergy
Black Market
14% of 36 decks
-8% synergy
Virtue of Persistence
14% of 22 decks
+5% synergy
Oversold Cemetery
11% of 36 decks
+6% synergy
Painful Quandary
11% of 36 decks
+1% synergy
Cunning Rhetoric
9% of 35 decks
+7% synergy
Black Market Connections
9% of 35 decks
-11% synergy
Hedonist's Trove
8% of 36 decks
+8% synergy
Dead Man's Chest
8% of 36 decks
+8% synergy
Creeping Dread
8% of 36 decks
+7% synergy
Eternal Thirst
8% of 36 decks
+6% synergy
Necrogen Mists
8% of 36 decks
+3% synergy
Font of Agonies
8% of 36 decks
+2% synergy
No Mercy
8% of 36 decks
+2% synergy
Oppression
8% of 36 decks
+1% synergy
Bloodchief Ascension
8% of 36 decks
-1% synergy
Phyrexian Reclamation
8% of 36 decks
-4% synergy
Necropotence
8% of 36 decks
-8% synergy
Animate Dead
8% of 36 decks
-11% synergy
Utility Lands
Bojuka Bog
58% of 36 decks
+11% synergy
Cabal Coffers
50% of 36 decks
-7% synergy
Hostile Hostel
40% of 35 decks
+39% synergy
Cabal Stronghold
36% of 36 decks
-4% synergy
Temple of the False God
28% of 36 decks
+20% synergy
Rogue's Passage
28% of 36 decks
+12% synergy
Witch's Cottage
28% of 36 decks
+3% synergy
Reliquary Tower
25% of 36 decks
-8% synergy
Nykthos, Shrine to Nyx
22% of 36 decks
-8% synergy
Urborg, Tomb of Yawgmoth
22% of 36 decks
-17% synergy
Castle Locthwain
19% of 36 decks
-2% synergy
Takenuma, Abandoned Mire
14% of 35 decks
-4% synergy
Ghost Quarter
11% of 36 decks
+8% synergy
Mortuary Mire
11% of 36 decks
-3% synergy
Leechridden Swamp
8% of 36 decks
+6% synergy
Vault of Whispers
8% of 36 decks
+1% synergy
Geier Reach Sanitarium
8% of 36 decks
-5% synergy
Phyrexian Tower
8% of 36 decks
-12% synergy
Mana Artifacts
Sol Ring
72% of 36 decks
-15% synergy
Arcane Signet
56% of 36 decks
-8% synergy
Mind Stone
36% of 36 decks
+0% synergy
Thought Vessel
31% of 36 decks
+2% synergy
Throne of Eldraine
30% of 20 decks
+13% synergy
Commander's Sphere
28% of 36 decks
+16% synergy
Caged Sun
28% of 36 decks
+11% synergy
Charcoal Diamond
25% of 36 decks
-1% synergy
Gauntlet of Power
19% of 36 decks
+15% synergy
Fellwar Stone
17% of 36 decks
+2% synergy
Sceptre of Eternal Glory
15% of 33 decks
+2% synergy
Thran Dynamo
11% of 36 decks
+4% synergy
Gilded Lotus
11% of 36 decks
+4% synergy
Coveted Jewel
8% of 36 decks
+7% synergy
Worn Powerstone
8% of 36 decks
+4% synergy
Hedron Archive
8% of 36 decks
+3% synergy
Heraldic Banner
8% of 36 decks
+2% synergy
Lands
Myriad Landscape
42% of 36 decks
+11% synergy
Path of Ancestry
17% of 36 decks
+11% synergy
Cavern of Souls
11% of 36 decks
+5% synergy
Ash Barrens
8% of 36 decks
+7% synergy
Command Tower
8% of 36 decks
+4% synergy