Mono-Black Horrors
Mono-Black36 decks
High Synergy Cards
Uchuulon
71% of 35 decks
+71% synergy
Ravenous Chupacabra
78% of 36 decks
+71% synergy
Sewer Nemesis
64% of 36 decks
+63% synergy
Brainstealer Dragon
63% of 35 decks
+61% synergy
Elder Brain
63% of 35 decks
+59% synergy
Defiler of Flesh
66% of 35 decks
+58% synergy
Chupacabra Echo
56% of 18 decks
+54% synergy
Phyrexian Rager
50% of 36 decks
+49% synergy
Intellect Devourer
49% of 35 decks
+48% synergy
Time Reaper
47% of 19 decks
+47% synergy
Top Cards
Dark Ritual
53% of 36 decks
-13% synergy
Yarok's Fenlurker
47% of 36 decks
+46% synergy
Phyrexian Obliterator
47% of 36 decks
+37% synergy
Gluttonous Slug
42% of 36 decks
+42% synergy
Slum Reaper
42% of 36 decks
+41% synergy
Nighthowler
42% of 36 decks
+41% synergy
Defile
42% of 36 decks
-0% synergy
Dark Hatchling
39% of 36 decks
+39% synergy
Guiltfeeder
39% of 36 decks
+39% synergy
Hell's Caretaker
39% of 36 decks
+38% synergy
Creatures
Starving Revenant
39% of 18 decks
+37% synergy
Doom Weaver
37% of 35 decks
+37% synergy
Mindslicer
36% of 36 decks
+31% synergy
Blistergrub
33% of 36 decks
+33% synergy
Vashta Nerada
32% of 19 decks
+30% synergy
Dusk Mangler
31% of 35 decks
+31% synergy
Dreadwurm
31% of 36 decks
+30% synergy
Woe Strider
31% of 36 decks
+26% synergy
Mage Hunter
29% of 35 decks
+28% synergy
Thought Gorger
28% of 36 decks
+28% synergy
Gloom Sower
28% of 36 decks
+28% synergy
Faceless Butcher
28% of 36 decks
+28% synergy
Hypnox
28% of 36 decks
+27% synergy
Netherborn Phalanx
28% of 36 decks
+27% synergy
Abyssal Gorestalker
28% of 18 decks
+27% synergy
K'rrik, Son of Yawgmoth
28% of 36 decks
+12% synergy
Concealing Curtains
26% of 35 decks
+25% synergy
Ravenous Gigamole
25% of 32 decks
+25% synergy
Plague Spitter
25% of 36 decks
+24% synergy
Gurgling Anointer
25% of 32 decks
+24% synergy
Abyssal Gatekeeper
25% of 36 decks
+23% synergy
Arvinox, the Mind Flail
23% of 35 decks
+22% synergy
Mesmeric Fiend
22% of 36 decks
+22% synergy
Cabal Therapist
22% of 36 decks
+22% synergy
Carrion Locust
22% of 32 decks
+22% synergy
Scrounger of Souls
19% of 36 decks
+19% synergy
Nihilith
19% of 36 decks
+19% synergy
First-Sphere Gargantua
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
Solemn Simulacrum
19% of 36 decks
-7% synergy
Sauron, the Necromancer
19% of 26 decks
+19% synergy
Vebulid
17% of 36 decks
+17% synergy
Urborg Stalker
17% of 36 decks
+17% synergy
Delraich
17% of 36 decks
+17% synergy
Phantasmagorian
17% of 36 decks
+17% synergy
Infectious Horror
17% of 36 decks
+17% synergy
Dread Slaver
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
Dread Presence
17% of 36 decks
-1% synergy
Laquatus's Champion
14% of 36 decks
+14% synergy
Crypt Lurker
14% of 36 decks
+14% synergy
Psychosis Crawler
14% of 36 decks
+8% synergy
Gollum, Obsessed Stalker
13% of 23 decks
+12% synergy
Gollum, Scheming Guide
12% of 24 decks
+12% synergy
Instants
Not Dead After All
33% of 21 decks
+21% synergy
Spoils of Blood
28% of 36 decks
+27% synergy
Black Sun's Twilight
21% of 28 decks
+14% synergy
Murder
19% of 36 decks
+10% synergy
Soul Shatter
19% of 36 decks
+7% synergy
Infernal Grasp
17% of 35 decks
-11% synergy
Imp's Mischief
14% of 36 decks
-4% synergy
Malakir Rebirth
14% of 36 decks
-8% synergy
Ashnod's Intervention
12% of 32 decks
+10% synergy
Baleful Mastery
11% of 35 decks
-1% 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
Nurgle's Conscription
9% of 33 decks
+8% synergy
Fake Your Own Death
9% of 35 decks
+6% synergy
Feign Death
9% of 35 decks
+2% synergy
Nightmare's Thirst
8% of 36 decks
+8% synergy
Alchemist's Gift
8% of 36 decks
+8% synergy
Oblivion's Hunger
8% of 36 decks
+8% synergy
Fated Return
8% of 36 decks
+8% synergy
Dash Hopes
8% of 36 decks
+7% 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
Village Rites
8% of 36 decks
-16% synergy
Sorceries
Sign in Blood
39% of 36 decks
-1% synergy
Read the Bones
36% of 36 decks
+13% synergy
Crippling Fear
31% of 36 decks
+26% 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
+11% 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
Mutilate
17% of 36 decks
-8% synergy
Haunting Voyage
14% of 36 decks
+11% synergy
Exsanguinate
14% of 36 decks
-8% synergy
Victimize
14% of 36 decks
-8% synergy
Night's Whisper
14% of 36 decks
-10% synergy
Claim the Precious
12% of 24 decks
+11% synergy
Breach the Multiverse
12% of 26 decks
+3% synergy
Invoke Despair
11% of 35 decks
+7% synergy
Necromantic Selection
11% of 36 decks
+9% synergy
Black Sun's Zenith
11% of 36 decks
+5% synergy
Decree of Pain
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
Dredge the Mire
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
Patriarch's Bidding
8% of 36 decks
+2% synergy
Duress
8% of 36 decks
+2% synergy
Unearth
8% of 36 decks
+1% synergy
Dark Deal
8% of 36 decks
-5% synergy
Utility Artifacts
Herald's Horn
33% of 36 decks
+27% synergy
Jet Medallion
31% of 36 decks
-17% synergy
Swiftfoot Boots
22% of 36 decks
-10% synergy
Bontu's Monument
19% of 36 decks
-9% synergy
Lightning Greaves
19% of 36 decks
-14% synergy
Vanquisher's Banner
17% of 36 decks
+11% 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
Darksteel Plate
11% of 36 decks
+9% synergy
Staff of the Death Magus
11% of 36 decks
+7% synergy
Wayfarer's Bauble
11% of 36 decks
-9% synergy
Bolas's Citadel
11% of 36 decks
-23% synergy
Armillary Sphere
8% of 36 decks
+8% synergy
Helm of the Host
8% of 36 decks
+7% synergy
Anvil of Bogardan
8% of 36 decks
+6% synergy
Sword of the Animist
8% of 36 decks
+4% synergy
Enchantments
Phyrexian Arena
33% of 36 decks
-5% synergy
Curse of Leeches
29% of 35 decks
+28% 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
Underworld Dreams
17% of 36 decks
+8% synergy
Greed
17% of 36 decks
+6% synergy
Sanguine Bond
17% of 36 decks
+3% synergy
Court of Locthwain
16% of 19 decks
+14% synergy
Grave Betrayal
14% of 36 decks
+10% synergy
Black Market
14% of 36 decks
-8% synergy
Oversold Cemetery
11% of 36 decks
+6% synergy
Painful Quandary
11% of 36 decks
+1% synergy
Hedonist's Trove
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
Utility Lands
Bojuka Bog
56% of 36 decks
+9% synergy
Cabal Coffers
47% of 36 decks
-10% synergy
Hostile Hostel
40% of 35 decks
+39% synergy
Cabal Stronghold
33% of 36 decks
-7% synergy
Temple of the False God
28% of 36 decks
+20% synergy
Witch's Cottage
28% of 36 decks
+3% synergy
Rogue's Passage
25% of 36 decks
+9% synergy
Reliquary Tower
22% of 36 decks
-11% synergy
Castle Locthwain
19% of 36 decks
-2% synergy
Nykthos, Shrine to Nyx
19% of 36 decks
-11% synergy
Urborg, Tomb of Yawgmoth
19% of 36 decks
-20% synergy
Takenuma, Abandoned Mire
11% of 35 decks
-7% synergy
Ghost Quarter
11% of 36 decks
+8% synergy
Mortuary Mire
11% of 36 decks
-2% 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
53% of 36 decks
-11% synergy
Mind Stone
36% of 36 decks
-0% synergy
Commander's Sphere
31% of 36 decks
+18% synergy
Thought Vessel
28% of 36 decks
-1% synergy
Throne of Eldraine
26% of 19 decks
+9% synergy
Caged Sun
25% of 36 decks
+8% 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
12% 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
39% of 36 decks
+9% 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