Roiling Horror (Card)
Roiling Horror
In 228 decks
0% of 2036725 decks
New Commanders (1)
Obeka, Splitter of Seconds
0.25% of 5137 decks
13 decks
Top Commanders (2)
Nethroi, Apex of Death
0.55% of 5476 decks
30 decks
Captain N'ghathrod
0.11% of 12779 decks
14 decks
New Cards (1)
Laughing Jasper Flint
50% of 8 decks
+48% synergy
High Synergy Cards (10)
Dinosaurs on a Spaceship
67% of 9 decks
+66% synergy
Jhoira of the Ghitu
57% of 44 decks
+57% synergy
The Tenth Doctor
57% of 23 decks
+56% synergy
Watcher of Hours
50% of 20 decks
+49% synergy
Star Whale
47% of 30 decks
+46% synergy
Judoon Enforcers
44% of 9 decks
+44% synergy
Arc Blade
44% of 68 decks
+44% synergy
Rousing Refrain
45% of 65 decks
+44% synergy
Aftermath Analyst
43% of 14 decks
+41% synergy
Greater Gargadon
38% of 68 decks
+38% synergy
Top Cards (10)
Cultivate
40% of 80 decks
+18% synergy
Ecstatic Beauty
38% of 32 decks
+37% synergy
Inspiring Refrain
37% of 82 decks
+36% synergy
Swords to Plowshares
35% of 99 decks
+7% synergy
Shivan Sand-Mage
35% of 68 decks
+35% synergy
Shivan Meteor
35% of 68 decks
+35% synergy
Aeon Chronicler
35% of 91 decks
+35% synergy
Deep-Sea Kraken
34% of 91 decks
+34% synergy
Rift Bolt
32% of 68 decks
+32% synergy
Timecrafting
32% of 68 decks
+32% synergy
Creatures (50)
Detritivore
31% of 68 decks
+31% synergy
Gargadon
31% of 65 decks
+31% synergy
Rift Elemental
29% of 68 decks
+29% synergy
Faeburrow Elder
29% of 55 decks
+26% synergy
Alaundo the Seer
29% of 14 decks
+29% synergy
Gemrazer
28% of 71 decks
+27% synergy
Sibylline Soothsayer
28% of 32 decks
+28% synergy
Phantom Nishoba
28% of 57 decks
+28% synergy
Consuming Aberration
28% of 90 decks
+27% synergy
Sakura-Tribe Elder
28% of 80 decks
+18% synergy
Nemesis of Reason
26% of 90 decks
+25% synergy
Zellix, Sanity Flayer
25% of 71 decks
+24% synergy
Sinister Concierge
25% of 75 decks
+25% synergy
Pardic Dragon
25% of 68 decks
+25% synergy
Ith, High Arcanist
24% of 33 decks
+24% synergy
Veiling Oddity
24% of 91 decks
+24% synergy
Grell Philosopher
24% of 71 decks
+24% synergy
Skull Prophet
24% of 71 decks
+23% synergy
Faldorn, Dread Wolf Herald
23% of 13 decks
+23% synergy
Boneyard Lurker
23% of 71 decks
+22% synergy
Nyx Weaver
22% of 80 decks
+22% synergy
Polukranos, Unchained
21% of 71 decks
+21% synergy
The Ninth Doctor
21% of 24 decks
+20% synergy
Wild-Magic Sorcerer
21% of 63 decks
+19% synergy
Old Stickfingers
21% of 68 decks
+20% synergy
Sludge Monster
21% of 78 decks
+20% synergy
Nihilith
20% of 227 decks
+20% synergy
Thing in the Ice
20% of 89 decks
+20% synergy
Time Beetle
20% of 30 decks
+20% synergy
Satyr Wayfinder
20% of 80 decks
+19% synergy
Elas il-Kor, Sadistic Pilgrim
20% of 70 decks
+17% synergy
Birds of Paradise
20% of 80 decks
+8% synergy
Riftwing Cloudskate
20% of 91 decks
+20% synergy
Migratory Greathorn
20% of 71 decks
+19% synergy
Golgari Grave-Troll
19% of 80 decks
+18% synergy
Eternal Witness
19% of 80 decks
+8% synergy
Hullbreaker Horror
18% of 76 decks
+15% synergy
Queza, Augur of Agonies
18% of 22 decks
+18% synergy
Drogskol Reaver
18% of 33 decks
+18% synergy
Chasm Skulker
18% of 90 decks
+16% synergy
Keldon Halberdier
18% of 68 decks
+18% synergy
Bramble Familiar
17% of 29 decks
+16% synergy
Scourge of the Skyclaves
16% of 203 decks
+16% synergy
Fungal Behemoth
16% of 80 decks
+16% synergy
Ajani's Pridemate
16% of 99 decks
+16% synergy
Circle of the Land Druid
16% of 62 decks
+16% synergy
Nalfeshnee
16% of 56 decks
+15% synergy
Necropanther
16% of 88 decks
+16% synergy
Murkfiend Liege
16% of 19 decks
+15% synergy
Aboleth Spawn
15% of 71 decks
+15% synergy
Instants (50)
Counterspell
31% of 91 decks
+10% synergy
Suspend
28% of 82 decks
+28% synergy
Fury Charm
26% of 68 decks
+26% synergy
Mythos of Nethroi
22% of 55 decks
+21% synergy
Grisly Salvage
21% of 80 decks
+20% synergy
Clockspinning
21% of 91 decks
+20% synergy
Delay
16% of 91 decks
+15% synergy
Chaos Warp
16% of 68 decks
+0% synergy
Path to Exile
16% of 99 decks
-3% synergy
Brainstorm
15% of 91 decks
+4% synergy
Dark Ritual
14% of 227 decks
+3% synergy
Bedevil
14% of 66 decks
+10% synergy
Negate
13% of 91 decks
+2% synergy
Fog
12% of 80 decks
+11% synergy
Cosmic Rebirth
12% of 33 decks
+11% synergy
Evolution Charm
11% of 80 decks
+11% synergy
Beast Within
11% of 80 decks
-8% synergy
Cyclonic Rift
11% of 91 decks
-3% synergy
Drown in the Loch
11% of 83 decks
+9% synergy
Thrill of Possibility
11% of 66 decks
+5% synergy
Anguished Unmaking
10% of 98 decks
+5% synergy
Dust of Moments
10% of 99 decks
+10% synergy
Tangle
10% of 80 decks
+10% synergy
Reverse the Polarity
10% of 30 decks
+9% synergy
Absorb
9% of 33 decks
+9% synergy
Assassin's Trophy
9% of 78 decks
+3% synergy
Delayed Blast Fireball
9% of 56 decks
+7% synergy
Scent of Ivy
9% of 80 decks
+9% synergy
Sprouting Vines
9% of 80 decks
+9% synergy
Blood for the Blood God!
9% of 47 decks
+7% synergy
Teferi's Protection
8% of 95 decks
-1% synergy
Return to Dust
8% of 99 decks
+6% synergy
Deflecting Swat
8% of 66 decks
-0% synergy
Strength of Night
8% of 80 decks
+7% synergy
Harmonic Convergence
8% of 80 decks
+7% synergy
Nature's Panoply
8% of 80 decks
+7% synergy
Terminate
7% of 67 decks
+3% synergy
Beacon of Immortality
7% of 99 decks
+7% synergy
Enlightened Tutor
7% of 99 decks
-1% synergy
Abzan Charm
7% of 57 decks
+6% synergy
Venser's Diffusion
7% of 91 decks
+7% synergy
Despark
7% of 91 decks
+3% synergy
Mana Drain
7% of 91 decks
-1% synergy
Arcane Denial
7% of 91 decks
-3% synergy
Generous Gift
7% of 91 decks
-5% synergy
Unexpected Windfall
6% of 63 decks
+3% synergy
Luminescent Rain
6% of 80 decks
+6% synergy
Spoils of Blood
6% of 224 decks
+6% synergy
Grapple with the Past
6% of 80 decks
+6% synergy
Putrefy
6% of 80 decks
+3% synergy
Sorceries (50)
Inevitable Betrayal
32% of 82 decks
+31% synergy
Kodama's Reach
29% of 80 decks
+13% synergy
Wheel of Fate
28% of 68 decks
+27% synergy
Reality Strobe
27% of 91 decks
+27% synergy
Ancestral Vision
27% of 91 decks
+27% synergy
Eerie Ultimatum
27% of 55 decks
+26% synergy
Charnel Serenade
26% of 31 decks
+25% synergy
Rampant Growth
25% of 80 decks
+8% synergy
All of History, All at Once
24% of 29 decks
+24% synergy
Farseek
22% of 80 decks
+7% synergy
Plunder
21% of 68 decks
+21% synergy
Curse of the Cabal
20% of 227 decks
+20% synergy
Blasphemous Act
19% of 68 decks
+3% synergy
Glimpse of Tomorrow
18% of 65 decks
+18% synergy
Venture Forth
18% of 62 decks
+17% synergy
Search for Tomorrow
18% of 80 decks
+16% synergy
Wibbly-wobbly, Timey-wimey
17% of 29 decks
+17% synergy
Debt to the Deathless
17% of 99 decks
+16% synergy
Fractured Sanity
17% of 82 decks
+16% synergy
Profane Tutor
17% of 200 decks
+15% synergy
Gaea's Will
16% of 70 decks
+16% synergy
Phthisis
15% of 227 decks
+15% synergy
The Wedding of River Song
15% of 26 decks
+15% synergy
Life from the Loam
15% of 80 decks
+13% synergy
Time Wipe
13% of 30 decks
+12% synergy
Chronomantic Escape
13% of 99 decks
+13% synergy
Merciless Eviction
13% of 99 decks
+12% synergy
Crashing Footfalls
13% of 78 decks
+13% synergy
Psionic Ritual
13% of 71 decks
+12% synergy
Explosive Vegetation
12% of 80 decks
+11% synergy
Nature's Lore
12% of 80 decks
-2% synergy
Call of the Nightwing
12% of 90 decks
+12% synergy
Maddening Cacophony
12% of 83 decks
+11% synergy
Exsanguinate
12% of 226 decks
+9% synergy
Fumigate
11% of 97 decks
+10% synergy
Heroes Remembered
11% of 99 decks
+11% synergy
Diabolic Tutor
11% of 227 decks
+7% synergy
Jeska's Will
11% of 66 decks
+2% synergy
Festering March
11% of 227 decks
+11% synergy
Rise of the Witch-king
11% of 38 decks
+9% synergy
Feed the Swarm
10% of 203 decks
+1% synergy
Vandalblast
10% of 68 decks
+2% synergy
Demonic Tutor
10% of 227 decks
-2% synergy
Jarad's Orders
10% of 80 decks
+9% synergy
Explore
10% of 80 decks
+6% synergy
Sign in Blood
10% of 226 decks
+5% synergy
Supreme Verdict
9% of 33 decks
+6% synergy
Extract from Darkness
9% of 89 decks
+8% synergy
Mind Grind
9% of 90 decks
+8% synergy
Last March of the Ents
9% of 34 decks
+6% synergy
Utility Artifacts (22)
Swiftfoot Boots
16% of 226 decks
-12% synergy
Rotating Fireplace
14% of 66 decks
+13% synergy
Lightning Greaves
13% of 228 decks
-12% synergy
Conduit of Worlds
12% of 48 decks
+9% synergy
Well of Lost Dreams
12% of 228 decks
+10% synergy
Tithing Blade
10% of 48 decks
+9% synergy
Aetherflux Reservoir
9% of 222 decks
+5% synergy
Urabrask's Forge
9% of 45 decks
+8% synergy
Bolas's Citadel
8% of 214 decks
+3% synergy
Alhammarret's Archive
8% of 225 decks
+6% synergy
Bontu's Monument
8% of 220 decks
+6% synergy
Chalice of Life
8% of 226 decks
+7% synergy
Cosmos Elixir
7% of 202 decks
+6% synergy
Tainted Sigil
7% of 99 decks
+7% synergy
Cryptolith Fragment
7% of 223 decks
+6% synergy
Altar of Dementia
7% of 228 decks
+4% synergy
Palantír of Orthanc
6% of 98 decks
+4% synergy
Whip of Erebos
6% of 225 decks
+4% synergy
Whispersilk Cloak
6% of 228 decks
+2% synergy
Mask of Griselbrand
6% of 195 decks
+5% synergy
Wand of Wonder
5% of 56 decks
+4% synergy
Eternity Vessel
5% of 227 decks
+5% synergy
Enchantments (50)
The Parting of the Ways
23% of 31 decks
+22% synergy
Endless Evil
21% of 71 decks
+20% synergy
As Foretold
20% of 88 decks
+20% synergy
Sanguine Bond
20% of 226 decks
+17% synergy
Death's Oasis
18% of 55 decks
+18% synergy
Blind Obedience
16% of 99 decks
+13% synergy
Paradox Haze
14% of 91 decks
+13% synergy
Exquisite Blood
14% of 225 decks
+12% synergy
Cleric Class
14% of 85 decks
+13% synergy
Phyrexian Arena
14% of 227 decks
+7% synergy
Rhystic Study
13% of 91 decks
-1% synergy
Court of Vantress
13% of 31 decks
+11% synergy
Court of Embereth
12% of 32 decks
+11% synergy
Passionate Archaeologist
12% of 56 decks
+11% synergy
The Lost and the Damned
12% of 34 decks
+11% synergy
Palace Siege
11% of 224 decks
+10% synergy
Court of Ire
11% of 66 decks
+10% synergy
Celestial Mantle
10% of 99 decks
+10% synergy
Dawn's Reflection
10% of 80 decks
+10% synergy
Smothering Tithe
10% of 92 decks
-2% synergy
Court of Cunning
10% of 83 decks
+9% synergy
Cradle of Vitality
9% of 99 decks
+9% synergy
Upwelling
9% of 80 decks
+9% synergy
Prismatic Omen
9% of 80 decks
+8% synergy
Deadbridge Chant
9% of 80 decks
+8% synergy
Greater Good
9% of 80 decks
+6% synergy
Dawn of Hope
9% of 92 decks
+8% synergy
The Ruinous Powers
8% of 48 decks
+8% synergy
Angelic Chorus
8% of 99 decks
+8% synergy
Greed
8% of 227 decks
+7% synergy
Crawling Infestation
8% of 65 decks
+7% synergy
Propaganda
8% of 91 decks
+2% synergy
Theater of Horrors
8% of 66 decks
+7% synergy
Subversion
7% of 227 decks
+7% synergy
Authority of the Consuls
7% of 97 decks
+5% synergy
Triskaidekaphobia
7% of 222 decks
+7% synergy
Boon Reflection
7% of 99 decks
+7% synergy
Ghostly Prison
7% of 99 decks
+2% synergy
Hydra's Growth
7% of 71 decks
+6% synergy
Mirari's Wake
7% of 57 decks
+4% synergy
Court of Locthwain
7% of 72 decks
+6% synergy
Psychic Corrosion
7% of 87 decks
+6% synergy
Bastion of Remembrance
7% of 203 decks
+4% synergy
Revenge of Ravens
7% of 205 decks
+6% synergy
Baneful Omen
7% of 226 decks
+7% synergy
Memory Erosion
7% of 91 decks
+6% synergy
Hum of the Radix
6% of 80 decks
+6% synergy
Crawling Sensation
6% of 80 decks
+6% synergy
Underworld Dreams
6% of 227 decks
+5% synergy
The Meathook Massacre
6% of 195 decks
+3% synergy
Planeswalkers (8)
Grist, the Hunger Tide
13% of 70 decks
+12% synergy
Ashiok, Dream Render
9% of 85 decks
+8% synergy
Sorin Markov
7% of 226 decks
+7% synergy
Ashiok, Nightmare Muse
6% of 82 decks
+6% synergy
Ajani Goldmane
6% of 99 decks
+6% synergy
Jace, Memory Adept
5% of 91 decks
+5% synergy
Huatli, the Sun's Heart
5% of 56 decks
+5% synergy
Kaya, Intangible Slayer
5% of 58 decks
+5% synergy
Utility Lands (29)
Bojuka Bog
19% of 226 decks
+3% synergy
Rogue's Passage
16% of 226 decks
-2% synergy
Urborg, Tomb of Yawgmoth
16% of 228 decks
+6% synergy
Reliquary Tower
16% of 227 decks
-13% synergy
Trenzalore Clocktower
13% of 30 decks
+12% synergy
Vault of the Archangel
13% of 99 decks
+11% synergy
Cabal Coffers
11% of 227 decks
+5% synergy
Mystic Sanctuary
10% of 84 decks
+3% synergy
Nephalia Drownyard
9% of 90 decks
+8% synergy
Temple of the False God
8% of 228 decks
-2% synergy
Restless Fortress
8% of 38 decks
+7% synergy
Cabal Stronghold
8% of 217 decks
+6% synergy
Jungle Basin
8% of 80 decks
+7% synergy
Leechridden Swamp
7% of 226 decks
+7% synergy
Thespian's Stage
7% of 226 decks
+5% synergy
Dakmor Salvage
7% of 227 decks
+6% synergy
Boseiju, Who Endures
6% of 63 decks
-3% synergy
Centaur Garden
6% of 80 decks
+6% synergy
Tree of Tales
6% of 80 decks
+5% synergy
Shambling Vent
6% of 98 decks
+6% synergy
Minas Morgul, Dark Fortress
6% of 49 decks
+4% synergy
Emeria, the Sky Ruin
6% of 99 decks
+5% synergy
Argoth, Sanctum of Nature
6% of 50 decks
+5% synergy
Spinerock Knoll
6% of 68 decks
+4% synergy
Hostile Hostel
6% of 195 decks
+5% synergy
Creeping Tar Pit
6% of 90 decks
+5% synergy
Kabira Crossroads
5% of 99 decks
+5% synergy
Secluded Steppe
5% of 99 decks
+3% synergy
Windbrisk Heights
5% of 99 decks
+3% synergy
Mana Artifacts (31)
Sol Ring
61% of 228 decks
-24% synergy
Arcane Signet
55% of 206 decks
-16% synergy
Dimir Signet
26% of 90 decks
+17% synergy
Rakdos Signet
21% of 67 decks
+14% synergy
Sol Talisman
18% of 201 decks
+17% synergy
Orzhov Signet
17% of 99 decks
+11% synergy
Commander's Sphere
17% of 225 decks
+0% synergy
Talisman of Hierarchy
14% of 91 decks
+9% synergy
Fellwar Stone
14% of 228 decks
-7% synergy
Izzet Signet
14% of 44 decks
+7% synergy
Dimir Keyrune
13% of 90 decks
+13% synergy
Mox Tantalite
13% of 214 decks
+13% synergy
Azorius Signet
12% of 33 decks
+6% synergy
Talisman of Indulgence
12% of 67 decks
+6% synergy
Talisman of Dominance
11% of 90 decks
+3% synergy
Lotus Bloom
11% of 228 decks
+10% synergy
Thought Vessel
10% of 223 decks
-5% synergy
Golgari Signet
10% of 80 decks
+7% synergy
Pristine Talisman
9% of 226 decks
+8% synergy
Chromatic Lantern
9% of 226 decks
-0% synergy
Obelisk of Esper
9% of 33 decks
+9% synergy
Talisman of Creativity
9% of 44 decks
+3% synergy
Midnight Clock
8% of 84 decks
+6% synergy
Mind Stone
7% of 228 decks
-11% synergy
Charcoal Diamond
7% of 227 decks
+4% synergy
Replicating Ring
6% of 202 decks
+5% synergy
Talisman of Resilience
6% of 78 decks
+4% synergy
Orzhov Cluestone
6% of 99 decks
+6% synergy
Paradise Plume
6% of 228 decks
+6% synergy
Talisman of Unity
5% of 57 decks
+4% synergy
Selesnya Signet
5% of 57 decks
+3% synergy
Lands (50)
Command Tower
60% of 226 decks
-13% synergy
Lush Portico
50% of 8 decks
+46% synergy
Shadowy Backstreet
50% of 10 decks
+46% synergy
Underground Mortuary
50% of 10 decks
+45% synergy
Indatha Triome
47% of 55 decks
+44% synergy
Sandsteppe Citadel
46% of 57 decks
+43% synergy
Temple Garden
39% of 57 decks
+30% synergy
Xander's Lounge
38% of 39 decks
+35% synergy
Crumbling Necropolis
37% of 43 decks
+33% synergy
Godless Shrine
34% of 99 decks
+25% synergy
Steam Vents
32% of 44 decks
+23% synergy
The World Tree
31% of 13 decks
+28% synergy
Sunken Hollow
30% of 89 decks
+22% synergy
Arcane Sanctum
30% of 33 decks
+27% synergy
Overgrown Tomb
30% of 80 decks
+21% synergy
Smoldering Marsh
28% of 67 decks
+21% synergy
Caves of Koilos
28% of 99 decks
+22% synergy
Undergrowth Stadium
28% of 71 decks
+23% synergy
Isolated Chapel
27% of 99 decks
+21% synergy
Dragonskull Summit
27% of 67 decks
+20% synergy
Watery Grave
27% of 90 decks
+16% synergy
Temple of Silence
25% of 99 decks
+21% synergy
Nomad Outpost
25% of 20 decks
+22% synergy
Orzhov Basilica
24% of 99 decks
+21% synergy
Evolving Wilds
24% of 227 decks
+2% synergy
Stomping Ground
24% of 17 decks
+14% synergy
Exotic Orchard
23% of 227 decks
-11% synergy
Ziatora's Proving Ground
23% of 13 decks
+20% synergy
Spara's Headquarters
23% of 13 decks
+19% synergy
Canopy Vista
23% of 57 decks
+15% synergy
Raffine's Tower
23% of 22 decks
+19% synergy
Sulfur Falls
23% of 44 decks
+16% synergy
Llanowar Wastes
22% of 80 decks
+17% synergy
Blood Crypt
22% of 67 decks
+13% synergy
Scoured Barrens
21% of 98 decks
+19% synergy
Golgari Rot Farm
21% of 80 decks
+18% synergy
Luxury Suite
21% of 66 decks
+15% synergy
Hallowed Fountain
21% of 33 decks
+12% synergy
Simic Guildgate
21% of 19 decks
+20% synergy
Opulent Palace
21% of 19 decks
+18% synergy
Breeding Pool
21% of 19 decks
+12% synergy
Mystic Monastery
20% of 15 decks
+17% synergy
Drowned Catacomb
20% of 90 decks
+14% synergy
Bountiful Promenade
20% of 56 decks
+14% synergy
Deathcap Glade
19% of 67 decks
+16% synergy
Vault of Champions
19% of 88 decks
+13% synergy
Training Center
19% of 43 decks
+12% synergy
Terramorphic Expanse
18% of 228 decks
+2% synergy
Dimir Aqueduct
18% of 90 decks
+13% synergy
Gruul Guildgate
18% of 17 decks
+17% synergy