Roiling Horror (Card)
Roiling Horror
In 284 decks
0% of 2458188 decks
Nethroi, Apex of Death
0.77% of 5695 decks
44 decks
Obeka, Splitter of Seconds
0.35% of 9474 decks
33 decks
Captain N'ghathrod
0.13% of 12513 decks
16 decks
Oloro, Ageless Ascetic
0.12% of 12127 decks
15 decks
Umbris, Fear Manifest
0.16% of 5729 decks
9 decks
Bilbo, Birthday Celebrant
0.16% of 4976 decks
8 decks
Sapling of Colfenor
1.36% of 440 decks
6 decks
Vito, Thorn of the Dusk Rose
0.17% of 3030 decks
5 decks
Progenitus
0.18% of 2853 decks
5 decks
Astarion, the Decadent
0.13% of 3814 decks
5 decks
Atraxa, Praetors' Voice
0.01% of 35211 decks
5 decks
Athreos, God of Passage
0.07% of 6116 decks
4 decks
Erebos, God of the Dead
0.35% of 1136 decks
4 decks
Prosper, Tome-Bound
0.03% of 13419 decks
4 decks
Obzedat, Ghost Council
0.40% of 743 decks
3 decks
Ob Nixilis of the Black Oath
0.39% of 515 decks
2 decks
Ramos, Dragon Engine
0.02% of 8576 decks
2 decks
Seizan, Perverter of Truth
0.25% of 805 decks
2 decks
New Cards
Suspended Sentence
62% of 13 decks
+55% synergy
Gloomlake Verge
30% of 10 decks
+11% synergy
Grievous Wound
23% of 22 decks
+19% synergy
Neglected Manor
21% of 14 decks
+19% synergy
Enduring Tenacity
18% of 44 decks
+14% synergy
High Synergy Cards
Jhoira of the Ghitu
58% of 71 decks
+57% synergy
Dinosaurs on a Spaceship
57% of 14 decks
+55% synergy
Rousing Refrain
54% of 87 decks
+53% synergy
Arc Blade
47% of 92 decks
+47% synergy
Watcher of Hours
46% of 59 decks
+45% synergy
The Tenth Doctor
46% of 50 decks
+45% synergy
Star Whale
45% of 74 decks
+44% synergy
Judoon Enforcers
43% of 14 decks
+42% synergy
Inspiring Refrain
43% of 114 decks
+42% synergy
Greater Gargadon
40% of 92 decks
+40% synergy
Top Cards
Cultivate
39% of 104 decks
-7% synergy
Ecstatic Beauty
36% of 64 decks
+35% synergy
Shivan Meteor
36% of 92 decks
+36% synergy
Gargadon
36% of 87 decks
+36% synergy
Aeon Chronicler
35% of 124 decks
+35% synergy
Ancestral Vision
35% of 124 decks
+34% synergy
Shivan Sand-Mage
35% of 92 decks
+35% synergy
Swords to Plowshares
34% of 137 decks
-28% synergy
Inevitable Betrayal
34% of 114 decks
+33% synergy
Deep-Sea Kraken
34% of 124 decks
+33% synergy
Creatures
Sakura-Tribe Elder
33% of 104 decks
+14% synergy
Gemrazer
30% of 93 decks
+29% synergy
Detritivore
28% of 92 decks
+28% synergy
Sibylline Soothsayer
28% of 64 decks
+28% synergy
Phantom Nishoba
26% of 84 decks
+26% synergy
Rift Elemental
26% of 92 decks
+26% synergy
Sinister Concierge
26% of 108 decks
+26% synergy
Faeburrow Elder
26% of 81 decks
+14% synergy
Boneyard Lurker
26% of 93 decks
+25% synergy
Veiling Oddity
25% of 124 decks
+25% synergy
Satyr Wayfinder
25% of 104 decks
+23% synergy
Sphinx of the Revelation
25% of 12 decks
+22% synergy
Migratory Greathorn
25% of 93 decks
+24% synergy
Aftermath Analyst
24% of 41 decks
+20% synergy
The Ninth Doctor
24% of 50 decks
+22% synergy
Pardic Dragon
24% of 92 decks
+24% synergy
Will, Scion of Peace
24% of 21 decks
+23% synergy
Honest Rutstein
23% of 30 decks
+15% synergy
Golgari Grave-Troll
23% of 104 decks
+22% synergy
Skull Prophet
23% of 93 decks
+18% synergy
Elas il-Kor, Sadistic Pilgrim
23% of 111 decks
+11% synergy
Ith, High Arcanist
22% of 46 decks
+22% synergy
Nemesis of Reason
21% of 122 decks
+19% synergy
Nyx Weaver
21% of 104 decks
+17% synergy
Eternal Witness
21% of 104 decks
+0% synergy
Riftwing Cloudskate
21% of 124 decks
+21% synergy
The Necrobloom
21% of 24 decks
+17% synergy
Laughing Jasper Flint
21% of 29 decks
+17% synergy
Dragonmaster Outcast
21% of 92 decks
+18% synergy
Consuming Aberration
20% of 122 decks
+16% synergy
Polukranos, Unchained
20% of 93 decks
+20% synergy
Scourge of the Skyclaves
20% of 260 decks
+20% synergy
Alaundo the Seer
20% of 20 decks
+20% synergy
Old Stickfingers
20% of 91 decks
+17% synergy
Underrealm Lich
20% of 102 decks
+16% synergy
Nihilith
20% of 281 decks
+19% synergy
Keldon Halberdier
18% of 92 decks
+18% synergy
World Shaper
18% of 103 decks
+15% synergy
Sawtusk Demolisher
18% of 93 decks
+17% synergy
Reclamation Sage
18% of 104 decks
+7% synergy
Time Beetle
18% of 74 decks
+17% synergy
Drogskol Reaver
17% of 46 decks
+16% synergy
Six
17% of 29 decks
+10% synergy
Grell Philosopher
17% of 106 decks
+16% synergy
Necropanther
17% of 125 decks
+16% synergy
Essence Channeler
17% of 18 decks
+14% synergy
Sludge Monster
16% of 110 decks
+15% synergy
Birds of Paradise
16% of 104 decks
-11% synergy
Wild-Magic Sorcerer
16% of 86 decks
+14% synergy
Auspicious Starrix
16% of 93 decks
+15% synergy
Instants
Counterspell
32% of 124 decks
-11% synergy
Fury Charm
29% of 92 decks
+29% synergy
Mythos of Nethroi
27% of 79 decks
+24% synergy
Timecrafting
26% of 92 decks
+26% synergy
Grisly Salvage
26% of 104 decks
+21% synergy
Cache Grab
25% of 12 decks
+23% synergy
Suspend
24% of 114 decks
+23% synergy
Clockspinning
17% of 124 decks
+16% synergy
Path to Exile
17% of 137 decks
-29% synergy
Bedevil
16% of 88 decks
+2% synergy
Chaos Warp
15% of 92 decks
-17% synergy
Brainstorm
15% of 124 decks
-7% synergy
Delay
13% of 124 decks
+10% synergy
Negate
13% of 124 decks
-10% synergy
Void Rend
12% of 33 decks
-3% synergy
Anguished Unmaking
12% of 136 decks
-12% synergy
Terminate
11% of 89 decks
-10% synergy
Revitalizing Repast
11% of 28 decks
-2% synergy
Fog
11% of 104 decks
+8% synergy
Dark Ritual
10% of 281 decks
-12% synergy
Assassin's Trophy
10% of 102 decks
-20% synergy
Tangle
10% of 104 decks
+9% synergy
Beast Within
10% of 104 decks
-29% synergy
Dust of Moments
9% of 137 decks
+9% synergy
Cyclonic Rift
9% of 124 decks
-19% synergy
Beacon of Immortality
9% of 137 decks
+8% synergy
Sphinx's Revelation
9% of 46 decks
+6% synergy
Fell the Profane
9% of 69 decks
-3% synergy
Evolution Charm
9% of 104 decks
+8% synergy
Drown in the Loch
8% of 116 decks
+2% synergy
Teferi's Protection
7% of 135 decks
-13% synergy
Arcane Denial
7% of 124 decks
-12% synergy
Abzan Charm
7% of 84 decks
+2% synergy
Breathe Your Last
7% of 57 decks
+6% synergy
Despark
7% of 132 decks
-9% synergy
Cosmic Rebirth
7% of 59 decks
+4% synergy
Entomb
7% of 281 decks
-1% synergy
Thrill of Possibility
7% of 89 decks
-4% synergy
Harmonic Convergence
7% of 104 decks
+7% synergy
Sprouting Vines
7% of 104 decks
+6% synergy
Harrow
7% of 104 decks
-3% synergy
Blood for the Blood God!
7% of 76 decks
+3% synergy
Enlightened Tutor
7% of 137 decks
-11% synergy
Overrule
7% of 46 decks
+6% synergy
Venser's Diffusion
6% of 124 decks
+6% synergy
Murder
6% of 279 decks
+3% synergy
Scent of Ivy
6% of 104 decks
+6% synergy
Grapple with the Past
6% of 104 decks
+5% synergy
Putrefy
6% of 104 decks
-10% synergy
Deflecting Swat
6% of 87 decks
-10% synergy
Sorceries
Reality Strobe
33% of 124 decks
+33% synergy
Wheel of Fate
28% of 92 decks
+27% synergy
Eerie Ultimatum
28% of 79 decks
+15% synergy
Rift Bolt
27% of 92 decks
+27% synergy
Kodama's Reach
26% of 104 decks
-6% synergy
Farseek
24% of 104 decks
-10% synergy
Rampant Growth
24% of 104 decks
-11% synergy
Glimpse of Tomorrow
22% of 87 decks
+22% synergy
Plunder
22% of 92 decks
+22% synergy
Charnel Serenade
21% of 104 decks
+20% synergy
Curse of the Cabal
20% of 281 decks
+20% synergy
Profane Tutor
19% of 258 decks
+16% synergy
Phthisis
18% of 281 decks
+18% synergy
Search for Tomorrow
16% of 104 decks
+13% synergy
All of History, All at Once
16% of 74 decks
+16% synergy
Wibbly-wobbly, Timey-wimey
16% of 74 decks
+16% synergy
Blasphemous Act
15% of 92 decks
-18% synergy
Life from the Loam
14% of 104 decks
+11% synergy
Debt to the Deathless
14% of 136 decks
+11% synergy
Venture Forth
13% of 89 decks
+13% synergy
Supreme Verdict
13% of 46 decks
-1% synergy
Nature's Lore
12% of 104 decks
-20% synergy
Festering March
12% of 281 decks
+12% synergy
Chronomantic Escape
12% of 137 decks
+12% synergy
Fractured Sanity
12% of 114 decks
+10% synergy
Vandalblast
12% of 92 decks
-4% synergy
Gaea's Will
12% of 93 decks
+12% synergy
Crashing Footfalls
12% of 102 decks
+12% synergy
Exsanguinate
11% of 280 decks
+6% synergy
Psionic Ritual
11% of 106 decks
+11% synergy
Feed the Swarm
11% of 260 decks
-7% synergy
Heroes Remembered
11% of 137 decks
+11% synergy
Explosive Vegetation
11% of 104 decks
+7% synergy
Fumigate
10% of 136 decks
+7% synergy
Divine Congregation
10% of 137 decks
+10% synergy
Cyclical Evolution
10% of 104 decks
+10% synergy
Jarad's Orders
10% of 104 decks
+8% synergy
Diabolic Tutor
10% of 281 decks
+3% synergy
Maddening Cacophony
10% of 115 decks
+7% synergy
Demonic Tutor
9% of 281 decks
-13% synergy
Revival // Revenge
9% of 132 decks
+8% synergy
Call of the Nightwing
9% of 122 decks
+9% synergy
Buried Alive
9% of 281 decks
+3% synergy
Time Wipe
9% of 45 decks
+2% synergy
Mulch
9% of 104 decks
+8% synergy
Maelstrom Pulse
9% of 104 decks
+7% synergy
Explore
9% of 104 decks
-0% synergy
Toxic Deluge
9% of 279 decks
-9% synergy
The Wedding of River Song
8% of 72 decks
+8% synergy
Sign in Blood
8% of 280 decks
-2% synergy
Utility Artifacts
Caduceus, Staff of Hermes
20% of 25 decks
+15% synergy
Swiftfoot Boots
16% of 282 decks
-12% synergy
Obelisk of Alara
14% of 21 decks
+14% synergy
Legacy Weapon
14% of 21 decks
+13% synergy
Lightning Greaves
13% of 284 decks
-12% synergy
Well of Lost Dreams
13% of 284 decks
+11% synergy
Conduit of Worlds
12% of 77 decks
+5% synergy
Evolution Vat
11% of 27 decks
+11% synergy
Sinister Monolith
10% of 40 decks
+8% synergy
Rotating Fireplace
10% of 153 decks
+9% synergy
Aetherflux Reservoir
9% of 279 decks
+6% synergy
Alhammarret's Archive
7% of 282 decks
+5% synergy
Chalice of Life
7% of 282 decks
+7% synergy
Tithing Blade
7% of 127 decks
+6% synergy
Bolas's Citadel
7% of 272 decks
-2% synergy
Whispersilk Cloak
6% of 284 decks
+3% synergy
Bontu's Monument
6% of 278 decks
+4% synergy
Ring of Xathrid
6% of 282 decks
+6% synergy
Field-Tested Frying Pan
6% of 83 decks
+5% synergy
Altar of Dementia
6% of 284 decks
+3% synergy
Tainted Sigil
6% of 136 decks
+5% synergy
Wayfarer's Bauble
6% of 284 decks
-5% synergy
Whip of Erebos
5% of 279 decks
+2% synergy
Cosmos Elixir
5% of 262 decks
+5% synergy
Ring of Valkas
5% of 282 decks
+5% synergy
Winged Boots
5% of 113 decks
+4% synergy
Eternity Vessel
5% of 283 decks
+5% synergy
Enchantments
As Foretold
30% of 122 decks
+27% synergy
The Parting of the Ways
26% of 65 decks
+26% synergy
Court of Ire
23% of 87 decks
+21% synergy
Court of Embereth
22% of 65 decks
+20% synergy
Endless Evil
18% of 106 decks
+17% synergy
Court of Vantress
17% of 75 decks
+15% synergy
Lunar Convocation
17% of 18 decks
+9% synergy
Death's Oasis
16% of 79 decks
+16% synergy
Sanguine Bond
16% of 280 decks
+11% synergy
Cleric Class
15% of 123 decks
+13% synergy
Regenerations Restored
15% of 20 decks
+14% synergy
Phyrexian Arena
14% of 281 decks
-1% synergy
Blind Obedience
14% of 137 decks
+7% synergy
Leyline of Hope
13% of 23 decks
+12% synergy
Paradox Haze
13% of 124 decks
+11% synergy
Court of Cunning
11% of 115 decks
+10% synergy
Rhystic Study
11% of 124 decks
-17% synergy
Boon Reflection
11% of 137 decks
+10% synergy
Exquisite Blood
11% of 279 decks
+6% synergy
Palace Siege
10% of 279 decks
+10% synergy
Smothering Tithe
9% of 133 decks
-16% synergy
Mechanized Production
9% of 122 decks
+6% synergy
Dovin's Acuity
9% of 45 decks
+9% synergy
Light of Promise
9% of 126 decks
+8% synergy
Upwelling
9% of 104 decks
+8% synergy
Dawn's Reflection
9% of 104 decks
+8% synergy
Prismatic Omen
9% of 104 decks
+8% synergy
Deadbridge Chant
9% of 104 decks
+6% synergy
Greater Good
9% of 104 decks
+4% synergy
Descent into Avernus
8% of 83 decks
+5% synergy
Aqueous Form
8% of 124 decks
+4% synergy
Case of the Uneaten Feast
8% of 50 decks
+7% synergy
The Ruinous Powers
8% of 76 decks
+6% synergy
Stolen Strategy
8% of 91 decks
+6% synergy
Court of Locthwain
8% of 157 decks
+6% synergy
Braid of Fire
8% of 92 decks
+7% synergy
Triskaidekaphobia
8% of 277 decks
+7% synergy
Bastion of Remembrance
7% of 260 decks
+1% synergy
Cradle of Vitality
7% of 137 decks
+7% synergy
Celestial Mantle
7% of 137 decks
+7% synergy
Thopter Spy Network
7% of 124 decks
+4% synergy
Passionate Archaeologist
7% of 83 decks
+5% synergy
Mirari's Wake
7% of 84 decks
-7% synergy
Court of Ambition
7% of 260 decks
+5% synergy
Theater of Horrors
7% of 88 decks
+5% synergy
Subversion
7% of 281 decks
+7% synergy
Greed
7% of 281 decks
+4% synergy
Hum of the Radix
7% of 104 decks
+7% synergy
Crawling Sensation
7% of 104 decks
+6% synergy
Authority of the Consuls
7% of 136 decks
+2% synergy
Planeswalkers
Grist, the Hunger Tide
11% of 93 decks
+7% synergy
Ashiok, Dream Render
7% of 120 decks
+2% synergy
Sorin Markov
6% of 280 decks
+5% synergy
Ajani Goldmane
6% of 137 decks
+6% synergy
Ajani, Strength of the Pride
5% of 131 decks
+4% synergy
Ashiok, Nightmare Muse
5% of 113 decks
+4% synergy
Sorin, Vengeful Bloodlord
5% of 132 decks
+3% synergy
Utility Lands
Rogue's Passage
18% of 282 decks
-1% synergy
Bojuka Bog
16% of 280 decks
-14% synergy
Reliquary Tower
16% of 283 decks
-13% synergy
Vault of the Archangel
15% of 136 decks
+5% synergy
Urborg, Tomb of Yawgmoth
14% of 284 decks
+4% synergy
Restless Fortress
10% of 81 decks
+7% synergy
Kabira Crossroads
9% of 137 decks
+9% synergy
Cabal Coffers
9% of 281 decks
-2% synergy
Trenzalore Clocktower
8% of 74 decks
+7% synergy
Creeping Tar Pit
7% of 122 decks
+4% synergy
Leechridden Swamp
7% of 280 decks
+6% synergy
Mosswort Bridge
7% of 104 decks
-4% synergy
Shambling Vent
7% of 136 decks
+5% synergy
Nephalia Drownyard
7% of 122 decks
+4% synergy
Hidden Nursery
6% of 47 decks
+4% synergy
Thespian's Stage
6% of 282 decks
+4% synergy
Temple of the False God
6% of 284 decks
-3% synergy
Mystic Sanctuary
6% of 118 decks
-6% synergy
Lair of the Hydra
5% of 92 decks
+4% synergy
Spinerock Knoll
5% of 92 decks
+1% synergy
Dakmor Salvage
5% of 281 decks
+3% synergy
Hostile Hostel
5% of 254 decks
+5% synergy
Windbrisk Heights
5% of 137 decks
+1% synergy
Mortuary Mire
5% of 279 decks
+0% synergy
Mana Artifacts
Sol Ring
64% of 284 decks
-20% synergy
Arcane Signet
56% of 266 decks
-16% synergy
Dimir Signet
25% of 122 decks
-5% synergy
Rakdos Signet
19% of 89 decks
-11% synergy
Orzhov Signet
18% of 136 decks
-9% synergy
Izzet Signet
18% of 71 decks
-10% synergy
Sol Talisman
18% of 261 decks
+17% synergy
Commander's Sphere
16% of 282 decks
+0% synergy
Talisman of Hierarchy
15% of 131 decks
-9% synergy
Fellwar Stone
15% of 284 decks
-6% synergy
Mox Tantalite
14% of 274 decks
+13% synergy
Lotus Bloom
12% of 284 decks
+11% synergy
Replicating Ring
11% of 262 decks
+10% synergy
Dimir Keyrune
11% of 122 decks
+9% synergy
Talisman of Dominance
11% of 122 decks
-21% synergy
Relic of Sauron
10% of 51 decks
-1% synergy
Thought Vessel
10% of 280 decks
-7% synergy
Talisman of Indulgence
9% of 89 decks
-17% synergy
Talisman of Progress
9% of 46 decks
-14% synergy
Azorius Signet
9% of 46 decks
-17% synergy
Golgari Signet
9% of 104 decks
-4% synergy
Midnight Clock
8% of 118 decks
+3% synergy
Pristine Talisman
8% of 282 decks
+6% synergy
Chromatic Lantern
8% of 282 decks
-2% synergy
Mind Stone
8% of 284 decks
-10% synergy
Talisman of Creativity
7% of 71 decks
-22% synergy
Talisman of Resilience
7% of 102 decks
-5% synergy
Paradise Plume
6% of 284 decks
+6% synergy
Talisman of Unity
6% of 84 decks
-1% synergy
Obelisk of Grixis
6% of 69 decks
+5% synergy
Charcoal Diamond
6% of 281 decks
+0% synergy
Lands
Command Tower
63% of 282 decks
-11% synergy
Seething Landscape
57% of 14 decks
+41% synergy
Sandsteppe Citadel
45% of 84 decks
+20% synergy
Indatha Triome
42% of 79 decks
+11% synergy
Xander's Lounge
40% of 63 decks
+12% synergy
Crumbling Necropolis
39% of 69 decks
+8% synergy
Spara's Headquarters
37% of 19 decks
+5% synergy
The World Tree
35% of 17 decks
+2% synergy
Jetmir's Garden
33% of 15 decks
+0% synergy
Ziatora's Proving Ground
31% of 16 decks
-1% synergy
Temple Garden
31% of 84 decks
-10% synergy
Godless Shrine
31% of 136 decks
-10% synergy
Deceptive Landscape
30% of 20 decks
+17% synergy
Ketria Triome
29% of 17 decks
-3% synergy
Sunken Hollow
29% of 122 decks
-6% synergy
Caves of Koilos
29% of 136 decks
+1% synergy
Arcane Sanctum
28% of 46 decks
+1% synergy
Dragonskull Summit
28% of 89 decks
-3% synergy
Canopy Vista
27% of 84 decks
-9% synergy
Zagoth Triome
27% of 22 decks
-3% synergy
Overgrown Tomb
27% of 104 decks
-16% synergy
Steam Vents
27% of 71 decks
-12% synergy
Exotic Orchard
27% of 283 decks
-9% synergy
Smoldering Marsh
26% of 89 decks
-7% synergy
Sulfur Falls
25% of 71 decks
-5% synergy
Orzhov Basilica
25% of 136 decks
+9% synergy
Temple of Silence
25% of 136 decks
+7% synergy
Watery Grave
25% of 122 decks
-16% synergy
Underground Mortuary
24% of 45 decks
+8% synergy
Scoured Barrens
24% of 136 decks
+15% synergy
Raffine's Tower
24% of 33 decks
-4% synergy
Evolving Wilds
24% of 283 decks
+3% synergy
Isolated Chapel
24% of 136 decks
-4% synergy
Lush Portico
22% of 40 decks
+10% synergy
Blood Crypt
22% of 89 decks
-16% synergy
Raugrin Triome
22% of 18 decks
-4% synergy
Breeding Pool
22% of 27 decks
-19% synergy
Golgari Rot Farm
22% of 104 decks
+4% synergy
Llanowar Wastes
22% of 104 decks
-4% synergy
Hallowed Fountain
22% of 46 decks
-19% synergy
Luxury Suite
22% of 88 decks
-5% synergy
Drowned Catacomb
20% of 122 decks
-5% synergy
Undergrowth Stadium
20% of 93 decks
-6% synergy
Training Center
19% of 67 decks
-8% synergy
Shadowy Backstreet
19% of 58 decks
+6% synergy
Nomad Outpost
19% of 27 decks
-9% synergy
Tainted Field
18% of 136 decks
+5% synergy
Savai Triome
18% of 22 decks
-9% synergy
Stomping Ground
18% of 22 decks
-23% synergy
Shipwreck Marsh
18% of 108 decks
-1% synergy