Endless Evil (Card)

Endless Evil
In 28185 decks 0.94% of 3009564 decks
Paul Palmer
Sep 5, 2024
Technically Playable - Captain N'ghathrod
The horrors persist but so does this deck tech!
Jonathan Zucchetti
Jul 10, 2024
Recross the Paths - Building a Merfolk Deck with Kumena
Take Merfolk for a new spin with this Kumena, Tyrant of Orazca build.
Cardsphere
Archidekt
Commander Spellbook
Moxfield
Scryfall
MTGStocks
Captain N'ghathrod
68.03% of 13843 decks 9417 decks
Umbris, Fear Manifest
53.67% of 6384 decks 3426 decks
Obeka, Splitter of Seconds
12.88% of 14084 decks 1814 decks
Ivy, Gleeful Spellthief
14.55% of 6077 decks 884 decks
Omo, Queen of Vesuva
7.63% of 9468 decks 722 decks
Tatsunari, Toad Rider
11.87% of 5904 decks 701 decks
Zellix, Sanity Flayer // Haunted One
44.85% of 1349 decks 605 decks
Hidetsugu and Kairi
21.34% of 2783 decks 594 decks
Cynette, Jelly Drover
37.20% of 1164 decks 433 decks
Adrix and Nev, Twincasters
5.31% of 7218 decks 383 decks
Sakashima of a Thousand Faces // Vial Smasher the Fierce
16.32% of 2188 decks 357 decks
Talion, the Kindly Lord
3.16% of 8675 decks 274 decks
The Ninth Doctor // Clara Oswald
24.97% of 885 decks 221 decks
Keiga, the Tide Star
58.95% of 363 decks 214 decks
Moritte of the Frost
21.68% of 927 decks 201 decks
Xavier Sal, Infested Captain
2.92% of 6585 decks 192 decks
Lord of the Nazgûl
1.24% of 13464 decks 167 decks
Lord Xander, the Collector
4.87% of 3118 decks 152 decks
Nihiloor
20.44% of 680 decks 139 decks
Yarok, the Desecrated
1.22% of 11058 decks 135 decks
New Cards
The Water Crystal
8% of 1318 decks +6% synergy
Temur Battlecrier
7% of 150 decks -3% synergy
Elspeth, Storm Slayer
6% of 550 decks +1% synergy
Call the Spirit Dragons
6% of 79 decks -4% synergy
Flamehold Grappler
6% of 186 decks +4% synergy
High Synergy Cards
Uchuulon
56% of 21546 decks +55% synergy
Consuming Aberration
57% of 21546 decks +53% synergy
Nemesis of Reason
54% of 21546 decks +52% synergy
Ravenous Chupacabra
47% of 21546 decks +44% synergy
Grazilaxx, Illithid Scholar
44% of 28186 decks +42% synergy
Guiltfeeder
42% of 21546 decks +42% synergy
Sewer Nemesis
41% of 21546 decks +41% synergy
Sludge Monster
42% of 28186 decks +40% synergy
Brainstealer Dragon
41% of 21546 decks +40% synergy
Zellix, Sanity Flayer
40% of 28186 decks +39% synergy
Top Cards
Counterspell
50% of 28186 decks +8% synergy
Feed the Swarm
45% of 21546 decks +28% synergy
Drown in the Loch
44% of 21546 decks +39% synergy
Swords to Plowshares
41% of 2702 decks -22% synergy
Lightning Greaves
41% of 28186 decks +16% synergy
Dragonmaster Outcast
40% of 4617 decks +37% synergy
Aboleth Spawn
39% of 28186 decks +38% synergy
Fractured Sanity
39% of 28186 decks +38% synergy
Beast Within
39% of 5717 decks +2% synergy
Mindcrank
39% of 28186 decks +37% synergy
Game Changers
Rhystic Study
20% of 28186 decks -6% synergy
Smothering Tithe
19% of 2702 decks -5% synergy
Enlightened Tutor
14% of 2702 decks -2% synergy
Teferi's Protection
13% of 2702 decks -6% synergy
Deflecting Swat
13% of 4617 decks -4% synergy
Jeska's Will
10% of 4617 decks -6% synergy
Worldly Tutor
9% of 5717 decks -4% synergy
Crop Rotation
9% of 5717 decks -1% synergy
Aura Shards
5% of 969 decks -3% synergy
Ancient Tomb
5% of 28186 decks -5% synergy
Creatures
Hullbreaker Horror
37% of 28186 decks +30% synergy
Spellskite
37% of 28186 decks +33% synergy
Mind Flayer
36% of 28186 decks +35% synergy
Nighthowler
35% of 21546 decks +34% synergy
Wharf Infiltrator
34% of 28186 decks +33% synergy
Grell Philosopher
33% of 28186 decks +32% synergy
Ancient Cellarspawn
32% of 10083 decks +31% synergy
Silent Hallcreeper
30% of 13612 decks +28% synergy
Plargg and Nassari
30% of 4617 decks +29% synergy
Hunted Horror
30% of 21546 decks +29% synergy
Boneyard Lurker
29% of 2074 decks +28% synergy
Chasm Skulker
28% of 28186 decks +24% synergy
Toxrill, the Corrosive
27% of 21546 decks +25% synergy
Progenitor Mimic
25% of 5717 decks +23% synergy
Gemrazer
25% of 5717 decks +24% synergy
Migratory Greathorn
24% of 5717 decks +23% synergy
Skyline Despot
24% of 4617 decks +23% synergy
Phyrexian Obliterator
24% of 21546 decks +22% synergy
Elder Brain
24% of 21546 decks +22% synergy
Jhoira of the Ghitu
23% of 4617 decks +22% synergy
Overcharged Amalgam
23% of 28186 decks +22% synergy
Ruin Crab
22% of 28186 decks +20% synergy
Otrimi, the Ever-Playful
22% of 2074 decks +21% synergy
Parcelbeast
22% of 5717 decks +21% synergy
The Mindskinner
22% of 13433 decks +20% synergy
Phyrexian Rager
21% of 21546 decks +21% synergy
Roaming Throne
21% of 24059 decks +14% synergy
Sanctum Weaver
21% of 5717 decks +15% synergy
Sawtusk Demolisher
20% of 5717 decks +19% synergy
Spark Double
20% of 28186 decks +13% synergy
Brokkos, Apex of Forever
19% of 2074 decks +18% synergy
Bonehoard Dracosaur
19% of 4189 decks +16% synergy
Birds of Paradise
19% of 5717 decks -9% synergy
Syr Konrad, the Grim
19% of 21546 decks +10% synergy
Thing in the Ice
18% of 28186 decks +18% synergy
Vashta Nerada
18% of 18836 decks +17% synergy
Laughing Jasper Flint
18% of 2822 decks +16% synergy
Phyrexian Revoker
18% of 28186 decks +17% synergy
Dauthi Horror
17% of 21546 decks +17% synergy
Captain N'ghathrod
17% of 21546 decks +17% synergy
Forgotten Creation
17% of 28186 decks +16% synergy
Generous Plunderer
17% of 3508 decks +15% synergy
Eidolon of Blossoms
16% of 5717 decks +12% synergy
Setessan Champion
16% of 5717 decks +12% synergy
Glowstone Recluse
16% of 5717 decks +15% synergy
Eternal Witness
16% of 5717 decks -3% synergy
Auspicious Starrix
15% of 5717 decks +15% synergy
Llanowar Elves
15% of 5717 decks -5% synergy
Blood Tyrant
15% of 3351 decks +15% synergy
Cruel Somnophage
15% of 20252 decks +13% synergy
Instants
Memory Plunder
33% of 21546 decks +31% synergy
Chaos Warp
33% of 4617 decks +2% synergy
Path to Exile
31% of 2702 decks -16% synergy
Double Major
27% of 5717 decks +23% synergy
Negate
26% of 28186 decks +4% synergy
Heroic Intervention
24% of 5717 decks -5% synergy
Dark Ritual
24% of 21546 decks +1% synergy
Terminate
23% of 3351 decks +3% synergy
Growth Spiral
21% of 5717 decks -0% synergy
Curtains' Call
19% of 21546 decks +18% synergy
Cyclonic Rift
19% of 28186 decks -7% synergy
Arcane Denial
17% of 28186 decks -3% synergy
Generous Gift
17% of 2702 decks -8% synergy
Assassin's Trophy
17% of 2074 decks -14% synergy
An Offer You Can't Refuse
15% of 28186 decks -7% synergy
Drown in Dreams
15% of 28186 decks +13% synergy
Bedevil
15% of 3351 decks +2% synergy
Void Rend
15% of 1526 decks +1% synergy
Fact or Fiction
14% of 28186 decks +9% synergy
Cackling Counterpart
14% of 28186 decks +13% synergy
Pull from Tomorrow
14% of 28186 decks +11% synergy
Brainstorm
14% of 28186 decks -5% synergy
Dovin's Veto
13% of 2702 decks -5% synergy
Tamiyo's Safekeeping
13% of 5717 decks +7% synergy
Reality Shift
13% of 28186 decks +4% synergy
Deadly Rollick
13% of 21546 decks +1% synergy
Mana Drain
12% of 28186 decks -3% synergy
Fierce Guardianship
12% of 28186 decks -7% synergy
See Double
11% of 28186 decks +10% synergy
Pongify
11% of 28186 decks -0% synergy
Withering Torment
11% of 10129 decks +3% synergy
Didn't Say Please
11% of 28186 decks +10% synergy
Second Harvest
10% of 5717 decks +6% synergy
Anguished Unmaking
10% of 1526 decks -14% synergy
Vampiric Tutor
10% of 21546 decks -7% synergy
Putrefy
10% of 2074 decks -6% synergy
Despark
10% of 1526 decks -5% synergy
Infernal Grasp
9% of 21546 decks +2% synergy
Baleful Mastery
9% of 21546 decks +6% synergy
Resculpt
9% of 28186 decks +4% synergy
Malakir Rebirth
8% of 21546 decks +0% synergy
Rootborn Defenses
8% of 2702 decks +5% synergy
Tyvar's Stand
8% of 5717 decks +4% synergy
Ghostly Flicker
8% of 28186 decks +3% synergy
Stroke of Midnight
8% of 2527 decks -2% synergy
Rapid Hybridization
8% of 28186 decks -1% synergy
Swan Song
8% of 28186 decks -9% synergy
Planar Genesis
8% of 3544 decks +3% synergy
Eladamri's Call
8% of 969 decks -3% synergy
Fated Infatuation
7% of 28186 decks +7% synergy
Sorceries
Cultivate
37% of 5717 decks -8% synergy
Extract from Darkness
35% of 21546 decks +32% synergy
Blasphemous Act
33% of 4617 decks +0% synergy
Maddening Cacophony
33% of 28186 decks +31% synergy
Rampant Growth
31% of 5717 decks -3% synergy
Psionic Ritual
28% of 28186 decks +27% synergy
Nature's Lore
26% of 5717 decks -6% synergy
Kodama's Reach
25% of 5717 decks -5% synergy
Croaking Counterpart
25% of 5717 decks +23% synergy
Farseek
24% of 5717 decks -11% synergy
Mind Grind
24% of 21546 decks +22% synergy
Breach the Multiverse
23% of 21546 decks +19% synergy
Rousing Refrain
22% of 4617 decks +21% synergy
Crippling Fear
22% of 21546 decks +20% synergy
Three Visits
19% of 5717 decks -5% synergy
Irenicus's Vile Duplication
19% of 28186 decks +15% synergy
Doppelgang
18% of 4415 decks +15% synergy
Rite of Replication
18% of 28186 decks +15% synergy
In Garruk's Wake
17% of 21546 decks +14% synergy
Syphon Mind
17% of 21546 decks +14% synergy
Repudiate // Replicate
17% of 5717 decks +16% synergy
Aggressive Biomancy
16% of 3454 decks +15% synergy
Reanimate
15% of 21546 decks -2% synergy
Quasiduplicate
15% of 28186 decks +14% synergy
Tasha's Hideous Laughter
15% of 28186 decks +14% synergy
Toxic Deluge
14% of 21546 decks -4% synergy
Demonic Tutor
14% of 21546 decks -7% synergy
Mythos of Illuna
13% of 867 decks +12% synergy
Vandalblast
13% of 4617 decks -3% synergy
From the Catacombs
13% of 21546 decks +12% synergy
Glimpse the Unthinkable
12% of 21546 decks +11% synergy
Rise of the Dark Realms
12% of 21546 decks +8% synergy
Cut Your Losses
12% of 28186 decks +10% synergy
Rally the Galadhrim
11% of 5085 decks +10% synergy
Windfall
10% of 28186 decks -2% synergy
Mythos of Brokkos
10% of 2074 decks +9% synergy
Quantum Misalignment
9% of 24826 decks +8% synergy
Damnation
9% of 21546 decks +2% synergy
Bala Ged Recovery
9% of 5717 decks +0% synergy
Damn
8% of 1526 decks -8% synergy
Curse of the Swine
8% of 28186 decks +4% synergy
Mind Funeral
8% of 21546 decks +8% synergy
Hex
8% of 21546 decks +8% synergy
Farewell
8% of 2702 decks -5% synergy
Sylvan Scrying
8% of 5717 decks +5% synergy
Austere Command
8% of 2702 decks -5% synergy
Stolen Identity
8% of 28186 decks +7% synergy
Hour of Promise
8% of 5717 decks +6% synergy
Ponder
7% of 28186 decks -5% synergy
Supreme Verdict
7% of 2702 decks -7% synergy
Utility Artifacts
Mind Stone
31% of 28186 decks +15% synergy
Swiftfoot Boots
29% of 28186 decks +1% synergy
Herald's Horn
28% of 28186 decks +22% synergy
Altar of the Brood
15% of 28186 decks +14% synergy
Commander's Sphere
14% of 28186 decks -0% synergy
Whispersilk Cloak
13% of 28186 decks +9% synergy
Helm of the Host
12% of 28186 decks +9% synergy
Mirror Box
11% of 28186 decks +10% synergy
Wayfarer's Bauble
10% of 28186 decks +1% synergy
Panharmonicon
9% of 28186 decks +6% synergy
Strionic Resonator
9% of 28186 decks +6% synergy
Maskwood Nexus
9% of 28186 decks +6% synergy
Realmbreaker, the Invasion Tree
8% of 28186 decks +8% synergy
Urza's Incubator
7% of 28186 decks +4% synergy
Mesmeric Orb
7% of 28186 decks +6% synergy
Sapphire Medallion
7% of 28186 decks +4% synergy
Bident of Thassa
7% of 28186 decks +0% synergy
Stone of Erech
7% of 28105 decks +6% synergy
Blade of Selves
6% of 28186 decks +5% synergy
Winged Boots
6% of 28186 decks +4% synergy
Riverchurn Monument
6% of 8078 decks +5% synergy
Soul-Guide Lantern
6% of 28186 decks +4% synergy
Lantern of the Lost
5% of 28186 decks +5% synergy
Enchantments
Court of Embereth
35% of 4405 decks +34% synergy
Court of Ire
35% of 4617 decks +33% synergy
Reflections of Littjara
30% of 28186 decks +26% synergy
Court of Cunning
25% of 28186 decks +23% synergy
Haunted One
22% of 21546 decks +21% synergy
Descent into Avernus
21% of 4617 decks +18% synergy
Season of Growth
20% of 5717 decks +18% synergy
Rancor
18% of 5717 decks +13% synergy
Wild Growth
18% of 5717 decks +7% synergy
Phyrexian Arena
18% of 21546 decks +2% synergy
Psychic Corrosion
17% of 28186 decks +15% synergy
Snake Umbra
17% of 5717 decks +14% synergy
Shielding Plax
16% of 5717 decks +15% synergy
Ancestral Mask
16% of 5717 decks +14% synergy
Black Market
16% of 21546 decks +12% synergy
Bear Umbra
15% of 5717 decks +11% synergy
Anointed Procession
15% of 2702 decks +7% synergy
Extravagant Replication
15% of 28186 decks +13% synergy
Ghostly Prison
15% of 2702 decks +4% synergy
Kindred Discovery
15% of 28186 decks +7% synergy
Enchantress's Presence
14% of 5717 decks +10% synergy
Aqueous Form
13% of 28186 decks +9% synergy
Leyline of the Guildpact
13% of 369 decks -2% synergy
Propaganda
13% of 28186 decks +1% synergy
Leyline of the Void
13% of 21546 decks +12% synergy
Kenrith's Transformation
13% of 5717 decks +7% synergy
Utopia Sprawl
12% of 5717 decks +4% synergy
Assemble the Legion
12% of 924 decks +8% synergy
Fertile Ground
12% of 5717 decks +8% synergy
Leyline of Anticipation
12% of 28186 decks +8% synergy
Bloodchief Ascension
12% of 21546 decks +8% synergy
Keen Sense
11% of 5717 decks +10% synergy
Doubling Season
11% of 5717 decks +1% synergy
Parallel Lives
11% of 5717 decks +4% synergy
Black Market Connections
10% of 21546 decks -1% synergy
Binding the Old Gods
10% of 2074 decks +5% synergy
Followed Footsteps
10% of 28186 decks +10% synergy
Mirari's Wake
10% of 969 decks -2% synergy
Whip Silk
10% of 5717 decks +9% synergy
Memory Erosion
9% of 28186 decks +8% synergy
Court of Vantress
9% of 26039 decks +8% synergy
Caretaker's Talent
9% of 1550 decks +4% synergy
Mystic Remora
9% of 28186 decks -8% synergy
Vesuvan Duplimancy
9% of 28186 decks +8% synergy
Braid of Fire
9% of 4617 decks +8% synergy
Court of Locthwain
9% of 19873 decks +7% synergy
Stolen Strategy
8% of 4617 decks +7% synergy
As Foretold
8% of 28186 decks +6% synergy
Animate Dead
8% of 21546 decks -1% synergy
Growing Ranks
8% of 969 decks +6% synergy
Planeswalkers
Ashiok, Dream Render
14% of 21546 decks +11% synergy
Ashiok, Nightmare Muse
14% of 21546 decks +13% synergy
Jace, the Perfected Mind
8% of 28186 decks +7% synergy
Ashiok, Nightmare Weaver
6% of 21546 decks +6% synergy
Ashiok, Sculptor of Fears
5% of 21546 decks +5% synergy
Jace, Memory Adept
5% of 28186 decks +4% synergy
Utility Lands
Rogue's Passage
46% of 28186 decks +25% synergy
Nephalia Drownyard
41% of 21546 decks +38% synergy
Bojuka Bog
33% of 21546 decks +3% synergy
Reliquary Tower
33% of 28186 decks +3% synergy
Creeping Tar Pit
23% of 21546 decks +21% synergy
Temple of the False God
17% of 28186 decks +8% synergy
Boseiju, Who Endures
14% of 5717 decks -5% synergy
Urborg, Tomb of Yawgmoth
13% of 28186 decks +4% synergy
Restless Reef
13% of 18287 decks +10% synergy
Mystic Sanctuary
12% of 28186 decks +1% synergy
Hall of Heliod's Generosity
12% of 2702 decks +6% synergy
Otawara, Soaring City
11% of 28186 decks -5% synergy
Shizo, Death's Storehouse
10% of 21546 decks +6% synergy
Alchemist's Refuge
10% of 5717 decks +4% synergy
Cabal Coffers
10% of 21546 decks -1% synergy
Drownyard Temple
9% of 28186 decks +9% synergy
Three Tree City
9% of 15667 decks +3% synergy
Scavenger Grounds
9% of 28186 decks +5% synergy
Takenuma, Abandoned Mire
8% of 21546 decks -2% synergy
Eiganjo, Seat of the Empire
6% of 2702 decks -2% synergy
Mosswort Bridge
6% of 5717 decks -5% synergy
Command Beacon
5% of 28186 decks +1% synergy
Lumbering Falls
5% of 5717 decks +3% synergy
Shifting Woodland
5% of 3597 decks -2% synergy
Mana Artifacts
Sol Ring
89% of 28186 decks +4% synergy
Arcane Signet
83% of 28186 decks +11% synergy
Dimir Signet
61% of 21546 decks +33% synergy
Talisman of Dominance
56% of 21546 decks +24% synergy
Talisman of Creativity
37% of 4617 decks +9% synergy
Thought Vessel
36% of 28186 decks +19% synergy
Izzet Signet
34% of 4617 decks +7% synergy
Talisman of Indulgence
33% of 3351 decks +6% synergy
Rakdos Signet
30% of 3351 decks +2% synergy
Azorius Signet
29% of 2702 decks +4% synergy
Dimir Keyrune
29% of 21546 decks +27% synergy
Talisman of Progress
23% of 2702 decks -1% synergy
Orzhov Signet
22% of 1526 decks -4% synergy
Talisman of Hierarchy
22% of 1526 decks -4% synergy
Fellwar Stone
22% of 28186 decks +1% synergy
Simic Signet
19% of 5717 decks +5% synergy
Boros Signet
16% of 924 decks -6% synergy
Talisman of Conviction
15% of 924 decks -10% synergy
Everflowing Chalice
13% of 28186 decks +9% synergy
Talisman of Curiosity
12% of 5717 decks -1% synergy
Relic of Sauron
11% of 3343 decks +3% synergy
Patchwork Banner
11% of 15506 decks +6% synergy
Timeless Lotus
9% of 477 decks -3% synergy
Replicating Ring
9% of 28186 decks +7% synergy
Midnight Clock
8% of 28186 decks +3% synergy
Gruul Signet
8% of 867 decks -3% synergy
Golgari Signet
8% of 2074 decks -4% synergy
Sky Diamond
7% of 28186 decks +2% synergy
Cursed Mirror
6% of 4617 decks +1% synergy
Talisman of Resilience
6% of 2074 decks -6% synergy
Selesnya Signet
6% of 969 decks -2% synergy
Charcoal Diamond
6% of 21546 decks +1% synergy
Decanter of Endless Water
5% of 28186 decks +1% synergy
Chromatic Lantern
5% of 28186 decks -4% synergy
Lands
Command Tower
85% of 28186 decks +11% synergy
Sunken Hollow
69% of 21546 decks +34% synergy
Choked Estuary
52% of 21546 decks +36% synergy
Tainted Isle
51% of 21546 decks +39% synergy
Opulent Palace
50% of 2074 decks +22% synergy
Crumbling Necropolis
50% of 3351 decks +19% synergy
Darkwater Catacombs
47% of 21546 decks +32% synergy
Temple of Deceit
47% of 21546 decks +31% synergy
Dimir Aqueduct
46% of 21546 decks +30% synergy
Exotic Orchard
46% of 28186 decks +10% synergy
Path of Ancestry
45% of 28186 decks +23% synergy
Xander's Lounge
43% of 3351 decks +17% synergy
Yavimaya Coast
43% of 5717 decks +15% synergy
Sulfur Falls
42% of 4617 decks +9% synergy
Hinterland Harbor
42% of 5717 decks +12% synergy
Drowned Catacomb
42% of 21546 decks +15% synergy
Arcane Sanctum
41% of 1526 decks +13% synergy
The World Tree
40% of 477 decks +9% synergy
Shipwreck Marsh
39% of 21546 decks +20% synergy
Rejuvenating Springs
38% of 5717 decks +10% synergy
Dragonskull Summit
38% of 3351 decks +5% synergy
Steam Vents
37% of 4617 decks -1% synergy
Breeding Pool
37% of 5717 decks -3% synergy
Dreamroot Cascade
37% of 5717 decks +17% synergy
Blood Crypt
37% of 3351 decks -1% synergy
Watery Grave
36% of 21546 decks -4% synergy
Hallowed Fountain
35% of 2702 decks -5% synergy
Zagoth Triome
34% of 2074 decks +5% synergy
Morphic Pool
33% of 21546 decks +8% synergy
Training Center
33% of 4617 decks +7% synergy
Spara's Headquarters
32% of 969 decks +3% synergy
Raffine's Tower
32% of 1526 decks +6% synergy
Ketria Triome
32% of 867 decks -0% synergy
Myriad Landscape
32% of 28186 decks +14% synergy
Overgrown Tomb
32% of 2074 decks -10% synergy
Simic Growth Chamber
32% of 5717 decks +13% synergy
Luxury Suite
31% of 3351 decks +5% synergy
Mystic Monastery
31% of 924 decks +3% synergy
Prairie Stream
30% of 2702 decks -4% synergy
Smoldering Marsh
30% of 3351 decks -4% synergy
Temple Garden
30% of 969 decks -10% synergy
Godless Shrine
29% of 1526 decks -10% synergy
Frontier Bivouac
29% of 867 decks +1% synergy
Sea of Clouds
29% of 2702 decks +4% synergy
Shivan Reef
29% of 4617 decks +1% synergy
Temple of Mystery
29% of 5717 decks +11% synergy
Raugrin Triome
28% of 924 decks +3% synergy
Glacial Fortress
28% of 2702 decks -0% synergy
Llanowar Wastes
28% of 2074 decks +1% synergy
Seaside Citadel
28% of 969 decks +1% synergy