Sinister Concoction (Card)

Sinister Concoction
In 3664 decks 0.11% of 3259520 decks
Cardsphere
Archidekt
Commander Spellbook
Moxfield
Scryfall
MTGStocks
Muldrotha, the Gravetide
5.60% of 19120 decks 1070 decks
Anikthea, Hand of Erebos
3.54% of 13478 decks 477 decks
Verrak, Warped Sengir
18.26% of 1205 decks 220 decks
Lurrus of the Dream-Den
5.57% of 2513 decks 140 decks
The Beamtown Bullies
2.26% of 5628 decks 127 decks
Aphemia, the Cacophony
48.16% of 245 decks 118 decks
Ghen, Arcanum Weaver
3.42% of 2427 decks 83 decks
Narci, Fable Singer
1.22% of 5825 decks 71 decks
The Master of Keys
1.22% of 5238 decks 64 decks
The Mycotyrant
0.52% of 9741 decks 51 decks
Victor, Valgavoth's Seneschal
3.06% of 1633 decks 50 decks
Hashaton, Scarab's Fist
0.26% of 15219 decks 40 decks
Greasefang, Okiba Boss
0.67% of 5563 decks 37 decks
Tayam, Luminous Enigma
0.47% of 6821 decks 32 decks
Korvold, Gleeful Glutton
1.76% of 1647 decks 29 decks
Asmoranomardicadaistinaculdacar
0.68% of 4238 decks 29 decks
Winter, Cynical Opportunist
0.63% of 4301 decks 27 decks
K'rrik, Son of Yawgmoth
0.15% of 16545 decks 25 decks
Egon, God of Death
7.59% of 303 decks 23 decks
Oskar, Rubbish Reclaimer
0.89% of 2588 decks 23 decks
New Cards
Baron, Airship Kingdom
18% of 11 decks +18% synergy
Yuna, Hope of Spira
12% of 127 decks +12% synergy
Summon: Titan
11% of 357 decks +11% synergy
Icetill Explorer
8% of 64 decks +8% synergy
Summon: Knights of Round
7% of 284 decks +7% synergy
High Synergy Cards
Sythis, Harvest's Hand
68% of 639 decks +67% synergy
Faithless Looting
62% of 472 decks +62% synergy
Sterling Grove
56% of 639 decks +56% synergy
Seal of Primordium
54% of 2200 decks +54% synergy
Jukai Naturalist
51% of 639 decks +51% synergy
Sakura-Tribe Elder
49% of 2200 decks +49% synergy
Mirari's Wake
49% of 639 decks +49% synergy
Seal of Removal
48% of 1446 decks +48% synergy
Siren Stormtamer
48% of 1446 decks +48% synergy
Secrets of the Dead
47% of 1446 decks +47% synergy
Top Cards
Thrill of Possibility
43% of 472 decks +43% synergy
Swords to Plowshares
42% of 1470 decks +42% synergy
Mystic Remora
42% of 1446 decks +42% synergy
Spore Frog
40% of 2200 decks +40% synergy
Cathartic Reunion
40% of 472 decks +40% synergy
Mulldrifter
39% of 1446 decks +39% synergy
Doc Aurlock, Grizzled Genius
39% of 847 decks +39% synergy
Ashiok, Dream Render
39% of 1446 decks +38% synergy
Calix, Guided by Fate
38% of 639 decks +38% synergy
Seal of Cleansing
38% of 1470 decks +37% synergy
Game Changers
Aura Shards
34% of 639 decks +34% synergy
Smothering Tithe
19% of 1470 decks +19% synergy
Rhystic Study
18% of 1446 decks +18% synergy
Cyclonic Rift
15% of 1446 decks +15% synergy
Teferi's Protection
13% of 1470 decks +13% synergy
Enlightened Tutor
10% of 1470 decks +10% synergy
Gamble
9% of 472 decks +9% synergy
Demonic Tutor
9% of 3665 decks +9% synergy
Thassa's Oracle
8% of 1446 decks +8% synergy
Crop Rotation
7% of 2200 decks +7% synergy
Creatures
River Kelpie
36% of 1446 decks +36% synergy
Satyr Enchanter
36% of 639 decks +36% synergy
Eternal Witness
35% of 2200 decks +35% synergy
Baleful Strix
35% of 1446 decks +35% synergy
Glen Elendra Archmage
34% of 1446 decks +34% synergy
Ignoble Hierarch
33% of 230 decks +33% synergy
Gravebreaker Lamia
32% of 3665 decks +32% synergy
Inquisitive Glimmer
32% of 139 decks +32% synergy
Sanctum Weaver
32% of 2200 decks +32% synergy
Sidisi, Brood Tyrant
30% of 1147 decks +30% synergy
Rootcoil Creeper
30% of 1147 decks +30% synergy
Haywire Mite
28% of 2200 decks +28% synergy
Nyx Weaver
28% of 2200 decks +28% synergy
Stitcher's Supplier
27% of 3665 decks +27% synergy
Tatyova, Benthic Druid
26% of 1147 decks +26% synergy
Satyr Wayfinder
26% of 2200 decks +25% synergy
World Shaper
25% of 2200 decks +25% synergy
Alseid of Life's Bounty
25% of 1470 decks +25% synergy
The Gitrog Monster
25% of 2200 decks +25% synergy
Kheru Goldkeeper
25% of 332 decks +25% synergy
Skull Prophet
25% of 2200 decks +25% synergy
Eidolon of Blossoms
24% of 2200 decks +24% synergy
Mesa Enchantress
24% of 1470 decks +24% synergy
Dragon Mage
23% of 472 decks +23% synergy
Underrealm Lich
23% of 2200 decks +23% synergy
Dryad of the Ilysian Grove
22% of 2200 decks +22% synergy
Flayer of the Hatebound
21% of 472 decks +21% synergy
Shigeki, Jukai Visionary
21% of 2200 decks +21% synergy
Setessan Champion
21% of 2200 decks +20% synergy
Springbloom Druid
21% of 2200 decks +20% synergy
Ondu Spiritdancer
21% of 1470 decks +20% synergy
Weaver of Harmony
20% of 2200 decks +20% synergy
Syr Konrad, the Grim
20% of 3665 decks +19% synergy
Priest of Fell Rites
19% of 1470 decks +19% synergy
Sun Titan
19% of 1470 decks +19% synergy
Plaguecrafter
19% of 3665 decks +19% synergy
Uro, Titan of Nature's Wrath
19% of 1147 decks +19% synergy
Starfield Mystic
19% of 1470 decks +19% synergy
Insidious Fungus
19% of 1293 decks +19% synergy
Caustic Caterpillar
19% of 2200 decks +19% synergy
Ox of Agonas
18% of 472 decks +18% synergy
Avaricious Dragon
18% of 472 decks +18% synergy
Birds of Paradise
18% of 2200 decks +18% synergy
Accursed Marauder
18% of 2577 decks +18% synergy
Doomwake Giant
18% of 3665 decks +18% synergy
Archon of Sun's Grace
17% of 1470 decks +17% synergy
Cankerbloom
17% of 2200 decks +17% synergy
Spirited Companion
17% of 1470 decks +17% synergy
Lotuslight Dancers
17% of 331 decks +17% synergy
Six
17% of 1531 decks +16% synergy
Instants
Terminate
31% of 472 decks +31% synergy
Big Score
28% of 472 decks +28% synergy
Path to Exile
26% of 1470 decks +26% synergy
Unexpected Windfall
23% of 472 decks +23% synergy
Assassin's Trophy
23% of 2200 decks +23% synergy
Bedevil
22% of 472 decks +22% synergy
Electric Revelation
22% of 472 decks +22% synergy
Anguished Unmaking
21% of 1470 decks +21% synergy
Entomb
21% of 3665 decks +21% synergy
Counterspell
19% of 1446 decks +19% synergy
Grisly Salvage
18% of 2200 decks +18% synergy
Sundering Growth
18% of 639 decks +18% synergy
Chaos Warp
15% of 472 decks +15% synergy
Dark Ritual
13% of 3665 decks +13% synergy
Demand Answers
13% of 412 decks +13% synergy
Generous Gift
13% of 1470 decks +13% synergy
Ephemerate
13% of 1470 decks +12% synergy
Beast Within
12% of 2200 decks +12% synergy
Despark
11% of 1470 decks +11% synergy
Rakdos Charm
11% of 472 decks +11% synergy
Heroic Intervention
11% of 2200 decks +11% synergy
Void Rend
11% of 159 decks +11% synergy
Fact or Fiction
11% of 1446 decks +10% synergy
Crackling Doom
10% of 135 decks +10% synergy
Dovin's Veto
10% of 159 decks +10% synergy
Maestros Charm
10% of 50 decks +10% synergy
Negate
10% of 1446 decks +9% synergy
Faithful Mending
9% of 159 decks +9% synergy
Harrow
9% of 2200 decks +9% synergy
Frantic Search
9% of 1446 decks +9% synergy
Fell the Profane
9% of 2603 decks +8% synergy
Putrefy
9% of 2200 decks +8% synergy
Rootborn Defenses
8% of 1470 decks +8% synergy
An Offer You Can't Refuse
8% of 1446 decks +8% synergy
Prismari Command
8% of 50 decks +8% synergy
Lightning Axe
8% of 472 decks +8% synergy
Malakir Rebirth
8% of 3665 decks +8% synergy
Boros Charm
7% of 135 decks +7% synergy
Arcane Denial
7% of 1446 decks +6% synergy
Bitter Triumph
6% of 3261 decks +6% synergy
Vampiric Tutor
6% of 3665 decks +6% synergy
Peer Past the Veil
6% of 144 decks +6% synergy
Swan Song
6% of 1446 decks +6% synergy
Revitalizing Repast
6% of 1525 decks +6% synergy
Izzet Charm
6% of 50 decks +6% synergy
Hypothesizzle
6% of 50 decks +6% synergy
Brought Back
6% of 1470 decks +6% synergy
Mana Drain
6% of 1446 decks +6% synergy
Lightning Bolt
6% of 472 decks +6% synergy
Infernal Grasp
6% of 3665 decks +6% synergy
Sorceries
Eerie Ultimatum
26% of 639 decks +26% synergy
Thrilling Discovery
24% of 135 decks +24% synergy
Life from the Loam
21% of 2200 decks +21% synergy
Farseek
21% of 2200 decks +20% synergy
Blasphemous Act
21% of 472 decks +20% synergy
Villainous Wealth
20% of 1147 decks +20% synergy
Buried Alive
18% of 3665 decks +18% synergy
Windfall
17% of 1446 decks +17% synergy
Damn
17% of 1470 decks +16% synergy
Ruinous Ultimatum
16% of 135 decks +16% synergy
Cultivate
16% of 2200 decks +16% synergy
Sevinne's Reclamation
16% of 1470 decks +16% synergy
Unmarked Grave
15% of 3665 decks +15% synergy
Rampant Growth
15% of 2200 decks +15% synergy
Mythos of Snapdax
13% of 135 decks +13% synergy
Kodama's Reach
12% of 2200 decks +12% synergy
Tormenting Voice
12% of 472 decks +12% synergy
Reanimate
11% of 3665 decks +11% synergy
Nature's Lore
11% of 2200 decks +11% synergy
Extinguish All Hope
10% of 3665 decks +10% synergy
Victimize
10% of 3665 decks +10% synergy
Toxic Deluge
10% of 3665 decks +10% synergy
Debt to the Deathless
10% of 1470 decks +10% synergy
Witch's Mark
9% of 459 decks +9% synergy
Culling Ritual
9% of 2200 decks +9% synergy
Final Parting
8% of 3665 decks +8% synergy
Supreme Verdict
8% of 159 decks +8% synergy
Three Visits
8% of 2200 decks +8% synergy
Feed the Swarm
8% of 3665 decks +7% synergy
Jarad's Orders
7% of 2200 decks +7% synergy
Grab the Prize
7% of 298 decks +7% synergy
Bala Ged Recovery
7% of 2200 decks +7% synergy
Austere Command
7% of 1470 decks +7% synergy
Dance of the Manse
7% of 159 decks +7% synergy
Sign in Blood
7% of 3665 decks +6% synergy
Bone Shards
6% of 3665 decks +6% synergy
Resurgent Belief
6% of 1470 decks +6% synergy
Dread Return
6% of 3665 decks +6% synergy
Time Wipe
6% of 159 decks +6% synergy
Fumigate
6% of 1470 decks +6% synergy
Experimental Overload
6% of 50 decks +6% synergy
Mystic Retrieval
6% of 50 decks +6% synergy
Seize the Spoils
6% of 472 decks +6% synergy
Living Death
6% of 3665 decks +6% synergy
Replenish
6% of 1470 decks +5% synergy
Lively Dirge
5% of 2766 decks +5% synergy
Idyllic Tutor
5% of 1470 decks +5% synergy
Rite of Oblivion
5% of 1470 decks +5% synergy
Wheel of Misfortune
5% of 472 decks +5% synergy
Rise of the Witch-king
5% of 2200 decks +5% synergy
Utility Artifacts
Aether Spellbomb
37% of 1446 decks +37% synergy
Lightning Greaves
23% of 3665 decks +23% synergy
Swiftfoot Boots
22% of 3665 decks +22% synergy
Wayfarer's Bauble
22% of 3665 decks +22% synergy
Perpetual Timepiece
20% of 3665 decks +20% synergy
Altar of Dementia
18% of 3665 decks +18% synergy
Hedge Shredder
15% of 1300 decks +15% synergy
Matzalantli, the Great Door
13% of 3298 decks +13% synergy
Nevinyrral's Disk
12% of 3665 decks +12% synergy
Mesmeric Orb
11% of 3665 decks +11% synergy
Ashnod's Altar
11% of 3665 decks +11% synergy
Executioner's Capsule
10% of 3665 decks +10% synergy
The Everflowing Well
10% of 1315 decks +10% synergy
Tainted Sigil
10% of 1470 decks +10% synergy
Nihil Spellbomb
9% of 3665 decks +9% synergy
Expedition Map
8% of 3665 decks +7% synergy
Mishra's Bauble
7% of 3665 decks +7% synergy
Key to the City
7% of 3665 decks +6% synergy
Brass's Tunnel-Grinder
6% of 431 decks +6% synergy
Skullclamp
6% of 3665 decks +6% synergy
Crucible of Worlds
6% of 3665 decks +6% synergy
Conduit of Worlds
6% of 2200 decks +6% synergy
Soul-Guide Lantern
6% of 3665 decks +6% synergy
Enchantments
Pernicious Deed
35% of 2200 decks +35% synergy
Ripples of Undeath
31% of 2587 decks +30% synergy
Kaya's Ghostform
30% of 3665 decks +30% synergy
Growing Ranks
29% of 639 decks +29% synergy
Animate Dead
28% of 3665 decks +28% synergy
Grasp of Fate
28% of 1470 decks +27% synergy
Font of Fertility
27% of 2200 decks +27% synergy
Binding the Old Gods
26% of 2200 decks +26% synergy
Wild Growth
23% of 2200 decks +23% synergy
Bitter Reunion
22% of 472 decks +22% synergy
Vessel of Nascency
21% of 2200 decks +21% synergy
Song of the Worldsoul
21% of 1470 decks +20% synergy
Boon of the Spirit Realm
20% of 1470 decks +20% synergy
Strength of the Harvest
19% of 432 decks +19% synergy
Touch the Spirit Realm
19% of 1470 decks +19% synergy
Seal of Doom
19% of 3665 decks +19% synergy
Starfield of Nyx
19% of 1470 decks +19% synergy
Aura of Silence
19% of 1470 decks +19% synergy
Enchantress's Presence
19% of 2200 decks +19% synergy
Sultai Ascendancy
18% of 1147 decks +18% synergy
Awaken the Honored Dead
18% of 351 decks +18% synergy
Sigil of the Empty Throne
18% of 1470 decks +18% synergy
Soul Snare
18% of 1470 decks +17% synergy
Battle for Bretagard
18% of 639 decks +17% synergy
Cemetery Tampering
17% of 3665 decks +17% synergy
Sphere of Safety
17% of 1470 decks +17% synergy
Privileged Position
17% of 639 decks +17% synergy
Lorehold Excavation
16% of 135 decks +16% synergy
Blind Obedience
16% of 1470 decks +16% synergy
Exploration
15% of 2200 decks +14% synergy
Utopia Sprawl
14% of 2200 decks +14% synergy
Hallowed Haunting
14% of 1470 decks +14% synergy
True Conviction
14% of 1470 decks +14% synergy
Thunder of Unity
14% of 42 decks +14% synergy
Khalni Heart Expedition
14% of 2200 decks +14% synergy
Lunar Convocation
14% of 999 decks +14% synergy
Anointed Procession
13% of 1470 decks +13% synergy
Collective Blessing
13% of 639 decks +13% synergy
Darksteel Mutation
13% of 1470 decks +13% synergy
Kenrith's Transformation
13% of 2200 decks +12% synergy
Ghostly Prison
12% of 1470 decks +12% synergy
Angelic Renewal
12% of 1470 decks +12% synergy
Greater Good
12% of 2200 decks +11% synergy
The Eldest Reborn
11% of 3665 decks +11% synergy
Insidious Roots
11% of 1782 decks +11% synergy
Authority of the Consuls
11% of 1470 decks +11% synergy
Renewed Solidarity
11% of 642 decks +11% synergy
Phyrexian Arena
11% of 3665 decks +11% synergy
Fertile Ground
11% of 2200 decks +11% synergy
Teleportation Circle
11% of 1470 decks +10% synergy
Battles
Invasion of Ergamon
12% of 230 decks +12% synergy
Invasion of Amonkhet
11% of 1446 decks +11% synergy
Invasion of Theros
6% of 159 decks +6% synergy
Planeswalkers
Tamiyo, Collector of Tales
24% of 1147 decks +24% synergy
Oko, Thief of Crowns
17% of 1147 decks +17% synergy
Jace, Wielder of Mysteries
16% of 1446 decks +16% synergy
Calix, Destiny's Hand
10% of 639 decks +10% synergy
Grist, the Hunger Tide
10% of 2200 decks +10% synergy
Teferi, Master of Time
10% of 1446 decks +10% synergy
Liliana, Death's Majesty
5% of 3665 decks +5% synergy
Utility Lands
Kessig Wolf Run
38% of 230 decks +38% synergy
Skarrg, the Rage Pits
33% of 230 decks +33% synergy
Bojuka Bog
28% of 3665 decks +27% synergy
Hall of Heliod's Generosity
22% of 1470 decks +22% synergy
Urborg, Tomb of Yawgmoth
16% of 3665 decks +16% synergy
Cephalid Coliseum
16% of 1446 decks +16% synergy
Boseiju, Who Endures
16% of 2200 decks +16% synergy
Takenuma, Abandoned Mire
14% of 3665 decks +14% synergy
Command Beacon
14% of 3665 decks +14% synergy
Shifting Woodland
13% of 1525 decks +13% synergy
Otawara, Soaring City
11% of 1446 decks +11% synergy
Dakmor Salvage
11% of 3665 decks +11% synergy
Yavimaya, Cradle of Growth
10% of 3665 decks +10% synergy
Barren Moor
10% of 3665 decks +10% synergy
Ghost Quarter
10% of 3665 decks +10% synergy
Vault of the Archangel
9% of 1470 decks +9% synergy
High Market
9% of 3665 decks +9% synergy
Lonely Sandbar
9% of 1446 decks +9% synergy
Geier Reach Sanitarium
9% of 3665 decks +9% synergy
Phyrexian Tower
9% of 3665 decks +9% synergy
Cabal Coffers
9% of 3665 decks +9% synergy
Tranquil Thicket
9% of 2200 decks +8% synergy
Reliquary Tower
8% of 3665 decks +8% synergy
Eiganjo, Seat of the Empire
8% of 1470 decks +8% synergy
Strip Mine
7% of 3665 decks +7% synergy
Rogue's Passage
7% of 3665 decks +7% synergy
Forgotten Cave
7% of 472 decks +7% synergy
Serra's Sanctum
7% of 1470 decks +6% synergy
Glacial Chasm
6% of 3665 decks +6% synergy
Desolate Lighthouse
6% of 50 decks +6% synergy
War Room
6% of 3665 decks +6% synergy
Temple of the False God
6% of 3665 decks +6% synergy
Axgard Armory
6% of 135 decks +6% synergy
Lotus Field
6% of 3665 decks +6% synergy
Urza's Saga
6% of 3665 decks +6% synergy
Nephalia Drownyard
5% of 1446 decks +5% synergy
Mana Artifacts
Sol Ring
67% of 3665 decks +67% synergy
Arcane Signet
55% of 3665 decks +55% synergy
Boros Signet
41% of 135 decks +41% synergy
Azorius Signet
36% of 159 decks +36% synergy
Talisman of Progress
30% of 159 decks +30% synergy
Rakdos Signet
28% of 472 decks +28% synergy
Orzhov Signet
27% of 1470 decks +27% synergy
Talisman of Conviction
26% of 135 decks +26% synergy
Talisman of Hierarchy
25% of 1470 decks +25% synergy
Simic Signet
22% of 1147 decks +22% synergy
Dimir Signet
20% of 1446 decks +20% synergy
Talisman of Indulgence
17% of 472 decks +17% synergy
Talisman of Dominance
16% of 1446 decks +16% synergy
Mind Stone
16% of 3665 decks +16% synergy
Golgari Signet
16% of 2200 decks +16% synergy
Commander's Sphere
15% of 3665 decks +14% synergy
Izzet Signet
14% of 50 decks +14% synergy
Lotus Petal
12% of 3665 decks +12% synergy
Fellwar Stone
11% of 3665 decks +11% synergy
Talisman of Creativity
10% of 50 decks +10% synergy
Talisman of Resilience
10% of 2200 decks +10% synergy
Talisman of Curiosity
10% of 1147 decks +9% synergy
Gruul Signet
9% of 230 decks +9% synergy
Talisman of Impulse
7% of 230 decks +7% synergy
Charcoal Diamond
5% of 3665 decks +5% synergy
Lands
Command Tower
75% of 3665 decks +75% synergy
Savage Lands
63% of 230 decks +63% synergy
Cinder Glade
60% of 230 decks +59% synergy
Nomad Outpost
55% of 135 decks +55% synergy
Opulent Palace
52% of 1147 decks +52% synergy
Temple Garden
51% of 639 decks +51% synergy
Indatha Triome
49% of 639 decks +49% synergy
Smoldering Marsh
48% of 472 decks +48% synergy
Godless Shrine
48% of 1470 decks +48% synergy
Bountiful Promenade
44% of 639 decks +44% synergy
Game Trail
44% of 230 decks +44% synergy
Sandsteppe Citadel
44% of 639 decks +44% synergy
Caves of Koilos
43% of 1470 decks +43% synergy
Overgrown Tomb
43% of 2200 decks +42% synergy
Breeding Pool
40% of 1147 decks +40% synergy
Hinterland Harbor
39% of 1147 decks +39% synergy
Temple of Abandon
39% of 230 decks +39% synergy
Exotic Orchard
39% of 3665 decks +39% synergy
Watery Grave
38% of 1446 decks +38% synergy
Canopy Vista
38% of 639 decks +38% synergy
Mossfire Valley
38% of 230 decks +38% synergy
Hallowed Fountain
37% of 159 decks +37% synergy
Arcane Sanctum
37% of 159 decks +37% synergy
Savai Triome
37% of 135 decks +37% synergy
Clifftop Retreat
37% of 135 decks +37% synergy
Zagoth Triome
37% of 1147 decks +37% synergy
Isolated Chapel
37% of 1470 decks +36% synergy
Lush Portico
37% of 511 decks +36% synergy
Woodland Cemetery
36% of 2200 decks +36% synergy
Raffine's Tower
36% of 159 decks +36% synergy
Battlefield Forge
36% of 135 decks +35% synergy
Sunken Hollow
35% of 1446 decks +35% synergy
Llanowar Wastes
35% of 2200 decks +35% synergy
Vault of Champions
35% of 1470 decks +35% synergy
Shadowy Backstreet
34% of 1223 decks +34% synergy
Brushland
34% of 639 decks +34% synergy
Drowned Catacomb
33% of 1446 decks +32% synergy
Undergrowth Stadium
32% of 2200 decks +31% synergy
Sacred Foundry
31% of 135 decks +31% synergy
Foreboding Ruins
31% of 472 decks +31% synergy
Yavimaya Coast
30% of 1147 decks +30% synergy
Rejuvenating Springs
30% of 1147 decks +30% synergy
Sunpetal Grove
30% of 639 decks +29% synergy
Selesnya Sanctuary
29% of 639 decks +29% synergy
Evolving Wilds
29% of 3665 decks +29% synergy
Glacial Fortress
28% of 159 decks +28% synergy
Foreboding Landscape
28% of 783 decks +28% synergy
Shadowblood Ridge
28% of 472 decks +28% synergy
Contaminated Landscape
28% of 147 decks +28% synergy
Overgrown Farmland
27% of 639 decks +27% synergy