Spreading Plague (Card)

Spreading Plague
In 3261 decks 0% of 2840647 decks
DougY
Sep 13, 2024
Top 10 Library Manipulation Enchantments
Explore Esper topdeck manipulation and enchantment combos galore to make new commander Aminatou, Veil Piercer shine.
Wes Stuckey
Sift Through Sands - Pharika/Umori and Zur
Wes Stuckey compares two enchantment decks, one helmed by Pharika, God of Affliction, the other by Zur, Eternal Schemer.
Cardsphere
Archidekt
Commander Spellbook
Moxfield
Scryfall
MTGStocks
Ulalek, Fused Atrocity
6.07% of 15122 decks 918 decks
Mogis, God of Slaughter
7.68% of 3945 decks 303 decks
Morophon, the Boundless
2.22% of 10512 decks 233 decks
Azlask, the Swelling Scourge
2.29% of 8091 decks 185 decks
Oloro, Ageless Ascetic
1.09% of 13497 decks 147 decks
Erebos, God of the Dead
6.12% of 1242 decks 76 decks
Nicol Bolas, the Ravager
0.84% of 7461 decks 63 decks
Esika, God of the Tree
0.32% of 19360 decks 61 decks
Atraxa, Praetors' Voice
0.12% of 35812 decks 44 decks
Child of Alara
0.59% of 6286 decks 37 decks
Jodah, Archmage Eternal
0.28% of 8089 decks 23 decks
Sliver Hivelord
0.65% of 3070 decks 20 decks
Karona, False God
0.59% of 3401 decks 20 decks
Urtet, Remnant of Memnarch
0.14% of 13825 decks 20 decks
Zurgo Helmsmasher
0.39% of 4830 decks 19 decks
Aminatou, the Fateshifter
0.29% of 6192 decks 18 decks
Valki, God of Lies
1.09% of 1658 decks 18 decks
Darigaaz Reincarnated
6.61% of 257 decks 17 decks
New Cards
Ugin, Eye of the Storms
12% of 231 decks +11% synergy
Muraganda Raceway
3% of 739 decks +2% synergy
Bleachbone Verge
3% of 482 decks -4% synergy
Mistrise Village
3% of 158 decks +1% synergy
Dragonfire Blade
2% of 132 decks +2% synergy
High Synergy Cards
Kozilek's Unsealing
54% of 1629 decks +52% synergy
Sire of Stagnation
54% of 2204 decks +51% synergy
Ugin's Binding
52% of 1590 decks +51% synergy
Herald of Kozilek
50% of 1786 decks +48% synergy
Snapping Voidcraw
50% of 1348 decks +48% synergy
Hideous Taskmaster
48% of 1669 decks +47% synergy
Glaring Fleshraker
48% of 2115 decks +46% synergy
Chittering Dispatcher
47% of 1412 decks +46% synergy
Echoes of Eternity
46% of 2184 decks +45% synergy
Path of Annihilation
46% of 1452 decks +45% synergy
Top Cards
Awakening Zone
45% of 1891 decks +43% synergy
Sowing Mycospawn
44% of 1452 decks +43% synergy
From Beyond
43% of 1891 decks +43% synergy
All Is Dust
42% of 3261 decks +41% synergy
Spawnbed Protector
41% of 2115 decks +40% synergy
World Breaker
40% of 1891 decks +40% synergy
Nulldrifter
39% of 1647 decks +38% synergy
Benthic Anomaly
39% of 1574 decks +38% synergy
Wastescape Battlemage
39% of 1348 decks +37% synergy
Forsaken Monument
39% of 3261 decks +37% synergy
Game Changers
Rhystic Study
32% of 2204 decks +6% synergy
Smothering Tithe
28% of 2099 decks +4% synergy
Cyclonic Rift
26% of 2204 decks -1% synergy
Demonic Tutor
26% of 3261 decks +4% synergy
Ancient Tomb
20% of 3261 decks +10% synergy
Vampiric Tutor
20% of 3261 decks +2% synergy
Enlightened Tutor
15% of 2099 decks -2% synergy
The One Ring
11% of 3261 decks +3% synergy
Mana Vault
11% of 3261 decks +5% synergy
Bolas's Citadel
9% of 3261 decks +0% synergy
Creatures
Ulamog, the Defiler
34% of 2184 decks +33% synergy
Conduit of Ruin
32% of 3261 decks +32% synergy
Eldrazi Displacer
31% of 2099 decks +29% synergy
It That Heralds the End
30% of 2421 decks +29% synergy
Deepfathom Skulker
28% of 2204 decks +28% synergy
Ulamog, the Ceaseless Hunger
28% of 3261 decks +26% synergy
Writhing Chrysalis
27% of 1350 decks +25% synergy
Titans' Vanguard
25% of 1306 decks +24% synergy
Artisan of Kozilek
25% of 3261 decks +23% synergy
Kozilek, Butcher of Truth
23% of 3261 decks +21% synergy
Zhulodok, Void Gorger
23% of 3173 decks +22% synergy
Kozilek, the Great Distortion
23% of 3261 decks +21% synergy
Kozilek, the Broken Reality
22% of 2184 decks +22% synergy
Drowner of Hope
22% of 2204 decks +22% synergy
Catacomb Sifter
22% of 1891 decks +21% synergy
Morophon, the Boundless
21% of 1633 decks +7% synergy
Oblivion Sower
21% of 3261 decks +20% synergy
Brood Monitor
21% of 1891 decks +20% synergy
Void Winnower
20% of 3261 decks +19% synergy
It That Betrays
20% of 3261 decks +19% synergy
Ulamog, the Infinite Gyre
20% of 3261 decks +18% synergy
Eldrazi Linebreaker
19% of 1642 decks +19% synergy
Emrakul, the World Anew
19% of 2421 decks +19% synergy
Flayer of Loyalties
19% of 2978 decks +18% synergy
Forerunner of Slaughter
19% of 2337 decks +19% synergy
Roaming Throne
19% of 2703 decks +12% synergy
Skittering Cicada
19% of 2978 decks +18% synergy
Thief of Existence
19% of 1455 decks +18% synergy
Void Grafter
17% of 1756 decks +17% synergy
Bismuth Mindrender
17% of 2115 decks +17% synergy
Vile Redeemer
17% of 1891 decks +17% synergy
Eyeless Watcher
17% of 1891 decks +17% synergy
Endbringer
17% of 3261 decks +16% synergy
Sire of Seven Deaths
16% of 1106 decks +15% synergy
Drowner of Truth
15% of 1386 decks +13% synergy
Emrakul, the Promised End
14% of 3261 decks +13% synergy
Spawn-Gang Commander
14% of 1706 decks +14% synergy
Twins of Discord
13% of 2115 decks +13% synergy
Sifter of Skulls
13% of 3261 decks +12% synergy
Breaker of Creation
13% of 2211 decks +12% synergy
Mutated Cultist
12% of 2115 decks +12% synergy
Angelic Aberration
12% of 1521 decks +12% synergy
Flayer Drone
11% of 2337 decks +11% synergy
Ulamog's Dreadsire
11% of 2115 decks +10% synergy
Azlask, the Swelling Scourge
11% of 1313 decks +9% synergy
Liberator, Urza's Battlethopter
10% of 3261 decks +9% synergy
Jodah, Archmage Eternal
9% of 1633 decks +6% synergy
Gray Merchant of Asphodel
9% of 3261 decks +0% synergy
Ulamog's Nullifier
9% of 2204 decks +9% synergy
Birds of Paradise
9% of 1891 decks -18% synergy
Instants
Eldritch Immunity
38% of 2115 decks +37% synergy
Kozilek's Command
30% of 2115 decks +29% synergy
Null Elemental Blast
26% of 2233 decks +24% synergy
Swords to Plowshares
25% of 2099 decks -37% synergy
Eldrazi Confluence
23% of 2115 decks +23% synergy
Mana Drain
20% of 2204 decks +5% synergy
Teferi's Protection
19% of 2099 decks +0% synergy
Return of the Wildspeaker
18% of 1891 decks +5% synergy
Counterspell
17% of 2204 decks -26% synergy
Path to Exile
17% of 2099 decks -30% synergy
Crib Swap
16% of 2099 decks +14% synergy
Abstruse Appropriation
15% of 1558 decks +13% synergy
Kozilek's Return
15% of 2337 decks +14% synergy
Dark Ritual
14% of 3261 decks -9% synergy
Heroic Intervention
14% of 1891 decks -16% synergy
Fierce Guardianship
13% of 2204 decks -5% synergy
Chaos Warp
13% of 2337 decks -19% synergy
Warping Wail
12% of 3261 decks +11% synergy
Anguished Unmaking
11% of 2099 decks -13% synergy
Void Shatter
11% of 2204 decks +10% synergy
Deflecting Swat
10% of 2337 decks -6% synergy
Rakdos Charm
10% of 2337 decks -5% synergy
Terminate
9% of 2337 decks -11% synergy
Not of This World
9% of 3261 decks +8% synergy
Bedevil
9% of 2337 decks -5% synergy
Assassin's Trophy
9% of 1891 decks -22% synergy
Arcane Denial
9% of 2204 decks -11% synergy
Titan's Presence
8% of 3261 decks +8% synergy
Spell Shrivel
8% of 2204 decks +8% synergy
Crop Rotation
8% of 1891 decks -1% synergy
An Offer You Can't Refuse
8% of 2204 decks -13% synergy
Deadly Rollick
8% of 3261 decks -3% synergy
Despark
8% of 2099 decks -7% synergy
Worldly Tutor
7% of 1891 decks -6% synergy
Swan Song
7% of 2204 decks -9% synergy
Desecrate Reality
7% of 2978 decks +7% synergy
Beast Within
7% of 1891 decks -30% synergy
Dovin's Veto
7% of 1930 decks -11% synergy
Negate
6% of 2204 decks -16% synergy
Generous Gift
6% of 2099 decks -19% synergy
Mystical Tutor
6% of 2204 decks -9% synergy
Unfathomable Truths
5% of 1574 decks +5% synergy
Withering Torment
5% of 1389 decks -3% synergy
Brainstorm
5% of 2204 decks -15% synergy
Sorceries
Farseek
25% of 1891 decks -9% synergy
Blasphemous Act
24% of 2337 decks -10% synergy
Toxic Deluge
21% of 3261 decks +3% synergy
Cultivate
21% of 1891 decks -24% synergy
Damnation
20% of 3261 decks +13% synergy
Nature's Lore
19% of 1891 decks -13% synergy
Three Visits
19% of 1891 decks -6% synergy
Selective Obliteration
16% of 2115 decks +16% synergy
Rise of the Eldrazi
14% of 2978 decks +13% synergy
Farewell
14% of 2099 decks +1% synergy
Kodama's Reach
13% of 1891 decks -17% synergy
Ancient Stirrings
13% of 1891 decks +13% synergy
Torment of Hailfire
12% of 3261 decks +7% synergy
Rishkar's Expertise
12% of 1891 decks +1% synergy
Vandalblast
11% of 2337 decks -4% synergy
Rampant Growth
11% of 1891 decks -23% synergy
Exsanguinate
11% of 3261 decks +5% synergy
Wrath of God
11% of 2099 decks +5% synergy
Sylvan Scrying
11% of 1891 decks +8% synergy
Tempt with Discovery
11% of 1891 decks +7% synergy
Supreme Verdict
11% of 1930 decks -3% synergy
Damn
10% of 2099 decks -6% synergy
Feed the Swarm
10% of 3261 decks -7% synergy
Last March of the Ents
10% of 1823 decks +6% synergy
Calamity of the Titans
9% of 2978 decks +9% synergy
Decree of Pain
9% of 3261 decks +6% synergy
Sign in Blood
8% of 3261 decks -1% synergy
Blasphemous Edict
8% of 1106 decks +1% synergy
Skittering Invasion
8% of 3261 decks +8% synergy
Deadly Tempest
8% of 3261 decks +7% synergy
Last One Standing
8% of 2337 decks +7% synergy
Chain Reaction
7% of 2337 decks +3% synergy
Diabolic Tutor
7% of 3261 decks +1% synergy
Vanquish the Horde
7% of 2099 decks +3% synergy
Night's Whisper
7% of 3261 decks -2% synergy
Jeska's Will
7% of 2337 decks -10% synergy
Grim Tutor
7% of 3261 decks +2% synergy
Glimpse the Impossible
6% of 1669 decks +5% synergy
Syphon Mind
6% of 3261 decks +3% synergy
Read the Bones
6% of 3261 decks -1% synergy
Austere Command
6% of 2099 decks -7% synergy
Day of Judgment
6% of 2099 decks +4% synergy
Growth Spasm
6% of 1891 decks +5% synergy
Idyllic Tutor
6% of 2099 decks +1% synergy
Skyshroud Claim
5% of 1891 decks -3% synergy
Jokulhaups
5% of 2337 decks +5% synergy
Obliterate
5% of 2337 decks +5% synergy
Replenish
5% of 2099 decks +4% synergy
Utility Artifacts
Urza's Incubator
31% of 3261 decks +28% synergy
Herald's Horn
25% of 3261 decks +19% synergy
Mystic Forge
24% of 3261 decks +21% synergy
Darksteel Monolith
22% of 2978 decks +21% synergy
Fist of Suns
18% of 1633 decks +12% synergy
Lightning Greaves
18% of 3261 decks -7% synergy
Mind Stone
15% of 3261 decks -2% synergy
Hedron Archive
15% of 3261 decks +12% synergy
Expedition Map
14% of 3261 decks +11% synergy
Idol of False Gods
13% of 2153 decks +13% synergy
Eldrazi Monument
11% of 3261 decks +10% synergy
Commander's Sphere
9% of 3261 decks -5% synergy
Swiftfoot Boots
8% of 3261 decks -19% synergy
Wayfarer's Bauble
8% of 3261 decks -1% synergy
Vedalken Orrery
8% of 3261 decks +7% synergy
Sensei's Divining Top
8% of 3261 decks +3% synergy
The Great Henge
8% of 1891 decks -2% synergy
Jet Medallion
7% of 3261 decks +4% synergy
Skullclamp
7% of 3261 decks -5% synergy
Ensnaring Bridge
7% of 3261 decks +7% synergy
Ankh of Mishra
6% of 3261 decks +6% synergy
Dreamstone Hedron
6% of 3261 decks +5% synergy
Crawlspace
6% of 3261 decks +5% synergy
Vanquisher's Banner
6% of 3261 decks +2% synergy
Chimil, the Inner Sun
6% of 2703 decks +4% synergy
Enchantments
Garruk's Uprising
28% of 1891 decks +12% synergy
Up the Beanstalk
24% of 1737 decks +20% synergy
Phyrexian Arena
20% of 3261 decks +5% synergy
Tainted Aether
20% of 3261 decks +20% synergy
No Mercy
20% of 3261 decks +18% synergy
Painful Quandary
16% of 3261 decks +14% synergy
Temur Ascendancy
16% of 1643 decks +2% synergy
Kindred Discovery
16% of 2204 decks +8% synergy
Rhythm of the Wild
15% of 1699 decks -8% synergy
Lethal Vapors
15% of 3261 decks +15% synergy
Mana Maze
14% of 2204 decks +14% synergy
Propaganda
14% of 2204 decks +2% synergy
Ghostly Prison
14% of 2099 decks +2% synergy
Mystic Remora
13% of 2204 decks -4% synergy
Reflections of Littjara
13% of 2204 decks +8% synergy
Sphere of Safety
12% of 2099 decks +8% synergy
Exquisite Blood
12% of 3261 decks +7% synergy
Bloodchief Ascension
12% of 3261 decks +8% synergy
Manabarbs
12% of 2337 decks +10% synergy
Eldrazi Conscription
12% of 3261 decks +11% synergy
Imprisoned in the Moon
11% of 2204 decks +8% synergy
Shadow in the Warp
11% of 1699 decks +8% synergy
Spellshock
10% of 2337 decks +10% synergy
Black Market Connections
10% of 3261 decks -1% synergy
Polluted Bonds
10% of 3261 decks +9% synergy
Wound Reflection
9% of 3261 decks +8% synergy
Underworld Dreams
9% of 3261 decks +7% synergy
Sulfuric Vortex
9% of 2337 decks +8% synergy
Necropotence
9% of 3261 decks +4% synergy
Doubling Season
9% of 1891 decks -1% synergy
Smoke
9% of 2337 decks +8% synergy
Havoc Festival
9% of 2337 decks +8% synergy
Blind Obedience
9% of 2099 decks +2% synergy
Spiteful Visions
9% of 2337 decks +6% synergy
Price of Glory
9% of 2337 decks +8% synergy
Black Market
8% of 3261 decks +4% synergy
The Meathook Massacre
8% of 3261 decks +3% synergy
Cryptolith Rite
8% of 1891 decks +4% synergy
Humility
8% of 2099 decks +8% synergy
Pestilence
8% of 3261 decks +7% synergy
Sanguine Bond
8% of 3261 decks +2% synergy
Sylvan Library
8% of 1891 decks -3% synergy
Leyline of Anticipation
7% of 2204 decks +3% synergy
Authority of the Consuls
7% of 2099 decks +3% synergy
Burning Sands
7% of 2337 decks +7% synergy
Aether Flash
7% of 2337 decks +7% synergy
Descent into Avernus
7% of 2337 decks +3% synergy
Citadel of Pain
6% of 2337 decks +6% synergy
Monstrous Vortex
6% of 1427 decks +4% synergy
Revel in Riches
6% of 3261 decks +3% synergy
Planeswalkers
Ugin, the Ineffable
31% of 3261 decks +29% synergy
Ugin, the Spirit Dragon
19% of 3261 decks +17% synergy
Ashiok, Dream Render
8% of 2204 decks +4% synergy
Nicol Bolas, Dragon-God
7% of 1786 decks +3% synergy
Narset, Parter of Veils
7% of 2204 decks +2% synergy
Chandra, Awakened Inferno
7% of 2337 decks +5% synergy
Teferi, Time Raveler
5% of 1930 decks -1% synergy
Nicol Bolas, God-Pharaoh
5% of 1786 decks +2% synergy
Teferi, Master of Time
5% of 2204 decks +3% synergy
Utility Lands
Eldrazi Temple
40% of 3261 decks +39% synergy
Reliquary Tower
36% of 3261 decks +7% synergy
Shrine of the Forsaken Gods
32% of 3261 decks +31% synergy
Eye of Ugin
29% of 3261 decks +29% synergy
Ugin's Labyrinth
27% of 2233 decks +26% synergy
Urborg, Tomb of Yawgmoth
24% of 3261 decks +14% synergy
Tomb of the Spirit Dragon
22% of 3261 decks +21% synergy
Cascading Cataracts
22% of 3261 decks +20% synergy
Bojuka Bog
21% of 3261 decks -9% synergy
Sanctum of Ugin
19% of 3261 decks +18% synergy
Urza's Tower
18% of 3261 decks +16% synergy
Urza's Power Plant
17% of 3261 decks +16% synergy
Urza's Mine
17% of 3261 decks +16% synergy
Cabal Coffers
15% of 3261 decks +4% synergy
Temple of the False God
14% of 3261 decks +5% synergy
Bonders' Enclave
12% of 3261 decks +10% synergy
Urza's Saga
10% of 3261 decks +3% synergy
Yavimaya, Cradle of Growth
10% of 3261 decks +1% synergy
Spawning Bed
10% of 3261 decks +9% synergy
Hall of Heliod's Generosity
9% of 2099 decks +3% synergy
Maze of Ith
9% of 3261 decks +6% synergy
Rogue's Passage
9% of 3261 decks -11% synergy
Three Tree City
9% of 1740 decks +3% synergy
Thespian's Stage
8% of 3261 decks +6% synergy
Tectonic Edge
8% of 3261 decks +7% synergy
Scavenger Grounds
7% of 3261 decks +4% synergy
Nykthos, Shrine to Nyx
7% of 3261 decks +1% synergy
Urza's Workshop
6% of 3261 decks +5% synergy
Strip Mine
6% of 3261 decks +3% synergy
Boseiju, Who Endures
6% of 1891 decks -13% synergy
Alchemist's Refuge
5% of 1756 decks -1% synergy
Field of the Dead
5% of 3261 decks +2% synergy
Vesuva
5% of 3261 decks +4% synergy
Mana Artifacts
Sol Ring
87% of 3261 decks +3% synergy
Arcane Signet
73% of 3261 decks +0% synergy
Talisman of Curiosity
40% of 1756 decks +27% synergy
Talisman of Impulse
34% of 1699 decks +24% synergy
Talisman of Resilience
32% of 1891 decks +20% synergy
Talisman of Dominance
32% of 2204 decks +0% synergy
Chromatic Lantern
30% of 3261 decks +20% synergy
Thran Dynamo
27% of 3261 decks +22% synergy
Fellwar Stone
23% of 3261 decks +2% synergy
Rakdos Signet
18% of 2337 decks -11% synergy
Talisman of Indulgence
18% of 2337 decks -9% synergy
Thought Vessel
16% of 3261 decks -1% synergy
Everflowing Chalice
13% of 3261 decks +8% synergy
Talisman of Creativity
12% of 1786 decks -17% synergy
Basalt Monolith
11% of 3261 decks +9% synergy
Talisman of Hierarchy
11% of 2099 decks -14% synergy
Chromatic Orrery
11% of 3261 decks +9% synergy
Dimir Signet
10% of 2204 decks -19% synergy
Mana Crypt
10% of 3261 decks +4% synergy
Timeless Lotus
10% of 1633 decks -2% synergy
Orzhov Signet
10% of 2099 decks -17% synergy
Talisman of Progress
9% of 1930 decks -15% synergy
Talisman of Unity
8% of 1706 decks +0% synergy
Worn Powerstone
7% of 3261 decks +4% synergy
Gilded Lotus
7% of 3261 decks +4% synergy
Azorius Signet
7% of 1930 decks -18% synergy
Charcoal Diamond
6% of 3261 decks +1% synergy
Talisman of Conviction
6% of 1703 decks -18% synergy
Lands
Command Tower
78% of 3261 decks +4% synergy
Yavimaya Coast
56% of 1756 decks +29% synergy
Llanowar Wastes
52% of 1891 decks +26% synergy
Karplusan Forest
52% of 1699 decks +35% synergy
Shivan Reef
51% of 1786 decks +24% synergy
Brushland
49% of 1706 decks +32% synergy
Underground River
45% of 2204 decks +25% synergy
Caves of Koilos
44% of 2099 decks +15% synergy
Battlefield Forge
44% of 1703 decks +18% synergy
Adarkar Wastes
44% of 1930 decks +25% synergy
Sulfurous Springs
44% of 2337 decks +23% synergy
Exotic Orchard
42% of 3261 decks +6% synergy
The World Tree
35% of 1633 decks +3% synergy
Path of Ancestry
29% of 3261 decks +7% synergy
Watery Grave
28% of 2204 decks -12% synergy
Corrupted Crossroads
28% of 3261 decks +27% synergy
Unclaimed Territory
27% of 3261 decks +22% synergy
Secluded Courtyard
27% of 3261 decks +22% synergy
Twisted Landscape
26% of 1320 decks +14% synergy
Tranquil Landscape
26% of 1316 decks +16% synergy
Blood Crypt
24% of 2337 decks -14% synergy
Godless Shrine
24% of 2099 decks -17% synergy
Breeding Pool
24% of 1756 decks -17% synergy
Overgrown Tomb
23% of 1891 decks -19% synergy
Hallowed Fountain
22% of 1930 decks -18% synergy
Cavern of Souls
21% of 3261 decks +13% synergy
Urza's Cave
20% of 2233 decks +18% synergy
Polluted Delta
20% of 3261 decks +8% synergy
Zagoth Triome
19% of 1756 decks -10% synergy
Temple Garden
19% of 1706 decks -21% synergy
Steam Vents
19% of 1786 decks -19% synergy
Ketria Triome
18% of 1643 decks -14% synergy
Stomping Ground
18% of 1699 decks -22% synergy
Bloodstained Mire
18% of 3261 decks +7% synergy
Dragonskull Summit
16% of 2337 decks -16% synergy
Marsh Flats
16% of 3261 decks +5% synergy
Luxury Suite
15% of 2337 decks -11% synergy
Verdant Catacombs
15% of 3261 decks +4% synergy
Raffine's Tower
14% of 1930 decks -12% synergy
Indatha Triome
14% of 1706 decks -16% synergy
Smoldering Marsh
14% of 2337 decks -19% synergy
Reflecting Pool
14% of 3261 decks +8% synergy
Misty Rainforest
14% of 3261 decks +2% synergy
Flooded Strand
13% of 3261 decks +3% synergy
Spara's Headquarters
13% of 1681 decks -16% synergy
City of Brass
13% of 3261 decks +5% synergy
Morphic Pool
13% of 2204 decks -13% synergy
Ziatora's Proving Ground
12% of 1699 decks -18% synergy
Mana Confluence
12% of 3261 decks +5% synergy
Scalding Tarn
12% of 3261 decks +1% synergy