Mass Diminish (Card)

Mass Diminish
In 11831 decks 0.35% of 3339689 decks
Background image for Do Your Worst - Izzet Lifegain
Philomène Gatien
Mar 23, 2022
Do Your Worst - Izzet Lifegain
Red and blue can't build a lifegain strategy, right? Right? RIGHT!??!?
Cardsphere
Archidekt
Commander Spellbook
Moxfield
Scryfall
MTGStocks
Toxrill, the Corrosive
56.26% of 7287 decks 4100 decks
Ghyrson Starn, Kelermorph
6.22% of 17928 decks 1115 decks
Neerdiv, Devious Diver
34.75% of 1934 decks 672 decks
Sephiroth, Planet's Heir
29.83% of 1777 decks 530 decks
Skeleton Ship
44.76% of 1012 decks 453 decks
Doc Aurlock, Grizzled Genius
31.32% of 1223 decks 383 decks
Sevinne, the Chronoclasm
38.80% of 902 decks 350 decks
Silumgar, the Drifting Death
65.02% of 446 decks 290 decks
Lord of the Nazgûl
2.25% of 11880 decks 267 decks
Tibor and Lumia
50.57% of 435 decks 220 decks
Vega, the Watcher
12.85% of 1183 decks 152 decks
Gandalf, Friend of the Shire
19.84% of 630 decks 125 decks
Elsha of the Infinite
2.29% of 4624 decks 106 decks
Flubs, the Fool
0.66% of 15925 decks 105 decks
Talrand, Sky Summoner
1.36% of 6010 decks 82 decks
Niv-Mizzet, Parun
0.44% of 16071 decks 70 decks
Aegar, the Freezing Flame
2.19% of 2873 decks 63 decks
Marchesa, Dealer of Death
1.08% of 5093 decks 55 decks
Volrath, the Shapestealer
1.68% of 3160 decks 53 decks
Octavia, Living Thesis
1.39% of 3737 decks 52 decks
New Cards
Oscorp Industries
25% of 8 decks +25% synergy
Ultimate Green Goblin
17% of 12 decks +16% synergy
Carnage, Crimson Chaos
5% of 37 decks +5% synergy
Green Goblin, Revenant
5% of 40 decks +5% synergy
Drix Fatemaker
4% of 200 decks +4% synergy
High Synergy Cards
Maha, Its Feathers Night
61% of 4844 decks +61% synergy
Counterspell
60% of 11831 decks +60% synergy
Dark Ritual
58% of 6627 decks +57% synergy
Massacre Wurm
57% of 6627 decks +57% synergy
Blood Artist
54% of 6627 decks +54% synergy
Black Market
52% of 6627 decks +51% synergy
Massacre Girl, Known Killer
50% of 5906 decks +50% synergy
Reliquary Tower
46% of 11831 decks +45% synergy
Slaughter Specialist
45% of 6627 decks +45% synergy
Polymorphist's Jest
44% of 11831 decks +44% synergy
Top Cards
Sudden Spoiling
43% of 6627 decks +43% synergy
Swiftfoot Boots
43% of 11831 decks +43% synergy
Cultivate
41% of 1218 decks +41% synergy
Swords to Plowshares
40% of 1339 decks +40% synergy
Sevinne's Reclamation
40% of 1339 decks +40% synergy
Clackbridge Troll
40% of 6627 decks +40% synergy
Negate
40% of 11831 decks +39% synergy
Feed the Swarm
39% of 6627 decks +38% synergy
Flatline
39% of 11533 decks +38% synergy
Divine Reckoning
38% of 1339 decks +38% synergy
Game Changers
Demonic Tutor
24% of 6627 decks +24% synergy
Rhystic Study
23% of 11831 decks +23% synergy
Cyclonic Rift
20% of 11831 decks +19% synergy
Vampiric Tutor
17% of 6627 decks +17% synergy
Fierce Guardianship
14% of 11831 decks +14% synergy
Jeska's Will
14% of 3163 decks +14% synergy
Notion Thief
13% of 6627 decks +13% synergy
Bolas's Citadel
10% of 6627 decks +10% synergy
Smothering Tithe
9% of 1339 decks +9% synergy
Mystical Tutor
9% of 11831 decks +9% synergy
Creatures
Morbid Opportunist
38% of 6627 decks +38% synergy
Gisa, Glorious Resurrector
38% of 6627 decks +38% synergy
Niv-Mizzet, Parun
38% of 3163 decks +37% synergy
Thermo-Alchemist
34% of 3163 decks +33% synergy
Rootcoil Creeper
34% of 1218 decks +33% synergy
Sludge Monster
33% of 11831 decks +33% synergy
Syr Konrad, the Grim
32% of 6627 decks +32% synergy
Goblin Electromancer
31% of 3163 decks +31% synergy
Kykar, Wind's Fury
31% of 764 decks +31% synergy
Mirkwood Bats
30% of 6627 decks +30% synergy
Savvy Trader
30% of 1084 decks +29% synergy
Kessig Flamebreather
29% of 3163 decks +29% synergy
Thrummingbird
29% of 11831 decks +29% synergy
Ayara, First of Locthwain
29% of 6627 decks +29% synergy
Firebrand Archer
29% of 3163 decks +28% synergy
Elsha of the Infinite
29% of 764 decks +28% synergy
Yawgmoth, Thran Physician
28% of 6627 decks +28% synergy
Hapatra, Vizier of Poisons
28% of 272 decks +28% synergy
Gelectrode
28% of 3163 decks +27% synergy
Electrostatic Field
28% of 3163 decks +27% synergy
Railway Brawler
28% of 1090 decks +27% synergy
Flux Channeler
27% of 11831 decks +27% synergy
Outcaster Trailblazer
27% of 1089 decks +27% synergy
Spitting Dilophosaurus
27% of 6300 decks +26% synergy
Storm-Kiln Artist
27% of 3163 decks +26% synergy
Tlincalli Hunter
26% of 1218 decks +25% synergy
Beanstalk Giant
26% of 1218 decks +25% synergy
Battle Mammoth
25% of 1218 decks +25% synergy
Obelisk Spider
25% of 272 decks +25% synergy
Kellan, Inquisitive Prodigy
25% of 1148 decks +25% synergy
Zulaport Cutthroat
25% of 6627 decks +25% synergy
Stormkeld Vanguard
24% of 1218 decks +23% synergy
Exalted Flamer of Tzeentch
24% of 3163 decks +23% synergy
Guttersnipe
24% of 3163 decks +23% synergy
Coruscation Mage
24% of 2172 decks +23% synergy
Necroskitter
23% of 6627 decks +23% synergy
Niv-Mizzet, the Firemind
22% of 3163 decks +22% synergy
Drivnod, Carnage Dominus
22% of 6627 decks +22% synergy
Young Pyromancer
20% of 3163 decks +20% synergy
Unruly Catapult
20% of 3163 decks +20% synergy
Thalia's Geistcaller
20% of 1339 decks +20% synergy
Vega, the Watcher
20% of 1339 decks +20% synergy
Erebor Flamesmith
20% of 3163 decks +20% synergy
Spark Double
20% of 11831 decks +19% synergy
Scheming Aspirant
19% of 6627 decks +19% synergy
Tekuthal, Inquiry Dominus
19% of 11831 decks +19% synergy
Third Path Iconoclast
19% of 3163 decks +19% synergy
Chandra's Incinerator
19% of 3163 decks +19% synergy
Baleful Strix
19% of 6627 decks +18% synergy
Hunted Phantasm
19% of 11831 decks +18% synergy
Instants
Prismatic Strands
31% of 1339 decks +31% synergy
Whisper of the Dross
31% of 6627 decks +31% synergy
Beast Within
30% of 1218 decks +30% synergy
Electrickery
30% of 3163 decks +30% synergy
Electrolyze
29% of 3163 decks +28% synergy
Faithful Mending
29% of 1339 decks +28% synergy
Chaos Warp
28% of 3163 decks +28% synergy
Ancient Grudge
28% of 311 decks +27% synergy
Path to Exile
27% of 1339 decks +27% synergy
Growth Spiral
27% of 1218 decks +26% synergy
Brainstorm
26% of 11831 decks +26% synergy
Moment's Peace
26% of 1218 decks +25% synergy
Arcane Denial
25% of 11831 decks +24% synergy
An Offer You Can't Refuse
24% of 11831 decks +24% synergy
Grim Affliction
24% of 6627 decks +23% synergy
Ray of Distortion
20% of 1339 decks +20% synergy
Swan Song
20% of 11831 decks +20% synergy
Pongify
20% of 11831 decks +20% synergy
Withering Torment
19% of 4429 decks +19% synergy
Izzet Charm
18% of 3163 decks +18% synergy
Assassin's Trophy
18% of 272 decks +18% synergy
Increasing Vengeance
18% of 3163 decks +18% synergy
Experimental Augury
18% of 11831 decks +17% synergy
Mana Drain
18% of 11831 decks +17% synergy
Mandate of Peace
18% of 1339 decks +17% synergy
Rakdos Charm
17% of 311 decks +17% synergy
Frantic Search
17% of 11831 decks +17% synergy
Terminate
17% of 311 decks +17% synergy
Spikefield Hazard
17% of 3163 decks +16% synergy
Generous Gift
16% of 1339 decks +16% synergy
Dovin's Veto
16% of 1339 decks +15% synergy
Heroic Intervention
15% of 1218 decks +15% synergy
Bedevil
15% of 311 decks +15% synergy
Galvanic Iteration
15% of 3163 decks +15% synergy
Think Twice
15% of 11831 decks +15% synergy
Rapid Hybridization
15% of 11831 decks +15% synergy
Purify the Grave
14% of 1339 decks +14% synergy
Cast into the Fire
14% of 3163 decks +14% synergy
Tragic Slip
14% of 6627 decks +14% synergy
Steady Progress
14% of 11831 decks +14% synergy
Countersquall
14% of 6627 decks +14% synergy
Gut Shot
14% of 3163 decks +13% synergy
Anguished Unmaking
13% of 215 decks +13% synergy
Malakir Rebirth
13% of 6627 decks +13% synergy
Opt
13% of 11831 decks +13% synergy
Void Rend
13% of 215 decks +13% synergy
Putrefy
13% of 272 decks +13% synergy
Lightning Bolt
13% of 3163 decks +12% synergy
Needle Drop
13% of 3163 decks +12% synergy
Boros Charm
12% of 764 decks +12% synergy
Sorceries
Toxic Deluge
36% of 6627 decks +36% synergy
Faithless Looting
35% of 3163 decks +35% synergy
Croaking Counterpart
34% of 1218 decks +33% synergy
End the Festivities
33% of 3163 decks +32% synergy
Drown in Ichor
32% of 6627 decks +32% synergy
Grapeshot
30% of 3163 decks +29% synergy
Blazing Volley
29% of 3163 decks +29% synergy
Dusk // Dawn
29% of 1339 decks +28% synergy
Increasing Devotion
27% of 1339 decks +27% synergy
Tezzeret's Gambit
27% of 11831 decks +27% synergy
Rampant Growth
27% of 1218 decks +27% synergy
Smash to Dust
26% of 3163 decks +26% synergy
Kodama's Reach
26% of 1218 decks +25% synergy
Tectonic Hazard
25% of 2985 decks +25% synergy
Make Your Own Luck
25% of 1092 decks +24% synergy
Farseek
23% of 1218 decks +23% synergy
Blasphemous Act
23% of 3163 decks +22% synergy
Contentious Plan
22% of 11831 decks +22% synergy
Reanimate
21% of 6627 decks +21% synergy
Nature's Lore
21% of 1218 decks +21% synergy
Mystic Retrieval
21% of 3163 decks +20% synergy
Farm // Market
21% of 1339 decks +20% synergy
Increasing Savagery
20% of 1218 decks +20% synergy
Vandalblast
20% of 3163 decks +20% synergy
Scouring Sands
19% of 3163 decks +19% synergy
Black Sun's Zenith
19% of 6627 decks +19% synergy
Sign in Blood
19% of 6627 decks +18% synergy
Dryad's Revival
19% of 1218 decks +18% synergy
Deep Analysis
18% of 11831 decks +18% synergy
Esper Origins
18% of 322 decks +17% synergy
Tumbleweed Rising
17% of 1089 decks +17% synergy
Ponder
17% of 11831 decks +17% synergy
Expressive Iteration
17% of 3163 decks +17% synergy
Curse of the Swine
16% of 11831 decks +15% synergy
Unburial Rites
15% of 215 decks +15% synergy
Ignite the Future
15% of 3163 decks +15% synergy
Read the Bones
15% of 6627 decks +15% synergy
Three Visits
15% of 1218 decks +14% synergy
Preordain
15% of 11831 decks +14% synergy
Ravenform
14% of 11831 decks +14% synergy
Wreck and Rebuild
13% of 307 decks +13% synergy
Flame Fusillade
13% of 3163 decks +13% synergy
Devil's Play
13% of 3163 decks +13% synergy
Past in Flames
13% of 3163 decks +12% synergy
Vengeful Regrowth
12% of 1080 decks +12% synergy
Tracker's Instincts
12% of 1218 decks +12% synergy
Storm Herd
12% of 1339 decks +12% synergy
Fear, Fire, Foes!
12% of 3163 decks +11% synergy
Deep Reconnaissance
12% of 1218 decks +11% synergy
Asinine Antics
12% of 11831 decks +11% synergy
Utility Artifacts
Lightning Greaves
37% of 11831 decks +36% synergy
Skullclamp
23% of 11831 decks +22% synergy
Contagion Clasp
19% of 11831 decks +19% synergy
Contagion Engine
14% of 11831 decks +14% synergy
Wayfarer's Bauble
14% of 11831 decks +14% synergy
The Darkness Crystal
13% of 1836 decks +13% synergy
Basilisk Collar
12% of 11831 decks +12% synergy
Genesis Chamber
12% of 11831 decks +12% synergy
Conduit of Worlds
11% of 1218 decks +11% synergy
Sapphire Medallion
11% of 11831 decks +11% synergy
Kormus Bell
11% of 11831 decks +11% synergy
Mithril Coat
10% of 11831 decks +9% synergy
Jet Medallion
9% of 11831 decks +9% synergy
Ashnod's Altar
9% of 11831 decks +9% synergy
The Masamune
9% of 2635 decks +8% synergy
Isochron Scepter
7% of 11831 decks +7% synergy
Gorgon's Head
7% of 11831 decks +6% synergy
Helm of the Host
6% of 11831 decks +6% synergy
Monster Manual
5% of 1218 decks +5% synergy
Enchantments
Whirlwind of Thought
33% of 764 decks +33% synergy
The Meathook Massacre
31% of 6627 decks +31% synergy
Ghostly Prison
29% of 1339 decks +28% synergy
Nest of Scarabs
28% of 6627 decks +28% synergy
Song of Creation
27% of 311 decks +27% synergy
Revel in Riches
26% of 6627 decks +26% synergy
Jeskai Ascendancy
25% of 764 decks +25% synergy
Propaganda
24% of 11831 decks +24% synergy
Inexorable Tide
23% of 11831 decks +23% synergy
Phyrexian Arena
23% of 6627 decks +22% synergy
Blowfly Infestation
20% of 6627 decks +20% synergy
Virtue of Strength
20% of 1218 decks +19% synergy
Circle of Flame
20% of 3163 decks +19% synergy
Crumbling Ashes
19% of 6627 decks +18% synergy
Impact Tremors
18% of 3163 decks +17% synergy
Grave Betrayal
17% of 6627 decks +17% synergy
Kaya's Ghostform
14% of 6627 decks +14% synergy
Manabarbs
14% of 3163 decks +13% synergy
Quicksilver Dagger
13% of 3163 decks +13% synergy
Black Market Connections
13% of 6627 decks +12% synergy
Curiosity
12% of 11831 decks +11% synergy
Mystic Remora
11% of 11831 decks +11% synergy
Thousand-Year Storm
11% of 3163 decks +11% synergy
Repercussion
11% of 3163 decks +11% synergy
Hollowmurk Siege
10% of 110 decks +10% synergy
Kellan Joins Up
10% of 214 decks +9% synergy
Pariah
9% of 1339 decks +9% synergy
Burning Vengeance
9% of 3163 decks +9% synergy
Secrets of the Dead
9% of 11831 decks +9% synergy
Fiery Inscription
9% of 3163 decks +8% synergy
Infernal Genesis
8% of 6627 decks +8% synergy
Dragonback Assault
8% of 97 decks +8% synergy
Freed from the Real
8% of 11831 decks +8% synergy
Brokers Ascendancy
8% of 235 decks +7% synergy
Aether Sting
8% of 3163 decks +7% synergy
Rhythm of the Wild
7% of 311 decks +7% synergy
Roiling Vortex
7% of 3163 decks +7% synergy
Ophidian Eye
7% of 11831 decks +7% synergy
Grave Pact
7% of 6627 decks +7% synergy
Meathook Massacre II
7% of 4443 decks +7% synergy
Glacierwood Siege
7% of 450 decks +6% synergy
Monk Class
7% of 1339 decks +6% synergy
Bastion of Remembrance
7% of 6627 decks +6% synergy
Jace's Sanctum
6% of 11831 decks +6% synergy
Garruk's Uprising
6% of 1218 decks +6% synergy
Ethereal Absolution
6% of 215 decks +6% synergy
Dictate of Erebos
6% of 6627 decks +6% synergy
Animate Dead
6% of 6627 decks +6% synergy
Exploration
6% of 1218 decks +6% synergy
Pemmin's Aura
6% of 11831 decks +5% synergy
Planeswalkers
Vraska, Betrayal's Sting
22% of 6627 decks +22% synergy
Ral, Storm Conduit
19% of 3163 decks +19% synergy
Narset of the Ancient Way
9% of 764 decks +9% synergy
Saheeli Rai
8% of 3163 decks +8% synergy
Ral Zarek
6% of 3163 decks +5% synergy
Chandra, Awakened Inferno
6% of 3163 decks +5% synergy
Tamiyo, Field Researcher
6% of 235 decks +5% synergy
Saheeli, Sublime Artificer
5% of 3163 decks +5% synergy
Liliana, Death Wielder
5% of 6627 decks +5% synergy
Utility Lands
Bojuka Bog
42% of 6627 decks +41% synergy
Cabal Coffers
29% of 6627 decks +28% synergy
Karn's Bastion
25% of 11831 decks +25% synergy
Shivan Gorge
23% of 3163 decks +22% synergy
Urborg, Tomb of Yawgmoth
22% of 11831 decks +22% synergy
Mystic Sanctuary
20% of 11831 decks +20% synergy
Rogue's Passage
16% of 11831 decks +16% synergy
Alchemist's Refuge
15% of 1218 decks +15% synergy
Temple of the False God
13% of 11831 decks +13% synergy
Phyrexian Tower
13% of 6627 decks +13% synergy
Otawara, Soaring City
12% of 11831 decks +12% synergy
Lindblum, Industrial Regency
12% of 714 decks +11% synergy
Boseiju, Who Endures
11% of 1218 decks +11% synergy
Desolate Lighthouse
9% of 3163 decks +9% synergy
Takenuma, Abandoned Mire
9% of 6627 decks +8% synergy
Command Beacon
9% of 11831 decks +8% synergy
Mosswort Bridge
8% of 1218 decks +8% synergy
Mortuary Mire
7% of 6627 decks +7% synergy
Kessig Wolf Run
7% of 311 decks +7% synergy
Forgotten Cave
7% of 3163 decks +7% synergy
Midgar, City of Mako
7% of 1579 decks +6% synergy
Ancient Tomb
7% of 11831 decks +6% synergy
Mistrise Village
6% of 4646 decks +6% synergy
Vault of the Archangel
5% of 215 decks +5% synergy
Mana Artifacts
Sol Ring
85% of 11831 decks +85% synergy
Arcane Signet
77% of 11831 decks +76% synergy
Dimir Signet
59% of 6627 decks +59% synergy
Talisman of Dominance
52% of 6627 decks +52% synergy
Izzet Signet
49% of 3163 decks +48% synergy
Azorius Signet
37% of 1339 decks +37% synergy
Thought Vessel
34% of 11831 decks +34% synergy
Talisman of Creativity
30% of 3163 decks +30% synergy
Boros Signet
29% of 764 decks +29% synergy
Mind Stone
25% of 11831 decks +25% synergy
Rakdos Signet
25% of 311 decks +25% synergy
Fellwar Stone
24% of 11831 decks +24% synergy
Talisman of Hierarchy
23% of 215 decks +22% synergy
Simic Signet
22% of 1218 decks +22% synergy
Orzhov Signet
22% of 215 decks +22% synergy
Talisman of Indulgence
21% of 311 decks +21% synergy
Commander's Sphere
20% of 11831 decks +20% synergy
Talisman of Conviction
18% of 764 decks +18% synergy
Talisman of Progress
18% of 1339 decks +17% synergy
Everflowing Chalice
15% of 11831 decks +14% synergy
Talisman of Curiosity
14% of 1218 decks +14% synergy
Midnight Clock
12% of 11831 decks +12% synergy
Azorius Locket
12% of 1339 decks +11% synergy
Thran Dynamo
11% of 11831 decks +11% synergy
Sky Diamond
11% of 11831 decks +11% synergy
Relic of Sauron
11% of 311 decks +10% synergy
Charcoal Diamond
10% of 6627 decks +10% synergy
Golgari Signet
10% of 272 decks +10% synergy
Talisman of Impulse
9% of 311 decks +9% synergy
Izzet Locket
9% of 3163 decks +9% synergy
Fire Diamond
9% of 3163 decks +8% synergy
Talisman of Resilience
8% of 272 decks +7% synergy
Decanter of Endless Water
7% of 11831 decks +6% synergy
Marble Diamond
6% of 1339 decks +6% synergy
Selesnya Signet
6% of 235 decks +6% synergy
Replicating Ring
6% of 11831 decks +5% synergy
Gruul Signet
5% of 311 decks +5% synergy
Worn Powerstone
5% of 11831 decks +5% synergy
Lands
Command Tower
77% of 11831 decks +76% synergy
Mystic Monastery
74% of 764 decks +74% synergy
Sunken Hollow
68% of 6627 decks +68% synergy
Drowned Catacomb
56% of 6627 decks +56% synergy
Prairie Stream
56% of 1339 decks +56% synergy
Crumbling Necropolis
54% of 311 decks +54% synergy
Sulfur Falls
54% of 3163 decks +53% synergy
Hinterland Harbor
50% of 1218 decks +50% synergy
Boros Garrison
48% of 764 decks +48% synergy
Shipwreck Marsh
48% of 6627 decks +48% synergy
Watery Grave
45% of 6627 decks +45% synergy
Frontier Bivouac
45% of 311 decks +45% synergy
Opulent Palace
45% of 272 decks +44% synergy
Izzet Boilerworks
44% of 3163 decks +44% synergy
Tainted Isle
42% of 6627 decks +42% synergy
Arcane Sanctum
41% of 215 decks +41% synergy
Azorius Chancery
41% of 1339 decks +40% synergy
Choked Estuary
39% of 6627 decks +39% synergy
Morphic Pool
38% of 6627 decks +38% synergy
Dimir Aqueduct
38% of 6627 decks +38% synergy
Temple of Epiphany
38% of 3163 decks +37% synergy
Seaside Citadel
37% of 235 decks +37% synergy
Simic Growth Chamber
37% of 1218 decks +37% synergy
Zagoth Triome
36% of 272 decks +36% synergy
Wind-Scarred Crag
35% of 764 decks +35% synergy
Dreamroot Cascade
35% of 1218 decks +35% synergy
Yavimaya Coast
35% of 1218 decks +34% synergy
Dragonskull Summit
34% of 311 decks +33% synergy
Cinder Glade
34% of 311 decks +33% synergy
Spara's Headquarters
33% of 235 decks +33% synergy
Glacial Fortress
33% of 1339 decks +32% synergy
Raffine's Tower
33% of 215 decks +32% synergy
Rejuvenating Springs
32% of 1218 decks +32% synergy
Frostboil Snarl
32% of 3163 decks +32% synergy
Temple of Deceit
32% of 6627 decks +32% synergy
Stormcarved Coast
32% of 3163 decks +32% synergy
Steam Vents
32% of 3163 decks +32% synergy
Smoldering Marsh
32% of 311 decks +31% synergy
Ketria Triome
31% of 311 decks +31% synergy
Canopy Vista
31% of 235 decks +31% synergy
Overgrown Tomb
31% of 272 decks +31% synergy
Darkwater Catacombs
31% of 6627 decks +30% synergy
Xander's Lounge
31% of 311 decks +30% synergy
Shivan Reef
31% of 3163 decks +30% synergy
Training Center
30% of 3163 decks +29% synergy
Exotic Orchard
29% of 11831 decks +29% synergy
Temple of Mystery
29% of 1218 decks +29% synergy
Breeding Pool
29% of 1218 decks +29% synergy
Underground River
29% of 6627 decks +29% synergy
Temple Garden
28% of 235 decks +28% synergy