Street Spasm (Card)
Street Spasm
In 2221 decks
0.07% of 3345273 decks
Rosheen, Roaring Prophet
12.56% of 1449 decks
182 decks
Raggadragga, Goreguts Boss
2.03% of 7846 decks
159 decks
Krenko, Mob Boss
0.34% of 31371 decks
107 decks
Imodane, the Pyrohammer
1.13% of 8153 decks
92 decks
Magus Lucea Kane
0.74% of 12437 decks
92 decks
Judith, Carnage Connoisseur
0.79% of 11288 decks
89 decks
Mizzix of the Izmagnus
1.30% of 5151 decks
67 decks
Rosheen Meanderer
8.87% of 744 decks
66 decks
Niv-Mizzet, Parun
0.32% of 16071 decks
51 decks
Yurlok of Scorch Thrash
0.56% of 8592 decks
48 decks
Marath, Will of the Wild
1.17% of 2739 decks
32 decks
Ghyrson Starn, Kelermorph
0.18% of 17928 decks
32 decks
Rowan, Scion of War
0.28% of 10130 decks
28 decks
Aegar, the Freezing Flame
0.94% of 2873 decks
27 decks
Magnus the Red
0.60% of 4534 decks
27 decks
Niv-Mizzet, the Firemind
2.18% of 1055 decks
23 decks
Kaza, Roil Chaser
1.69% of 1305 decks
22 decks
Vivi Ornitier
0.12% of 17072 decks
20 decks
Melek, Izzet Paragon
1.21% of 1565 decks
19 decks
Firesong and Sunspeaker
0.49% of 3890 decks
19 decks
New Cards
Inspirit, Flagship Vessel
13% of 15 decks
+13% synergy
Fire Lord Ozai
13% of 23 decks
+13% synergy
Terrasymbiosis
9% of 122 decks
+9% synergy
Mutinous Massacre
7% of 45 decks
+7% synergy
Adagia, Windswept Bastion
6% of 50 decks
+6% synergy
High Synergy Cards
Naya Charm
47% of 127 decks
+47% synergy
Goblin Electromancer
38% of 723 decks
+38% synergy
Cultivate
37% of 906 decks
+37% synergy
Kessig Wolf Run
37% of 906 decks
+36% synergy
Hydroid Krasis
36% of 194 decks
+36% synergy
Boros Charm
36% of 289 decks
+36% synergy
Lavalanche
34% of 113 decks
+34% synergy
Vitu-Ghazi, the City-Tree
32% of 127 decks
+32% synergy
Garruk's Uprising
32% of 906 decks
+32% synergy
Behemoth Sledge
31% of 127 decks
+31% synergy
Top Cards
Llanowar Elves
31% of 906 decks
+31% synergy
Rampant Growth
30% of 906 decks
+30% synergy
Animist's Awakening
30% of 906 decks
+30% synergy
Belbe, Corrupted Observer
28% of 113 decks
+28% synergy
Counterspell
28% of 723 decks
+27% synergy
Ignoble Hierarch
27% of 113 decks
+27% synergy
Fiery Justice
27% of 127 decks
+27% synergy
Elvish Mystic
26% of 906 decks
+26% synergy
Swiftfoot Boots
26% of 2221 decks
+26% synergy
Clan Defiance
26% of 906 decks
+26% synergy
Game Changers
Cyclonic Rift
18% of 723 decks
+17% synergy
Bolas's Citadel
9% of 368 decks
+9% synergy
Jeska's Will
9% of 2221 decks
+9% synergy
Demonic Tutor
8% of 368 decks
+8% synergy
Rhystic Study
7% of 723 decks
+7% synergy
Mystical Tutor
6% of 723 decks
+6% synergy
Vampiric Tutor
6% of 368 decks
+6% synergy
Deflecting Swat
6% of 2221 decks
+6% synergy
Smothering Tithe
6% of 289 decks
+6% synergy
Enlightened Tutor
6% of 289 decks
+6% synergy
Creatures
Kiora's Follower
26% of 194 decks
+26% synergy
Rosheen Meanderer
25% of 906 decks
+24% synergy
Gahiji, Honored One
24% of 127 decks
+24% synergy
Rakeclaw Gargantuan
24% of 127 decks
+24% synergy
Sporocyst
24% of 906 decks
+24% synergy
Apocalypse Hydra
24% of 906 decks
+23% synergy
Savageborn Hydra
23% of 906 decks
+23% synergy
Lifeblood Hydra
23% of 906 decks
+23% synergy
Nexos
23% of 906 decks
+23% synergy
Goblin Anarchomancer
22% of 906 decks
+22% synergy
Mayael the Anima
21% of 127 decks
+21% synergy
Genesis Hydra
21% of 906 decks
+21% synergy
Nyxborn Hydra
21% of 722 decks
+21% synergy
Tervigon
21% of 906 decks
+20% synergy
Aberrant
20% of 906 decks
+20% synergy
Ravener
20% of 194 decks
+20% synergy
Goldvein Hydra
20% of 772 decks
+20% synergy
Voracious Hydra
20% of 906 decks
+20% synergy
Guttersnipe
19% of 2221 decks
+19% synergy
Rampaging Yao Guai
18% of 796 decks
+18% synergy
Zhur-Taa Druid
18% of 906 decks
+17% synergy
Fyndhorn Elves
17% of 906 decks
+17% synergy
Mawloc
17% of 906 decks
+17% synergy
Archmage Emeritus
17% of 723 decks
+17% synergy
Termagant Swarm
16% of 906 decks
+16% synergy
Ruby, Daring Tracker
16% of 906 decks
+16% synergy
Birds of Paradise
16% of 906 decks
+16% synergy
Hypersonic Dragon
15% of 723 decks
+15% synergy
Primordial Hydra
15% of 906 decks
+15% synergy
Tyrant Guard
15% of 906 decks
+15% synergy
Hooded Hydra
15% of 906 decks
+15% synergy
Ilysian Caryatid
15% of 906 decks
+15% synergy
Talrand, Sky Summoner
15% of 723 decks
+15% synergy
Hugs, Grisly Guardian
15% of 672 decks
+15% synergy
Melek, Izzet Paragon
15% of 723 decks
+14% synergy
Steelbane Hydra
14% of 906 decks
+14% synergy
Trailtracker Scout
14% of 652 decks
+14% synergy
Niv-Mizzet, the Firemind
14% of 723 decks
+14% synergy
Stormcatch Mentor
14% of 524 decks
+14% synergy
Niv-Mizzet, Parun
14% of 723 decks
+14% synergy
Hungering Hydra
14% of 906 decks
+14% synergy
Radha, Heir to Keld
14% of 906 decks
+14% synergy
Viridian Joiner
14% of 906 decks
+14% synergy
Ochre Jelly
14% of 906 decks
+14% synergy
Fanatic of Rhonas
13% of 724 decks
+13% synergy
Altered Ego
13% of 194 decks
+13% synergy
Nivix Guildmage
13% of 723 decks
+13% synergy
Paradise Druid
13% of 906 decks
+13% synergy
Zoanthrope
12% of 723 decks
+12% synergy
Neverwinter Hydra
12% of 906 decks
+12% synergy
Instants
Comet Storm
24% of 2221 decks
+24% synergy
Beast Within
23% of 906 decks
+23% synergy
Izzet Charm
23% of 723 decks
+23% synergy
Chaos Warp
22% of 2221 decks
+22% synergy
Swords to Plowshares
22% of 289 decks
+22% synergy
Brainstorm
21% of 723 decks
+21% synergy
Negate
20% of 723 decks
+20% synergy
Lightning Bolt
20% of 2221 decks
+20% synergy
Tyvar's Stand
19% of 906 decks
+19% synergy
Path to Exile
19% of 289 decks
+19% synergy
Return of the Wildspeaker
19% of 906 decks
+19% synergy
Rakdos Charm
19% of 368 decks
+19% synergy
Expansion // Explosion
19% of 723 decks
+18% synergy
Abrade
19% of 2221 decks
+18% synergy
Opt
17% of 723 decks
+17% synergy
Electrodominance
17% of 2221 decks
+17% synergy
Klauth's Will
16% of 906 decks
+16% synergy
Thrill of Possibility
16% of 2221 decks
+16% synergy
Frantic Search
16% of 723 decks
+16% synergy
Dark Ritual
16% of 368 decks
+16% synergy
Aetherize
15% of 723 decks
+15% synergy
Counterflux
15% of 723 decks
+15% synergy
Assassin's Trophy
15% of 113 decks
+15% synergy
Pull from Tomorrow
15% of 723 decks
+15% synergy
Growth Spiral
14% of 194 decks
+14% synergy
Mindswipe
14% of 723 decks
+14% synergy
Inspiring Call
14% of 906 decks
+14% synergy
Heroic Intervention
14% of 906 decks
+14% synergy
Village Rites
14% of 368 decks
+14% synergy
Terminate
14% of 368 decks
+14% synergy
Firemind's Foresight
13% of 723 decks
+13% synergy
Repulsive Mutation
13% of 179 decks
+13% synergy
Putrefy
12% of 113 decks
+12% synergy
Lightning Helix
12% of 289 decks
+12% synergy
Rewind
12% of 723 decks
+12% synergy
Blustersquall
11% of 723 decks
+11% synergy
Starstorm
11% of 2221 decks
+11% synergy
Silkguard
11% of 906 decks
+11% synergy
Fall of the Titans
11% of 2221 decks
+11% synergy
Corrupted Conviction
11% of 368 decks
+11% synergy
Volcanic Geyser
11% of 2221 decks
+11% synergy
Blue Sun's Zenith
11% of 723 decks
+11% synergy
Hunter's Insight
11% of 906 decks
+11% synergy
Riveteers Charm
11% of 113 decks
+11% synergy
Bedevil
11% of 368 decks
+11% synergy
Murder
11% of 368 decks
+11% synergy
Chemister's Insight
10% of 723 decks
+10% synergy
Mizzium Skin
10% of 723 decks
+10% synergy
Syncopate
10% of 723 decks
+10% synergy
Commune with Lava
10% of 2221 decks
+10% synergy
Sorceries
Reap the Past
24% of 906 decks
+24% synergy
Harmonize
23% of 906 decks
+23% synergy
Exsanguinate
21% of 368 decks
+21% synergy
Doppelgang
21% of 179 decks
+21% synergy
Read the Bones
21% of 368 decks
+21% synergy
Pest Infestation
21% of 906 decks
+21% synergy
Blasphemous Act
21% of 2221 decks
+20% synergy
Worldsoul's Rage
20% of 814 decks
+20% synergy
Kodama's Reach
20% of 906 decks
+20% synergy
Sign in Blood
19% of 368 decks
+19% synergy
Farseek
19% of 906 decks
+19% synergy
Jaya's Immolating Inferno
19% of 2221 decks
+19% synergy
Wrath of God
19% of 289 decks
+19% synergy
Vandalblast
18% of 2221 decks
+18% synergy
Curse of the Swine
18% of 723 decks
+18% synergy
Feed the Swarm
18% of 368 decks
+18% synergy
Invoke the Firemind
18% of 723 decks
+17% synergy
Finale of Revelation
17% of 723 decks
+17% synergy
Fireball
17% of 2221 decks
+17% synergy
Nature's Lore
17% of 906 decks
+17% synergy
Wildest Dreams
17% of 906 decks
+17% synergy
Crackle with Power
16% of 2221 decks
+16% synergy
Gelatinous Genesis
15% of 906 decks
+15% synergy
Faithless Looting
15% of 2221 decks
+15% synergy
Awaken the Woods
15% of 906 decks
+15% synergy
Hell to Pay
15% of 1873 decks
+15% synergy
Banefire
15% of 2221 decks
+15% synergy
Mizzium Mortars
15% of 2221 decks
+15% synergy
Exponential Growth
14% of 906 decks
+14% synergy
Open the Way
14% of 906 decks
+14% synergy
Savage Twister
14% of 906 decks
+14% synergy
Stump Stomp
14% of 725 decks
+14% synergy
Three Visits
13% of 906 decks
+13% synergy
Shamanic Revelation
13% of 906 decks
+13% synergy
Epic Experiment
13% of 723 decks
+13% synergy
Green Sun's Twilight
12% of 906 decks
+12% synergy
Ponder
12% of 723 decks
+12% synergy
Mana Geyser
12% of 2221 decks
+11% synergy
Hull Breach
11% of 906 decks
+11% synergy
Decimate
11% of 906 decks
+11% synergy
Rishkar's Expertise
11% of 906 decks
+11% synergy
Genesis Wave
11% of 906 decks
+11% synergy
Preordain
10% of 723 decks
+10% synergy
Heaven // Earth
10% of 906 decks
+10% synergy
Ruinous Ultimatum
10% of 69 decks
+10% synergy
Diabolic Tutor
10% of 368 decks
+10% synergy
Night's Whisper
10% of 368 decks
+10% synergy
Devil's Play
10% of 2221 decks
+10% synergy
Dig Up
10% of 113 decks
+10% synergy
Cornered by Black Mages
9% of 64 decks
+9% synergy
Utility Artifacts
Lightning Greaves
18% of 2221 decks
+18% synergy
Lifecrafter's Bestiary
9% of 906 decks
+9% synergy
Fist of Suns
9% of 34 decks
+9% synergy
Ruby Medallion
8% of 2221 decks
+8% synergy
Wayfarer's Bauble
8% of 2221 decks
+8% synergy
Sunforger
8% of 289 decks
+8% synergy
Fractal Harness
7% of 906 decks
+7% synergy
Mindsplice Apparatus
6% of 723 decks
+6% synergy
Thousand-Year Elixir
6% of 2221 decks
+6% synergy
Enchantments
Unbound Flourishing
25% of 906 decks
+25% synergy
Rhythm of the Wild
22% of 906 decks
+22% synergy
Phyrexian Arena
21% of 368 decks
+21% synergy
Fires of Yavimaya
20% of 906 decks
+20% synergy
Temur Ascendancy
17% of 194 decks
+17% synergy
Darksteel Mutation
17% of 289 decks
+17% synergy
Up the Beanstalk
16% of 906 decks
+16% synergy
Thousand-Year Storm
15% of 723 decks
+14% synergy
Leyline of Abundance
13% of 906 decks
+13% synergy
The First Tyrannic War
12% of 194 decks
+12% synergy
Whirlwind of Thought
12% of 68 decks
+12% synergy
Colossal Majesty
12% of 906 decks
+12% synergy
Curiosity
11% of 723 decks
+11% synergy
Bred for the Hunt
10% of 194 decks
+10% synergy
Jeskai Ascendancy
10% of 68 decks
+10% synergy
Impact Tremors
9% of 2221 decks
+9% synergy
Mirari's Wake
9% of 127 decks
+9% synergy
Branching Evolution
9% of 906 decks
+9% synergy
Mana Reflection
9% of 906 decks
+9% synergy
Simic Ascendancy
9% of 194 decks
+9% synergy
Wild Growth
9% of 906 decks
+9% synergy
Warstorm Surge
8% of 2221 decks
+8% synergy
Curse of the Forsaken
8% of 289 decks
+8% synergy
Mystic Barrier
8% of 289 decks
+8% synergy
Sanguine Bond
8% of 368 decks
+8% synergy
Helix Pinnacle
8% of 906 decks
+8% synergy
Elemental Bond
8% of 906 decks
+8% synergy
Invigorating Hot Spring
8% of 906 decks
+8% synergy
Firemind's Research
8% of 723 decks
+8% synergy
Fiery Emancipation
8% of 2221 decks
+7% synergy
Instill Energy
8% of 906 decks
+7% synergy
Dark Tutelage
7% of 368 decks
+7% synergy
Greed
7% of 368 decks
+7% synergy
Mana Bloom
7% of 906 decks
+7% synergy
City on Fire
6% of 2221 decks
+6% synergy
Mayael's Aria
6% of 127 decks
+6% synergy
Fiery Inscription
6% of 2221 decks
+6% synergy
Case of the Ransacked Lab
6% of 654 decks
+6% synergy
Sorcerer Class
6% of 723 decks
+6% synergy
Shark Typhoon
6% of 723 decks
+6% synergy
Goblin Bombardment
6% of 2221 decks
+6% synergy
Havoc Festival
6% of 368 decks
+6% synergy
Exquisite Blood
6% of 368 decks
+6% synergy
The Rollercrusher Ride
6% of 1410 decks
+6% synergy
Propaganda
6% of 723 decks
+6% synergy
Quicksilver Dagger
6% of 723 decks
+6% synergy
Hardened Scales
6% of 906 decks
+6% synergy
Doubling Season
6% of 906 decks
+6% synergy
Assemble the Legion
6% of 289 decks
+5% synergy
Greater Good
6% of 906 decks
+5% synergy
Planeswalkers
Kiora, Behemoth Beckoner
13% of 194 decks
+13% synergy
Tyvar, Jubilant Brawler
9% of 113 decks
+9% synergy
Ral, Storm Conduit
9% of 723 decks
+9% synergy
Narset of the Ancient Way
7% of 68 decks
+7% synergy
Ral Zarek
7% of 723 decks
+7% synergy
Ral, Crackling Wit
6% of 525 decks
+6% synergy
Nicol Bolas, Planeswalker
5% of 55 decks
+5% synergy
Kaito, Dancing Shadow
5% of 55 decks
+5% synergy
Utility Lands
Reliquary Tower
21% of 2221 decks
+21% synergy
Secluded Steppe
20% of 289 decks
+20% synergy
Bojuka Bog
18% of 368 decks
+18% synergy
Drifting Meadow
17% of 289 decks
+17% synergy
Lair of the Hydra
17% of 906 decks
+16% synergy
New Benalia
16% of 289 decks
+16% synergy
Mosswort Bridge
15% of 906 decks
+15% synergy
Temple of the False God
15% of 2221 decks
+15% synergy
Mystic Sanctuary
14% of 723 decks
+14% synergy
Rogue's Passage
14% of 2221 decks
+14% synergy
Forgotten Cave
13% of 2221 decks
+13% synergy
Nivix, Aerie of the Firemind
9% of 723 decks
+9% synergy
Tranquil Thicket
9% of 906 decks
+9% synergy
Lonely Sandbar
8% of 723 decks
+8% synergy
Raging Ravine
8% of 906 decks
+8% synergy
Skarrg, the Rage Pits
7% of 906 decks
+7% synergy
Mistrise Village
7% of 291 decks
+7% synergy
Boseiju, Who Endures
7% of 906 decks
+7% synergy
Sunhome, Fortress of the Legion
7% of 289 decks
+7% synergy
Slayers' Stronghold
7% of 289 decks
+7% synergy
Desolate Lighthouse
7% of 723 decks
+6% synergy
Vault of the Archangel
6% of 69 decks
+6% synergy
Slippery Karst
6% of 906 decks
+6% synergy
Restless Vents
6% of 350 decks
+6% synergy
Smoldering Crater
5% of 2221 decks
+5% synergy
Riptide Laboratory
5% of 723 decks
+5% synergy
Castle Locthwain
5% of 368 decks
+5% synergy
Barren Moor
5% of 368 decks
+5% synergy
Spinerock Knoll
5% of 2221 decks
+5% synergy
Khalni Garden
5% of 906 decks
+5% synergy
Treasure Vault
5% of 2221 decks
+5% synergy
Mana Artifacts
Sol Ring
65% of 2221 decks
+65% synergy
Arcane Signet
48% of 2221 decks
+48% synergy
Izzet Signet
43% of 723 decks
+43% synergy
Rakdos Signet
32% of 368 decks
+32% synergy
Boros Signet
26% of 289 decks
+26% synergy
Talisman of Creativity
21% of 723 decks
+21% synergy
Azorius Signet
21% of 68 decks
+21% synergy
Talisman of Indulgence
17% of 368 decks
+17% synergy
Dimir Signet
16% of 55 decks
+16% synergy
Gruul Signet
16% of 906 decks
+16% synergy
Mind Stone
16% of 2221 decks
+16% synergy
Orzhov Signet
16% of 69 decks
+16% synergy
Commander's Sphere
14% of 2221 decks
+14% synergy
Thought Vessel
13% of 2221 decks
+13% synergy
Talisman of Dominance
13% of 55 decks
+13% synergy
Talisman of Conviction
12% of 289 decks
+12% synergy
Izzet Cluestone
12% of 723 decks
+12% synergy
Izzet Locket
12% of 723 decks
+12% synergy
Timeless Lotus
12% of 34 decks
+12% synergy
Fire Diamond
11% of 2221 decks
+11% synergy
Jeskai Banner
10% of 68 decks
+10% synergy
Talisman of Progress
10% of 68 decks
+10% synergy
Elementalist's Palette
10% of 2221 decks
+10% synergy
Izzet Keyrune
10% of 723 decks
+10% synergy
Fellwar Stone
10% of 2221 decks
+9% synergy
Simic Signet
9% of 194 decks
+9% synergy
Mardu Banner
9% of 69 decks
+9% synergy
Boros Cluestone
9% of 289 decks
+9% synergy
Astral Cornucopia
8% of 2221 decks
+8% synergy
Talisman of Impulse
8% of 906 decks
+8% synergy
Golgari Signet
8% of 113 decks
+8% synergy
Raugrin Crystal
7% of 68 decks
+7% synergy
Sky Diamond
7% of 723 decks
+7% synergy
Charcoal Diamond
7% of 368 decks
+7% synergy
Talisman of Curiosity
7% of 194 decks
+7% synergy
Patriar's Seal
6% of 2221 decks
+6% synergy
Selesnya Signet
6% of 127 decks
+6% synergy
Rakdos Locket
6% of 368 decks
+6% synergy
Rakdos Cluestone
6% of 368 decks
+6% synergy
Boros Keyrune
6% of 289 decks
+5% synergy
Rakdos Keyrune
5% of 368 decks
+5% synergy
Pyromancer's Goggles
5% of 2221 decks
+5% synergy
Midnight Clock
5% of 723 decks
+5% synergy
Lands
Command Tower
56% of 2221 decks
+56% synergy
Jungle Shrine
56% of 127 decks
+56% synergy
Cinder Glade
46% of 906 decks
+46% synergy
Selesnya Sanctuary
46% of 127 decks
+46% synergy
Frontier Bivouac
45% of 194 decks
+45% synergy
Izzet Boilerworks
45% of 723 decks
+45% synergy
Boros Garrison
43% of 289 decks
+42% synergy
Savage Lands
39% of 113 decks
+39% synergy
Selesnya Guildgate
39% of 127 decks
+39% synergy
Smoldering Marsh
36% of 368 decks
+36% synergy
Mystic Monastery
34% of 68 decks
+34% synergy
Nomad Outpost
33% of 69 decks
+33% synergy
Dragonskull Summit
33% of 368 decks
+33% synergy
Boros Guildgate
32% of 289 decks
+32% synergy
Game Trail
31% of 906 decks
+31% synergy
Izzet Guildgate
31% of 723 decks
+31% synergy
Sulfur Falls
31% of 723 decks
+31% synergy
Temple of Epiphany
31% of 723 decks
+31% synergy
Shivan Reef
30% of 723 decks
+30% synergy
Rakdos Carnarium
30% of 368 decks
+30% synergy
Rootbound Crag
29% of 906 decks
+29% synergy
Steam Vents
28% of 723 decks
+28% synergy
Gruul Turf
28% of 906 decks
+28% synergy
Crumbling Necropolis
27% of 55 decks
+27% synergy
Evolving Wilds
27% of 2221 decks
+27% synergy
Swiftwater Cliffs
27% of 723 decks
+27% synergy
Bloodfell Caves
26% of 368 decks
+26% synergy
Ketria Triome
26% of 194 decks
+26% synergy
Temple of Abandon
25% of 906 decks
+25% synergy
Twisted Landscape
25% of 85 decks
+25% synergy
Rockfall Vale
25% of 906 decks
+24% synergy
Clifftop Retreat
24% of 289 decks
+23% synergy
Blood Crypt
23% of 368 decks
+23% synergy
Stomping Ground
23% of 906 decks
+23% synergy
Mossfire Valley
23% of 906 decks
+23% synergy
Temple of Mystery
23% of 194 decks
+23% synergy
Temple of Malice
23% of 368 decks
+23% synergy
Foreboding Ruins
23% of 368 decks
+23% synergy
Frostboil Snarl
22% of 723 decks
+22% synergy
Rakdos Guildgate
22% of 368 decks
+22% synergy
Temple of Triumph
21% of 289 decks
+21% synergy
Bountiful Landscape
21% of 150 decks
+21% synergy
Shadowblood Ridge
21% of 368 decks
+21% synergy
Breeding Pool
21% of 194 decks
+21% synergy
Yavimaya Coast
21% of 194 decks
+21% synergy
Woodland Cemetery
20% of 113 decks
+20% synergy
Godless Shrine
20% of 69 decks
+20% synergy
Hinterland Harbor
20% of 194 decks
+20% synergy
Wind-Scarred Crag
20% of 289 decks
+20% synergy
Stormcarved Coast
20% of 723 decks
+20% synergy