Slagstorm (Card)

Slagstorm
In 10856 decks 0.38% of 2830056 decks
Bennie Smith
Dec 11, 2024
MTG Foundations: Choosing Your Color
Need some help choosing a color for your first Commander deck? Bennie goes over some common color-coded archetypes to get you started.
Cardsphere
Archidekt
Commander Spellbook
Moxfield
Scryfall
MTGStocks
Niv-Mizzet, Visionary
25.79% of 4517 decks 1165 decks
Neheb, the Eternal
25.90% of 3958 decks 1025 decks
Indoraptor, the Perfect Hybrid
13.25% of 6689 decks 886 decks
Solphim, Mayhem Dominus
14.38% of 5488 decks 789 decks
Torbran, Thane of Red Fell
12.35% of 3758 decks 464 decks
Davros, Dalek Creator
7.40% of 4700 decks 348 decks
Auntie Blyte, Bad Influence
17.78% of 1935 decks 344 decks
Firesong and Sunspeaker
6.89% of 3876 decks 267 decks
Obosh, the Preypiercer
15.74% of 1677 decks 264 decks
Ojer Axonil, Deepest Might
1.91% of 10597 decks 202 decks
Judith, Carnage Connoisseur
2.04% of 9368 decks 191 decks
Slicer, Hired Muscle
3.06% of 5886 decks 180 decks
Rakdos, Lord of Riots
1.86% of 8106 decks 151 decks
Storm, Force of Nature
1.39% of 9483 decks 132 decks
Krenko, Mob Boss
0.47% of 27265 decks 128 decks
Syr Carah, the Bold
17.68% of 690 decks 122 decks
Niv-Mizzet, Parun
0.77% of 15668 decks 120 decks
Rem Karolus, Stalwart Slayer
15.52% of 683 decks 106 decks
Florian, Voldaren Scion
8.98% of 1103 decks 99 decks
Norin the Wary
1.96% of 4543 decks 89 decks
New Cards
Call the Spirit Dragons
25% of 16 decks +13% synergy
Armament Dragon
17% of 18 decks +16% synergy
Sonic Shrieker
13% of 52 decks +12% synergy
Bone-Cairn Butcher
13% of 54 decks +6% synergy
Jeskai Shrinekeeper
12% of 64 decks +11% synergy
High Synergy Cards
Boltwave
47% of 6364 decks +45% synergy
Maestros Charm
47% of 691 decks +45% synergy
Flame Rift
44% of 10856 decks +43% synergy
Cult of Skaro
43% of 653 decks +42% synergy
Atarka's Command
41% of 1901 decks +40% synergy
Lightning Bolt
50% of 10856 decks +40% synergy
Fiery Confluence
40% of 10856 decks +38% synergy
Guttersnipe
44% of 10856 decks +37% synergy
Zhur-Taa Druid
36% of 1901 decks +34% synergy
Sygg, River Cutthroat
35% of 691 decks +34% synergy
Top Cards
Blasphemous Act
50% of 10856 decks +17% synergy
Cultivate
49% of 1901 decks +4% synergy
Counterspell
46% of 3034 decks +4% synergy
Ignoble Hierarch
46% of 1036 decks +21% synergy
Farseek
43% of 1901 decks +9% synergy
Rakdos Charm
43% of 3151 decks +28% synergy
Boros Charm
43% of 1090 decks +18% synergy
Rampant Growth
42% of 1901 decks +7% synergy
Chaos Warp
41% of 10856 decks +9% synergy
Swiftfoot Boots
38% of 10856 decks +10% synergy
Game Changers
Jeska's Will
27% of 10856 decks +10% synergy
Smothering Tithe
17% of 1090 decks -6% synergy
Deflecting Swat
15% of 10856 decks -2% synergy
Fierce Guardianship
14% of 3034 decks -4% synergy
Mystical Tutor
12% of 3034 decks -2% synergy
Gamble
12% of 10856 decks +3% synergy
Ancient Tomb
7% of 10856 decks -3% synergy
Force of Will
6% of 3034 decks -5% synergy
Underworld Breach
6% of 10856 decks -0% synergy
Orcish Bowmasters
6% of 3090 decks -4% synergy
Creatures
Ripjaw Raptor
35% of 1901 decks +34% synergy
Goblin Anarchomancer
35% of 1901 decks +22% synergy
Goblin Electromancer
34% of 3034 decks +25% synergy
Ranging Raptors
33% of 1901 decks +31% synergy
Niv-Mizzet, Parun
33% of 3034 decks +25% synergy
Stormcatch Mentor
32% of 2617 decks +26% synergy
Archmage of Runes
31% of 2488 decks +28% synergy
Firebrand Archer
29% of 10856 decks +26% synergy
Thermo-Alchemist
28% of 10856 decks +25% synergy
Heartless Hidetsugu
26% of 10856 decks +24% synergy
Klothys, God of Destiny
26% of 1901 decks +24% synergy
Torbran, Thane of Red Fell
25% of 10856 decks +22% synergy
Radiant Scrollwielder
25% of 1090 decks +25% synergy
Heartflame Duelist
25% of 994 decks +24% synergy
The Valeyard
25% of 674 decks +24% synergy
Niv-Mizzet, the Firemind
24% of 3034 decks +21% synergy
Kessig Flamebreather
23% of 10856 decks +20% synergy
Coruscation Mage
23% of 7345 decks +20% synergy
Laboratory Maniac
22% of 3034 decks +18% synergy
Solphim, Mayhem Dominus
22% of 10856 decks +18% synergy
Brash Taunter
22% of 10856 decks +18% synergy
Plague Spitter
22% of 3151 decks +21% synergy
Birds of Paradise
20% of 1901 decks -7% synergy
Creeping Bloodsucker
20% of 3151 decks +17% synergy
Archmage Emeritus
20% of 3034 decks +12% synergy
Tectonic Giant
20% of 10856 decks +18% synergy
Storm-Kiln Artist
19% of 10856 decks +11% synergy
Electrostatic Field
19% of 10856 decks +16% synergy
Boros Reckoner
18% of 1090 decks +17% synergy
Chandra's Incinerator
18% of 10856 decks +16% synergy
Missy
18% of 674 decks +17% synergy
Gisela, Blade of Goldnight
18% of 1090 decks +11% synergy
Firespitter Whelp
17% of 6384 decks +16% synergy
The Cyber-Controller
17% of 653 decks +16% synergy
Neheb, the Eternal
17% of 10856 decks +15% synergy
Twinflame Tyrant
17% of 6423 decks +13% synergy
Weeping Angel
17% of 668 decks +16% synergy
Mocking Sprite
17% of 2968 decks +15% synergy
Ramos, Dragon Engine
16% of 74 decks +9% synergy
Rem Karolus, Stalwart Slayer
16% of 1090 decks +15% synergy
Xenagos, God of Revels
15% of 1901 decks +9% synergy
Llanowar Elves
15% of 1901 decks -6% synergy
Loyal Subordinate
15% of 3151 decks +14% synergy
Polyraptor
15% of 1901 decks +13% synergy
Solemn Simulacrum
14% of 10856 decks +1% synergy
Balefire Liege
14% of 1090 decks +13% synergy
Razorkin Needlehead
14% of 6919 decks +10% synergy
Ashad, the Lone Cyberman
14% of 653 decks +13% synergy
Kaervek the Merciless
13% of 3151 decks +11% synergy
Sakura-Tribe Elder
13% of 1901 decks -5% synergy
Instants
An Offer You Can't Refuse
38% of 3034 decks +16% synergy
Negate
35% of 3034 decks +13% synergy
Abrade
34% of 10856 decks +23% synergy
Swords to Plowshares
33% of 1090 decks -29% synergy
Lightning Helix
33% of 1090 decks +31% synergy
Brainstorm
33% of 3034 decks +13% synergy
Thrill of Possibility
30% of 10856 decks +20% synergy
Beast Within
30% of 1901 decks -7% synergy
Price of Progress
30% of 10856 decks +28% synergy
Assassin's Trophy
29% of 1036 decks -2% synergy
Path to Exile
28% of 1090 decks -19% synergy
Revitalizing Repast
28% of 819 decks +19% synergy
Opt
28% of 3034 decks +18% synergy
Return of the Wildspeaker
26% of 1901 decks +14% synergy
Heroic Intervention
25% of 1901 decks -4% synergy
Frantic Search
25% of 3034 decks +12% synergy
Seething Song
24% of 10856 decks +18% synergy
Arcane Denial
24% of 3034 decks +4% synergy
Deflecting Palm
23% of 1090 decks +18% synergy
Dark Ritual
23% of 3151 decks +0% synergy
Refute
23% of 2487 decks +20% synergy
Volcanic Fallout
22% of 10856 decks +22% synergy
Terminate
22% of 3151 decks +2% synergy
Growth Spiral
21% of 437 decks -1% synergy
Tamiyo's Safekeeping
21% of 1901 decks +14% synergy
Tail Swipe
20% of 1901 decks +19% synergy
Prismari Command
18% of 3034 decks +13% synergy
Ionize
18% of 3034 decks +17% synergy
Aetherize
18% of 3034 decks +12% synergy
Cyclonic Rift
17% of 3034 decks -9% synergy
Izzet Charm
17% of 3034 decks +11% synergy
Tyvar's Stand
17% of 1901 decks +12% synergy
Delayed Blast Fireball
17% of 10856 decks +14% synergy
Bedevil
16% of 3151 decks +3% synergy
Shock
15% of 10856 decks +14% synergy
Decisive Denial
15% of 437 decks +13% synergy
Comet Storm
15% of 10856 decks +13% synergy
Pongify
15% of 3034 decks +4% synergy
Quandrix Command
14% of 437 decks +13% synergy
Generous Gift
14% of 1090 decks -11% synergy
Big Score
14% of 10856 decks +5% synergy
Prizefight
14% of 1901 decks +12% synergy
Reverberate
14% of 10856 decks +11% synergy
Mortify
14% of 184 decks +2% synergy
Think Twice
13% of 3034 decks +12% synergy
Inscription of Abundance
13% of 1901 decks +11% synergy
Untimely Malfunction
13% of 6874 decks +6% synergy
Snap
13% of 3034 decks +6% synergy
Risk Factor
13% of 10856 decks +12% synergy
Unlicensed Disintegration
13% of 3151 decks +12% synergy
Sorceries
Nature's Lore
34% of 1901 decks +3% synergy
Kodama's Reach
32% of 1901 decks +1% synergy
Faithless Looting
31% of 10856 decks +15% synergy
Mana Geyser
28% of 10856 decks +21% synergy
Earthquake
26% of 10856 decks +24% synergy
Bushwhack
25% of 1901 decks +23% synergy
Vandalblast
25% of 10856 decks +10% synergy
Grab the Prize
25% of 6863 decks +22% synergy
Deafening Clarion
25% of 1090 decks +24% synergy
Ponder
24% of 3034 decks +12% synergy
Acidic Soil
24% of 10856 decks +23% synergy
Feed the Swarm
23% of 3151 decks +5% synergy
Three Visits
22% of 1901 decks -2% synergy
Rishkar's Expertise
21% of 1901 decks +11% synergy
Preordain
20% of 3034 decks +10% synergy
Rip Apart
20% of 1090 decks +16% synergy
Sign in Blood
19% of 3151 decks +9% synergy
Great Intelligence's Plan
19% of 653 decks +18% synergy
End the Festivities
18% of 10856 decks +16% synergy
Chandra's Ignition
18% of 10856 decks +13% synergy
Tectonic Hazard
17% of 9322 decks +16% synergy
Rolling Earthquake
16% of 10856 decks +16% synergy
Read the Bones
16% of 3151 decks +8% synergy
Jaya's Immolating Inferno
16% of 10856 decks +14% synergy
Night's Whisper
15% of 3151 decks +6% synergy
Grapeshot
15% of 10856 decks +11% synergy
Chain Reaction
14% of 10856 decks +10% synergy
Savage Stomp
14% of 1901 decks +13% synergy
Light Up the Stage
13% of 10856 decks +11% synergy
Ruinous Ultimatum
13% of 184 decks -5% synergy
Wheel of Misfortune
13% of 10856 decks +9% synergy
Sizzle
13% of 10856 decks +13% synergy
Bridgeworks Battle
13% of 1535 decks +9% synergy
Exsanguinate
12% of 3151 decks +6% synergy
Supreme Verdict
12% of 213 decks -1% synergy
Crackle with Power
12% of 10856 decks +10% synergy
Windfall
12% of 3034 decks -1% synergy
Browbeat
11% of 10856 decks +11% synergy
Expressive Iteration
11% of 3034 decks +5% synergy
Exterminate!
11% of 3015 decks +11% synergy
Prisoner's Dilemma
11% of 8677 decks +10% synergy
Anger of the Gods
11% of 10856 decks +10% synergy
Syphon Soul
11% of 3151 decks +10% synergy
Primal Might
11% of 1901 decks +10% synergy
Demonic Tutor
10% of 3151 decks -11% synergy
Harmonize
10% of 1901 decks +2% synergy
Thrilling Discovery
10% of 1090 decks +8% synergy
Past in Flames
9% of 10856 decks +7% synergy
Mizzix's Mastery
9% of 10856 decks +6% synergy
Toxic Deluge
9% of 3151 decks -9% synergy
Utility Artifacts
Mind Stone
30% of 10856 decks +14% synergy
Ruby Medallion
29% of 10856 decks +27% synergy
Lightning Greaves
28% of 10856 decks +3% synergy
Sunforger
18% of 1090 decks +14% synergy
Commander's Sphere
18% of 10856 decks +3% synergy
Wayfarer's Bauble
16% of 10856 decks +7% synergy
Basilisk Collar
10% of 10856 decks +6% synergy
Mithril Coat
9% of 10492 decks +5% synergy
The Skullspore Nexus
8% of 1828 decks +5% synergy
Glittering Stockpile
8% of 10856 decks +6% synergy
Endless Atlas
7% of 10856 decks +6% synergy
Cryptolith Fragment
7% of 10856 decks +6% synergy
The Great Henge
7% of 1901 decks -3% synergy
Fiendlash
6% of 10856 decks +5% synergy
Boros Locket
6% of 1090 decks +5% synergy
Power Fist
6% of 1649 decks +4% synergy
Darksteel Plate
6% of 10856 decks +4% synergy
Ankh of Mishra
5% of 10856 decks +5% synergy
Enchantments
Rhythm of the Wild
31% of 1901 decks +8% synergy
Thousand-Year Storm
26% of 3034 decks +22% synergy
Pestilence
25% of 3151 decks +24% synergy
Garruk's Uprising
25% of 1901 decks +8% synergy
Fiery Inscription
24% of 10512 decks +21% synergy
Descent into Avernus
24% of 10856 decks +20% synergy
Phyrexian Arena
23% of 3151 decks +7% synergy
Sulfuric Vortex
21% of 10856 decks +20% synergy
Fiery Emancipation
21% of 10856 decks +17% synergy
Whirlwind of Thought
20% of 213 decks +10% synergy
Pyrohemia
19% of 10856 decks +17% synergy
Propaganda
17% of 3034 decks +5% synergy
Rite of Passage
17% of 1901 decks +16% synergy
Curiosity
17% of 3034 decks +13% synergy
Dictate of the Twin Gods
15% of 10856 decks +14% synergy
Rhystic Study
15% of 3034 decks -11% synergy
Manabarbs
15% of 10856 decks +13% synergy
Mark of Asylum
14% of 1090 decks +14% synergy
Roiling Vortex
14% of 10856 decks +12% synergy
City on Fire
13% of 10856 decks +9% synergy
Repercussion
12% of 10856 decks +11% synergy
Light of Sanction
12% of 1090 decks +12% synergy
Theater of Horrors
11% of 3151 decks +9% synergy
Rite of the Dragoncaller
11% of 6364 decks +9% synergy
Wild Growth
11% of 1901 decks +0% synergy
Underworld Dreams
11% of 3151 decks +8% synergy
Court of Ambition
11% of 3151 decks +9% synergy
Snake Umbra
11% of 1901 decks +8% synergy
Mechanized Warfare
11% of 10856 decks +10% synergy
All-Out Assault
11% of 57 decks +4% synergy
Ghostly Prison
10% of 1090 decks -1% synergy
Omniscience
10% of 3034 decks +7% synergy
Wound Reflection
10% of 3151 decks +8% synergy
Blood Moon
10% of 10856 decks +7% synergy
Jeskai Ascendancy
10% of 213 decks +4% synergy
Annie Joins Up
10% of 184 decks -3% synergy
Spellshock
10% of 10856 decks +9% synergy
Blink
10% of 657 decks +9% synergy
Mystic Remora
9% of 3034 decks -8% synergy
Painful Quandary
9% of 3151 decks +7% synergy
Impact Tremors
9% of 10856 decks -1% synergy
Furnace of Rath
9% of 10856 decks +8% synergy
Branching Evolution
9% of 1901 decks +3% synergy
Land Tax
9% of 1090 decks +2% synergy
Genesis of the Daleks
9% of 2904 decks +8% synergy
Utopia Sprawl
9% of 1901 decks +1% synergy
Leyline of the Guildpact
9% of 70 decks -7% synergy
Leyline of Mutation
8% of 59 decks +3% synergy
Virtue of Courage
8% of 9926 decks +7% synergy
Unnatural Growth
8% of 1901 decks +3% synergy
Planeswalkers
Chandra, Torch of Defiance
18% of 10856 decks +15% synergy
Domri, Anarch of Bolas
15% of 1901 decks +12% synergy
Jace, Wielder of Mysteries
13% of 3034 decks +9% synergy
Ral, Crackling Wit
13% of 2617 decks +9% synergy
Tezzeret, Master of the Bridge
11% of 691 decks +9% synergy
The Wanderer
9% of 1090 decks +8% synergy
Koth, Fire of Resistance
8% of 10856 decks +7% synergy
Narset of the Ancient Way
7% of 213 decks +4% synergy
Ral, Storm Conduit
7% of 3034 decks +3% synergy
Chandra, Hope's Beacon
5% of 10856 decks +4% synergy
Utility Lands
Bojuka Bog
23% of 3151 decks -7% synergy
Kessig Wolf Run
22% of 1901 decks +6% synergy
Reliquary Tower
20% of 10856 decks -10% synergy
Creeping Tar Pit
19% of 691 decks +16% synergy
Rogue's Passage
17% of 10856 decks -3% synergy
Mystic Sanctuary
14% of 3034 decks +2% synergy
Spinerock Knoll
13% of 10856 decks +9% synergy
Shivan Gorge
13% of 10856 decks +11% synergy
Valakut, the Molten Pinnacle
12% of 10856 decks +10% synergy
War Room
12% of 10856 decks +6% synergy
Forgotten Cave
11% of 10856 decks +7% synergy
Temple of the False God
10% of 10856 decks +0% synergy
Boseiju, Who Endures
10% of 1901 decks -9% synergy
Mosswort Bridge
9% of 1901 decks -1% synergy
Otawara, Soaring City
9% of 3034 decks -8% synergy
Arena of Glory
7% of 7687 decks +1% synergy
Needle Spires
7% of 1090 decks +5% synergy
Nykthos, Shrine to Nyx
7% of 10856 decks +1% synergy
Leechridden Swamp
6% of 3151 decks +5% synergy
Mistrise Village
6% of 664 decks +0% synergy
Restless Ridgeline
6% of 1820 decks +4% synergy
Vault of the Archangel
6% of 184 decks -6% synergy
Ramunap Ruins
6% of 10856 decks +5% synergy
Secluded Steppe
5% of 1090 decks +2% synergy
Restless Bivouac
5% of 998 decks +3% synergy
Command Beacon
5% of 10856 decks +0% synergy
Mana Artifacts
Sol Ring
84% of 10856 decks -0% synergy
Arcane Signet
71% of 10856 decks -1% synergy
Talisman of Dominance
48% of 691 decks +16% synergy
Izzet Signet
47% of 3034 decks +19% synergy
Talisman of Creativity
42% of 3034 decks +13% synergy
Boros Signet
39% of 1090 decks +16% synergy
Rakdos Signet
38% of 3151 decks +9% synergy
Talisman of Indulgence
33% of 3151 decks +6% synergy
Talisman of Conviction
32% of 1090 decks +8% synergy
Dimir Signet
29% of 691 decks +1% synergy
Fellwar Stone
23% of 10856 decks +2% synergy
Orzhov Signet
19% of 184 decks -8% synergy
Fire Diamond
19% of 10856 decks +14% synergy
Azorius Signet
18% of 213 decks -7% synergy
Thought Vessel
17% of 10856 decks +0% synergy
Pyromancer's Goggles
16% of 10856 decks +15% synergy
Gruul Signet
16% of 1901 decks +5% synergy
Talisman of Impulse
16% of 1901 decks +6% synergy
Talisman of Progress
16% of 213 decks -8% synergy
Relic of Sauron
15% of 686 decks +6% synergy
Talisman of Resilience
14% of 1036 decks +2% synergy
Golgari Signet
11% of 1036 decks -1% synergy
Simic Signet
11% of 437 decks -3% synergy
Talisman of Hierarchy
10% of 184 decks -16% synergy
Marble Diamond
9% of 1090 decks +5% synergy
Talisman of Curiosity
8% of 437 decks -5% synergy
Midnight Clock
8% of 3034 decks +3% synergy
Selesnya Signet
8% of 227 decks -0% synergy
Sky Diamond
8% of 3034 decks +3% synergy
Cursed Mirror
7% of 10856 decks +2% synergy
Charcoal Diamond
7% of 3151 decks +2% synergy
Everflowing Chalice
7% of 10856 decks +2% synergy
Herd Heirloom
6% of 340 decks +4% synergy
Liquimetal Torque
6% of 10856 decks +3% synergy
Gilded Lotus
5% of 10856 decks +2% synergy
Thran Dynamo
5% of 10856 decks +1% synergy
Talisman of Unity
5% of 227 decks -2% synergy
Worn Powerstone
5% of 10856 decks +2% synergy
Lands
Crumbling Necropolis
56% of 691 decks +25% synergy
Command Tower
51% of 10856 decks -24% synergy
Smoldering Marsh
49% of 3151 decks +16% synergy
Sulfur Falls
48% of 3034 decks +15% synergy
Dragonskull Summit
45% of 3151 decks +13% synergy
Cinder Glade
44% of 1901 decks +5% synergy
Ziatora's Proving Ground
43% of 1036 decks +13% synergy
Savage Lands
43% of 1036 decks +19% synergy
Drowned Catacomb
42% of 691 decks +15% synergy
Shivan Reef
41% of 3034 decks +13% synergy
Sunken Hollow
40% of 691 decks +5% synergy
Shipwreck Marsh
39% of 691 decks +20% synergy
Temple of Epiphany
38% of 3034 decks +20% synergy
Clifftop Retreat
38% of 1090 decks +8% synergy
Mystic Monastery
38% of 213 decks +11% synergy
Temple of Triumph
38% of 1090 decks +20% synergy
Frostboil Snarl
37% of 3034 decks +22% synergy
Overgrown Tomb
34% of 1036 decks -7% synergy
Jungle Shrine
34% of 227 decks +2% synergy
Rootbound Crag
34% of 1901 decks +9% synergy
Stormcarved Coast
32% of 3034 decks +14% synergy
Xander's Lounge
32% of 691 decks +7% synergy
Stomping Ground
32% of 1901 decks -9% synergy
Wind-Scarred Crag
31% of 1090 decks +24% synergy
Foreboding Ruins
31% of 3151 decks +15% synergy
Nomad Outpost
30% of 184 decks +2% synergy
Blood Crypt
30% of 3151 decks -8% synergy
Boros Garrison
30% of 1090 decks +15% synergy
Steam Vents
30% of 3034 decks -9% synergy
Battlefield Forge
30% of 1090 decks +3% synergy
Swiftwater Cliffs
29% of 3034 decks +23% synergy
Frontier Bivouac
29% of 437 decks +1% synergy
Woodland Cemetery
28% of 1036 decks -1% synergy
Rockfall Vale
28% of 1901 decks +6% synergy
Izzet Boilerworks
27% of 3034 decks +11% synergy
Watery Grave
27% of 691 decks -13% synergy
Undergrowth Stadium
27% of 1036 decks +1% synergy
Prairie Stream
27% of 213 decks -7% synergy
Temple of Malice
27% of 3151 decks +12% synergy
Temple of Deceit
26% of 691 decks +10% synergy
Cascade Bluffs
26% of 3034 decks +14% synergy
Training Center
26% of 3034 decks -0% synergy
Furycalm Snarl
25% of 1090 decks +12% synergy
Hinterland Harbor
25% of 437 decks -4% synergy
Choked Estuary
25% of 691 decks +9% synergy
Luxury Suite
25% of 3151 decks -1% synergy
Haunted Ridge
25% of 3151 decks +9% synergy
Sacred Foundry
25% of 1090 decks -11% synergy
Spire Garden
24% of 1901 decks -0% synergy
Yavimaya Coast
24% of 437 decks -4% synergy