Universal Solvent (Card)

Universal Solvent
In 2216 decks 0% of 5615073 decks
Lenny Wooley
Jul 29, 2021
Power Sink - Urza's Gumball Machine
Lenny introduces a new series! Time to turn overpowered legends into hilariously fun commanders instead!
Cardsphere
Archidekt
Commander Spellbook
Moxfield
Scryfall
MTGStocks
Meria, Scholar of Antiquity
3.17% of 3560 decks 113 decks
Syr Ginger, the Meal Ender
3.53% of 2293 decks 81 decks
Traxos, Scourge of Kroog
3.94% of 1829 decks 72 decks
Jhoira, Weatherlight Captain
1.16% of 6047 decks 70 decks
Urza, Lord High Artificer
0.50% of 14013 decks 70 decks
Karn, Legacy Reforged
1.21% of 4884 decks 59 decks
Kozilek, the Great Distortion
0.83% of 5808 decks 48 decks
Liberator, Urza's Battlethopter
1.33% of 2782 decks 37 decks
Emry, Lurker of the Loch
0.80% of 4600 decks 37 decks
Graaz, Unstoppable Juggernaut
1.05% of 3252 decks 34 decks
Dynaheir, Invoker Adept
2.48% of 1371 decks 34 decks
Alela, Artful Provocateur
0.22% of 12887 decks 28 decks
Urza, Powerstone Prodigy
4.63% of 561 decks 26 decks
Yedora, Grave Gardener
0.87% of 2983 decks 26 decks
Zhulodok, Void Gorger
0.13% of 18099 decks 24 decks
Ashnod the Uncaring
0.93% of 2464 decks 23 decks
Sai, Master Thopterist
1.01% of 2087 decks 21 decks
Glissa, the Traitor
0.71% of 2528 decks 18 decks
New Cards
Wastewood Verge
6% of 31 decks +1% synergy
Within Range
6% of 16 decks +5% synergy
Loot, the Pathfinder
6% of 16 decks +5% synergy
Haunted Hellride
6% of 36 decks +5% synergy
Grim Bauble
5% of 105 decks +5% synergy
High Synergy Cards
Foundry Inspector
35% of 2216 decks +31% synergy
Etherium Sculptor
30% of 878 decks +25% synergy
Meteor Golem
27% of 2216 decks +25% synergy
Unstable Obelisk
24% of 2216 decks +24% synergy
Mind Stone
39% of 2216 decks +22% synergy
Aether Spellbomb
22% of 878 decks +21% synergy
Darksteel Citadel
24% of 2216 decks +20% synergy
Buried Ruin
25% of 2216 decks +20% synergy
Goblin Firebomb
19% of 2216 decks +19% synergy
Enthusiastic Mechanaut
23% of 352 decks +19% synergy
Top Cards
Swiftfoot Boots
27% of 2216 decks -0% synergy
Wayfarer's Bauble
25% of 2216 decks +16% synergy
Counterspell
23% of 878 decks -19% synergy
Solemn Simulacrum
23% of 2216 decks +10% synergy
Negate
22% of 878 decks -1% synergy
Burnished Hart
21% of 2216 decks +17% synergy
Hedron Archive
20% of 2216 decks +17% synergy
Chaos Warp
20% of 836 decks -12% synergy
Dispeller's Capsule
19% of 477 decks +19% synergy
Murder
19% of 606 decks +16% synergy
Game Changers
Cyclonic Rift
7% of 878 decks -20% synergy
Bolas's Citadel
6% of 606 decks -3% synergy
Urza, Lord High Artificer
6% of 878 decks +2% synergy
Jeska's Will
6% of 836 decks -11% synergy
Rhystic Study
5% of 878 decks -21% synergy
Creatures
Reckless Fireweaver
19% of 836 decks +15% synergy
Sai, Master Thopterist
19% of 878 decks +15% synergy
Emry, Lurker of the Loch
18% of 878 decks +14% synergy
Jhoira's Familiar
18% of 2216 decks +16% synergy
Shimmer Myr
17% of 2216 decks +16% synergy
Scrap Trawler
17% of 2216 decks +15% synergy
Ornithopter
17% of 2216 decks +15% synergy
Haywire Mite
16% of 543 decks +13% synergy
Myr Retriever
16% of 2216 decks +14% synergy
Herald of Kozilek
15% of 352 decks +14% synergy
Palladium Myr
14% of 2216 decks +12% synergy
Workshop Assistant
13% of 2216 decks +13% synergy
Silver Myr
13% of 878 decks +11% synergy
Metalwork Colossus
13% of 2216 decks +12% synergy
Llanowar Elves
13% of 543 decks -8% synergy
Riddlesmith
13% of 878 decks +12% synergy
Ingenious Artillerist
12% of 836 decks +10% synergy
Iron Myr
12% of 836 decks +9% synergy
Jan Jansen, Chaos Crafter
12% of 92 decks +9% synergy
Steel Hellkite
12% of 2216 decks +10% synergy
Sarinth Steelseeker
11% of 543 decks +10% synergy
Elvish Mystic
11% of 543 decks -6% synergy
Korlessa, Scale Singer
11% of 179 decks +9% synergy
Ornithopter of Paradise
11% of 2216 decks +7% synergy
Thought Monitor
11% of 878 decks +8% synergy
Sharuum the Hegemon
11% of 122 decks +9% synergy
Trinket Mage
10% of 878 decks +8% synergy
Padeem, Consul of Innovation
10% of 878 decks +7% synergy
Mishra, Eminent One
10% of 107 decks +10% synergy
Jhoira, Weatherlight Captain
10% of 352 decks +4% synergy
Pilgrim's Eye
10% of 2216 decks +10% synergy
Steel Overseer
10% of 2216 decks +8% synergy
Myr Battlesphere
10% of 2216 decks +8% synergy
Artificer's Assistant
9% of 878 decks +9% synergy
Baleful Strix
9% of 249 decks -4% synergy
Fyndhorn Elves
9% of 543 decks -3% synergy
The Reality Chip
9% of 878 decks +5% synergy
Noxious Gearhulk
9% of 606 decks +6% synergy
Gold Myr
9% of 477 decks +6% synergy
Whirler Rogue
9% of 878 decks +7% synergy
Thrakkus the Butcher
8% of 248 decks +5% synergy
Urza, Prince of Kroog
8% of 262 decks +6% synergy
Forensic Gadgeteer
8% of 562 decks +6% synergy
Ethersworn Adjudicator
8% of 122 decks +6% synergy
Hedron Crawler
8% of 2216 decks +8% synergy
Reclamation Sage
8% of 543 decks -2% synergy
Kutzil, Malamet Exemplar
8% of 89 decks -7% synergy
Plargg, Dean of Chaos
8% of 217 decks +7% synergy
Zirda, the Dawnwaker
8% of 217 decks +5% synergy
Minthara, Merciless Soul
8% of 205 decks +6% synergy
Instants
Abrade
16% of 836 decks +4% synergy
Swords to Plowshares
15% of 477 decks -47% synergy
Beast Within
15% of 543 decks -22% synergy
Lightning Bolt
14% of 836 decks +3% synergy
Scour from Existence
13% of 2216 decks +13% synergy
Terminate
13% of 208 decks -7% synergy
Broken Wings
12% of 543 decks +12% synergy
Thrill of Possibility
12% of 836 decks +2% synergy
Deadly Dispute
11% of 606 decks +0% synergy
Bedevil
11% of 208 decks -3% synergy
Path to Exile
10% of 477 decks -36% synergy
Return to Nature
10% of 543 decks +4% synergy
Thirst for Knowledge
10% of 878 decks +8% synergy
Dark Ritual
10% of 606 decks -13% synergy
Go for the Throat
9% of 606 decks +2% synergy
Dramatic Reversal
9% of 878 decks +4% synergy
Your Temple Is Under Attack
9% of 477 decks +7% synergy
Village Rites
9% of 606 decks -1% synergy
Paradoxical Outcome
9% of 878 decks +8% synergy
Warping Wail
8% of 2216 decks +8% synergy
Run Away Together
8% of 878 decks +7% synergy
Disenchant
8% of 477 decks +5% synergy
Brainstorm
8% of 878 decks -12% synergy
Whir of Invention
8% of 878 decks +5% synergy
Bladebrand
8% of 606 decks +8% synergy
Naturalize
8% of 543 decks +6% synergy
Putrefy
8% of 159 decks -8% synergy
Reality Shift
7% of 878 decks -1% synergy
Mortify
7% of 205 decks -4% synergy
Growth Spiral
7% of 179 decks -15% synergy
Tragic Slip
7% of 606 decks +4% synergy
Band Together
7% of 543 decks +7% synergy
Titan's Presence
7% of 2216 decks +7% synergy
Guiding Bolt
7% of 477 decks +7% synergy
Boros Charm
7% of 217 decks -18% synergy
Supernatural Stamina
7% of 606 decks +5% synergy
Stoic Rebuttal
7% of 878 decks +6% synergy
Inspired Charge
7% of 477 decks +7% synergy
Generous Gift
7% of 477 decks -18% synergy
Snakeskin Veil
7% of 543 decks +2% synergy
Disruption Protocol
7% of 878 decks +6% synergy
Resculpt
7% of 878 decks +2% synergy
Defile
7% of 606 decks +3% synergy
Frantic Search
6% of 878 decks -6% synergy
Null Elemental Blast
6% of 1178 decks +5% synergy
Unexpected Windfall
6% of 836 decks -0% synergy
Big Score
6% of 836 decks -3% synergy
Rakdos Charm
6% of 208 decks -8% synergy
Demand Answers
6% of 592 decks +1% synergy
Heroic Intervention
6% of 543 decks -24% synergy
Sorceries
Feed the Swarm
17% of 606 decks -0% synergy
Blasphemous Act
16% of 836 decks -17% synergy
Cultivate
15% of 543 decks -30% synergy
Rampant Growth
14% of 543 decks -20% synergy
All Is Dust
12% of 2216 decks +10% synergy
Faithless Looting
11% of 836 decks -5% synergy
Spark Harvest
10% of 606 decks +10% synergy
Thoughtcast
10% of 878 decks +7% synergy
Nature's Lore
10% of 543 decks -22% synergy
Introduction to Annihilation
10% of 2216 decks +9% synergy
Kodama's Reach
9% of 543 decks -21% synergy
Fabricate
9% of 878 decks +3% synergy
Wake the Past
9% of 217 decks +6% synergy
Tormenting Voice
9% of 836 decks +6% synergy
Sign in Blood
8% of 606 decks -1% synergy
Vandalblast
8% of 836 decks -8% synergy
Austere Command
8% of 477 decks -5% synergy
Read the Bones
8% of 606 decks +0% synergy
Diabolic Tutor
7% of 606 decks +1% synergy
Fireball
7% of 836 decks +6% synergy
Fade into Antiquity
7% of 543 decks +7% synergy
Decimate
7% of 248 decks -1% synergy
Chain Reaction
7% of 836 decks +2% synergy
Preordain
6% of 878 decks -4% synergy
Strategic Planning
6% of 878 decks +6% synergy
Harmonize
6% of 543 decks -3% synergy
You Meet in a Tavern
6% of 543 decks +6% synergy
Explore
6% of 543 decks -4% synergy
Farseek
6% of 543 decks -29% synergy
Cathartic Reunion
6% of 836 decks +2% synergy
Victimize
6% of 606 decks -6% synergy
Rise and Shine
6% of 878 decks +4% synergy
Time Wipe
5% of 262 decks -1% synergy
Bone Splinters
5% of 606 decks +5% synergy
Slaughter the Strong
5% of 477 decks +4% synergy
Ponder
5% of 878 decks -7% synergy
Myrkul's Edict
5% of 606 decks +5% synergy
Duress
5% of 606 decks +4% synergy
Reckless Handling
5% of 803 decks +3% synergy
Rip Apart
5% of 217 decks +2% synergy
Utility Artifacts
Commander's Sphere
19% of 2216 decks +5% synergy
Mystic Forge
19% of 2216 decks +16% synergy
Lightning Greaves
15% of 2216 decks -10% synergy
Manifold Key
15% of 2216 decks +14% synergy
Pyrite Spellbomb
15% of 836 decks +14% synergy
Ichor Wellspring
14% of 2216 decks +12% synergy
Oni-Cult Anvil
13% of 208 decks +12% synergy
Soul-Guide Lantern
13% of 2216 decks +12% synergy
Dreamstone Hedron
13% of 2216 decks +12% synergy
Mishra's Bauble
13% of 2216 decks +12% synergy
Tormod's Crypt
13% of 2216 decks +12% synergy
Executioner's Capsule
13% of 606 decks +12% synergy
Door to Nothingness
12% of 40 decks +9% synergy
Expedition Map
12% of 2216 decks +9% synergy
Thopter Foundry
12% of 122 decks +10% synergy
Unwinding Clock
12% of 2216 decks +10% synergy
Forsaken Monument
12% of 2216 decks +10% synergy
Trading Post
11% of 2216 decks +10% synergy
Sculpting Steel
11% of 2216 decks +9% synergy
Nevinyrral's Disk
11% of 2216 decks +10% synergy
Traveler's Amulet
10% of 2216 decks +10% synergy
Spine of Ish Sah
10% of 2216 decks +9% synergy
Welding Jar
10% of 2216 decks +10% synergy
Cloud Key
10% of 2216 decks +8% synergy
Witching Well
10% of 878 decks +10% synergy
Chromatic Star
10% of 2216 decks +10% synergy
Golgari Locket
10% of 159 decks +10% synergy
Urn of Godfire
10% of 2199 decks +10% synergy
Dross Skullbomb
9% of 606 decks +9% synergy
Moonsilver Key
9% of 2216 decks +8% synergy
Mnemonic Sphere
9% of 878 decks +9% synergy
Stonespeaker Crystal
9% of 2216 decks +8% synergy
Elixir of Immortality
8% of 2216 decks +7% synergy
Nihil Spellbomb
8% of 606 decks +8% synergy
Basilica Skullbomb
8% of 477 decks +8% synergy
Boros Locket
8% of 217 decks +7% synergy
Surgical Skullbomb
8% of 878 decks +8% synergy
Candy Trail
8% of 1811 decks +8% synergy
Bumbleflower's Sharepot
8% of 979 decks +8% synergy
Sensei's Divining Top
8% of 2216 decks +3% synergy
Azorius Locket
8% of 262 decks +7% synergy
Golgari Cluestone
8% of 159 decks +7% synergy
Dragonspark Reactor
8% of 836 decks +7% synergy
Skullclamp
7% of 2216 decks -4% synergy
Codex Shredder
7% of 2216 decks +7% synergy
Boom Box
7% of 1254 decks +7% synergy
Clock of Omens
7% of 2216 decks +6% synergy
Metalspinner's Puzzleknot
7% of 606 decks +7% synergy
Izzet Locket
7% of 352 decks +6% synergy
Brittle Effigy
7% of 2216 decks +7% synergy
Enchantments
Thopter Spy Network
14% of 878 decks +11% synergy
Efficient Construction
12% of 878 decks +11% synergy
Mirrodin Besieged
10% of 878 decks +9% synergy
Agent of the Iron Throne
8% of 606 decks +6% synergy
Jeskai Ascendancy
8% of 120 decks +3% synergy
Pacifism
8% of 477 decks +7% synergy
Minimus Containment
7% of 477 decks +7% synergy
Mechanized Production
7% of 878 decks +4% synergy
Storm the Vault
7% of 352 decks +4% synergy
Vampiric Rites
7% of 606 decks +4% synergy
Pia's Revolution
7% of 836 decks +6% synergy
Phyrexian Arena
6% of 606 decks -9% synergy
Garruk's Uprising
6% of 543 decks -10% synergy
The Antiquities War
6% of 878 decks +6% synergy
Kaya's Ghostform
6% of 606 decks +2% synergy
Wild Growth
6% of 543 decks -5% synergy
Deathreap Ritual
6% of 159 decks +1% synergy
Shiny Impetus
6% of 836 decks +3% synergy
Black Market
5% of 606 decks +1% synergy
Song of Creation
5% of 76 decks +2% synergy
Cage of Hands
5% of 477 decks +5% synergy
Propaganda
5% of 878 decks -7% synergy
Planeswalkers
Saheeli, Sublime Artificer
19% of 352 decks +14% synergy
Ugin, the Ineffable
14% of 2216 decks +12% synergy
Daretti, Scrap Savant
9% of 836 decks +6% synergy
Karn, Living Legacy
6% of 2216 decks +6% synergy
Utility Lands
Seat of the Synod
24% of 878 decks +18% synergy
Rogue's Passage
22% of 2216 decks +2% synergy
Great Furnace
22% of 836 decks +16% synergy
Temple of the False God
18% of 2216 decks +9% synergy
Bojuka Bog
18% of 606 decks -12% synergy
Reliquary Tower
17% of 2216 decks -13% synergy
Urza's Mine
16% of 2216 decks +15% synergy
Urza's Power Plant
16% of 2216 decks +15% synergy
Urza's Tower
16% of 2216 decks +15% synergy
Ancient Den
16% of 477 decks +11% synergy
Tree of Tales
13% of 543 decks +11% synergy
War Room
13% of 2216 decks +7% synergy
Shrine of the Forsaken Gods
13% of 2216 decks +11% synergy
Vault of Whispers
12% of 606 decks +8% synergy
Inventors' Fair
12% of 2216 decks +8% synergy
Kessig Wolf Run
11% of 248 decks -5% synergy
Academy Ruins
11% of 878 decks +6% synergy
Zhalfirin Void
10% of 2216 decks +10% synergy
Blast Zone
10% of 2216 decks +9% synergy
Tomb of the Spirit Dragon
10% of 2216 decks +9% synergy
Urza's Factory
9% of 2216 decks +9% synergy
Field of Ruin
8% of 2216 decks +6% synergy
Arch of Orazca
8% of 2216 decks +7% synergy
Archway of Innovation
8% of 442 decks +5% synergy
Urza's Saga
8% of 2216 decks +1% synergy
Forgotten Cave
8% of 836 decks +4% synergy
Bonders' Enclave
8% of 2216 decks +6% synergy
Radiant Fountain
8% of 2216 decks +7% synergy
Guildless Commons
8% of 2216 decks +6% synergy
Cabal Coffers
8% of 606 decks -3% synergy
Phyrexia's Core
7% of 2216 decks +7% synergy
Mortuary Mire
7% of 606 decks +3% synergy
Ghost Quarter
7% of 2216 decks +5% synergy
Cryptic Caves
7% of 2216 decks +7% synergy
Mishra's Factory
7% of 2216 decks +6% synergy
Hidden Courtyard
7% of 370 decks +6% synergy
Treasure Vault
7% of 2216 decks +4% synergy
Scavenger Grounds
6% of 2216 decks +3% synergy
Mystic Sanctuary
6% of 878 decks -5% synergy
Geier Reach Sanitarium
6% of 2216 decks +3% synergy
Mage-Ring Network
6% of 2216 decks +6% synergy
Emergence Zone
6% of 2216 decks +4% synergy
Tyrite Sanctum
6% of 2216 decks +4% synergy
Witch's Cottage
6% of 606 decks +2% synergy
Thespian's Stage
6% of 2216 decks +3% synergy
Sequestered Stash
6% of 2216 decks +5% synergy
Sea Gate Wreckage
5% of 2216 decks +5% synergy
Barren Moor
5% of 606 decks +2% synergy
Secluded Steppe
5% of 477 decks +2% synergy
Tocasia's Dig Site
5% of 2216 decks +5% synergy
Mana Artifacts
Sol Ring
59% of 2216 decks -26% synergy
Arcane Signet
32% of 2216 decks -40% synergy
Izzet Signet
29% of 352 decks +1% synergy
Talisman of Creativity
24% of 352 decks -4% synergy
Sky Diamond
24% of 878 decks +19% synergy
Fire Diamond
23% of 836 decks +18% synergy
Everflowing Chalice
22% of 2216 decks +18% synergy
Boros Signet
21% of 217 decks -1% synergy
Marble Diamond
21% of 477 decks +17% synergy
Azorius Signet
19% of 262 decks -6% synergy
Rakdos Signet
19% of 208 decks -10% synergy
Charcoal Diamond
19% of 606 decks +14% synergy
Dimir Signet
18% of 249 decks -11% synergy
Moss Diamond
18% of 543 decks +17% synergy
Thought Vessel
17% of 2216 decks -0% synergy
Orzhov Signet
16% of 205 decks -11% synergy
Thran Dynamo
15% of 2216 decks +11% synergy
Simic Signet
15% of 179 decks +1% synergy
Gruul Signet
12% of 248 decks +1% synergy
Golgari Signet
12% of 159 decks -0% synergy
Prophetic Prism
11% of 2216 decks +10% synergy
Talisman of Conviction
11% of 217 decks -13% synergy
Talisman of Indulgence
11% of 208 decks -16% synergy
Worn Powerstone
10% of 2216 decks +8% synergy
Liquimetal Torque
10% of 2216 decks +7% synergy
Talisman of Impulse
10% of 248 decks +0% synergy
Fellwar Stone
10% of 2216 decks -11% synergy
Prismatic Lens
9% of 2216 decks +7% synergy
Basalt Monolith
8% of 2216 decks +6% synergy
Talisman of Progress
8% of 262 decks -16% synergy
Selesnya Signet
7% of 109 decks -1% synergy
Talisman of Dominance
7% of 249 decks -25% synergy
Decanter of Endless Water
7% of 2216 decks +3% synergy
Moonsnare Prototype
7% of 878 decks +6% synergy
Pristine Talisman
6% of 2216 decks +5% synergy
Sisay's Ring
6% of 2216 decks +6% synergy
Gilded Lotus
6% of 2216 decks +3% synergy
Midnight Clock
6% of 878 decks +0% synergy
Blinkmoth Urn
6% of 2216 decks +5% synergy
Slagstone Refinery
6% of 2216 decks +5% synergy
Talisman of Curiosity
6% of 179 decks -7% synergy
Seer's Lantern
5% of 2216 decks +5% synergy
Lands
Mystic Monastery
32% of 120 decks +5% synergy
Command Tower
31% of 2216 decks -44% synergy
Slagwoods Bridge
28% of 248 decks +26% synergy
Crumbling Necropolis
27% of 107 decks -4% synergy
Cinder Glade
26% of 248 decks -13% synergy
Arcane Sanctum
24% of 122 decks -4% synergy
Seaside Citadel
23% of 62 decks -4% synergy
Jungle Hollow
22% of 159 decks +13% synergy
Swiftwater Cliffs
22% of 352 decks +15% synergy
Silverbluff Bridge
21% of 352 decks +16% synergy
Izzet Boilerworks
21% of 352 decks +5% synergy
Jungle Shrine
21% of 52 decks -11% synergy
Frontier Bivouac
21% of 76 decks -7% synergy
Temple of Abandon
21% of 248 decks +7% synergy
Scoured Barrens
20% of 205 decks +11% synergy
Mistvault Bridge
20% of 249 decks +16% synergy
Savage Lands
20% of 50 decks -3% synergy
Evolving Wilds
20% of 2216 decks -1% synergy
Sunken Hollow
20% of 249 decks -15% synergy
Darkmoss Bridge
19% of 159 decks +16% synergy
Prairie Stream
19% of 262 decks -14% synergy
Bloodfell Caves
19% of 208 decks +12% synergy
Rustvale Bridge
19% of 217 decks +14% synergy
Boros Garrison
18% of 217 decks +4% synergy
Razortide Bridge
18% of 262 decks +11% synergy
Azorius Chancery
18% of 262 decks +3% synergy
Wind-Scarred Crag
18% of 217 decks +11% synergy
Temple of Triumph
18% of 217 decks +1% synergy
Mossfire Valley
17% of 248 decks +6% synergy
Game Trail
17% of 248 decks +1% synergy
Myriad Landscape
17% of 2216 decks -1% synergy
Opulent Palace
17% of 70 decks -10% synergy
Rugged Highlands
17% of 248 decks +11% synergy
Thornwood Falls
17% of 179 decks +9% synergy
Tranquil Cove
16% of 262 decks +10% synergy
Temple of Epiphany
16% of 352 decks -2% synergy
Rootbound Crag
16% of 248 decks -9% synergy
Sandsteppe Citadel
16% of 56 decks -10% synergy
Xander's Lounge
16% of 107 decks -10% synergy
Rakdos Carnarium
16% of 208 decks +2% synergy
Spire Garden
16% of 248 decks -8% synergy
Stomping Ground
16% of 248 decks -25% synergy
Golgari Rot Farm
16% of 159 decks -2% synergy
Temple of Plenty
16% of 109 decks +2% synergy
Drossforge Bridge
15% of 208 decks +12% synergy
Rakdos Guildgate
15% of 208 decks +11% synergy
Sulfur Falls
15% of 352 decks -17% synergy
Karplusan Forest
15% of 248 decks -2% synergy
Perilous Landscape
15% of 66 decks +7% synergy
Simic Growth Chamber
15% of 179 decks -5% synergy