Marvo, Deep Operative (Commander) - Optimized Combo

Background image for The Top 10 Most Played Kindred Cards in Commander
Nick Price
Feb 4, 2026
The Top 10 Most Played Kindred Cards in Commander
Let's look at that rare card type we only see every few sets, kindred, and use EDHREC data to see which ones get the most Commander play.
Deck Filters
Cardsphere
Archidekt
Commander Spellbook
Moxfield
Scryfall
MTGStocks
Dream Harvest
25%inclusion1 decks4 decks
21%synergy
High Synergy Cards
Research the Deep
89%inclusion8 decks9 decks
87%synergy
Hullbreaker Horror
100%inclusion9 decks9 decks
84%synergy
Hoarder's Greed
78%inclusion7 decks9 decks
76%synergy
Whirlpool Whelm
78%inclusion7 decks9 decks
76%synergy
Sensei's Divining Top
78%inclusion7 decks9 decks
69%synergy
Captivating Glance
67%inclusion6 decks9 decks
65%synergy
Lantern of Insight
67%inclusion6 decks9 decks
64%synergy
Auton Soldier
67%inclusion6 decks9 decks
63%synergy
Doom Whisperer
67%inclusion6 decks9 decks
62%synergy
Scattering Stroke
56%inclusion5 decks9 decks
54%synergy
Top Cards
Brainstorm
78%inclusion7 decks9 decks
47%synergy
Dark Ritual
67%inclusion6 decks9 decks
31%synergy
One with the Multiverse
56%inclusion5 decks9 decks
53%synergy
Revive the Fallen
56%inclusion5 decks9 decks
54%synergy
Nezahal, Primal Tide
56%inclusion5 decks9 decks
52%synergy
Peer into the Abyss
44%inclusion4 decks9 decks
43%synergy
Lim-Dûl's Vault
44%inclusion4 decks9 decks
36%synergy
Broken Ambitions
44%inclusion4 decks9 decks
43%synergy
Nexus of Fate
44%inclusion4 decks9 decks
43%synergy
Pulling Teeth
44%inclusion4 decks9 decks
43%synergy
Game Changers
Mystical Tutor
67%inclusion6 decks9 decks
53%synergy
Bolas's Citadel
56%inclusion5 decks9 decks
50%synergy
Mana Vault
56%inclusion5 decks9 decks
50%synergy
Demonic Tutor
56%inclusion5 decks9 decks
36%synergy
Vampiric Tutor
56%inclusion5 decks9 decks
39%synergy
Mox Diamond
56%inclusion5 decks9 decks
51%synergy
Ancient Tomb
44%inclusion4 decks9 decks
36%synergy
Rhystic Study
44%inclusion4 decks9 decks
21%synergy
Force of Will
44%inclusion4 decks9 decks
34%synergy
Fierce Guardianship
44%inclusion4 decks9 decks
26%synergy
Creatures
Paperfin Rascal
44%inclusion4 decks9 decks
44%synergy
Hoarding Broodlord
33%inclusion3 decks9 decks
31%synergy
Thassa's Oracle
33%inclusion3 decks9 decks
25%synergy
Roaming Throne
33%inclusion3 decks9 decks
20%synergy
Crabomination
33%inclusion3 decks9 decks
32%synergy
Ringskipper
33%inclusion3 decks9 decks
32%synergy
Massacre Wurm
33%inclusion3 decks9 decks
25%synergy
Talion, the Kindly Lord
33%inclusion3 decks9 decks
27%synergy
Shard of the Nightbringer
33%inclusion3 decks9 decks
32%synergy
Jin-Gitaxias, Progress Tyrant
33%inclusion3 decks9 decks
30%synergy
Solemn Simulacrum
22%inclusion2 decks9 decks
10%synergy
Rune-Scarred Demon
22%inclusion2 decks9 decks
19%synergy
Brinelin, the Moon Kraken
22%inclusion2 decks9 decks
20%synergy
Opposition Agent
22%inclusion2 decks9 decks
14%synergy
Wizened Snitches
22%inclusion2 decks9 decks
22%synergy
Consecrated Sphinx
22%inclusion2 decks9 decks
19%synergy
Tidespout Tyrant
22%inclusion2 decks9 decks
22%synergy
Myojin of Cryptic Dreams
22%inclusion2 decks9 decks
21%synergy
Ornithopter of Paradise
22%inclusion2 decks9 decks
17%synergy
Hydroelectric Specimen
22%inclusion2 decks9 decks
14%synergy
Boggart Trawler
22%inclusion2 decks9 decks
16%synergy
The Reality Chip
22%inclusion2 decks9 decks
19%synergy
Archfiend of Despair
22%inclusion2 decks9 decks
22%synergy
Thought Monitor
22%inclusion2 decks9 decks
20%synergy
Astral Dragon
22%inclusion2 decks9 decks
20%synergy
Twilight Prophet
22%inclusion2 decks9 decks
19%synergy
Trench Gorger
22%inclusion2 decks9 decks
22%synergy
Noxious Gearhulk
22%inclusion2 decks9 decks
19%synergy
Archon of Cruelty
22%inclusion2 decks9 decks
17%synergy
Laboratory Maniac
22%inclusion2 decks9 decks
19%synergy
Ancient Cellarspawn
22%inclusion2 decks9 decks
17%synergy
Toxrill, the Corrosive
22%inclusion2 decks9 decks
16%synergy
Meteor Golem
22%inclusion2 decks9 decks
21%synergy
Elder Brain
22%inclusion2 decks9 decks
18%synergy
Orcish Bowmasters
22%inclusion2 decks9 decks
15%synergy
Nulldrifter
22%inclusion2 decks9 decks
22%synergy
Wrexial, the Risen Deep
22%inclusion2 decks9 decks
17%synergy
Giant Koi
14%inclusion1 decks7 decks
14%synergy
Maelstrom Colossus
11%inclusion1 decks9 decks
11%synergy
Elrond, Lord of Rivendell
11%inclusion1 decks9 decks
11%synergy
Hedron Crawler
11%inclusion1 decks9 decks
11%synergy
Caustic Bronco
11%inclusion1 decks9 decks
11%synergy
Hidetsugu and Kairi
11%inclusion1 decks9 decks
10%synergy
Xanathar, Guild Kingpin
11%inclusion1 decks9 decks
10%synergy
Thryx, the Sudden Storm
11%inclusion1 decks9 decks
10%synergy
Troll of Khazad-dûm
11%inclusion1 decks9 decks
9%synergy
Mulldrifter
11%inclusion1 decks9 decks
7%synergy
Gyruda, Doom of Depths
11%inclusion1 decks9 decks
7%synergy
Blood Speaker
11%inclusion1 decks9 decks
11%synergy
Psychosis Crawler
11%inclusion1 decks9 decks
9%synergy
Instants
Deadly Rollick
33%inclusion3 decks9 decks
14%synergy
Mana Drain
33%inclusion3 decks9 decks
16%synergy
Spy Network
33%inclusion3 decks9 decks
32%synergy
Demonic Consultation
33%inclusion3 decks9 decks
27%synergy
Force of Negation
33%inclusion3 decks9 decks
24%synergy
Otherworldly Gaze
33%inclusion3 decks9 decks
27%synergy
Counterspell
33%inclusion3 decks9 decks
-23%synergy
Cyclonic Rift
33%inclusion3 decks9 decks
10%synergy
Waterlogged Teachings
33%inclusion3 decks9 decks
22%synergy
Saw in Half
33%inclusion3 decks9 decks
30%synergy
Fell the Profane
22%inclusion2 decks9 decks
7%synergy
Tainted Pact
22%inclusion2 decks9 decks
17%synergy
An Offer You Can't Refuse
22%inclusion2 decks9 decks
-8%synergy
Mindbreak Trap
22%inclusion2 decks9 decks
18%synergy
Cabal Ritual
22%inclusion2 decks9 decks
17%synergy
Culling the Weak
22%inclusion2 decks9 decks
20%synergy
Flusterstorm
22%inclusion2 decks9 decks
16%synergy
Swan Song
22%inclusion2 decks9 decks
4%synergy
Arcane Denial
22%inclusion2 decks9 decks
-3%synergy
Misdirection
22%inclusion2 decks9 decks
16%synergy
Pact of Negation
22%inclusion2 decks9 decks
17%synergy
Dig Through Time
22%inclusion2 decks9 decks
12%synergy
Hagra Mauling
11%inclusion1 decks9 decks
8%synergy
Sacrifice
11%inclusion1 decks9 decks
10%synergy
Frantic Search
11%inclusion1 decks9 decks
-8%synergy
Mental Misstep
11%inclusion1 decks9 decks
6%synergy
Entomb
11%inclusion1 decks9 decks
3%synergy
Snuff Out
11%inclusion1 decks9 decks
5%synergy
Negate
11%inclusion1 decks9 decks
-21%synergy
Flare of Denial
11%inclusion1 decks9 decks
5%synergy
Price of Fame
11%inclusion1 decks9 decks
6%synergy
Brainsurge
11%inclusion1 decks9 decks
8%synergy
Ancient Excavation
11%inclusion1 decks9 decks
10%synergy
Dimir Charm
11%inclusion1 decks9 decks
9%synergy
Bane's Contingency
11%inclusion1 decks9 decks
11%synergy
Disallow
11%inclusion1 decks9 decks
9%synergy
Jwari Disruption
11%inclusion1 decks9 decks
9%synergy
Mental Journey
11%inclusion1 decks9 decks
11%synergy
Malakir Rebirth
11%inclusion1 decks9 decks
1%synergy
Silundi Vision
11%inclusion1 decks9 decks
9%synergy
Beyeen Veil
11%inclusion1 decks9 decks
11%synergy
Stifle
11%inclusion1 decks9 decks
10%synergy
Didn't Say Please
11%inclusion1 decks9 decks
6%synergy
Whirlwind Denial
11%inclusion1 decks9 decks
11%synergy
Sink into Stupor
11%inclusion1 decks9 decks
-4%synergy
Borne Upon a Wind
11%inclusion1 decks9 decks
9%synergy
Jace's Ingenuity
11%inclusion1 decks9 decks
11%synergy
Narset's Reversal
11%inclusion1 decks9 decks
8%synergy
Dismember
11%inclusion1 decks9 decks
5%synergy
Withering Torment
11%inclusion1 decks9 decks
-5%synergy
Sorceries
Aminatou's Augury
44%inclusion4 decks9 decks
42%synergy
Treasure Cruise
33%inclusion3 decks9 decks
25%synergy
Scheming Symmetry
33%inclusion3 decks9 decks
29%synergy
Beacon of Tomorrows
33%inclusion3 decks9 decks
32%synergy
Insatiable Avarice
33%inclusion3 decks9 decks
31%synergy
Weed Strangle
33%inclusion3 decks9 decks
32%synergy
Toxic Deluge
33%inclusion3 decks9 decks
7%synergy
Alrund's Epiphany
33%inclusion3 decks9 decks
33%synergy
Diabolic Tutor
22%inclusion2 decks9 decks
16%synergy
Imperial Seal
22%inclusion2 decks9 decks
16%synergy
Quantum Misalignment
22%inclusion2 decks9 decks
20%synergy
Mana Severance
22%inclusion2 decks9 decks
22%synergy
Sea Gate Restoration
22%inclusion2 decks9 decks
16%synergy
Agadeem's Awakening
22%inclusion2 decks9 decks
17%synergy
Lórien Revealed
22%inclusion2 decks9 decks
19%synergy
Diabolic Vision
22%inclusion2 decks9 decks
20%synergy
Army of the Damned
22%inclusion2 decks9 decks
15%synergy
Personal Tutor
22%inclusion2 decks9 decks
20%synergy
Reanimate
22%inclusion2 decks9 decks
-2%synergy
Irenicus's Vile Duplication
22%inclusion2 decks9 decks
17%synergy
Mind's Desire
22%inclusion2 decks9 decks
22%synergy
Great Intelligence's Plan
22%inclusion2 decks9 decks
21%synergy
Beseech the Mirror
22%inclusion2 decks9 decks
20%synergy
Chain of Smog
22%inclusion2 decks9 decks
22%synergy
Breach the Multiverse
22%inclusion2 decks9 decks
13%synergy
Ember Island Production
20%inclusion1 decks5 decks
19%synergy
Ponder
11%inclusion1 decks9 decks
-5%synergy
Walk the Aeons
11%inclusion1 decks9 decks
11%synergy
Inspiring Refrain
11%inclusion1 decks9 decks
11%synergy
Echo of Eons
11%inclusion1 decks9 decks
11%synergy
Profane Tutor
11%inclusion1 decks9 decks
9%synergy
Yawgmoth's Will
11%inclusion1 decks9 decks
10%synergy
Fraying Omnipotence
11%inclusion1 decks9 decks
11%synergy
Part the Waterveil
11%inclusion1 decks9 decks
11%synergy
Serum Visions
11%inclusion1 decks9 decks
7%synergy
Karn's Temporal Sundering
11%inclusion1 decks9 decks
10%synergy
Temporal Mastery
11%inclusion1 decks9 decks
8%synergy
Connive // Concoct
11%inclusion1 decks9 decks
8%synergy
Contingency Plan
11%inclusion1 decks9 decks
10%synergy
Bribery
11%inclusion1 decks9 decks
9%synergy
Dream Cache
11%inclusion1 decks9 decks
10%synergy
Interpret the Signs
11%inclusion1 decks9 decks
11%synergy
Bamboozle
11%inclusion1 decks9 decks
11%synergy
Beacon of Unrest
11%inclusion1 decks9 decks
10%synergy
Pelakka Predation
11%inclusion1 decks9 decks
11%synergy
Behold the Beyond
11%inclusion1 decks9 decks
11%synergy
Nanogene Conversion
11%inclusion1 decks9 decks
9%synergy
Heartless Conscription
11%inclusion1 decks9 decks
10%synergy
Beseech the Queen
11%inclusion1 decks9 decks
10%synergy
Cruel Tutor
11%inclusion1 decks9 decks
11%synergy
Utility Artifacts
Swiftfoot Boots
44%inclusion4 decks9 decks
20%synergy
Lightning Greaves
44%inclusion4 decks9 decks
17%synergy
Chimil, the Inner Sun
33%inclusion3 decks9 decks
33%synergy
The One Ring
22%inclusion2 decks9 decks
15%synergy
Aetherflux Reservoir
22%inclusion2 decks9 decks
21%synergy
Scroll Rack
22%inclusion2 decks9 decks
18%synergy
Codex Shredder
22%inclusion2 decks9 decks
20%synergy
Sapphire Medallion
22%inclusion2 decks9 decks
15%synergy
Mithril Coat
11%inclusion1 decks9 decks
7%synergy
Palantír of Orthanc
11%inclusion1 decks9 decks
9%synergy
Expedition Map
11%inclusion1 decks9 decks
9%synergy
Wand of Denial
11%inclusion1 decks9 decks
11%synergy
Jet Medallion
11%inclusion1 decks9 decks
3%synergy
Brotherhood Regalia
11%inclusion1 decks9 decks
8%synergy
Isochron Scepter
11%inclusion1 decks9 decks
8%synergy
Enchantments
Baneful Omen
44%inclusion4 decks9 decks
43%synergy
Counterbalance
22%inclusion2 decks9 decks
20%synergy
Aqueous Form
22%inclusion2 decks9 decks
15%synergy
Eldrazi Conscription
22%inclusion2 decks9 decks
22%synergy
Kozilek's Unsealing
22%inclusion2 decks9 decks
22%synergy
Virtue of Persistence
22%inclusion2 decks9 decks
20%synergy
Impostor Syndrome
17%inclusion1 decks6 decks
14%synergy
Cast Through Time
11%inclusion1 decks9 decks
11%synergy
Teferi's Ageless Insight
11%inclusion1 decks9 decks
8%synergy
Ancestral Knowledge
11%inclusion1 decks9 decks
11%synergy
Parallel Thoughts
11%inclusion1 decks9 decks
11%synergy
Spellweaver Volute
11%inclusion1 decks9 decks
11%synergy
Protection Racket
11%inclusion1 decks9 decks
11%synergy
Soothsaying
11%inclusion1 decks9 decks
10%synergy
Field of Dreams
11%inclusion1 decks9 decks
11%synergy
Kiora Bests the Sea God
11%inclusion1 decks9 decks
10%synergy
Mystic Remora
11%inclusion1 decks9 decks
-4%synergy
Necropotence
11%inclusion1 decks9 decks
8%synergy
Leyline of Anticipation
11%inclusion1 decks9 decks
6%synergy
Wound Reflection
11%inclusion1 decks9 decks
10%synergy
Black Market Connections
11%inclusion1 decks9 decks
1%synergy
Mind's Dilation
11%inclusion1 decks9 decks
9%synergy
Mirror Room // Fractured Realm
11%inclusion1 decks9 decks
9%synergy
Haunted Crossroads
11%inclusion1 decks9 decks
11%synergy
Phyrexian Arena
11%inclusion1 decks9 decks
-2%synergy
Planeswalkers
Professor Onyx
22%inclusion2 decks9 decks
21%synergy
Ugin, the Spirit Dragon
22%inclusion2 decks9 decks
22%synergy
Jace, Wielder of Mysteries
11%inclusion1 decks9 decks
9%synergy
Teferi, Temporal Pilgrim
11%inclusion1 decks9 decks
11%synergy
Utility Lands
Reliquary Tower
56%inclusion5 decks9 decks
19%synergy
Mystic Sanctuary
44%inclusion4 decks9 decks
27%synergy
Urborg, Tomb of Yawgmoth
44%inclusion4 decks9 decks
25%synergy
Rivendell
33%inclusion3 decks9 decks
28%synergy
Halimar Depths
33%inclusion3 decks9 decks
27%synergy
Urza's Saga
33%inclusion3 decks9 decks
28%synergy
Otawara, Soaring City
33%inclusion3 decks9 decks
15%synergy
City of Traitors
33%inclusion3 decks9 decks
33%synergy
Rogue's Passage
33%inclusion3 decks9 decks
6%synergy
Shizo, Death's Storehouse
22%inclusion2 decks9 decks
14%synergy
Bojuka Bog
22%inclusion2 decks9 decks
-17%synergy
Cephalid Coliseum
22%inclusion2 decks9 decks
17%synergy
Moonring Island
22%inclusion2 decks9 decks
21%synergy
Uthros, Titanic Godcore
14%inclusion1 decks7 decks
12%synergy
Minamo, School at Water's Edge
11%inclusion1 decks9 decks
7%synergy
Creeping Tar Pit
11%inclusion1 decks9 decks
3%synergy
Hall of the Bandit Lord
11%inclusion1 decks9 decks
11%synergy
Mistrise Village
11%inclusion1 decks9 decks
8%synergy
Crystal Vein
11%inclusion1 decks9 decks
11%synergy
Cabal Coffers
11%inclusion1 decks9 decks
0%synergy
Emergence Zone
11%inclusion1 decks9 decks
9%synergy
Command Beacon
11%inclusion1 decks9 decks
7%synergy
Academy Ruins
11%inclusion1 decks9 decks
7%synergy
Takenuma, Abandoned Mire
11%inclusion1 decks9 decks
-2%synergy
Thespian's Stage
11%inclusion1 decks9 decks
10%synergy
Sunken Palace
11%inclusion1 decks9 decks
10%synergy
Dark Depths
11%inclusion1 decks9 decks
10%synergy
Castle Vantress
11%inclusion1 decks9 decks
7%synergy
Temple of the False God
11%inclusion1 decks9 decks
1%synergy
Restless Reef
11%inclusion1 decks9 decks
4%synergy
Mana Artifacts
Arcane Signet
100%inclusion9 decks9 decks
16%synergy
Sol Ring
100%inclusion9 decks9 decks
12%synergy
Talisman of Dominance
67%inclusion6 decks9 decks
8%synergy
Lotus Petal
56%inclusion5 decks9 decks
48%synergy
Dimir Signet
44%inclusion4 decks9 decks
-16%synergy
Chrome Mox
44%inclusion4 decks9 decks
38%synergy
Grim Monolith
33%inclusion3 decks9 decks
32%synergy
Thought Vessel
33%inclusion3 decks9 decks
1%synergy
Mind Stone
33%inclusion3 decks9 decks
4%synergy
Chromatic Lantern
22%inclusion2 decks9 decks
20%synergy
Machine God's Effigy
22%inclusion2 decks9 decks
21%synergy
Fellwar Stone
22%inclusion2 decks9 decks
-9%synergy
Chromatic Orrery
22%inclusion2 decks9 decks
22%synergy
Thran Dynamo
22%inclusion2 decks9 decks
17%synergy
Worn Powerstone
22%inclusion2 decks9 decks
19%synergy
Mox Opal
22%inclusion2 decks9 decks
18%synergy
Pristine Talisman
11%inclusion1 decks9 decks
11%synergy
Hedron Archive
11%inclusion1 decks9 decks
9%synergy
Mox Amber
11%inclusion1 decks9 decks
5%synergy
Coveted Jewel
11%inclusion1 decks9 decks
11%synergy
Gilded Lotus
11%inclusion1 decks9 decks
8%synergy
Crystal Skull, Isu Spyglass
11%inclusion1 decks9 decks
9%synergy
Jeweled Amulet
11%inclusion1 decks9 decks
11%synergy
Skyclave Relic
11%inclusion1 decks9 decks
10%synergy
Lands
Command Tower
89%inclusion8 decks9 decks
1%synergy
Swamp
89%inclusion8 decks9 decks
-8%synergy
Island
89%inclusion8 decks9 decks
-8%synergy
Watery Grave
78%inclusion7 decks9 decks
31%synergy
Undercity Sewers
56%inclusion5 decks9 decks
35%synergy
Underground Sea
56%inclusion5 decks9 decks
43%synergy
Morphic Pool
56%inclusion5 decks9 decks
19%synergy
Gemstone Caverns
56%inclusion5 decks9 decks
50%synergy
Shipwreck Marsh
44%inclusion4 decks9 decks
5%synergy
Underground River
44%inclusion4 decks9 decks
5%synergy
Myriad Landscape
33%inclusion3 decks9 decks
11%synergy
Darkwater Catacombs
33%inclusion3 decks9 decks
-7%synergy
Verdant Catacombs
33%inclusion3 decks9 decks
26%synergy
Drowned Catacomb
33%inclusion3 decks9 decks
-20%synergy
Cavern of Souls
33%inclusion3 decks9 decks
24%synergy
Waterlogged Teachings
33%inclusion3 decks9 decks
22%synergy
Polluted Delta
33%inclusion3 decks9 decks
2%synergy
City of Brass
33%inclusion3 decks9 decks
27%synergy
Flooded Strand
33%inclusion3 decks9 decks
24%synergy
Tainted Isle
22%inclusion2 decks9 decks
-22%synergy
Fell the Profane
22%inclusion2 decks9 decks
7%synergy
Misty Rainforest
22%inclusion2 decks9 decks
14%synergy
Clearwater Pathway
22%inclusion2 decks9 decks
-3%synergy
Exotic Orchard
22%inclusion2 decks9 decks
-11%synergy
Temple of Deceit
22%inclusion2 decks9 decks
-14%synergy
Dimir Aqueduct
22%inclusion2 decks9 decks
-17%synergy
Sea Gate Restoration
22%inclusion2 decks9 decks
16%synergy
Agadeem's Awakening
22%inclusion2 decks9 decks
17%synergy
Hydroelectric Specimen
22%inclusion2 decks9 decks
14%synergy
Snow-Covered Island
22%inclusion2 decks9 decks
15%synergy
Boggart Trawler
22%inclusion2 decks9 decks
16%synergy
Darkslick Shores
22%inclusion2 decks9 decks
8%synergy
Evolving Wilds
22%inclusion2 decks9 decks
5%synergy
Scalding Tarn
22%inclusion2 decks9 decks
14%synergy
Sunken Hollow
22%inclusion2 decks9 decks
-44%synergy
Mana Confluence
22%inclusion2 decks9 decks
16%synergy
Snow-Covered Swamp
22%inclusion2 decks9 decks
15%synergy
Marsh Flats
22%inclusion2 decks9 decks
14%synergy
Crystal Grotto
22%inclusion2 decks9 decks
22%synergy
Bloodstained Mire
22%inclusion2 decks9 decks
14%synergy
Starting Town
22%inclusion2 decks9 decks
21%synergy
Hagra Mauling
11%inclusion1 decks9 decks
8%synergy
Prismatic Vista
11%inclusion1 decks9 decks
5%synergy
Fabled Passage
11%inclusion1 decks9 decks
3%synergy
Terramorphic Expanse
11%inclusion1 decks9 decks
0%synergy
Fetid Pools
11%inclusion1 decks9 decks
-5%synergy
Blackbloom Rogue
11%inclusion1 decks9 decks
10%synergy
Riveteers Overlook
11%inclusion1 decks9 decks
11%synergy
Spire of Industry
11%inclusion1 decks9 decks
9%synergy
Ash Barrens
11%inclusion1 decks9 decks
6%synergy