Managorger Hydra (Card)
Managorger Hydra
In 104896 decks
4% of 2625765 decks
Feb 10, 2025
The Top 10 Most Played Commander Cards from FDN
Foundations brings the best of Core Sets back to Magic until 2029!
Jan 9, 2025
Deck Forge: Minsc & Boo, Timeless Heroes
Bennie takes a cool Commander deck built by a Magic creator and compares it to the example decklist that's generated by EDHREC.
Shalai and Hallar
66.85% of 10629 decks
7106 decks
Ms. Bumbleflower
53.05% of 12446 decks
6602 decks
Gargos, Vicious Watcher
85.58% of 6059 decks
5185 decks
Zaxara, the Exemplary
31.27% of 13516 decks
4226 decks
Minsc & Boo, Timeless Heroes
52.70% of 7047 decks
3714 decks
Bright-Palm, Soul Awakener
73.23% of 3777 decks
2766 decks
Vorinclex, Monstrous Raider
59.29% of 4215 decks
2499 decks
Ghalta, Primal Hunger
42.61% of 5856 decks
2495 decks
Volo, Guide to Monsters
31.55% of 7893 decks
2490 decks
Tayam, Luminous Enigma
37.88% of 6354 decks
2407 decks
Atraxa, Praetors' Voice
5.78% of 35812 decks
2070 decks
Falco Spara, Pactweaver
43.74% of 4529 decks
1981 decks
Sovereign Okinec Ahau
41.40% of 4365 decks
1807 decks
Polukranos Reborn
68.16% of 2619 decks
1785 decks
Ezuri, Claw of Progress
24.34% of 6599 decks
1606 decks
Bristly Bill, Spine Sower
40.64% of 3713 decks
1509 decks
Animar, Soul of Elements
8.09% of 17558 decks
1421 decks
Faldorn, Dread Wolf Herald
22.18% of 6392 decks
1418 decks
New Cards
Willowrush Verge
8% of 9711 decks
+2% synergy
Wastewood Verge
6% of 4447 decks
+0% synergy
Temur Battlecrier
5% of 360 decks
+1% synergy
Felothar, Dawn of the Abzan
5% of 262 decks
+4% synergy
Sab-Sunen, Luxa Embodied
4% of 9711 decks
+3% synergy
High Synergy Cards
Forgotten Ancient
53% of 104896 decks
+47% synergy
Corpsejack Menace
46% of 21393 decks
+41% synergy
Kalonian Hydra
42% of 104896 decks
+39% synergy
Conclave Mentor
42% of 43691 decks
+38% synergy
Hardened Scales
46% of 104896 decks
+36% synergy
Simic Ascendancy
41% of 39049 decks
+35% synergy
Gavony Township
44% of 43691 decks
+35% synergy
Bright-Palm, Soul Awakener
36% of 14288 decks
+34% synergy
Abzan Falconer
37% of 43691 decks
+34% synergy
Mikaeus, the Lunarch
36% of 43691 decks
+34% synergy
Top Cards
Swords to Plowshares
74% of 43691 decks
+12% synergy
Cultivate
59% of 104896 decks
+14% synergy
Rhythm of the Wild
50% of 32325 decks
+27% synergy
Beast Within
48% of 104896 decks
+10% synergy
Generous Gift
46% of 43691 decks
+21% synergy
Path to Exile
45% of 43691 decks
-1% synergy
Kodama's Reach
43% of 104896 decks
+13% synergy
Rampant Growth
42% of 104896 decks
+7% synergy
Counterspell
41% of 39049 decks
-2% synergy
Inspiring Call
40% of 104896 decks
+32% synergy
Game Changers
Cyclonic Rift
20% of 39049 decks
-7% synergy
Rhystic Study
18% of 39049 decks
-9% synergy
Smothering Tithe
15% of 43691 decks
-9% synergy
Jeska's Will
13% of 32325 decks
-3% synergy
Demonic Tutor
13% of 21393 decks
-8% synergy
Fierce Guardianship
10% of 39049 decks
-8% synergy
Vampiric Tutor
10% of 21393 decks
-8% synergy
Enlightened Tutor
9% of 43691 decks
-8% synergy
Trouble in Pairs
5% of 31073 decks
+0% synergy
Creatures
Kami of Whispered Hopes
40% of 104896 decks
+33% synergy
Kutzil, Malamet Exemplar
38% of 34795 decks
+24% synergy
Halana and Alena, Partners
38% of 32325 decks
+33% synergy
Champion of Lambholt
35% of 104896 decks
+28% synergy
Ignoble Hierarch
35% of 4385 decks
+9% synergy
Rishkar, Peema Renegade
33% of 104896 decks
+29% synergy
Herald of Secret Streams
31% of 39049 decks
+28% synergy
Llanowar Elves
31% of 104896 decks
+10% synergy
Winding Constrictor
31% of 21393 decks
+27% synergy
Good-Fortune Unicorn
31% of 43691 decks
+28% synergy
Kwain, Itinerant Meddler
30% of 15899 decks
+27% synergy
Gyre Sage
29% of 104896 decks
+25% synergy
Incubation Druid
28% of 104896 decks
+23% synergy
Fathom Mage
28% of 39049 decks
+24% synergy
Chasm Skulker
28% of 39049 decks
+24% synergy
Twenty-Toed Toad
28% of 23019 decks
+26% synergy
Goblin Anarchomancer
28% of 32325 decks
+14% synergy
Taurean Mauler
28% of 32325 decks
+24% synergy
Hamza, Guardian of Arashin
27% of 43691 decks
+25% synergy
Birds of Paradise
27% of 104896 decks
-0% synergy
Master Biomancer
27% of 39049 decks
+23% synergy
Mr. Foxglove
26% of 11388 decks
+24% synergy
Evolution Sage
26% of 104896 decks
+19% synergy
Elvish Mystic
25% of 104896 decks
+8% synergy
Hydroid Krasis
25% of 39049 decks
+20% synergy
Winged Hive Tyrant
25% of 5740 decks
+24% synergy
Shalai and Hallar
24% of 14277 decks
+21% synergy
Sunscorch Regent
24% of 43691 decks
+22% synergy
Krenko, Tin Street Kingpin
24% of 32325 decks
+19% synergy
Kodama of the West Tree
23% of 104896 decks
+19% synergy
Avacyn's Pilgrim
23% of 43691 decks
+8% synergy
Beast Whisperer
22% of 104896 decks
+10% synergy
Mossborn Hydra
22% of 37719 decks
+18% synergy
Sakura-Tribe Elder
21% of 104896 decks
+4% synergy
Esper Sentinel
21% of 43691 decks
+1% synergy
Shalai, Voice of Plenty
20% of 43691 decks
+14% synergy
Defiler of Vigor
20% of 104896 decks
+17% synergy
Abzan Battle Priest
20% of 43691 decks
+19% synergy
Grumgully, the Generous
20% of 32325 decks
+18% synergy
Vorel of the Hull Clade
19% of 39049 decks
+16% synergy
Thrummingbird
19% of 39049 decks
+16% synergy
Dusk Legion Duelist
19% of 43691 decks
+17% synergy
Eternal Witness
19% of 104896 decks
-1% synergy
Goldvein Hydra
18% of 67252 decks
+16% synergy
Lae'zel, Vlaakith's Champion
18% of 43691 decks
+15% synergy
Dreamtide Whale
18% of 24852 decks
+15% synergy
Evolution Witness
17% of 61552 decks
+14% synergy
Genesis Hydra
17% of 104896 decks
+15% synergy
Sovereign Okinec Ahau
17% of 34920 decks
+14% synergy
Steelburr Champion
17% of 23890 decks
+16% synergy
Instants
Heroic Intervention
36% of 104896 decks
+6% synergy
Chaos Warp
29% of 32325 decks
-3% synergy
Assassin's Trophy
27% of 21393 decks
-3% synergy
Return of the Wildspeaker
26% of 104896 decks
+13% synergy
An Offer You Can't Refuse
25% of 39049 decks
+3% synergy
Growth Spiral
24% of 39049 decks
+2% synergy
Long River's Pull
23% of 23209 decks
+20% synergy
Negate
21% of 39049 decks
-2% synergy
Perch Protection
20% of 23890 decks
+18% synergy
Putrefy
20% of 21393 decks
+4% synergy
Anguished Unmaking
18% of 9119 decks
-6% synergy
Unbreakable Formation
18% of 43691 decks
+11% synergy
Arcane Denial
17% of 39049 decks
-3% synergy
Terminate
17% of 4385 decks
-4% synergy
Abzan Charm
16% of 9119 decks
+11% synergy
Boros Charm
16% of 14288 decks
-9% synergy
Teferi's Protection
16% of 43691 decks
-4% synergy
Revitalizing Repast
15% of 11770 decks
+6% synergy
Dawn's Truce
14% of 24116 decks
+6% synergy
Snakeskin Veil
14% of 104896 decks
+10% synergy
Perplexing Test
14% of 39049 decks
+12% synergy
Rapid Hybridization
14% of 39049 decks
+4% synergy
Repulsive Mutation
13% of 29722 decks
+10% synergy
Fling
12% of 32325 decks
+10% synergy
Deflecting Swat
11% of 32325 decks
-5% synergy
Mutational Advantage
11% of 28424 decks
+7% synergy
Ram Through
11% of 104896 decks
+8% synergy
Worldly Tutor
11% of 104896 decks
-2% synergy
Dromoka's Command
11% of 43691 decks
+10% synergy
Pongify
11% of 39049 decks
-1% synergy
Invigorating Surge
11% of 104896 decks
+9% synergy
Return to Nature
11% of 104896 decks
+5% synergy
Hunter's Insight
11% of 104896 decks
+7% synergy
Krosan Grip
11% of 104896 decks
+4% synergy
Dovin's Veto
10% of 15899 decks
-8% synergy
Brainstorm
10% of 39049 decks
-10% synergy
Stroke of Midnight
10% of 37392 decks
+0% synergy
Eladamri's Call
10% of 43691 decks
-0% synergy
Nature's Claim
10% of 104896 decks
+1% synergy
Peerless Recycling
10% of 55285 decks
+8% synergy
Ripples of Potential
10% of 32220 decks
+8% synergy
Tamiyo's Safekeeping
10% of 104896 decks
+4% synergy
Riot Control
10% of 43691 decks
+9% synergy
Mana Drain
10% of 39049 decks
-5% synergy
Illusionist's Gambit
10% of 39049 decks
+9% synergy
Flawless Maneuver
9% of 43691 decks
-1% synergy
Despark
9% of 9119 decks
-6% synergy
Mortify
9% of 9119 decks
-3% synergy
Unleash Fury
9% of 32325 decks
+7% synergy
Kazuul's Fury
9% of 32325 decks
+7% synergy
Sorceries
Nature's Lore
37% of 104896 decks
+5% synergy
Blasphemous Act
33% of 32325 decks
-0% synergy
Farseek
32% of 104896 decks
-3% synergy
Villainous Wealth
31% of 10863 decks
+23% synergy
Three Visits
26% of 104896 decks
+2% synergy
Damning Verdict
24% of 43691 decks
+23% synergy
Rishkar's Expertise
23% of 104896 decks
+13% synergy
Tempt with Bunnies
21% of 23890 decks
+19% synergy
Ruinous Ultimatum
19% of 2017 decks
+1% synergy
Wave Goodbye
17% of 32220 decks
+15% synergy
Tezzeret's Gambit
16% of 39049 decks
+13% synergy
Eerie Ultimatum
14% of 9119 decks
+2% synergy
Chandra's Ignition
14% of 32325 decks
+9% synergy
Curse of the Swine
14% of 39049 decks
+10% synergy
Requisition Raid
13% of 28403 decks
+10% synergy
Fangs of Kalonia
13% of 60687 decks
+11% synergy
Decimate
13% of 32325 decks
+4% synergy
Overwhelming Stampede
12% of 104896 decks
+7% synergy
Exsanguinate
12% of 21393 decks
+6% synergy
Promise of Loyalty
12% of 43691 decks
+10% synergy
Stump Stomp
12% of 16913 decks
+6% synergy
Austere Command
12% of 43691 decks
-1% synergy
Toxic Deluge
11% of 21393 decks
-6% synergy
Shamanic Revelation
11% of 104896 decks
+3% synergy
Harmonize
11% of 104896 decks
+3% synergy
Wear Down
11% of 55602 decks
+9% synergy
Skyshroud Claim
11% of 104896 decks
+2% synergy
Farewell
11% of 43691 decks
-2% synergy
Vandalblast
10% of 32325 decks
-5% synergy
Damn
10% of 9119 decks
-6% synergy
Torment of Hailfire
10% of 21393 decks
+5% synergy
Explore
9% of 104896 decks
+0% synergy
Profane Command
9% of 21393 decks
+8% synergy
Bala Ged Recovery
9% of 104896 decks
+0% synergy
Secret Rendezvous
9% of 43691 decks
+6% synergy
Hull Breach
8% of 32325 decks
+4% synergy
Traverse the Outlands
7% of 104896 decks
+5% synergy
Unnatural Restoration
7% of 104896 decks
+4% synergy
Reanimate
7% of 21393 decks
-9% synergy
Supreme Verdict
7% of 15899 decks
-7% synergy
Tempt with Discovery
7% of 104896 decks
+3% synergy
Escape to the Wilds
7% of 32325 decks
+3% synergy
Ezuri's Predation
7% of 104896 decks
+3% synergy
Culling Ritual
6% of 21393 decks
-5% synergy
Merciless Eviction
6% of 9119 decks
+2% synergy
Bridgeworks Battle
6% of 61417 decks
+2% synergy
Duneblast
6% of 9119 decks
+3% synergy
Finale of Devastation
6% of 104896 decks
-2% synergy
Season of Gathering
6% of 55285 decks
+3% synergy
Victimize
6% of 21393 decks
-6% synergy
Utility Artifacts
Swiftfoot Boots
38% of 104896 decks
+10% synergy
The Ozolith
30% of 104896 decks
+27% synergy
Ozolith, the Shattered Spire
29% of 104710 decks
+24% synergy
The Great Henge
22% of 104896 decks
+12% synergy
Lightning Greaves
20% of 104896 decks
-5% synergy
Fist of Suns
20% of 1633 decks
+13% synergy
Door to Nothingness
17% of 1633 decks
+13% synergy
Emerald Medallion
11% of 104896 decks
+9% synergy
Commander's Sphere
11% of 104896 decks
-4% synergy
Mage Slayer
9% of 32325 decks
+6% synergy
Rhonas's Monument
7% of 104896 decks
+6% synergy
Mind Stone
6% of 104896 decks
-10% synergy
The Skullspore Nexus
6% of 86643 decks
+3% synergy
Power Fist
6% of 71065 decks
+4% synergy
Lifecrafter's Bestiary
6% of 104896 decks
+2% synergy
Combine Chrysalis
5% of 39049 decks
+4% synergy
Enchantments
Branching Evolution
33% of 104896 decks
+28% synergy
Garruk's Uprising
31% of 104896 decks
+15% synergy
Brokers Ascendancy
28% of 15899 decks
+22% synergy
Temur Ascendancy
28% of 5740 decks
+14% synergy
Felidar Retreat
27% of 43691 decks
+21% synergy
Uncivil Unrest
27% of 32257 decks
+26% synergy
All Will Be One
27% of 32325 decks
+25% synergy
Mayael's Aria
25% of 14288 decks
+23% synergy
Tribute to the World Tree
22% of 104896 decks
+15% synergy
Leyline of the Guildpact
22% of 1147 decks
+6% synergy
Abzan Ascendancy
22% of 9119 decks
+20% synergy
Innkeeper's Talent
21% of 55285 decks
+17% synergy
Leyline of Mutation
21% of 713 decks
+16% synergy
Cathars' Crusade
20% of 43691 decks
+14% synergy
Wizard Class
19% of 39049 decks
+15% synergy
Doubling Season
19% of 104896 decks
+9% synergy
Invigorating Hot Spring
18% of 32325 decks
+16% synergy
Court of Garenbrig
16% of 89896 decks
+13% synergy
Annie Joins Up
16% of 7533 decks
+3% synergy
The First Tyrannic War
16% of 5740 decks
+14% synergy
Hydra's Growth
15% of 104896 decks
+13% synergy
Unnatural Growth
14% of 104896 decks
+8% synergy
Together Forever
13% of 43691 decks
+12% synergy
Bred for the Hunt
13% of 39049 decks
+11% synergy
Communal Brewing
12% of 54669 decks
+11% synergy
Mirari's Wake
11% of 43691 decks
-2% synergy
Wild Growth
11% of 104896 decks
+1% synergy
Guardian Project
11% of 104896 decks
+2% synergy
Fisher's Talent
10% of 23019 decks
+9% synergy
Unbound Flourishing
10% of 104896 decks
+9% synergy
Inexorable Tide
9% of 39049 decks
+7% synergy
Colossal Majesty
9% of 104896 decks
+6% synergy
Maelstrom Nexus
9% of 1633 decks
+2% synergy
Hadana's Climb
9% of 39049 decks
+8% synergy
Resourceful Defense
9% of 43691 decks
+8% synergy
Virtue of Loyalty
9% of 37224 decks
+7% synergy
Phyrexian Arena
9% of 21393 decks
-7% synergy
Sylvan Library
8% of 104896 decks
-3% synergy
Propaganda
8% of 39049 decks
-4% synergy
Riveteers Ascendancy
8% of 4385 decks
+4% synergy
Tenuous Truce
8% of 43691 decks
+7% synergy
Primal Empathy
8% of 39049 decks
+7% synergy
Mystic Remora
8% of 39049 decks
-10% synergy
Kenrith's Transformation
8% of 104896 decks
+2% synergy
Greater Good
8% of 104896 decks
+3% synergy
Insidious Roots
7% of 14776 decks
+2% synergy
Vraska Joins Up
7% of 13157 decks
+4% synergy
Utopia Sprawl
7% of 104896 decks
-0% synergy
Elemental Bond
7% of 104896 decks
+2% synergy
Warstorm Surge
7% of 32325 decks
+2% synergy
Planeswalkers
Tamiyo, Field Researcher
35% of 15899 decks
+31% synergy
Ajani, the Greathearted
11% of 43691 decks
+8% synergy
Tyvar, Jubilant Brawler
8% of 21393 decks
+4% synergy
Nissa, Who Shakes the World
7% of 104896 decks
+5% synergy
Domri, Anarch of Bolas
7% of 32325 decks
+4% synergy
Garruk, Primal Hunter
7% of 104896 decks
+4% synergy
Xenagos, the Reveler
6% of 32325 decks
+4% synergy
Kiora, Behemoth Beckoner
6% of 39049 decks
+2% synergy
Minsc & Boo, Timeless Heroes
5% of 32325 decks
+3% synergy
Utility Lands
Kessig Wolf Run
39% of 32325 decks
+23% synergy
Reliquary Tower
36% of 104896 decks
+7% synergy
Rogue's Passage
34% of 104896 decks
+14% synergy
Mosswort Bridge
24% of 104896 decks
+13% synergy
Karn's Bastion
22% of 104896 decks
+17% synergy
Bojuka Bog
21% of 21393 decks
-9% synergy
Oran-Rief, the Vastwood
19% of 104896 decks
+14% synergy
Boseiju, Who Endures
15% of 104896 decks
-4% synergy
Yavimaya, Cradle of Growth
15% of 104896 decks
+6% synergy
Temple of the False God
14% of 104896 decks
+4% synergy
Castle Garenbrig
12% of 104896 decks
+7% synergy
Llanowar Reborn
12% of 104896 decks
+10% synergy
Raging Ravine
9% of 32325 decks
+6% synergy
Spinerock Knoll
9% of 32325 decks
+5% synergy
Otawara, Soaring City
8% of 39049 decks
-8% synergy
Novijen, Heart of Progress
8% of 39049 decks
+7% synergy
Alchemist's Refuge
8% of 39049 decks
+1% synergy
Nykthos, Shrine to Nyx
7% of 104896 decks
+2% synergy
Lair of the Hydra
7% of 104896 decks
+5% synergy
Skarrg, the Rage Pits
7% of 32325 decks
+4% synergy
Castle Embereth
5% of 32325 decks
+2% synergy
Phyrexian Tower
5% of 21393 decks
-3% synergy
Arena of Glory
5% of 16646 decks
-1% synergy
Takenuma, Abandoned Mire
5% of 21393 decks
-5% synergy
Lumbering Falls
5% of 39049 decks
+3% synergy
Mana Artifacts
Sol Ring
84% of 104896 decks
+0% synergy
Arcane Signet
64% of 104896 decks
-8% synergy
Timeless Lotus
24% of 1633 decks
+12% synergy
Simic Signet
20% of 39049 decks
+6% synergy
Thought Vessel
15% of 104896 decks
-2% synergy
Gruul Signet
14% of 32325 decks
+3% synergy
Golgari Signet
14% of 21393 decks
+2% synergy
Fellwar Stone
11% of 104896 decks
-10% synergy
Talisman of Curiosity
11% of 39049 decks
-2% synergy
Selesnya Signet
11% of 43691 decks
+2% synergy
Talisman of Unity
10% of 43691 decks
+2% synergy
Talisman of Resilience
9% of 21393 decks
-3% synergy
Talisman of Impulse
9% of 32325 decks
-1% synergy
Orzhov Signet
8% of 9119 decks
-19% synergy
Dimir Signet
8% of 10863 decks
-21% synergy
Rakdos Signet
8% of 4385 decks
-21% synergy
Izzet Signet
7% of 5740 decks
-21% synergy
Chromatic Lantern
6% of 104896 decks
-3% synergy
Elementalist's Palette
6% of 104896 decks
+5% synergy
Talisman of Conviction
6% of 14288 decks
-18% synergy
Boros Signet
6% of 14288 decks
-17% synergy
Everflowing Chalice
6% of 104896 decks
+1% synergy
Lands
Command Tower
74% of 104896 decks
-0% synergy
Cinder Glade
64% of 32325 decks
+25% synergy
Jungle Shrine
61% of 14288 decks
+29% synergy
Canopy Vista
61% of 43691 decks
+24% synergy
Seaside Citadel
60% of 15899 decks
+33% synergy
Prairie Stream
52% of 15899 decks
+18% synergy
Hinterland Harbor
51% of 39049 decks
+22% synergy
Opulent Palace
49% of 10863 decks
+22% synergy
Glacial Fortress
48% of 15899 decks
+21% synergy
Frontier Bivouac
46% of 5740 decks
+18% synergy
Yavimaya Coast
46% of 39049 decks
+19% synergy
Game Trail
42% of 32325 decks
+25% synergy
Sunpetal Grove
41% of 43691 decks
+17% synergy
Overgrown Tomb
41% of 21393 decks
-1% synergy
Sandsteppe Citadel
40% of 9119 decks
+15% synergy
Adarkar Wastes
39% of 15899 decks
+20% synergy
Stomping Ground
39% of 32325 decks
-2% synergy
Ketria Triome
39% of 5740 decks
+7% synergy
Savage Lands
39% of 4385 decks
+15% synergy
Temple Garden
38% of 43691 decks
-1% synergy
Exotic Orchard
38% of 104896 decks
+2% synergy
Godless Shrine
38% of 9119 decks
-2% synergy
Zagoth Triome
38% of 10863 decks
+8% synergy
Jetmir's Garden
38% of 14288 decks
+7% synergy
Temple of Mystery
37% of 39049 decks
+19% synergy
Indatha Triome
36% of 9119 decks
+6% synergy
Breeding Pool
36% of 39049 decks
-5% synergy
The World Tree
35% of 1633 decks
+3% synergy
Ziatora's Proving Ground
35% of 4385 decks
+5% synergy
Spara's Headquarters
34% of 15899 decks
+5% synergy
Sungrass Prairie
34% of 43691 decks
+22% synergy
Temple of Abandon
34% of 32325 decks
+20% synergy
Rootbound Crag
34% of 32325 decks
+9% synergy
Furycalm Snarl
33% of 14288 decks
+20% synergy
Temple of Plenty
33% of 43691 decks
+20% synergy
Hallowed Fountain
33% of 15899 decks
-7% synergy
Rejuvenating Springs
33% of 39049 decks
+5% synergy
Woodland Cemetery
33% of 21393 decks
+4% synergy
Watery Grave
33% of 10863 decks
-8% synergy
Skycloud Expanse
33% of 15899 decks
+20% synergy
Rockfall Vale
32% of 32325 decks
+10% synergy
Temple of Enlightenment
32% of 15899 decks
+15% synergy
Sacred Foundry
31% of 14288 decks
-4% synergy
Spire Garden
31% of 32325 decks
+7% synergy
Bountiful Promenade
31% of 43691 decks
+7% synergy
Mossfire Valley
31% of 32325 decks
+20% synergy
Flooded Grove
31% of 39049 decks
+18% synergy
Steam Vents
31% of 5740 decks
-8% synergy
Brushland
30% of 43691 decks
+13% synergy
Seachrome Coast
30% of 15899 decks
+25% synergy