Sower of Discord (Card)

Sower of Discord
In 19451 decks 1% of 1995077 decks
Joshua Wood
Sep 14, 2023
Nearly Identical - Yuriko or Satoru?
What sets these two Dimir ninjutsu commanders apart, and which one comes out on top?
Jevin Lortie
Sep 23, 2020
Challenge the Stats – Xantcha, Sleeper Agent
Secret Agent Xanctha upgrades her gear!
Archidekt
Commander Spellbook
Moxfield
Scryfall
MTGStocks
Top Commanders (18)
Rakdos, the Showstopper
42.00% of 1381 decks 580 decks
Be'lakor, the Dark Master
41.88% of 8943 decks 3745 decks
Ob Nixilis, Unshackled
39.44% of 393 decks 155 decks
Xantcha, Sleeper Agent
35.12% of 2557 decks 898 decks
Rakdos, Lord of Riots
23.73% of 6603 decks 1567 decks
Taborax, Hope's Demise
23.33% of 1063 decks 248 decks
Kaalia of the Vast
21.12% of 15774 decks 3331 decks
Jon Irenicus, Shattered One
18.94% of 6796 decks 1287 decks
Raphael, Fiendish Savior
11.40% of 4018 decks 458 decks
Saskia the Unyielding
9.44% of 5373 decks 507 decks
Athreos, God of Passage
6.86% of 5744 decks 394 decks
Araumi of the Dead Tide
5.26% of 3652 decks 192 decks
Thantis, the Warweaver
4.31% of 3484 decks 150 decks
Kardur, Doomscourge
3.83% of 4204 decks 161 decks
Shirei, Shizo's Caretaker
3.05% of 4848 decks 148 decks
Aminatou, the Fateshifter
2.50% of 6189 decks 155 decks
K'rrik, Son of Yawgmoth
2.38% of 11276 decks 268 decks
Satoru Umezawa
2.29% of 9797 decks 224 decks
New Cards (5)
Rakdos, Patron of Chaos
70% of 2009 decks +68% synergy
Rakdos, the Muscle
43% of 190 decks +41% synergy
Aurelia, the Law Above
35% of 558 decks +32% synergy
Hedge Maze
33% of 24 decks +28% synergy
Overflowing Basin
33% of 9 decks +30% synergy
High Synergy Cards (10)
Gisela, Blade of Goldnight
77% of 4291 decks +76% synergy
Aurelia, the Warleader
72% of 4291 decks +70% synergy
Bloodletter of Aclazotz
57% of 4330 decks +53% synergy
Kaalia, Zenith Seeker
50% of 4272 decks +49% synergy
Bloodthirster
49% of 10794 decks +48% synergy
Lord Xander, the Collector
47% of 4502 decks +47% synergy
Herald of Slaanesh
47% of 10794 decks +46% synergy
Isshin, Two Heavens as One
47% of 3843 decks +46% synergy
Avacyn, Angel of Hope
47% of 5508 decks +46% synergy
Kardur, Doomscourge
46% of 13744 decks +45% synergy
Top Cards (10)
Swords to Plowshares
62% of 5508 decks +33% synergy
Counterspell
51% of 6941 decks +30% synergy
Farseek
50% of 1457 decks +34% synergy
Cultivate
49% of 1457 decks +27% synergy
Path to Exile
49% of 5508 decks +30% synergy
Boros Charm
48% of 4291 decks +42% synergy
Chaos Warp
47% of 14063 decks +31% synergy
Rune-Scarred Demon
46% of 19447 decks +45% synergy
Lord of Change
45% of 5982 decks +45% synergy
Blasphemous Act
45% of 14063 decks +29% synergy
Creatures (50)
Sephara, Sky's Blade
44% of 5445 decks +42% synergy
Liesa, Forgotten Archangel
44% of 5092 decks +43% synergy
Archfiend of Depravity
41% of 19447 decks +40% synergy
Vilis, Broker of Blood
40% of 19339 decks +38% synergy
Marisi, Breaker of the Coil
40% of 650 decks +39% synergy
Exalted Flamer of Tzeentch
38% of 4280 decks +37% synergy
Ignoble Hierarch
37% of 1045 decks +34% synergy
Master of Cruelties
36% of 14062 decks +36% synergy
Rakdos, Lord of Riots
35% of 14062 decks +35% synergy
Archfiend of Despair
35% of 19447 decks +34% synergy
Drana and Linvala
34% of 2677 decks +33% synergy
Mother of Runes
34% of 5508 decks +30% synergy
The Wise Mothman
33% of 9 decks +33% synergy
Harvester of Souls
33% of 19447 decks +32% synergy
Balor
33% of 12252 decks +32% synergy
Serra's Emissary
33% of 5207 decks +32% synergy
Rakdos, the Showstopper
33% of 14039 decks +32% synergy
Faeburrow Elder
33% of 726 decks +30% synergy
Ob Nixilis, Unshackled
31% of 19447 decks +30% synergy
Varragoth, Bloodsky Sire
31% of 18949 decks +29% synergy
Bloodgift Demon
30% of 19447 decks +30% synergy
Raphael, Fiendish Savior
30% of 12467 decks +29% synergy
Gyruda, Doom of Depths
30% of 6873 decks +29% synergy
Burning-Rune Demon
29% of 18884 decks +29% synergy
Angel of Despair
29% of 5507 decks +29% synergy
Reya Dawnbringer
29% of 5508 decks +28% synergy
Birds of Paradise
27% of 1457 decks +15% synergy
Mirri, Weatherlight Duelist
27% of 737 decks +26% synergy
Sakura-Tribe Elder
27% of 1457 decks +17% synergy
Lord of the Void
27% of 19447 decks +26% synergy
Angel of Serenity
27% of 5508 decks +26% synergy
Samut, Voice of Dissent
27% of 660 decks +26% synergy
Angelic Arbiter
26% of 5508 decks +26% synergy
Prince of Thralls
26% of 4578 decks +26% synergy
Bloodcrusher of Khorne
24% of 10794 decks +24% synergy
Orcus, Prince of Undeath
24% of 13574 decks +23% synergy
Razaketh, the Foulblooded
24% of 19447 decks +22% synergy
Roaming Throne
24% of 4331 decks +6% synergy
Great Unclean One
23% of 14380 decks +23% synergy
Yennett, Cryptic Sovereign
23% of 477 decks +23% synergy
Spark Double
23% of 6913 decks +19% synergy
Gahiji, Honored One
22% of 660 decks +22% synergy
Chaos Defiler
22% of 10793 decks +22% synergy
Reaper from the Abyss
22% of 19447 decks +22% synergy
Enigma Sphinx
22% of 477 decks +21% synergy
Plague Drone
22% of 14380 decks +21% synergy
Toski, Bearer of Secrets
21% of 1386 decks +18% synergy
Demonlord Belzenlok
21% of 19447 decks +21% synergy
Esper Sentinel
21% of 5195 decks +11% synergy
Firemane Commando
21% of 2392 decks +19% synergy
Instants (50)
Terminate
40% of 14062 decks +35% synergy
Anguished Unmaking
39% of 5507 decks +34% synergy
Dark Ritual
38% of 19447 decks +27% synergy
Bedevil
35% of 14039 decks +32% synergy
Beast Within
35% of 1457 decks +16% synergy
Teferi's Protection
34% of 5508 decks +25% synergy
Rakdos Charm
32% of 14062 decks +28% synergy
Heroic Intervention
31% of 1457 decks +18% synergy
Cyclonic Rift
28% of 6941 decks +14% synergy
Ghostly Flicker
27% of 6941 decks +24% synergy
Esper Charm
27% of 477 decks +26% synergy
Assassin's Trophy
27% of 1455 decks +20% synergy
Brainstorm
26% of 6941 decks +14% synergy
Negate
25% of 6941 decks +14% synergy
Arcane Denial
24% of 6941 decks +15% synergy
Crackling Doom
24% of 4290 decks +23% synergy
Blood for the Blood God!
22% of 9473 decks +21% synergy
Flawless Maneuver
21% of 5362 decks +17% synergy
Generous Gift
21% of 5457 decks +9% synergy
Final Showdown
21% of 52 decks +17% synergy
Mortify
21% of 5507 decks +18% synergy
Void Rend
21% of 360 decks +18% synergy
Mana Drain
20% of 6941 decks +12% synergy
Akroma's Will
19% of 5312 decks +15% synergy
An Offer You Can't Refuse
19% of 6591 decks +9% synergy
Vampiric Tutor
18% of 19447 decks +8% synergy
Despark
18% of 5468 decks +14% synergy
Deflecting Swat
18% of 13886 decks +10% synergy
Fierce Guardianship
17% of 6868 decks +9% synergy
Aethermage's Touch
16% of 477 decks +16% synergy
Essence Flux
16% of 6941 decks +15% synergy
Malakir Rebirth
16% of 19084 decks +11% synergy
Utter End
15% of 5507 decks +13% synergy
Enlightened Tutor
15% of 5508 decks +6% synergy
Stroke of Midnight
15% of 1481 decks +7% synergy
Deadly Rollick
14% of 19152 decks +9% synergy
Infernal Grasp
14% of 18348 decks +9% synergy
Displace
13% of 6941 decks +12% synergy
Dovin's Veto
12% of 453 decks +8% synergy
Return of the Wildspeaker
12% of 1440 decks +6% synergy
Eladamri's Call
12% of 737 decks +9% synergy
Fracture
12% of 5229 decks +10% synergy
Wrong Turn
12% of 6850 decks +11% synergy
Putrefy
11% of 1457 decks +8% synergy
Swan Song
11% of 6941 decks +3% synergy
Naya Charm
11% of 660 decks +10% synergy
Pongify
10% of 6941 decks +5% synergy
Return to Dust
10% of 5508 decks +8% synergy
Planar Incision
10% of 6657 decks +9% synergy
Frantic Search
9% of 6941 decks +3% synergy
Sorceries (50)
Ruinous Ultimatum
41% of 4239 decks +39% synergy
Kodama's Reach
37% of 1457 decks +21% synergy
Rampant Growth
34% of 1457 decks +18% synergy
Nature's Lore
33% of 1457 decks +18% synergy
Feed the Swarm
31% of 19076 decks +22% synergy
Demonic Tutor
31% of 19447 decks +18% synergy
Rite of Replication
28% of 6941 decks +26% synergy
Three Visits
27% of 1457 decks +15% synergy
Damn
26% of 5169 decks +22% synergy
Vandalblast
26% of 14063 decks +17% synergy
Reanimate
25% of 19447 decks +17% synergy
Farewell
21% of 4748 decks +14% synergy
Sign in Blood
20% of 19447 decks +15% synergy
Read the Bones
19% of 19447 decks +15% synergy
Toxic Deluge
19% of 19447 decks +10% synergy
Wrath of God
18% of 5508 decks +15% synergy
Night's Whisper
16% of 19447 decks +11% synergy
Insatiable Avarice
16% of 241 decks +11% synergy
Damnation
16% of 19447 decks +11% synergy
Skyshroud Claim
16% of 1457 decks +11% synergy
Faithless Looting
15% of 14063 decks +7% synergy
Guided Passage
15% of 171 decks +15% synergy
Vindicate
15% of 5507 decks +13% synergy
Patriarch's Bidding
14% of 19447 decks +12% synergy
Jeska's Will
14% of 13810 decks +5% synergy
Rishkar's Expertise
14% of 1457 decks +9% synergy
Irenicus's Vile Duplication
14% of 6424 decks +12% synergy
Victimize
13% of 19447 decks +8% synergy
Eerie Ultimatum
12% of 718 decks +11% synergy
Diabolic Tutor
12% of 19447 decks +9% synergy
Dreadbore
12% of 14062 decks +11% synergy
Disrupt Decorum
12% of 14063 decks +10% synergy
Merciless Eviction
11% of 5507 decks +10% synergy
Mandate of Abaddon
11% of 14380 decks +10% synergy
Shifting Grift
11% of 137 decks +10% synergy
Windfall
11% of 6941 decks +4% synergy
Armageddon
10% of 5508 decks +10% synergy
Kindred Dominance
10% of 19447 decks +8% synergy
Exsanguinate
10% of 19447 decks +7% synergy
Austere Command
10% of 5508 decks +4% synergy
Decimate
10% of 1115 decks +8% synergy
Villainous Wealth
10% of 269 decks +9% synergy
Unburial Rites
9% of 5507 decks +9% synergy
Ponder
9% of 6941 decks +2% synergy
Bala Ged Recovery
8% of 1410 decks +3% synergy
The Nipton Lottery
8% of 368 decks +7% synergy
Torment of Hailfire
8% of 19447 decks +5% synergy
Supreme Verdict
8% of 477 decks +5% synergy
Tempt with Discovery
8% of 1457 decks +6% synergy
Fractured Identity
8% of 477 decks +7% synergy
Utility Artifacts (30)
Lightning Greaves
44% of 19448 decks +18% synergy
Swiftfoot Boots
36% of 19448 decks +8% synergy
Whip of Erebos
22% of 19447 decks +21% synergy
Wayfarer's Bauble
20% of 19448 decks +9% synergy
Herald's Horn
18% of 19448 decks +11% synergy
Urza's Incubator
14% of 19448 decks +11% synergy
The Key to the Vault
12% of 89 decks +8% synergy
Bontu's Monument
12% of 19448 decks +10% synergy
The Skullspore Nexus
12% of 241 decks +8% synergy
Panharmonicon
12% of 19448 decks +8% synergy
Fist of Suns
12% of 147 decks +11% synergy
Bolas's Citadel
11% of 19376 decks +6% synergy
The Great Henge
11% of 1440 decks +6% synergy
Mithril Coat
10% of 8288 decks +3% synergy
Jet Medallion
10% of 19448 decks +7% synergy
Helm of the Host
8% of 19448 decks +5% synergy
Whispersilk Cloak
8% of 19448 decks +4% synergy
Doors of Durin
8% of 420 decks +7% synergy
Conjurer's Closet
8% of 19448 decks +6% synergy
Strionic Resonator
8% of 19448 decks +4% synergy
Quicksilver Amulet
8% of 19448 decks +7% synergy
Bloodthirsty Blade
7% of 19303 decks +7% synergy
Lavaspur Boots
7% of 241 decks +1% synergy
Elbrus, the Binding Blade
7% of 19447 decks +6% synergy
Crawlspace
6% of 19448 decks +5% synergy
The One Ring
6% of 9900 decks -3% synergy
Cryptolith Fragment
6% of 19448 decks +5% synergy
Expedition Map
6% of 19448 decks +2% synergy
Skullclamp
5% of 19448 decks -8% synergy
Sword of Hearth and Home
5% of 18773 decks +3% synergy
Enchantments (50)
Rhythm of the Wild
36% of 1113 decks +31% synergy
Smothering Tithe
36% of 5478 decks +24% synergy
Liliana's Contract
32% of 19447 decks +32% synergy
Reflections of Littjara
31% of 6821 decks +28% synergy
Phyrexian Arena
27% of 19447 decks +20% synergy
Leyline of the Guildpact
27% of 11 decks +25% synergy
Rhystic Study
26% of 6941 decks +12% synergy
Warstorm Surge
25% of 14063 decks +22% synergy
Rakdos Joins Up
21% of 238 decks +19% synergy
Mirari's Wake
21% of 737 decks +17% synergy
Garruk's Uprising
19% of 1411 decks +12% synergy
Propaganda
18% of 6941 decks +13% synergy
Virtue of Knowledge
18% of 2507 decks +16% synergy
Animate Dead
18% of 19447 decks +13% synergy
Oath of Teferi
17% of 477 decks +16% synergy
Molten Echoes
15% of 13886 decks +14% synergy
Kindred Discovery
15% of 6941 decks +12% synergy
Black Market Connections
14% of 16092 decks +9% synergy
Guardian Project
14% of 1455 decks +10% synergy
Rising of the Day
14% of 6120 decks +10% synergy
Heartless Summoning
14% of 19447 decks +13% synergy
Ghostly Prison
14% of 5508 decks +8% synergy
Land Tax
14% of 5508 decks +11% synergy
Black Market
11% of 19447 decks +8% synergy
Mystic Remora
10% of 6941 decks +1% synergy
Deathreap Ritual
10% of 1457 decks +9% synergy
Sylvan Library
10% of 1457 decks +4% synergy
Dragon Tempest
10% of 14063 decks +8% synergy
Beastmaster Ascension
10% of 1457 decks +7% synergy
Curse of Opulence
10% of 14063 decks +8% synergy
Sneak Attack
10% of 14063 decks +8% synergy
Temur Ascendancy
9% of 171 decks +8% synergy
The Apprentice's Folly
9% of 1615 decks +9% synergy
Aura Shards
9% of 737 decks +7% synergy
Exquisite Blood
9% of 19447 decks +7% synergy
Phyrexian Reclamation
9% of 19447 decks +7% synergy
Ghoulish Impetus
9% of 6649 decks +8% synergy
Captive Audience
9% of 14042 decks +8% synergy
Reconnaissance
9% of 5508 decks +8% synergy
Curse of Verbosity
8% of 6941 decks +8% synergy
Exchange of Words
8% of 5108 decks +8% synergy
Up the Beanstalk
8% of 381 decks +5% synergy
Shiny Impetus
8% of 13886 decks +6% synergy
Descent into Avernus
8% of 12329 decks +6% synergy
Rite of the Raging Storm
7% of 14063 decks +7% synergy
High Noon
7% of 55 decks +6% synergy
Wound Reflection
7% of 19447 decks +6% synergy
Trouble in Pairs
7% of 632 decks +1% synergy
Blind Obedience
7% of 5508 decks +4% synergy
Theater of Horrors
7% of 14039 decks +6% synergy
Planeswalkers (5)
Dihada, Binder of Wills
13% of 3006 decks +12% synergy
Ob Nixilis, the Adversary
12% of 12835 decks +11% synergy
Dakkon, Shadow Slayer
7% of 400 decks +7% synergy
Aminatou, the Fateshifter
5% of 477 decks +5% synergy
Teferi, Who Slows the Sunset
5% of 387 decks +4% synergy
Utility Lands (30)
Bojuka Bog
39% of 19447 decks +23% synergy
Reliquary Tower
34% of 19448 decks +6% synergy
Urborg, Tomb of Yawgmoth
30% of 19448 decks +19% synergy
Rogue's Passage
23% of 19448 decks +4% synergy
Cabal Coffers
21% of 19447 decks +15% synergy
Vault of the Archangel
17% of 5507 decks +15% synergy
Kessig Wolf Run
17% of 1115 decks +14% synergy
Otawara, Soaring City
14% of 6682 decks +6% synergy
Temple of the False God
14% of 19448 decks +4% synergy
Minas Tirith
14% of 1949 decks +8% synergy
Takenuma, Abandoned Mire
13% of 17862 decks +7% synergy
Ancient Tomb
11% of 19448 decks +0% synergy
Boseiju, Who Endures
11% of 1298 decks +1% synergy
Slayers' Stronghold
10% of 4291 decks +9% synergy
Command Beacon
10% of 19448 decks +5% synergy
Mosswort Bridge
9% of 1457 decks +4% synergy
Westvale Abbey
9% of 19447 decks +8% synergy
Alchemist's Refuge
8% of 269 decks +7% synergy
Maze of Ith
8% of 19448 decks +5% synergy
Shizo, Death's Storehouse
8% of 19447 decks +6% synergy
Castle Locthwain
8% of 19285 decks +5% synergy
Nykthos, Shrine to Nyx
7% of 19448 decks +2% synergy
Eiganjo, Seat of the Empire
7% of 4858 decks +2% synergy
Cabal Stronghold
7% of 19447 decks +5% synergy
Mystic Sanctuary
7% of 6894 decks +0% synergy
Spinerock Knoll
6% of 14063 decks +4% synergy
Mortuary Mire
6% of 19447 decks +3% synergy
Barren Moor
6% of 19447 decks +4% synergy
Gavony Township
5% of 737 decks +3% synergy
Homeward Path
5% of 19448 decks +3% synergy
Mana Artifacts (33)
Sol Ring
90% of 19448 decks +5% synergy
Arcane Signet
80% of 19286 decks +10% synergy
Talisman of Dominance
63% of 6941 decks +56% synergy
Talisman of Creativity
62% of 4573 decks +56% synergy
Rakdos Signet
56% of 14062 decks +49% synergy
Talisman of Indulgence
51% of 14062 decks +46% synergy
Orzhov Signet
50% of 5507 decks +43% synergy
Dimir Signet
50% of 6941 decks +42% synergy
Boros Signet
48% of 4291 decks +43% synergy
Talisman of Conviction
38% of 4276 decks +34% synergy
Talisman of Hierarchy
38% of 5456 decks +33% synergy
Relic of Sauron
37% of 2244 decks +35% synergy
Azorius Signet
36% of 477 decks +30% synergy
Izzet Signet
29% of 4578 decks +22% synergy
Fellwar Stone
29% of 19448 decks +8% synergy
Commander's Sphere
24% of 19448 decks +7% synergy
Chromatic Lantern
22% of 19448 decks +12% synergy
Mind Stone
20% of 19448 decks +1% synergy
Thought Vessel
19% of 19448 decks +3% synergy
Gruul Signet
16% of 1115 decks +13% synergy
Golgari Signet
13% of 1457 decks +10% synergy
Mana Crypt
10% of 19448 decks -2% synergy
Selesnya Signet
9% of 737 decks +7% synergy
Talisman of Resilience
9% of 1448 decks +7% synergy
Charcoal Diamond
8% of 19447 decks +5% synergy
Thran Dynamo
8% of 19448 decks +4% synergy
Timeless Lotus
8% of 86 decks +7% synergy
Talisman of Progress
7% of 477 decks +3% synergy
Gilded Lotus
7% of 19448 decks +3% synergy
Jeweled Lotus
7% of 19023 decks -1% synergy
Worn Powerstone
6% of 19448 decks +4% synergy
Simic Signet
6% of 269 decks +2% synergy
Decanter of Endless Water
6% of 16093 decks -0% synergy
Lands (50)
Command Tower
82% of 19448 decks +9% synergy
Crumbling Necropolis
65% of 4578 decks +62% synergy
Xander's Lounge
61% of 4488 decks +57% synergy
Sunken Hollow
54% of 6941 decks +45% synergy
Godless Shrine
53% of 5507 decks +44% synergy
Dragonskull Summit
53% of 14062 decks +47% synergy
Sacred Foundry
53% of 4291 decks +45% synergy
Blood Crypt
52% of 14062 decks +43% synergy
Savai Triome
51% of 4236 decks +48% synergy
Watery Grave
50% of 6941 decks +40% synergy
Arcane Sanctum
50% of 477 decks +47% synergy
Steam Vents
50% of 4578 decks +41% synergy
Ziatora's Proving Ground
49% of 945 decks +45% synergy
Stomping Ground
48% of 1115 decks +39% synergy
Nomad Outpost
48% of 4290 decks +44% synergy
Jetmir's Garden
47% of 557 decks +43% synergy
Temple Garden
47% of 737 decks +38% synergy
Overgrown Tomb
46% of 1457 decks +37% synergy
Training Center
44% of 4554 decks +38% synergy
Luxury Suite
44% of 14062 decks +38% synergy
Indatha Triome
44% of 717 decks +40% synergy
Isolated Chapel
43% of 5507 decks +38% synergy
Morphic Pool
43% of 6941 decks +37% synergy
Smoldering Marsh
43% of 14062 decks +36% synergy
Drowned Catacomb
42% of 6941 decks +36% synergy
Vault of Champions
42% of 5311 decks +36% synergy
Spectator Seating
41% of 4169 decks +36% synergy
Clifftop Retreat
41% of 4291 decks +36% synergy
The World Tree
41% of 133 decks +38% synergy
Caves of Koilos
39% of 5507 decks +33% synergy
Exotic Orchard
37% of 19448 decks +3% synergy
Savage Lands
37% of 1115 decks +34% synergy
Shipwreck Marsh
35% of 6777 decks +30% synergy
Battlefield Forge
35% of 4291 decks +30% synergy
Azorius Chancery
33% of 477 decks +30% synergy
Undergrowth Stadium
32% of 1402 decks +26% synergy
Breeding Pool
32% of 269 decks +23% synergy
Jungle Shrine
32% of 660 decks +28% synergy
Sulfur Falls
32% of 4578 decks +26% synergy
Cinder Glade
31% of 1115 decks +22% synergy
Foreboding Ruins
31% of 14062 decks +27% synergy
Haunted Ridge
31% of 13507 decks +27% synergy
Zagoth Triome
30% of 260 decks +26% synergy
Ketria Triome
29% of 162 decks +25% synergy
Spire Garden
29% of 1115 decks +23% synergy
Rakdos Carnarium
28% of 14062 decks +25% synergy
Rootbound Crag
27% of 1115 decks +22% synergy
Hallowed Fountain
27% of 477 decks +17% synergy
Tranquil Cove
26% of 477 decks +25% synergy
Sulfurous Springs
26% of 14062 decks +22% synergy