The Infamous Cruelclaw (Commander) - Expensive Optimized

The Infamous Cruelclaw
Rank #203
30decks
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
Improvisation Capstone
50%inclusion2 decks4 decks
47%synergy
High Synergy Cards
Access Tunnel
77%inclusion23 decks30 decks
73%synergy
Ulamog, the Defiler
73%inclusion22 decks30 decks
72%synergy
Scroll Rack
70%inclusion21 decks30 decks
69%synergy
Ulamog, the Ceaseless Hunger
70%inclusion21 decks30 decks
68%synergy
Portal to Phyrexia
67%inclusion20 decks30 decks
65%synergy
Ulamog, the Infinite Gyre
63%inclusion19 decks30 decks
62%synergy
Shizo, Death's Storehouse
67%inclusion20 decks30 decks
61%synergy
Blightsteel Colossus
60%inclusion18 decks30 decks
59%synergy
Arena of Glory
67%inclusion20 decks30 decks
58%synergy
Sensei's Divining Top
63%inclusion19 decks30 decks
58%synergy
Top Cards
Lightning Greaves
77%inclusion23 decks30 decks
42%synergy
Deflecting Swat
67%inclusion20 decks30 decks
46%synergy
Reanimate
60%inclusion18 decks30 decks
37%synergy
Wheel of Fortune
60%inclusion18 decks30 decks
54%synergy
Breach the Multiverse
57%inclusion17 decks30 decks
53%synergy
Brotherhood Regalia
57%inclusion17 decks30 decks
55%synergy
Dark Ritual
57%inclusion17 decks30 decks
14%synergy
Kozilek, Butcher of Truth
57%inclusion17 decks30 decks
55%synergy
Void Winnower
50%inclusion15 decks30 decks
49%synergy
Sheoldred, Whispering One
50%inclusion15 decks30 decks
47%synergy
Game Changers
Vampiric Tutor
87%inclusion26 decks30 decks
73%synergy
Imperial Seal
70%inclusion21 decks30 decks
65%synergy
Demonic Tutor
70%inclusion21 decks30 decks
52%synergy
Ancient Tomb
70%inclusion21 decks30 decks
61%synergy
Jeska's Will
63%inclusion19 decks30 decks
40%synergy
The One Ring
50%inclusion15 decks30 decks
43%synergy
Bolas's Citadel
50%inclusion15 decks30 decks
40%synergy
Chrome Mox
43%inclusion13 decks30 decks
38%synergy
Mana Vault
30%inclusion9 decks30 decks
25%synergy
Mox Diamond
30%inclusion9 decks30 decks
26%synergy
Creatures
Kozilek, the Great Distortion
50%inclusion15 decks30 decks
49%synergy
Hexing Squelcher
50%inclusion4 decks8 decks
37%synergy
Anger
47%inclusion14 decks30 decks
34%synergy
Valgavoth, Terror Eater
47%inclusion14 decks30 decks
44%synergy
Emrakul, the World Anew
43%inclusion13 decks30 decks
42%synergy
Archon of Cruelty
43%inclusion13 decks30 decks
40%synergy
Artisan of Kozilek
43%inclusion13 decks30 decks
41%synergy
Emrakul, the Promised End
43%inclusion13 decks30 decks
42%synergy
Etali, Primal Storm
37%inclusion11 decks30 decks
29%synergy
Wild-Magic Sorcerer
37%inclusion11 decks30 decks
32%synergy
Ancient Copper Dragon
37%inclusion11 decks30 decks
33%synergy
Kaervek the Merciless
37%inclusion11 decks30 decks
26%synergy
Ragavan, Nimble Pilferer
33%inclusion10 decks30 decks
23%synergy
Terror of the Peaks
33%inclusion10 decks30 decks
29%synergy
It That Betrays
33%inclusion10 decks30 decks
32%synergy
Karlach, Fury of Avernus
30%inclusion9 decks30 decks
27%synergy
Vilis, Broker of Blood
30%inclusion9 decks30 decks
26%synergy
Shard of the Nightbringer
30%inclusion9 decks30 decks
29%synergy
Keeper of Secrets
27%inclusion8 decks30 decks
25%synergy
Combustible Gearhulk
27%inclusion8 decks30 decks
20%synergy
Simian Spirit Guide
27%inclusion8 decks30 decks
21%synergy
Orcish Bowmasters
27%inclusion8 decks30 decks
16%synergy
Hoarding Broodlord
23%inclusion7 decks30 decks
19%synergy
Flaming Tyrannosaurus
23%inclusion7 decks30 decks
22%synergy
Lizard Blades
23%inclusion7 decks30 decks
20%synergy
Squee, Goblin Nabob
23%inclusion7 decks30 decks
20%synergy
Rakdos, Patron of Chaos
23%inclusion7 decks30 decks
18%synergy
Sheoldred, the Apocalypse
23%inclusion7 decks30 decks
16%synergy
Prosper, Tome-Bound
20%inclusion6 decks30 decks
13%synergy
Varragoth, Bloodsky Sire
20%inclusion6 decks30 decks
17%synergy
Shadowgrange Archfiend
20%inclusion6 decks30 decks
17%synergy
Nalfeshnee
17%inclusion5 decks30 decks
14%synergy
Sire of Seven Deaths
17%inclusion5 decks30 decks
16%synergy
Urabrask the Hidden
17%inclusion5 decks30 decks
14%synergy
Moraug, Fury of Akoum
17%inclusion5 decks30 decks
15%synergy
Ancient Brass Dragon
17%inclusion5 decks30 decks
15%synergy
Cityscape Leveler
17%inclusion5 decks30 decks
16%synergy
Opposition Agent
17%inclusion5 decks30 decks
12%synergy
Summon: Bahamut
16%inclusion4 decks25 decks
15%synergy
Maha, Its Feathers Night
13%inclusion4 decks30 decks
12%synergy
Doomsday Excruciator
13%inclusion4 decks30 decks
13%synergy
The Lord of Pain
13%inclusion4 decks30 decks
4%synergy
Dauthi Voidwalker
13%inclusion4 decks30 decks
6%synergy
Pinnacle Monk
13%inclusion4 decks30 decks
6%synergy
Impulsivity
13%inclusion1 decks8 decks
12%synergy
Archfiend of Despair
10%inclusion3 decks30 decks
7%synergy
Ancient Cellarspawn
10%inclusion3 decks30 decks
8%synergy
Bloodthirster
10%inclusion3 decks30 decks
8%synergy
Professional Face-Breaker
10%inclusion3 decks30 decks
-5%synergy
Kozilek, the Broken Reality
10%inclusion3 decks30 decks
10%synergy
Instants
Deadly Rollick
47%inclusion14 decks30 decks
25%synergy
Blood for the Blood God!
33%inclusion10 decks30 decks
26%synergy
Redirect Lightning
27%inclusion4 decks15 decks
17%synergy
Pyroblast
27%inclusion8 decks30 decks
18%synergy
Entomb
23%inclusion7 decks30 decks
16%synergy
Red Elemental Blast
23%inclusion7 decks30 decks
15%synergy
Chaos Warp
23%inclusion7 decks30 decks
-24%synergy
Saw in Half
20%inclusion6 decks30 decks
8%synergy
Delayed Blast Fireball
17%inclusion5 decks30 decks
12%synergy
Rakdos Charm
17%inclusion5 decks30 decks
-27%synergy
Tainted Pact
13%inclusion4 decks30 decks
11%synergy
Tibalt's Trickery
13%inclusion4 decks30 decks
0%synergy
Untimely Malfunction
13%inclusion4 decks30 decks
-5%synergy
Burnt Offering
13%inclusion4 decks30 decks
8%synergy
Lightning Bolt
10%inclusion3 decks30 decks
-8%synergy
Cabal Ritual
10%inclusion3 decks30 decks
2%synergy
Terminate
10%inclusion3 decks30 decks
-30%synergy
Thrill of Possibility
10%inclusion3 decks30 decks
-8%synergy
Culling the Weak
10%inclusion3 decks30 decks
4%synergy
Unexpected Windfall
6.7%inclusion2 decks30 decks
-7%synergy
Savage Beating
6.7%inclusion2 decks30 decks
5%synergy
Fell the Profane
6.7%inclusion2 decks30 decks
-6%synergy
Big Score
6.7%inclusion2 decks30 decks
-14%synergy
Malakir Rebirth
6.7%inclusion2 decks30 decks
-9%synergy
Bedevil
6.7%inclusion2 decks30 decks
-28%synergy
Abrade
6.7%inclusion2 decks30 decks
-15%synergy
Seething Song
6.7%inclusion2 decks30 decks
-5%synergy
Sorceries
Rise of the Eldrazi
47%inclusion14 decks30 decks
45%synergy
Rise of the Dark Realms
43%inclusion13 decks30 decks
39%synergy
Call Forth the Tempest
37%inclusion11 decks30 decks
34%synergy
In Garruk's Wake
37%inclusion11 decks30 decks
33%synergy
Worldfire
33%inclusion10 decks30 decks
32%synergy
Hit the Mother Lode
33%inclusion10 decks30 decks
30%synergy
Fevered Suspicion
30%inclusion9 decks30 decks
26%synergy
Rite of Flame
27%inclusion8 decks30 decks
22%synergy
Seize the Day
23%inclusion7 decks30 decks
22%synergy
Gamble
23%inclusion7 decks30 decks
14%synergy
Insatiable Avarice
23%inclusion7 decks30 decks
19%synergy
Scheming Symmetry
20%inclusion6 decks30 decks
18%synergy
Cruel Tutor
20%inclusion6 decks30 decks
19%synergy
Overpowering Attack
17%inclusion5 decks30 decks
15%synergy
Blasphemous Act
13%inclusion4 decks30 decks
-37%synergy
Vandalblast
13%inclusion4 decks30 decks
-17%synergy
Toxic Deluge
13%inclusion4 decks30 decks
-4%synergy
Aberrant Return
13%inclusion1 decks8 decks
12%synergy
World at War
10%inclusion3 decks30 decks
9%synergy
Peer into the Abyss
10%inclusion3 decks30 decks
6%synergy
Full Throttle
10%inclusion3 decks30 decks
8%synergy
Fury of the Horde
10%inclusion3 decks30 decks
9%synergy
Relentless Assault
10%inclusion3 decks30 decks
8%synergy
Incarnation Technique
10%inclusion3 decks30 decks
9%synergy
Wheel of Misfortune
10%inclusion3 decks30 decks
5%synergy
Creative Technique
10%inclusion3 decks30 decks
9%synergy
Reforge the Soul
10%inclusion3 decks30 decks
8%synergy
Faithless Looting
6.7%inclusion2 decks30 decks
-21%synergy
Decree of Pain
6.7%inclusion2 decks30 decks
2%synergy
Damnation
6.7%inclusion2 decks30 decks
-0%synergy
Exhume
6.7%inclusion2 decks30 decks
6%synergy
Plague Wind
6.7%inclusion2 decks30 decks
6%synergy
Edgar's Awakening
6.7%inclusion2 decks30 decks
6%synergy
Dance with Calamity
6.7%inclusion2 decks30 decks
6%synergy
Terminal Agony
6.7%inclusion2 decks30 decks
3%synergy
Strike It Rich
6.7%inclusion2 decks30 decks
3%synergy
Beseech the Mirror
6.7%inclusion2 decks30 decks
3%synergy
Ruination
6.7%inclusion2 decks30 decks
6%synergy
Doomsday
6.7%inclusion2 decks30 decks
6%synergy
Shatterskull Smashing
6.7%inclusion2 decks30 decks
3%synergy
Utility Artifacts
Swiftfoot Boots
37%inclusion11 decks30 decks
5%synergy
Silver Shroud Costume
37%inclusion11 decks30 decks
35%synergy
Whispersilk Cloak
33%inclusion10 decks30 decks
28%synergy
Monument to Endurance
23%inclusion7 decks30 decks
20%synergy
Skateboard
20%inclusion1 decks5 decks
20%synergy
Chimil, the Inner Sun
20%inclusion6 decks30 decks
18%synergy
Hard-Won Jitte
20%inclusion1 decks5 decks
20%synergy
Trailblazer's Boots
17%inclusion5 decks30 decks
15%synergy
Embercleave
17%inclusion5 decks30 decks
15%synergy
Mithril Coat
13%inclusion4 decks30 decks
9%synergy
Lavaspur Boots
13%inclusion4 decks30 decks
12%synergy
Helm of the Host
10%inclusion3 decks30 decks
5%synergy
Darksteel Monolith
10%inclusion3 decks30 decks
10%synergy
Planetarium of Wan Shi Tong
9.1%inclusion1 decks11 decks
9%synergy
Grinding Station
6.7%inclusion2 decks30 decks
5%synergy
Defense Grid
6.7%inclusion2 decks30 decks
5%synergy
The Reaver Cleaver
6.7%inclusion2 decks30 decks
1%synergy
Wishclaw Talisman
6.7%inclusion2 decks30 decks
1%synergy
Memory Jar
6.7%inclusion2 decks30 decks
7%synergy
Brainstone
6.7%inclusion2 decks30 decks
6%synergy
Sword of Feast and Famine
6.7%inclusion2 decks30 decks
6%synergy
Aetherflux Reservoir
6.7%inclusion2 decks30 decks
3%synergy
Cursed Totem
6.7%inclusion2 decks30 decks
6%synergy
Palantír of Orthanc
6.7%inclusion2 decks30 decks
5%synergy
Akroma's Memorial
6.7%inclusion2 decks30 decks
6%synergy
Key to the City
6.7%inclusion2 decks30 decks
4%synergy
Strionic Resonator
6.7%inclusion2 decks30 decks
5%synergy
Wondrous Crucible
6.7%inclusion2 decks30 decks
6%synergy
Enchantments
Animate Dead
40%inclusion12 decks30 decks
31%synergy
Necromancy
30%inclusion9 decks30 decks
27%synergy
Virtue of Persistence
27%inclusion8 decks30 decks
25%synergy
Eldrazi Conscription
23%inclusion7 decks30 decks
23%synergy
Passionate Archaeologist
23%inclusion7 decks30 decks
20%synergy
Aggravated Assault
20%inclusion6 decks30 decks
17%synergy
Underworld Breach
17%inclusion5 decks30 decks
10%synergy
Phyrexian Arena
17%inclusion5 decks30 decks
-7%synergy
The Cloning of Shredder
14%inclusion1 decks7 decks
14%synergy
Super State
14%inclusion3 decks22 decks
12%synergy
Blood Moon
13%inclusion4 decks30 decks
11%synergy
Mass Hysteria
13%inclusion4 decks30 decks
12%synergy
Haunted Crossroads
13%inclusion4 decks30 decks
13%synergy
Triple Triad
12%inclusion3 decks25 decks
11%synergy
Havoc Festival
10%inclusion3 decks30 decks
7%synergy
Sneak Attack
10%inclusion3 decks30 decks
7%synergy
Rising of the Day
10%inclusion3 decks30 decks
5%synergy
Black Market Connections
10%inclusion3 decks30 decks
-8%synergy
Baneful Omen
10%inclusion3 decks30 decks
9%synergy
Kaya's Ghostform
6.7%inclusion2 decks30 decks
1%synergy
Dance of the Dead
6.7%inclusion2 decks30 decks
5%synergy
Ripples of Undeath
6.7%inclusion2 decks30 decks
4%synergy
Warstorm Surge
6.7%inclusion2 decks30 decks
3%synergy
Possibility Storm
6.7%inclusion2 decks30 decks
6%synergy
Necropotence
6.7%inclusion2 decks30 decks
1%synergy
Planeswalkers
Ugin, the Spirit Dragon
17%inclusion5 decks30 decks
16%synergy
Ugin, Eye of the Storms
14%inclusion4 decks29 decks
14%synergy
Vraska, Betrayal's Sting
6.7%inclusion2 decks30 decks
6%synergy
Liliana Vess
6.7%inclusion2 decks30 decks
6%synergy
Utility Lands
Rogue's Passage
73%inclusion22 decks30 decks
54%synergy
Urborg, Tomb of Yawgmoth
67%inclusion20 decks30 decks
48%synergy
The Black Gate
53%inclusion16 decks30 decks
50%synergy
Minas Morgul, Dark Fortress
43%inclusion13 decks30 decks
42%synergy
Cabal Coffers
37%inclusion11 decks30 decks
27%synergy
Volrath's Stronghold
33%inclusion10 decks30 decks
32%synergy
Bojuka Bog
27%inclusion8 decks30 decks
-9%synergy
Urza's Saga
27%inclusion8 decks30 decks
21%synergy
Takenuma, Abandoned Mire
23%inclusion7 decks30 decks
15%synergy
Hall of the Bandit Lord
17%inclusion5 decks30 decks
15%synergy
Mortuary Mire
17%inclusion5 decks30 decks
11%synergy
Reliquary Tower
17%inclusion5 decks30 decks
-1%synergy
Blinkmoth Nexus
13%inclusion4 decks30 decks
13%synergy
Command Beacon
13%inclusion4 decks30 decks
7%synergy
Witch's Cottage
13%inclusion4 decks30 decks
11%synergy
Phyrexian Tower
13%inclusion4 decks30 decks
3%synergy
Maze of Ith
13%inclusion4 decks30 decks
11%synergy
Shivan Gorge
13%inclusion4 decks30 decks
4%synergy
Wasteland
10%inclusion3 decks30 decks
9%synergy
Sunscorched Desert
10%inclusion3 decks30 decks
8%synergy
Sokenzan, Crucible of Defiance
10%inclusion3 decks30 decks
6%synergy
Homeward Path
10%inclusion3 decks30 decks
9%synergy
Dust Bowl
10%inclusion3 decks30 decks
10%synergy
Shinka, the Bloodsoaked Keep
10%inclusion3 decks30 decks
8%synergy
Vesuva
10%inclusion3 decks30 decks
10%synergy
Castle Locthwain
10%inclusion3 decks30 decks
4%synergy
Ramunap Ruins
10%inclusion3 decks30 decks
8%synergy
Spawning Bed
6.7%inclusion2 decks30 decks
7%synergy
Mystifying Maze
6.7%inclusion2 decks30 decks
6%synergy
Mishra's Factory
6.7%inclusion2 decks30 decks
6%synergy
Crystal Vein
6.7%inclusion2 decks30 decks
6%synergy
The Tabernacle at Pendrell Vale
6.7%inclusion2 decks30 decks
7%synergy
Piranha Marsh
6.7%inclusion2 decks30 decks
6%synergy
Kher Keep
6.7%inclusion2 decks30 decks
4%synergy
Springjack Pasture
6.7%inclusion2 decks30 decks
7%synergy
Labyrinth of Skophos
6.7%inclusion2 decks30 decks
6%synergy
Dwarven Ruins
6.7%inclusion2 decks30 decks
6%synergy
Ominous Cemetery
6.7%inclusion2 decks30 decks
7%synergy
Spawning Pool
6.7%inclusion2 decks30 decks
6%synergy
Westvale Abbey
6.7%inclusion2 decks30 decks
5%synergy
Vault of Whispers
6.7%inclusion2 decks30 decks
0%synergy
Molten Slagheap
6.7%inclusion2 decks30 decks
5%synergy
Treasure Vault
6.7%inclusion2 decks30 decks
1%synergy
Restless Vents
6.7%inclusion2 decks30 decks
2%synergy
Geier Reach Sanitarium
6.7%inclusion2 decks30 decks
1%synergy
Fountainport
6.7%inclusion2 decks30 decks
5%synergy
Thespian's Stage
6.7%inclusion2 decks30 decks
6%synergy
Strip Mine
6.7%inclusion2 decks30 decks
5%synergy
Island of Wak-Wak
6.7%inclusion2 decks30 decks
7%synergy
Sandstorm Verge
6.7%inclusion2 decks30 decks
6%synergy
Mana Artifacts
Sol Ring
87%inclusion26 decks30 decks
1%synergy
Arcane Signet
67%inclusion20 decks30 decks
-15%synergy
Lotus Petal
53%inclusion16 decks30 decks
46%synergy
Talisman of Indulgence
47%inclusion14 decks30 decks
-9%synergy
Rakdos Signet
33%inclusion10 decks30 decks
-24%synergy
Fellwar Stone
23%inclusion7 decks30 decks
-10%synergy
Lion's Eye Diamond
20%inclusion6 decks30 decks
17%synergy
Mox Opal
20%inclusion6 decks30 decks
16%synergy
The Soul Stone
18%inclusion3 decks17 decks
13%synergy
Mox Amber
17%inclusion5 decks30 decks
12%synergy
Grim Monolith
13%inclusion4 decks30 decks
11%synergy
Chromatic Orrery
13%inclusion4 decks30 decks
13%synergy
Mind Stone
10%inclusion3 decks30 decks
-18%synergy
Thran Dynamo
10%inclusion3 decks30 decks
6%synergy
Cursed Mirror
6.7%inclusion2 decks30 decks
-5%synergy
Thought Vessel
6.7%inclusion2 decks30 decks
-11%synergy
Lands
Blood Crypt
97%inclusion29 decks30 decks
50%synergy
Mountain
93%inclusion28 decks30 decks
-4%synergy
Swamp
93%inclusion28 decks30 decks
-4%synergy
Luxury Suite
90%inclusion27 decks30 decks
52%synergy
Command Tower
90%inclusion27 decks30 decks
4%synergy
Badlands
83%inclusion25 decks30 decks
70%synergy
Bloodstained Mire
80%inclusion24 decks30 decks
47%synergy
Sulfurous Springs
73%inclusion22 decks30 decks
26%synergy
Blightstep Pathway
57%inclusion17 decks30 decks
34%synergy
Raucous Theater
57%inclusion17 decks30 decks
35%synergy
Gemstone Caverns
53%inclusion16 decks30 decks
49%synergy
Mount Doom
50%inclusion15 decks30 decks
34%synergy
Blazemire Verge
47%inclusion14 decks30 decks
16%synergy
Dragonskull Summit
43%inclusion13 decks30 decks
-20%synergy
Haunted Ridge
43%inclusion13 decks30 decks
7%synergy
Verdant Catacombs
40%inclusion12 decks30 decks
33%synergy
Arid Mesa
40%inclusion12 decks30 decks
32%synergy
Polluted Delta
37%inclusion11 decks30 decks
29%synergy
Marsh Flats
37%inclusion11 decks30 decks
29%synergy
City of Brass
33%inclusion10 decks30 decks
27%synergy
Wooded Foothills
33%inclusion10 decks30 decks
26%synergy
Scalding Tarn
33%inclusion10 decks30 decks
26%synergy
Mana Confluence
30%inclusion9 decks30 decks
24%synergy
Cavern of Souls
27%inclusion8 decks30 decks
22%synergy
Exotic Orchard
27%inclusion8 decks30 decks
-4%synergy
Tainted Peak
27%inclusion8 decks30 decks
-16%synergy
Blackcleave Cliffs
23%inclusion7 decks30 decks
3%synergy
Urza's Cave
20%inclusion6 decks30 decks
19%synergy
Graven Cairns
20%inclusion6 decks30 decks
-11%synergy
Jagged Barrens
17%inclusion5 decks30 decks
9%synergy
Talon Gates of Madara
17%inclusion5 decks30 decks
16%synergy
Smoldering Marsh
17%inclusion5 decks30 decks
-47%synergy
Foreboding Ruins
17%inclusion5 decks30 decks
-29%synergy
Plaza of Heroes
13%inclusion4 decks30 decks
12%synergy
Pinnacle Monk
13%inclusion4 decks30 decks
6%synergy
Shadowblood Ridge
13%inclusion4 decks30 decks
-22%synergy
Snow-Covered Swamp
10%inclusion3 decks30 decks
7%synergy
Horizon of Progress
10%inclusion3 decks30 decks
9%synergy
Reflecting Pool
10%inclusion3 decks30 decks
7%synergy
Snow-Covered Mountain
10%inclusion3 decks30 decks
7%synergy
Temple of Malice
10%inclusion3 decks30 decks
-23%synergy
Starting Town
8.0%inclusion2 decks25 decks
6%synergy
Fabled Passage
6.7%inclusion2 decks30 decks
-2%synergy
Fell the Profane
6.7%inclusion2 decks30 decks
-6%synergy
Rakdos Carnarium
6.7%inclusion2 decks30 decks
-25%synergy
Riveteers Overlook
6.7%inclusion2 decks30 decks
5%synergy
Maestros Theater
6.7%inclusion2 decks30 decks
4%synergy
Malakir Rebirth
6.7%inclusion2 decks30 decks
-9%synergy
Ancient Ziggurat
6.7%inclusion2 decks30 decks
6%synergy
Myriad Landscape
6.7%inclusion2 decks30 decks
-11%synergy