Feaster of Fools (Card)
Feaster of Fools
In 1145 decks
0% of 2927667 decks
Oct 30, 2023
Singleton Shmingleton - Fleshbag Marauder
Spooky, scary...Fleshbags? Jesse takes us on a mono-black trip to the graveyard and back with some Zombie friends.
Top Commanders
Endrek Sahr, Master Breeder
9.28% of 1595 decks
148 decks
Raphael, Fiendish Savior
1.33% of 4435 decks
59 decks
Prossh, Skyraider of Kher
0.75% of 5589 decks
42 decks
Be'lakor, the Dark Master
0.31% of 11949 decks
37 decks
Ghoulcaller Gisa
1.00% of 3201 decks
32 decks
Reyhan, Last of the Abzan // Tana, the Bloodsower
10.37% of 299 decks
31 decks
Kresh the Bloodbraided
1.01% of 2969 decks
30 decks
Felisa, Fang of Silverquill
1.34% of 1788 decks
24 decks
Korvold, Fae-Cursed King
0.15% of 16305 decks
24 decks
Athreos, God of Passage
0.31% of 6702 decks
21 decks
Taborax, Hope's Demise
1.36% of 1544 decks
21 decks
Slimefoot and Squee
0.23% of 8744 decks
20 decks
Kaalia of the Vast
0.08% of 25107 decks
19 decks
Jerren, Corrupted Bishop
2.58% of 736 decks
19 decks
Ria Ivor, Bane of Bladehold
1.26% of 1428 decks
18 decks
The Mycotyrant
0.19% of 8741 decks
17 decks
Shirei, Shizo's Caretaker
0.29% of 5927 decks
17 decks
Chatterfang, Squirrel General
0.08% of 18636 decks
14 decks
New Cards
Frontline Rush
20% of 5 decks
+19% synergy
Awaken the Honored Dead
20% of 5 decks
+17% synergy
Death Begets Life
20% of 5 decks
+17% synergy
Fangkeeper's Familiar
20% of 5 decks
+18% synergy
Kheru Goldkeeper
20% of 5 decks
+13% synergy
High Synergy Cards
Thromok the Insatiable
65% of 213 decks
+65% synergy
Mycoloth
62% of 376 decks
+60% synergy
Bloodspore Thrinax
55% of 376 decks
+55% synergy
Dragon Broodmother
56% of 213 decks
+55% synergy
Artifact Mutation
54% of 213 decks
+49% synergy
Skullmulcher
43% of 376 decks
+42% synergy
Hellkite Hatchling
38% of 213 decks
+38% synergy
Ravenous Tyrannosaurus
37% of 164 decks
+35% synergy
Marrow Chomper
31% of 376 decks
+31% synergy
Kasla, the Broken Halo
31% of 13 decks
+30% synergy
Top Cards
Ignoble Hierarch
39% of 213 decks
+14% synergy
Cultivate
35% of 376 decks
-10% synergy
Rampant Growth
33% of 376 decks
-1% synergy
Sakura-Tribe Elder
32% of 376 decks
+14% synergy
Thorn-Thrash Viashino
30% of 213 decks
+30% synergy
Skullclamp
30% of 1145 decks
+18% synergy
Preyseizer Dragon
30% of 466 decks
+30% synergy
Swords to Plowshares
30% of 214 decks
-33% synergy
Village Rites
30% of 1145 decks
+20% synergy
Ravenous Gigantotherium
30% of 376 decks
+30% synergy
Game Changers
Smothering Tithe
9% of 214 decks
-14% synergy
Demonic Tutor
9% of 1145 decks
-13% synergy
Bolas's Citadel
7% of 1145 decks
-1% synergy
Rhystic Study
6% of 115 decks
-20% synergy
Vampiric Tutor
5% of 1145 decks
-12% synergy
Creatures
Sprouting Thrinax
28% of 213 decks
+27% synergy
Flockchaser Phantom
28% of 25 decks
+27% synergy
Mahadi, Emporium Master
27% of 466 decks
+21% synergy
Zulaport Cutthroat
27% of 1145 decks
+18% synergy
Elas il-Kor, Sadistic Pilgrim
26% of 214 decks
+16% synergy
Mirkwood Bats
25% of 1092 decks
+15% synergy
Saint Traft and Rem Karolus
23% of 13 decks
+22% synergy
Dragonlair Spider
23% of 213 decks
+22% synergy
Viscera Seer
23% of 1145 decks
+14% synergy
Fell Beast of Mordor
22% of 955 decks
+22% synergy
Corpsejack Menace
21% of 376 decks
+16% synergy
Teysa Karlov
20% of 214 decks
+15% synergy
Cruel Celebrant
20% of 214 decks
+12% synergy
Predator Dragon
20% of 466 decks
+20% synergy
Chatterfang, Squirrel General
20% of 376 decks
+14% synergy
Pitiless Plunderer
19% of 1145 decks
+12% synergy
Blood Artist
19% of 1145 decks
+8% synergy
Priest of Forgotten Gods
19% of 1145 decks
+17% synergy
Tendershoot Dryad
19% of 376 decks
+16% synergy
Thunder-Thrash Elder
18% of 466 decks
+18% synergy
Heralds of Tzeentch
18% of 115 decks
+18% synergy
Carrion Feeder
18% of 1145 decks
+13% synergy
Gluttonous Hellkite
18% of 122 decks
+16% synergy
Ayara, First of Locthwain
18% of 1145 decks
+14% synergy
Mayhem Devil
18% of 466 decks
+8% synergy
Lord Xander, the Collector
17% of 75 decks
+15% synergy
Kardur, Doomscourge
17% of 466 decks
+11% synergy
Bartolomé del Presidio
17% of 166 decks
+12% synergy
Birds of Paradise
17% of 376 decks
-11% synergy
Bone-Cairn Butcher
17% of 6 decks
+10% synergy
Lord of Change
17% of 115 decks
+16% synergy
Eternal Witness
16% of 376 decks
-3% synergy
Smothering Abomination
16% of 1145 decks
+15% synergy
Gluttonous Slime
16% of 376 decks
+16% synergy
Wildfire Awakener
16% of 51 decks
+14% synergy
Syr Konrad, the Grim
15% of 1145 decks
+6% synergy
Slimefoot and Squee
15% of 213 decks
+14% synergy
Ziatora, the Incinerator
15% of 213 decks
+9% synergy
Solemn Simulacrum
15% of 1145 decks
+1% synergy
Ancient Imperiosaur
15% of 376 decks
+14% synergy
Hidetsugu and Kairi
15% of 115 decks
+14% synergy
Gyruda, Doom of Depths
15% of 115 decks
+13% synergy
Autochthon Wurm
15% of 48 decks
+14% synergy
Gray Merchant of Asphodel
14% of 1145 decks
+6% synergy
Champion of Lambholt
14% of 376 decks
+8% synergy
Hidetsugu, Devouring Chaos
14% of 466 decks
+13% synergy
Scute Swarm
14% of 376 decks
+4% synergy
Korvold, Fae-Cursed King
14% of 213 decks
+10% synergy
Llanowar Elves
14% of 376 decks
-7% synergy
Thalisse, Reverent Medium
14% of 214 decks
+11% synergy
Instants
Aura Mutation
27% of 48 decks
+24% synergy
Beast Within
26% of 376 decks
-11% synergy
Counterspell
25% of 115 decks
-17% synergy
March of the Multitudes
25% of 48 decks
+22% synergy
Dark Ritual
24% of 1145 decks
+1% synergy
Deadly Dispute
21% of 1145 decks
+10% synergy
Despark
21% of 214 decks
+6% synergy
Assassin's Trophy
20% of 376 decks
-10% synergy
Rakshasa's Bargain
20% of 5 decks
+19% synergy
Path to Exile
20% of 214 decks
-27% synergy
Tend the Pests
19% of 376 decks
+18% synergy
Terminate
19% of 466 decks
-1% synergy
Anguished Unmaking
18% of 214 decks
-6% synergy
Negate
17% of 115 decks
-5% synergy
Chaos Warp
17% of 466 decks
-14% synergy
Corrupted Conviction
17% of 1145 decks
+12% synergy
Plumb the Forbidden
15% of 1145 decks
+13% synergy
Putrefy
15% of 376 decks
-1% synergy
Fling
14% of 466 decks
+12% synergy
Tragic Slip
14% of 1145 decks
+11% synergy
Rakdos Charm
13% of 466 decks
-1% synergy
Mortify
13% of 214 decks
+2% synergy
Bedevil
13% of 466 decks
-1% synergy
Abzan Charm
12% of 48 decks
+8% synergy
Heroic Intervention
12% of 376 decks
-18% synergy
Utter End
11% of 214 decks
+5% synergy
Lethal Scheme
11% of 1145 decks
+9% synergy
Mythos of Nethroi
10% of 48 decks
+8% synergy
Pile On
10% of 1145 decks
+9% synergy
Fungal Rebirth
10% of 376 decks
+10% synergy
Return of the Wildspeaker
10% of 376 decks
-2% synergy
Revitalizing Repast
10% of 226 decks
+2% synergy
Defile
10% of 1145 decks
+7% synergy
Inkshield
10% of 214 decks
+4% synergy
Fracture
10% of 214 decks
+3% synergy
Crackling Doom
10% of 51 decks
+2% synergy
Second Harvest
10% of 376 decks
+5% synergy
Crosis's Charm
9% of 75 decks
+7% synergy
Thrill of Possibility
9% of 466 decks
-1% synergy
Harrow
9% of 376 decks
-0% synergy
Generous Gift
9% of 214 decks
-16% synergy
Refute
9% of 34 decks
+6% synergy
Artistic Refusal
9% of 115 decks
+8% synergy
Brainstorm
9% of 115 decks
-11% synergy
Malakir Rebirth
9% of 1145 decks
+1% synergy
Abrade
9% of 466 decks
-3% synergy
Rite of Harmony
8% of 48 decks
+6% synergy
Sundering Growth
8% of 48 decks
+4% synergy
Arachnogenesis
8% of 376 decks
+6% synergy
Inspiring Call
8% of 376 decks
+0% synergy
Sorceries
Victimize
27% of 1145 decks
+15% synergy
Blasphemous Act
25% of 466 decks
-8% synergy
Farseek
23% of 376 decks
-12% synergy
Fungal Sprouting
21% of 376 decks
+21% synergy
Feed the Swarm
21% of 1145 decks
+4% synergy
Kodama's Reach
21% of 376 decks
-9% synergy
Nature's Lore
20% of 376 decks
-11% synergy
Ruinous Ultimatum
18% of 51 decks
-1% synergy
Dread Return
17% of 1145 decks
+12% synergy
Three Visits
15% of 376 decks
-9% synergy
Eerie Ultimatum
12% of 48 decks
+0% synergy
Sign in Blood
12% of 1145 decks
+3% synergy
Pest Infestation
12% of 376 decks
+10% synergy
Rite of Oblivion
12% of 214 decks
+9% synergy
Kaya's Wrath
12% of 214 decks
+9% synergy
Hour of Reckoning
11% of 214 decks
+7% synergy
Lich-Knights' Conquest
10% of 994 decks
+8% synergy
Shamanic Revelation
10% of 376 decks
+2% synergy
Damn
10% of 214 decks
-6% synergy
Faithless Looting
10% of 466 decks
-6% synergy
Culling Ritual
10% of 376 decks
-1% synergy
Requisition Raid
9% of 127 decks
+7% synergy
Austere Command
9% of 214 decks
-4% synergy
Read the Bones
9% of 1145 decks
+2% synergy
Toxic Deluge
9% of 1145 decks
-9% synergy
Diabolic Tutor
8% of 1145 decks
+2% synergy
Diabolic Intent
8% of 1145 decks
-0% synergy
Chandra's Ignition
8% of 466 decks
+3% synergy
Blasphemous Edict
8% of 427 decks
+0% synergy
Ezuri's Predation
8% of 376 decks
+5% synergy
Bala Ged Recovery
8% of 376 decks
-1% synergy
Eaten Alive
8% of 1145 decks
+7% synergy
Reanimate
8% of 1145 decks
-9% synergy
Bone Shards
7% of 1145 decks
+6% synergy
Pitiless Carnage
7% of 723 decks
+6% synergy
Rishkar's Expertise
7% of 376 decks
-3% synergy
Wrath of God
7% of 214 decks
+1% synergy
Saproling Symbiosis
7% of 376 decks
+6% synergy
Demonic Counsel
7% of 523 decks
+5% synergy
Cruel Ultimatum
7% of 75 decks
+4% synergy
Primal Growth
7% of 376 decks
+6% synergy
Exsanguinate
7% of 1145 decks
+1% synergy
Damnation
7% of 1145 decks
-1% synergy
Rise of the Witch-king
6% of 361 decks
+1% synergy
Camaraderie
6% of 48 decks
+4% synergy
Endless Obedience
6% of 1145 decks
+6% synergy
Dig Up
6% of 376 decks
+4% synergy
Sakashima's Will
6% of 115 decks
+6% synergy
Notion Rain
6% of 115 decks
+5% synergy
Treasure Cruise
6% of 115 decks
+1% synergy
Utility Artifacts
Ashnod's Altar
26% of 1145 decks
+19% synergy
Swiftfoot Boots
21% of 1145 decks
-7% synergy
Commander's Sphere
18% of 1145 decks
+4% synergy
Mind Stone
18% of 1145 decks
+2% synergy
Lightning Greaves
17% of 1145 decks
-8% synergy
Wayfarer's Bauble
13% of 1145 decks
+3% synergy
Jet Medallion
12% of 1145 decks
+9% synergy
Phyrexian Altar
12% of 1145 decks
+8% synergy
Bontu's Monument
11% of 1145 decks
+9% synergy
Izzet Locket
11% of 75 decks
+10% synergy
Crowded Crypt
8% of 1145 decks
+6% synergy
Rakdos Locket
8% of 466 decks
+7% synergy
Mage Slayer
7% of 213 decks
+5% synergy
Dimir Locket
7% of 115 decks
+6% synergy
Izzet Cluestone
7% of 75 decks
+6% synergy
Vat of Rebirth
6% of 1145 decks
+5% synergy
The Ozolith
6% of 1145 decks
+3% synergy
Idol of Oblivion
6% of 1145 decks
+1% synergy
Stormbeacon Blade
6% of 17 decks
+6% synergy
Ozolith, the Shattered Spire
6% of 376 decks
+1% synergy
Hedge Shredder
6% of 163 decks
+2% synergy
Dimir Cluestone
5% of 115 decks
+5% synergy
Norn's Wellspring
5% of 214 decks
+4% synergy
Enchantments
Rhythm of the Wild
29% of 213 decks
+5% synergy
Moldervine Reclamation
27% of 376 decks
+19% synergy
Bastion of Remembrance
19% of 1145 decks
+13% synergy
Doubling Season
19% of 376 decks
+9% synergy
Insidious Roots
18% of 274 decks
+12% synergy
Awakening Zone
17% of 376 decks
+15% synergy
Parallel Lives
14% of 376 decks
+7% synergy
Feast of the Victorious Dead
14% of 211 decks
+12% synergy
Black Market
13% of 1145 decks
+9% synergy
Anointed Procession
13% of 214 decks
+4% synergy
Stillness in Motion
12% of 8 decks
+12% synergy
Cryptolith Rite
12% of 376 decks
+9% synergy
Phyrexian Arena
12% of 1145 decks
-4% synergy
Goblin Bombardment
12% of 466 decks
+5% synergy
Impact Tremors
12% of 466 decks
+1% synergy
Grave Pact
11% of 1145 decks
+7% synergy
Vampiric Rites
11% of 1145 decks
+8% synergy
Fecundity
11% of 376 decks
+10% synergy
Primal Vigor
11% of 376 decks
+8% synergy
Cathars' Crusade
11% of 214 decks
+5% synergy
Aura Shards
10% of 48 decks
+2% synergy
Golgari Germination
10% of 376 decks
+9% synergy
Skrelv's Hive
10% of 214 decks
+8% synergy
Dictate of Erebos
10% of 1145 decks
+7% synergy
Garruk's Uprising
10% of 376 decks
-6% synergy
Felidar Retreat
10% of 214 decks
+3% synergy
Death's Presence
10% of 376 decks
+9% synergy
Deathreap Ritual
10% of 376 decks
+5% synergy
Riveteers Ascendancy
9% of 213 decks
+5% synergy
Greater Good
9% of 376 decks
+4% synergy
Reflections of Littjara
9% of 115 decks
+4% synergy
Growing Rites of Itlimoc
9% of 376 decks
+3% synergy
Dazzling Theater // Prop Room
8% of 83 decks
+5% synergy
Abzan Ascendancy
8% of 48 decks
+7% synergy
Mirari's Wake
8% of 48 decks
-5% synergy
Fallen Ideal
8% of 1145 decks
+8% synergy
Necrogenesis
8% of 376 decks
+7% synergy
Hardened Scales
8% of 376 decks
-1% synergy
Warstorm Surge
8% of 466 decks
+3% synergy
Assemble the Legion
8% of 51 decks
+4% synergy
One with the Kami
8% of 376 decks
+7% synergy
Branching Evolution
8% of 376 decks
+2% synergy
Hidden Stockpile
7% of 214 decks
+6% synergy
Intangible Virtue
7% of 214 decks
+2% synergy
Bitterblossom
7% of 1145 decks
+3% synergy
Liliana's Contract
7% of 1145 decks
+6% synergy
Conclave Tribunal
7% of 214 decks
+7% synergy
Fungal Plots
7% of 376 decks
+6% synergy
City on Fire
7% of 466 decks
+3% synergy
Kaya's Ghostform
7% of 1145 decks
+3% synergy
Battles
Invasion of Segovia
5% of 115 decks
+4% synergy
Planeswalkers
Xenagos, the Reveler
8% of 213 decks
+5% synergy
Kaya, Geist Hunter
7% of 214 decks
+5% synergy
Zariel, Archduke of Avernus
6% of 466 decks
+5% synergy
Ob Nixilis, the Adversary
6% of 466 decks
+5% synergy
Tibalt, Rakish Instigator
5% of 466 decks
+5% synergy
Geyadrone Dihada
5% of 75 decks
+4% synergy
Liliana, Dreadhorde General
5% of 1145 decks
+2% synergy
Utility Lands
Bojuka Bog
27% of 1145 decks
-3% synergy
Kessig Wolf Run
25% of 213 decks
+9% synergy
Westvale Abbey
18% of 1145 decks
+16% synergy
Reliquary Tower
18% of 1145 decks
-12% synergy
Vault of the Archangel
17% of 214 decks
+6% synergy
Cabal Coffers
15% of 1145 decks
+5% synergy
Rogue's Passage
14% of 1145 decks
-6% synergy
Urborg, Tomb of Yawgmoth
13% of 1145 decks
+4% synergy
Phyrexian Tower
13% of 1145 decks
+4% synergy
Gavony Township
12% of 48 decks
+3% synergy
Mortuary Mire
11% of 1145 decks
+6% synergy
Barren Moor
11% of 1145 decks
+7% synergy
Witch's Cottage
10% of 1145 decks
+7% synergy
Kher Keep
10% of 466 decks
+8% synergy
Grim Backwoods
10% of 376 decks
+6% synergy
Mistrise Village
10% of 10 decks
+4% synergy
Temple of the False God
10% of 1145 decks
+0% synergy
Khalni Garden
9% of 376 decks
+8% synergy
Cabal Stronghold
9% of 1145 decks
+6% synergy
High Market
9% of 1145 decks
+6% synergy
Oran-Rief, the Vastwood
9% of 376 decks
+4% synergy
Skarrg, the Rage Pits
8% of 213 decks
+6% synergy
Mosswort Bridge
7% of 376 decks
-3% synergy
Castle Locthwain
7% of 1145 decks
+2% synergy
Castle Ardenvale
7% of 214 decks
+2% synergy
Spymaster's Vault
6% of 662 decks
+3% synergy
Windbrisk Heights
6% of 214 decks
+1% synergy
Nykthos, Shrine to Nyx
6% of 1145 decks
+0% synergy
Takenuma, Abandoned Mire
5% of 1145 decks
-4% synergy
Tranquil Thicket
5% of 376 decks
+1% synergy
Boseiju, Who Endures
5% of 376 decks
-14% synergy
Mana Artifacts
Sol Ring
69% of 1145 decks
-15% synergy
Arcane Signet
55% of 1145 decks
-18% synergy
Orzhov Signet
32% of 214 decks
+6% synergy
Rakdos Signet
28% of 466 decks
-1% synergy
Talisman of Hierarchy
24% of 214 decks
-2% synergy
Boros Signet
22% of 51 decks
-1% synergy
Talisman of Creativity
21% of 75 decks
-7% synergy
Dimir Signet
20% of 115 decks
-9% synergy
Talisman of Dominance
20% of 115 decks
-12% synergy
Izzet Signet
19% of 75 decks
-9% synergy
Golgari Signet
18% of 376 decks
+6% synergy
Gruul Signet
16% of 213 decks
+5% synergy
Talisman of Indulgence
16% of 466 decks
-11% synergy
Charcoal Diamond
15% of 1145 decks
+10% synergy
Thought Vessel
13% of 1145 decks
-5% synergy
Sky Diamond
12% of 115 decks
+8% synergy
Fellwar Stone
11% of 1145 decks
-10% synergy
Wand of the Worldsoul
11% of 214 decks
+10% synergy
Talisman of Resilience
11% of 376 decks
-2% synergy
Talisman of Conviction
10% of 51 decks
-14% synergy
Fire Diamond
8% of 466 decks
+3% synergy
Marble Diamond
7% of 214 decks
+4% synergy
Relic of Sauron
7% of 68 decks
-1% synergy
Talisman of Impulse
7% of 213 decks
-3% synergy
Heraldic Banner
6% of 1145 decks
+4% synergy
Obelisk of Jund
6% of 213 decks
+5% synergy
Midnight Clock
5% of 115 decks
-0% synergy
Lands
Crumbling Necropolis
60% of 75 decks
+29% synergy
Savage Lands
54% of 213 decks
+31% synergy
Command Tower
51% of 1145 decks
-23% synergy
Opulent Palace
46% of 26 decks
+19% synergy
Arcane Sanctum
44% of 25 decks
+16% synergy
Cinder Glade
44% of 213 decks
+5% synergy
Sandsteppe Citadel
42% of 48 decks
+15% synergy
Isolated Chapel
40% of 214 decks
+10% synergy
Canopy Vista
40% of 48 decks
+3% synergy
Nomad Outpost
39% of 51 decks
+10% synergy
Woodland Cemetery
37% of 376 decks
+7% synergy
Smoldering Marsh
36% of 466 decks
+2% synergy
Temple of Silence
33% of 214 decks
+14% synergy
Ziatora's Proving Ground
32% of 213 decks
+3% synergy
Orzhov Basilica
31% of 214 decks
+15% synergy
Frontier Bivouac
31% of 13 decks
+2% synergy
Sunken Hollow
30% of 115 decks
-4% synergy
Rootbound Crag
30% of 213 decks
+5% synergy
Dragonskull Summit
29% of 466 decks
-3% synergy
Tainted Field
28% of 214 decks
+14% synergy
Golgari Rot Farm
28% of 376 decks
+10% synergy
Savai Triome
27% of 51 decks
+1% synergy
Twisted Landscape
27% of 122 decks
+15% synergy
Stomping Ground
27% of 213 decks
-14% synergy
Seaside Citadel
27% of 15 decks
+0% synergy
Overgrown Tomb
26% of 376 decks
-15% synergy
Llanowar Wastes
26% of 376 decks
-0% synergy
Deceptive Landscape
26% of 27 decks
+18% synergy
Caves of Koilos
25% of 214 decks
-4% synergy
Rockfall Vale
25% of 213 decks
+3% synergy
Godless Shrine
25% of 214 decks
-15% synergy
Prairie Stream
24% of 25 decks
-10% synergy
Clifftop Retreat
24% of 51 decks
-7% synergy
Jungle Shrine
24% of 17 decks
-9% synergy
Myriad Landscape
23% of 1145 decks
+5% synergy
Blood Crypt
23% of 466 decks
-15% synergy
Mystic Monastery
23% of 13 decks
-4% synergy
Xander's Lounge
23% of 75 decks
-3% synergy
Temple of Malice
23% of 466 decks
+8% synergy
Temple of Malady
22% of 376 decks
+6% synergy
Gruul Turf
22% of 213 decks
+7% synergy
Evolving Wilds
22% of 1145 decks
+1% synergy
Sacred Foundry
22% of 51 decks
-14% synergy
Scoured Barrens
21% of 214 decks
+12% synergy
Rakdos Carnarium
21% of 466 decks
+7% synergy
Sulfur Falls
21% of 75 decks
-11% synergy
Selesnya Sanctuary
21% of 48 decks
+7% synergy
Sunpetal Grove
21% of 48 decks
-4% synergy
Indatha Triome
21% of 48 decks
-9% synergy
Exotic Orchard
21% of 1145 decks
-16% synergy