Carmen, Cruel Skymarcher (Card)
Carmen, Cruel Skymarcher
In 29357 decks
3% of 894441 decks
Feb 7, 2025
One Theme, Three Techs: +1/+1 Counters
Start counting counters and growing your creatures to unnatural sizes with this analysis of the +1/+1 counter theme in Commander.
Jan 17, 2025
2024’s EDHighlights - Shilgengar, Sire of Famine
Orzhov Aristocrats helmed by Shilgengar means a token and counter-filled victory is in sight!
Clavileño, First of the Blessed
82.53% of 7189 decks
5933 decks
Edgar Markov
17.89% of 20810 decks
3723 decks
Elenda, the Dusk Rose
46.21% of 4280 decks
1978 decks
Ratadrabik of Urborg
26.37% of 3955 decks
1043 decks
Teysa Karlov
8.67% of 11449 decks
993 decks
Minthara, Merciless Soul
34.90% of 2682 decks
936 decks
Dihada, Binder of Wills
12.97% of 7122 decks
924 decks
Alesha, Who Smiles at Death
21.32% of 4268 decks
910 decks
Malik, Grim Manipulator
36.92% of 2175 decks
803 decks
Shilgengar, Sire of Famine
14.85% of 4835 decks
718 decks
Teysa, Opulent Oligarch
29.92% of 2112 decks
632 decks
Narci, Fable Singer
18.89% of 3277 decks
619 decks
Amalia Benavides Aguirre
15.41% of 3862 decks
595 decks
Vito, Fanatic of Aclazotz
53.23% of 866 decks
461 decks
Felisa, Fang of Silverquill
36.18% of 1241 decks
449 decks
Caesar, Legion's Emperor
4.12% of 10554 decks
435 decks
Thalia and The Gitrog Monster
3.74% of 8257 decks
309 decks
Teysa, Orzhov Scion
12.24% of 2378 decks
291 decks
New Cards
Rhet-Tomb Mystic
10% of 185 decks
+7% synergy
Bleachbone Verge
5% of 4528 decks
+1% synergy
Hashaton, Scarab's Fist
5% of 194 decks
-1% synergy
Temmet, Naktamun's Will
4% of 194 decks
+1% synergy
Sunbillow Verge
3% of 1768 decks
+0% synergy
High Synergy Cards
Elenda, the Dusk Rose
54% of 29121 decks
+48% synergy
Blood Artist
58% of 29121 decks
+46% synergy
Cruel Celebrant
53% of 29121 decks
+45% synergy
Bartolomé del Presidio
49% of 29121 decks
+44% synergy
Cordial Vampire
43% of 29121 decks
+41% synergy
Charismatic Conqueror
44% of 29121 decks
+40% synergy
Welcoming Vampire
45% of 29121 decks
+39% synergy
Elenda's Hierophant
40% of 29121 decks
+38% synergy
Yahenni, Undying Partisan
39% of 29121 decks
+36% synergy
Master of Dark Rites
37% of 29121 decks
+36% synergy
Top Cards
Swords to Plowshares
69% of 29121 decks
+6% synergy
Viscera Seer
45% of 29121 decks
+36% synergy
Damn
44% of 29121 decks
+28% synergy
Path to Exile
44% of 29121 decks
-2% synergy
Village Rites
39% of 29121 decks
+29% synergy
Farseek
39% of 2039 decks
+5% synergy
Anguished Unmaking
39% of 29121 decks
+15% synergy
Skullclamp
38% of 29121 decks
+26% synergy
Cultivate
36% of 2039 decks
-10% synergy
Stromkirk Captain
35% of 8578 decks
+33% synergy
Game Changers
Smothering Tithe
22% of 29121 decks
-2% synergy
Rhystic Study
22% of 1290 decks
-5% synergy
Cyclonic Rift
15% of 1290 decks
-12% synergy
Demonic Tutor
13% of 29121 decks
-8% synergy
Bolas's Citadel
11% of 29121 decks
+3% synergy
Vampiric Tutor
11% of 29121 decks
-7% synergy
Fierce Guardianship
10% of 1290 decks
-9% synergy
Enlightened Tutor
6% of 29121 decks
-11% synergy
Creatures
Twilight Prophet
35% of 29121 decks
+32% synergy
Sanctum Seeker
34% of 29121 decks
+32% synergy
Mavren Fein, Dusk Apostle
34% of 29121 decks
+33% synergy
Legion Lieutenant
33% of 29121 decks
+31% synergy
Indulgent Aristocrat
33% of 29121 decks
+32% synergy
Teysa Karlov
33% of 29121 decks
+28% synergy
Drana, Liberator of Malakir
32% of 29121 decks
+29% synergy
Vito, Thorn of the Dusk Rose
31% of 29121 decks
+26% synergy
Sythis, Harvest's Hand
29% of 2039 decks
+22% synergy
Elas il-Kor, Sadistic Pilgrim
29% of 29121 decks
+19% synergy
Sanctum Weaver
28% of 2039 decks
+23% synergy
Satsuki, the Living Lore
28% of 2039 decks
+26% synergy
Bloodghast
26% of 29121 decks
+24% synergy
Setessan Champion
26% of 2039 decks
+22% synergy
Patron of the Vein
26% of 29121 decks
+25% synergy
Crossway Troublemakers
26% of 29121 decks
+25% synergy
Jukai Naturalist
26% of 2039 decks
+19% synergy
Butcher of Malakir
25% of 29121 decks
+22% synergy
Edgar, Charmed Groom
25% of 29121 decks
+22% synergy
Eidolon of Blossoms
24% of 2039 decks
+19% synergy
Champion of Dusk
24% of 29121 decks
+23% synergy
Redemption Choir
23% of 29121 decks
+22% synergy
Dusk Legion Sergeant
23% of 29121 decks
+22% synergy
Herald of the Pantheon
22% of 2039 decks
+19% synergy
Olivia, Crimson Bride
22% of 8578 decks
+20% synergy
Mirkwood Bats
21% of 29121 decks
+11% synergy
Yenna, Redtooth Regent
21% of 2039 decks
+18% synergy
Birds of Paradise
21% of 2039 decks
-6% synergy
Eternal Witness
21% of 2039 decks
+0% synergy
Baleful Strix
20% of 1290 decks
+7% synergy
Falkenrath Noble
20% of 29121 decks
+18% synergy
Sakura-Tribe Elder
20% of 2039 decks
+1% synergy
Satyr Enchanter
20% of 2039 decks
+15% synergy
Zulaport Cutthroat
19% of 29121 decks
+10% synergy
Bloodthirsty Conqueror
19% of 10188 decks
+15% synergy
Braids, Arisen Nightmare
19% of 29121 decks
+12% synergy
Captivating Vampire
19% of 29121 decks
+18% synergy
Bloodline Keeper
19% of 29121 decks
+17% synergy
Pitiless Plunderer
18% of 29121 decks
+10% synergy
Weaver of Harmony
18% of 2039 decks
+16% synergy
Clavileño, First of the Blessed
18% of 29121 decks
+16% synergy
Dryad of the Ilysian Grove
17% of 2039 decks
+10% synergy
Vampire Socialite
17% of 8578 decks
+16% synergy
Nighthawk Scavenger
17% of 29121 decks
+15% synergy
Anikthea, Hand of Erebos
17% of 2039 decks
+15% synergy
Kambal, Profiteering Mayor
17% of 21394 decks
+11% synergy
Bloodletter of Aclazotz
17% of 29121 decks
+13% synergy
Oathsworn Vampire
17% of 29121 decks
+16% synergy
Baron Bertram Graywater
17% of 21394 decks
+15% synergy
Preacher of the Schism
16% of 29121 decks
+15% synergy
Instants
Void Rend
34% of 1290 decks
+20% synergy
Counterspell
32% of 1290 decks
-11% synergy
Deadly Dispute
25% of 29121 decks
+14% synergy
Assassin's Trophy
24% of 2039 decks
-7% synergy
Boros Charm
23% of 8578 decks
-2% synergy
Heroic Intervention
22% of 2039 decks
-7% synergy
Generous Gift
22% of 29121 decks
-3% synergy
Beast Within
21% of 2039 decks
-17% synergy
Crackling Doom
20% of 8578 decks
+12% synergy
Despark
20% of 29121 decks
+5% synergy
Dovin's Veto
19% of 1290 decks
+1% synergy
Utter End
18% of 29121 decks
+12% synergy
An Offer You Can't Refuse
17% of 1290 decks
-4% synergy
Arcane Denial
17% of 1290 decks
-3% synergy
Teferi's Protection
16% of 29121 decks
-3% synergy
Mortify
16% of 29121 decks
+4% synergy
Dark Ritual
15% of 29121 decks
-7% synergy
Negate
13% of 1290 decks
-9% synergy
Chaos Warp
13% of 8578 decks
-19% synergy
Stroke of Midnight
12% of 29121 decks
+2% synergy
Return to Dust
12% of 29121 decks
+8% synergy
Fracture
12% of 29121 decks
+5% synergy
Brainstorm
12% of 1290 decks
-9% synergy
Corrupted Conviction
11% of 29121 decks
+6% synergy
Thrill of Possibility
11% of 8578 decks
+1% synergy
Malakir Rebirth
10% of 29121 decks
+2% synergy
Atomize
10% of 1685 decks
+6% synergy
Inkshield
10% of 29121 decks
+4% synergy
Wear // Tear
10% of 8578 decks
+2% synergy
Crop Rotation
10% of 2039 decks
-0% synergy
Growth Spiral
9% of 272 decks
-13% synergy
Fell the Profane
9% of 18827 decks
+1% synergy
Mana Drain
9% of 1290 decks
-6% synergy
Terminate
9% of 8578 decks
-12% synergy
Harrow
8% of 2039 decks
-1% synergy
Revitalizing Repast
8% of 1308 decks
-1% synergy
Frantic Search
8% of 1290 decks
-4% synergy
Entish Restoration
8% of 2039 decks
+1% synergy
Cosmic Rebirth
8% of 2039 decks
+6% synergy
Rakdos Charm
8% of 8578 decks
-7% synergy
Plumb the Forbidden
7% of 29121 decks
+4% synergy
Obscura Charm
7% of 1290 decks
+5% synergy
Demand Answers
7% of 8201 decks
+2% synergy
Deflecting Swat
7% of 8578 decks
-9% synergy
Bedevil
7% of 8578 decks
-7% synergy
Flawless Maneuver
7% of 29121 decks
-3% synergy
Sink into Stupor
7% of 896 decks
-2% synergy
Akroma's Will
7% of 29121 decks
-3% synergy
Swan Song
6% of 1290 decks
-10% synergy
Abzan Charm
6% of 2039 decks
+1% synergy
Sorceries
Olivia's Wrath
32% of 29121 decks
+31% synergy
Eerie Ultimatum
32% of 2039 decks
+20% synergy
Ruinous Ultimatum
31% of 8578 decks
+13% synergy
Nature's Lore
28% of 2039 decks
-4% synergy
Austere Command
28% of 29121 decks
+15% synergy
New Blood
26% of 29121 decks
+25% synergy
Victimize
24% of 29121 decks
+12% synergy
Rampant Growth
23% of 2039 decks
-12% synergy
Kodama's Reach
22% of 2039 decks
-9% synergy
Pact of the Serpent
22% of 29121 decks
+20% synergy
Three Visits
19% of 2039 decks
-5% synergy
Faithless Looting
18% of 8578 decks
+2% synergy
Blasphemous Act
17% of 8578 decks
-16% synergy
Reanimate
14% of 29121 decks
-2% synergy
Rite of Oblivion
14% of 29121 decks
+11% synergy
Supreme Verdict
14% of 1290 decks
-0% synergy
Diabolic Intent
12% of 29121 decks
+3% synergy
Mythos of Snapdax
12% of 8578 decks
+8% synergy
Vandalblast
11% of 8578 decks
-5% synergy
Blasphemous Edict
11% of 9853 decks
+3% synergy
Toxic Deluge
11% of 29121 decks
-7% synergy
Sign in Blood
10% of 29121 decks
+0% synergy
Night's Whisper
9% of 29121 decks
+0% synergy
Windfall
9% of 1290 decks
-4% synergy
Vindicate
9% of 29121 decks
+3% synergy
Exsanguinate
9% of 29121 decks
+3% synergy
Life from the Loam
8% of 2039 decks
+4% synergy
Farewell
8% of 29121 decks
-5% synergy
Unnatural Restoration
8% of 2039 decks
+4% synergy
Bala Ged Recovery
8% of 2039 decks
-1% synergy
Read the Bones
7% of 29121 decks
-1% synergy
Lich-Knights' Conquest
6% of 29121 decks
+4% synergy
Sevinne's Reclamation
6% of 29121 decks
-1% synergy
Cathartic Reunion
6% of 8578 decks
+3% synergy
Splendid Reclamation
6% of 2039 decks
+3% synergy
Feed the Swarm
6% of 29121 decks
-12% synergy
Primevals' Glorious Rebirth
6% of 29121 decks
+2% synergy
Kindred Dominance
6% of 29121 decks
+2% synergy
Culling Ritual
6% of 2039 decks
-5% synergy
Distant Melody
6% of 1290 decks
+1% synergy
Kaya's Wrath
6% of 29121 decks
+3% synergy
Debt to the Deathless
6% of 29121 decks
+2% synergy
Time Wipe
5% of 1290 decks
-1% synergy
Diabolic Tutor
5% of 29121 decks
-1% synergy
Utility Artifacts
Swiftfoot Boots
31% of 29121 decks
+4% synergy
Mind Stone
27% of 29121 decks
+10% synergy
Ashnod's Altar
27% of 29121 decks
+19% synergy
Blade of the Bloodchief
27% of 29121 decks
+26% synergy
Commander's Sphere
23% of 29121 decks
+8% synergy
Glass-Cast Heart
18% of 29121 decks
+18% synergy
Wayfarer's Bauble
18% of 29121 decks
+9% synergy
Lightning Greaves
17% of 29121 decks
-8% synergy
Phyrexian Altar
15% of 29121 decks
+11% synergy
Conduit of Worlds
14% of 2039 decks
+8% synergy
Herald's Horn
10% of 29121 decks
+3% synergy
Tarrian's Journal
8% of 29121 decks
+7% synergy
Heirloom Blade
8% of 29121 decks
+8% synergy
Tarrian's Soulcleaver
7% of 29121 decks
+6% synergy
Vanquisher's Banner
7% of 29121 decks
+3% synergy
The Reaver Cleaver
6% of 8578 decks
+3% synergy
Bident of Thassa
6% of 1290 decks
-1% synergy
Idol of Oblivion
6% of 29121 decks
+1% synergy
Bontu's Monument
6% of 29121 decks
+4% synergy
Ozolith, the Shattered Spire
6% of 2039 decks
+1% synergy
The Great Henge
5% of 2039 decks
-4% synergy
Banner of Kinship
5% of 9853 decks
+2% synergy
Brass's Tunnel-Grinder
5% of 8578 decks
+3% synergy
Enchantments
Exquisite Blood
34% of 29121 decks
+29% synergy
March of the Canonized
31% of 29121 decks
+29% synergy
Binding the Old Gods
30% of 2039 decks
+25% synergy
Enchantress's Presence
25% of 2039 decks
+20% synergy
Sanguine Bond
25% of 29121 decks
+19% synergy
Etchings of the Chosen
24% of 29121 decks
+21% synergy
Sterling Grove
23% of 2039 decks
+15% synergy
Annie Joins Up
22% of 205 decks
+9% synergy
The World Spell
20% of 2039 decks
+20% synergy
The First Iroan Games
20% of 2039 decks
+19% synergy
Phyrexian Arena
19% of 29121 decks
+4% synergy
The Weatherseed Treaty
19% of 2039 decks
+18% synergy
Bastion of Remembrance
18% of 29121 decks
+12% synergy
The Mending of Dominaria
18% of 2039 decks
+16% synergy
Promise of Aclazotz
18% of 29121 decks
+17% synergy
Black Market Connections
17% of 29121 decks
+6% synergy
Teferi's Ageless Insight
17% of 1290 decks
+12% synergy
Seal of Primordium
17% of 2039 decks
+15% synergy
Rhythm of the Wild
17% of 277 decks
-7% synergy
The Aesir Escape Valhalla
16% of 1189 decks
+15% synergy
Warleader's Call
15% of 7756 decks
+7% synergy
Leyline of the Guildpact
15% of 192 decks
-1% synergy
Impact Tremors
15% of 8578 decks
+5% synergy
Anointed Procession
15% of 29121 decks
+6% synergy
Grave Pact
15% of 29121 decks
+10% synergy
Font of Fertility
14% of 2039 decks
+14% synergy
Fall of the Impostor
14% of 2039 decks
+14% synergy
Vampiric Rites
14% of 29121 decks
+12% synergy
Radiant Destiny
14% of 29121 decks
+13% synergy
Shared Animosity
13% of 8578 decks
+8% synergy
Legion's Landing
13% of 29121 decks
+11% synergy
Stensia Masquerade
12% of 8578 decks
+12% synergy
Battle for Bretagard
12% of 2039 decks
+10% synergy
Azusa's Many Journeys
11% of 2039 decks
+10% synergy
Mirari's Wake
11% of 2039 decks
-2% synergy
Khalni Heart Expedition
11% of 2039 decks
+9% synergy
The Huntsman's Redemption
10% of 2039 decks
+10% synergy
Goblin Bombardment
10% of 8578 decks
+4% synergy
Song of Freyalise
10% of 2039 decks
+9% synergy
Mystic Remora
10% of 1290 decks
-8% synergy
Blind Obedience
9% of 29121 decks
+2% synergy
Insidious Roots
9% of 1810 decks
+3% synergy
The Meathook Massacre
9% of 29121 decks
+4% synergy
Doubling Season
9% of 2039 decks
-1% synergy
Dictate of Erebos
8% of 29121 decks
+5% synergy
Black Market
8% of 29121 decks
+4% synergy
Moldervine Reclamation
8% of 2039 decks
-0% synergy
Feast of the Victorious Dead
8% of 29121 decks
+7% synergy
Hardened Scales
8% of 2039 decks
-1% synergy
Kindred Boon
8% of 29121 decks
+8% synergy
Planeswalkers
Sorin, Lord of Innistrad
23% of 29121 decks
+21% synergy
Calix, Destiny's Hand
12% of 2039 decks
+10% synergy
Sorin, Imperious Bloodlord
11% of 29121 decks
+10% synergy
Sorin, Vengeful Bloodlord
7% of 29121 decks
+5% synergy
Liliana, Dreadhorde General
6% of 29121 decks
+3% synergy
Nissa of Shadowed Boughs
5% of 2039 decks
+3% synergy
Utility Lands
Bojuka Bog
52% of 29121 decks
+22% synergy
Vault of the Archangel
44% of 29121 decks
+33% synergy
Rogue's Passage
29% of 29121 decks
+10% synergy
Phyrexian Tower
21% of 29121 decks
+12% synergy
Reliquary Tower
20% of 29121 decks
-10% synergy
Urborg, Tomb of Yawgmoth
18% of 29121 decks
+8% synergy
Windbrisk Heights
18% of 29121 decks
+13% synergy
High Market
16% of 29121 decks
+13% synergy
Boseiju, Who Endures
15% of 2039 decks
-4% synergy
Temple of the False God
14% of 29121 decks
+4% synergy
Otawara, Soaring City
11% of 1290 decks
-5% synergy
Takenuma, Abandoned Mire
11% of 29121 decks
+1% synergy
Three Tree City
10% of 16118 decks
+4% synergy
Minas Tirith
10% of 29121 decks
+2% synergy
Cabal Coffers
9% of 29121 decks
-2% synergy
Westvale Abbey
8% of 29121 decks
+6% synergy
Gavony Township
8% of 2039 decks
-2% synergy
Eiganjo, Seat of the Empire
8% of 29121 decks
-1% synergy
The Shire
8% of 2039 decks
+4% synergy
Castle Locthwain
7% of 29121 decks
+2% synergy
Mines of Moria
7% of 8578 decks
+3% synergy
Spymaster's Vault
6% of 18827 decks
+3% synergy
Sokenzan, Crucible of Defiance
6% of 8578 decks
+2% synergy
Shifting Woodland
6% of 1308 decks
-1% synergy
Shizo, Death's Storehouse
5% of 29121 decks
+1% synergy
Restless Fortress
5% of 29121 decks
+3% synergy
Karn's Bastion
5% of 29121 decks
+0% synergy
Mana Artifacts
Sol Ring
89% of 29121 decks
+5% synergy
Arcane Signet
87% of 29121 decks
+15% synergy
Orzhov Signet
56% of 29121 decks
+29% synergy
Talisman of Hierarchy
53% of 29121 decks
+28% synergy
Talisman of Dominance
33% of 1290 decks
+1% synergy
Rakdos Signet
31% of 8578 decks
+2% synergy
Dimir Signet
30% of 1290 decks
+1% synergy
Talisman of Conviction
29% of 8578 decks
+5% synergy
Talisman of Indulgence
29% of 8578 decks
+2% synergy
Azorius Signet
28% of 1290 decks
+2% synergy
Talisman of Progress
27% of 1290 decks
+3% synergy
Boros Signet
25% of 8578 decks
+2% synergy
Fellwar Stone
18% of 29121 decks
-3% synergy
Timeless Lotus
10% of 221 decks
-2% synergy
Thought Vessel
10% of 29121 decks
-8% synergy
Patchwork Banner
9% of 15881 decks
+4% synergy
Izzet Signet
9% of 281 decks
-19% synergy
Golgari Signet
7% of 2039 decks
-6% synergy
Selesnya Signet
6% of 2039 decks
-2% synergy
Relic of Legends
6% of 29121 decks
+4% synergy
Chromatic Lantern
6% of 29121 decks
-4% synergy
Talisman of Creativity
6% of 281 decks
-23% synergy
Lands
Command Tower
92% of 29121 decks
+18% synergy
Isolated Chapel
69% of 29121 decks
+40% synergy
Nomad Outpost
52% of 8578 decks
+24% synergy
Sandsteppe Citadel
49% of 2039 decks
+23% synergy
Arcane Sanctum
48% of 1290 decks
+20% synergy
Tainted Field
48% of 29121 decks
+35% synergy
Caves of Koilos
46% of 29121 decks
+18% synergy
Dragonskull Summit
46% of 8578 decks
+15% synergy
Path of Ancestry
46% of 29121 decks
+24% synergy
Blood Crypt
46% of 8578 decks
+7% synergy
Raffine's Tower
45% of 1290 decks
+19% synergy
Savai Triome
44% of 8578 decks
+17% synergy
Orzhov Basilica
44% of 29121 decks
+28% synergy
Godless Shrine
43% of 29121 decks
+3% synergy
Temple of Silence
43% of 29121 decks
+25% synergy
Shineshadow Snarl
43% of 29121 decks
+30% synergy
Canopy Vista
42% of 2039 decks
+6% synergy
Sacred Foundry
42% of 8578 decks
+7% synergy
Indatha Triome
42% of 2039 decks
+12% synergy
Overgrown Tomb
42% of 2039 decks
-0% synergy
Temple Garden
41% of 2039 decks
+1% synergy
Hallowed Fountain
39% of 1290 decks
-1% synergy
Watery Grave
38% of 1290 decks
-2% synergy
Clifftop Retreat
37% of 8578 decks
+7% synergy
Woodland Cemetery
36% of 2039 decks
+8% synergy
Vault of Champions
36% of 29121 decks
+10% synergy
Prairie Stream
35% of 1290 decks
+2% synergy
Sunken Hollow
35% of 1290 decks
+0% synergy
Smoldering Marsh
34% of 8578 decks
+1% synergy
Voldaren Estate
34% of 29121 decks
+33% synergy
The World Tree
34% of 221 decks
+1% synergy
Sunpetal Grove
34% of 2039 decks
+10% synergy
Luxury Suite
34% of 8578 decks
+7% synergy
Spectator Seating
32% of 8578 decks
+8% synergy
Battlefield Forge
32% of 8578 decks
+6% synergy
Spara's Headquarters
32% of 272 decks
+2% synergy
Zagoth Triome
31% of 272 decks
+1% synergy
Jetmir's Garden
31% of 277 decks
-0% synergy
Ziatora's Proving Ground
30% of 277 decks
+0% synergy
Secluded Courtyard
30% of 29121 decks
+25% synergy
Myriad Landscape
30% of 29121 decks
+11% synergy
Unclaimed Territory
30% of 29121 decks
+25% synergy
Undergrowth Stadium
29% of 2039 decks
+4% synergy
Sea of Clouds
29% of 1290 decks
+3% synergy
Exotic Orchard
29% of 29121 decks
-7% synergy
Glacial Fortress
28% of 1290 decks
+1% synergy
Morphic Pool
28% of 1290 decks
+2% synergy
Bountiful Promenade
27% of 2039 decks
+3% synergy
Stomping Ground
27% of 277 decks
-14% synergy
Marsh Flats
27% of 29121 decks
+16% synergy