Flamekin Herald (Card)

Flamekin Herald
In 11344 decks 0% of 2474814 decks
Brian Cain
Nov 28, 2023
Brew For Your Buck - A Dedication To A Friend, Aristocrats And Spellslinger
Build a budget Aristocrats deck with a double-sided commander!
Andrew Cummings
Nov 10, 2020
Commander Legends Set Review - Red
The red review must be red! I mean, read!
Archidekt
Commander Spellbook
Moxfield
Scryfall
MTGStocks
Averna, the Chaos Bloom
36.87% of 3895 decks 1436 decks
Maelstrom Wanderer
21.80% of 5960 decks 1299 decks
Yidris, Maelstrom Wielder
18.02% of 6638 decks 1196 decks
Extus, Oriq Overlord
19.99% of 5353 decks 1070 decks
Squee, the Immortal
49.06% of 587 decks 288 decks
Syrix, Carrier of the Flame
13.71% of 2093 decks 287 decks
Abaddon the Despoiler
4.86% of 5127 decks 249 decks
The War Doctor // K-9, Mark I
45.95% of 383 decks 176 decks
Dargo, the Shipwrecker // Tevesh Szat, Doom of Fools
36.59% of 481 decks 176 decks
Ramos, Dragon Engine
1.90% of 8730 decks 166 decks
Dargo, the Shipwrecker // Jeska, Thrice Reborn
18.32% of 797 decks 146 decks
Tana, the Bloodsower // Tymna the Weaver
4.31% of 2878 decks 124 decks
Etali, Primal Conqueror
1.36% of 8872 decks 121 decks
The War Doctor // Ryan Sinclair
13.37% of 815 decks 109 decks
Cecily, Haunted Mage // Othelm, Sigardian Outcast
4.90% of 1919 decks 94 decks
Laelia, the Blade Reforged
5.08% of 1831 decks 93 decks
Horde of Notions
3.62% of 2486 decks 90 decks
The War Doctor // Clara Oswald
11.39% of 790 decks 90 decks
New Cards
Infestation Sage
88% of 33 decks +66% synergy
Koma, World-Eater
39% of 153 decks +22% synergy
Loot, Exuberant Explorer
38% of 107 decks +12% synergy
Blasphemous Edict
38% of 141 decks +4% synergy
Leyline of Mutation
36% of 33 decks +21% synergy
High Synergy Cards
Imoti, Celebrant of Bounty
79% of 5435 decks +76% synergy
Shardless Agent
63% of 5435 decks +61% synergy
Bloodbraid Elf
61% of 6623 decks +59% synergy
Averna, the Chaos Bloom
55% of 5435 decks +53% synergy
Etherium-Horn Sorcerer
53% of 6632 decks +52% synergy
Sakashima's Protege
52% of 6632 decks +51% synergy
Apex Devastator
54% of 6623 decks +51% synergy
Maelstrom Wanderer
57% of 5435 decks +51% synergy
Bloodbraid Challenger
51% of 1837 decks +50% synergy
Maelstrom Nexus
57% of 758 decks +49% synergy
Top Cards
Cultivate
62% of 6623 decks +16% synergy
Bigger on the Inside
51% of 3599 decks +49% synergy
Farseek
51% of 6623 decks +17% synergy
Natural Reclamation
50% of 6623 decks +49% synergy
Swords to Plowshares
50% of 3265 decks -13% synergy
Kodama's Reach
49% of 6623 decks +18% synergy
Abaddon the Despoiler
46% of 2230 decks +45% synergy
Rampant Growth
46% of 6623 decks +11% synergy
Monstrous Vortex
45% of 1541 decks +42% synergy
Annoyed Altisaur
45% of 6623 decks +44% synergy
Creatures
Sweet-Gum Recluse
43% of 6623 decks +42% synergy
Rashmi, Eternities Crafter
40% of 5435 decks +38% synergy
Aurora Phoenix
40% of 11344 decks +40% synergy
Wild-Magic Sorcerer
40% of 11199 decks +37% synergy
Felix Five-Boots
38% of 538 decks +34% synergy
Enigma Sphinx
35% of 772 decks +34% synergy
Faldorn, Dread Wolf Herald
34% of 6406 decks +31% synergy
Etali, Primal Storm
33% of 11344 decks +24% synergy
Heralds of Tzeentch
32% of 6188 decks +31% synergy
Etali, Primal Conqueror
31% of 5129 decks +19% synergy
Ignoble Hierarch
29% of 2333 decks +3% synergy
Ancient Cellarspawn
28% of 351 decks +24% synergy
Faeburrow Elder
28% of 1348 decks +17% synergy
Vega, the Watcher
28% of 1370 decks +25% synergy
Cruel Celebrant
28% of 2131 decks +19% synergy
Thalisse, Reverent Medium
28% of 2131 decks +25% synergy
Glarb, Calamity's Augur
27% of 251 decks +23% synergy
Maelstrom Archangel
26% of 758 decks +21% synergy
Wildsear, Scouring Maw
26% of 779 decks +20% synergy
Elas il-Kor, Sadistic Pilgrim
26% of 2018 decks +15% synergy
Noise Marine
26% of 10512 decks +25% synergy
Kellan, the Kid
26% of 227 decks +22% synergy
Tatyova, Benthic Druid
25% of 5435 decks +13% synergy
Nalfeshnee
25% of 10984 decks +23% synergy
Birds of Paradise
25% of 6623 decks -2% synergy
Teysa Karlov
25% of 2131 decks +20% synergy
Sakura-Tribe Elder
25% of 6623 decks +6% synergy
Mossborn Hydra
24% of 244 decks +13% synergy
Elenda, the Dusk Rose
23% of 2131 decks +18% synergy
Mahadi, Emporium Master
23% of 4791 decks +16% synergy
Thryx, the Sudden Storm
23% of 6632 decks +22% synergy
Pitiless Plunderer
22% of 4937 decks +15% synergy
Mizzix, Replica Rider
22% of 5716 decks +20% synergy
Prosper, Tome-Bound
22% of 4881 decks +19% synergy
Elfsworn Giant
21% of 107 decks +16% synergy
Surrak Dragonclaw
21% of 5435 decks +15% synergy
Kambal, Profiteering Mayor
21% of 643 decks +12% synergy
Omnath, Locus of All
21% of 525 decks +18% synergy
Mayhem Devil
21% of 4937 decks +11% synergy
Maelstrom Colossus
20% of 11344 decks +20% synergy
Eternal Witness
20% of 6623 decks -1% synergy
Marionette Apprentice
20% of 1222 decks +13% synergy
The First Doctor
20% of 771 decks +19% synergy
Keeper of Secrets
19% of 10512 decks +18% synergy
Zulaport Cutthroat
19% of 4937 decks +9% synergy
Jodah, Archmage Eternal
19% of 758 decks +15% synergy
Anim Pakal, Thousandth Moon
19% of 1431 decks +11% synergy
Boarding Party
19% of 11344 decks +18% synergy
Omnath, Locus of Rage
18% of 6623 decks +13% synergy
Temur Sabertooth
18% of 6623 decks +15% synergy
Instants
Growth Spiral
43% of 5435 decks +21% synergy
Beast Within
42% of 6623 decks +4% synergy
Chaos Warp
40% of 11344 decks +8% synergy
Path to Exile
36% of 3265 decks -10% synergy
Brainstorm
36% of 6632 decks +15% synergy
Forceful Denial
34% of 6632 decks +34% synergy
Go Forth
31% of 13 decks +21% synergy
Bituminous Blast
25% of 4937 decks +24% synergy
Afterlife Insurance
24% of 731 decks +23% synergy
Entish Restoration
22% of 4311 decks +13% synergy
Generous Gift
21% of 3265 decks -4% synergy
Call the Coppercoats
21% of 3265 decks +18% synergy
Violent Outburst
21% of 6623 decks +20% synergy
Anguished Unmaking
21% of 2131 decks -3% synergy
Counterspell
20% of 6632 decks -23% synergy
Despark
20% of 2131 decks +5% synergy
Village Rites
19% of 4937 decks +10% synergy
Deadly Dispute
19% of 4881 decks +8% synergy
Dark Ritual
19% of 4937 decks -4% synergy
Secure the Wastes
17% of 3265 decks +15% synergy
Inkshield
17% of 2119 decks +11% synergy
Blood for the Blood God!
17% of 4541 decks +13% synergy
Terminate
16% of 4937 decks -4% synergy
Release to the Wind
16% of 6632 decks +16% synergy
Assassin's Trophy
16% of 2353 decks -15% synergy
Harrow
14% of 6623 decks +4% synergy
Gallifrey Falls // No More
14% of 1897 decks +13% synergy
Corrupted Conviction
14% of 3523 decks +8% synergy
Boros Charm
13% of 3265 decks -12% synergy
Planar Genesis
13% of 1327 decks +5% synergy
Teferi's Protection
13% of 3265 decks -7% synergy
Rakdos Charm
12% of 4937 decks -2% synergy
Cyclonic Rift
12% of 6632 decks -16% synergy
Heroic Intervention
12% of 6623 decks -18% synergy
Plumb the Forbidden
11% of 4911 decks +8% synergy
Flawless Maneuver
11% of 3265 decks +1% synergy
Delayed Blast Fireball
11% of 10984 decks +8% synergy
Untimely Malfunction
11% of 932 decks -5% synergy
Bedevil
11% of 4937 decks -3% synergy
Body Count
11% of 4828 decks +10% synergy
Frantic Search
11% of 6632 decks -2% synergy
Void Rend
10% of 745 decks -4% synergy
Rootborn Defenses
10% of 3265 decks +7% synergy
Unite the Coalition
10% of 704 decks +6% synergy
Fracture
10% of 2119 decks +3% synergy
Akroma's Will
10% of 3265 decks +0% synergy
Fury Storm
10% of 11344 decks +9% synergy
Deflecting Swat
9% of 11344 decks -7% synergy
Stroke of Midnight
9% of 2082 decks -3% synergy
Return of the Wildspeaker
9% of 6623 decks -4% synergy
Sorceries
Call Forth the Tempest
35% of 6456 decks +33% synergy
Nature's Lore
35% of 6623 decks +3% synergy
Blasphemous Act
33% of 11344 decks -0% synergy
Genesis Ultimatum
33% of 5435 decks +27% synergy
Into the Time Vortex
32% of 6258 decks +31% synergy
Deny Reality
30% of 2404 decks +30% synergy
Volcanic Torrent
29% of 11344 decks +28% synergy
Three Visits
29% of 6623 decks +5% synergy
Inevitable Betrayal
28% of 6575 decks +26% synergy
Throes of Chaos
27% of 11344 decks +26% synergy
Ruinous Ultimatum
22% of 2131 decks +4% synergy
Rishkar's Expertise
21% of 6623 decks +10% synergy
Ancestral Vision
20% of 6632 decks +19% synergy
Raise the Past
19% of 72 decks +9% synergy
Profane Tutor
19% of 4896 decks +16% synergy
Jeska's Will
19% of 11344 decks +1% synergy
Lingering Souls
18% of 2131 decks +17% synergy
Hop to It
18% of 455 decks +16% synergy
Skyshroud Claim
17% of 6623 decks +8% synergy
Hit the Mother Lode
17% of 5730 decks +15% synergy
Let the Galaxy Burn
16% of 10512 decks +16% synergy
Conflux
14% of 758 decks +10% synergy
Martial Coup
14% of 3265 decks +11% synergy
Blot Out the Sky
13% of 2119 decks +12% synergy
Unexpected Results
13% of 5435 decks +13% synergy
Tempt with Bunnies
13% of 361 decks +8% synergy
Mind's Desire
13% of 6632 decks +12% synergy
Faithless Looting
13% of 11344 decks -4% synergy
Sram's Expertise
13% of 3265 decks +12% synergy
Damn
13% of 2109 decks -4% synergy
Victimize
13% of 4937 decks +1% synergy
Captured Sunlight
12% of 1348 decks +12% synergy
Farewell
11% of 3188 decks -2% synergy
Demonic Tutor
11% of 4937 decks -11% synergy
Urban Evolution
11% of 5435 decks +7% synergy
White Sun's Twilight
11% of 2840 decks +7% synergy
Feed the Swarm
11% of 4937 decks -7% synergy
Slash the Ranks
10% of 3265 decks +9% synergy
Rite of Oblivion
10% of 2091 decks +7% synergy
Search for Tomorrow
10% of 6623 decks +7% synergy
Explore
10% of 6623 decks +1% synergy
Skull Storm
10% of 4937 decks +10% synergy
Boltwave
10% of 200 decks -9% synergy
Vandalblast
9% of 11344 decks -7% synergy
Decimate
9% of 6623 decks +1% synergy
Treasure Cruise
9% of 6632 decks +4% synergy
Increasing Devotion
9% of 3265 decks +7% synergy
Ponder
9% of 6632 decks -4% synergy
Wheel of Fate
8% of 11344 decks +7% synergy
Migration Path
8% of 6623 decks +5% synergy
Utility Artifacts
Swiftfoot Boots
20% of 11344 decks -8% synergy
Lightning Greaves
18% of 11344 decks -7% synergy
Fist of Suns
16% of 758 decks +10% synergy
Crystal Shard
16% of 6632 decks +16% synergy
Meteoric Mace
14% of 11344 decks +14% synergy
Ravenous Amulet
14% of 43 decks +4% synergy
Chimil, the Inner Sun
14% of 5382 decks +11% synergy
Door to Nothingness
12% of 758 decks +8% synergy
Skullclamp
11% of 11344 decks -1% synergy
Wayfarer's Bauble
10% of 11344 decks +0% synergy
Ingenuity Engine
10% of 11344 decks +10% synergy
The Pandorica
9% of 1897 decks +9% synergy
Brotherhood Regalia
9% of 1923 decks +4% synergy
Leyline Axe
9% of 287 decks +3% synergy
TARDIS
9% of 6943 decks +8% synergy
Whispersilk Cloak
9% of 11344 decks +5% synergy
Ashnod's Altar
8% of 11344 decks +0% synergy
Phyrexian Altar
7% of 11344 decks +3% synergy
The Great Henge
7% of 6623 decks -3% synergy
Brass's Tunnel-Grinder
7% of 5535 decks +4% synergy
Hazoret's Monument
7% of 11344 decks +6% synergy
Strionic Resonator
7% of 11344 decks +3% synergy
Smoldering Stagecoach
6% of 3505 decks +6% synergy
Ruby Medallion
6% of 11344 decks +3% synergy
Bolas's Citadel
6% of 4937 decks -3% synergy
Sensei's Divining Top
5% of 11344 decks -0% synergy
Synthesis Pod
5% of 5346 decks +5% synergy
Tome of Legends
5% of 11344 decks +4% synergy
Enchantments
Temur Ascendancy
36% of 5435 decks +21% synergy
Muster the Departed
35% of 580 decks +33% synergy
Leyline of the Guildpact
34% of 230 decks +11% synergy
The Lost and the Damned
29% of 6188 decks +27% synergy
Annie Joins Up
24% of 348 decks +6% synergy
Up the Beanstalk
24% of 3873 decks +19% synergy
Sunbird's Invocation
24% of 11344 decks +22% synergy
Garruk's Uprising
21% of 6623 decks +6% synergy
Caretaker's Talent
21% of 361 decks +9% synergy
Passionate Archaeologist
19% of 10984 decks +17% synergy
Rhythm of the Wild
19% of 6623 decks -4% synergy
The Day of the Doctor
19% of 1925 decks +18% synergy
Assemble the Legion
18% of 3265 decks +13% synergy
Skrelv's Hive
17% of 2840 decks +14% synergy
Smothering Tithe
16% of 3265 decks -9% synergy
Stormcaller's Boon
16% of 1375 decks +16% synergy
Anointed Procession
15% of 3265 decks +6% synergy
Mirari's Wake
15% of 1348 decks +1% synergy
Bastion of Remembrance
15% of 4937 decks +8% synergy
Commander's Insignia
14% of 3265 decks +14% synergy
Rain of Riches
14% of 11056 decks +12% synergy
Ardent Plea
13% of 1375 decks +13% synergy
Flaming Fist
13% of 3155 decks +12% synergy
Warstorm Surge
13% of 11344 decks +8% synergy
Rhystic Study
12% of 6632 decks -16% synergy
Aqueous Form
11% of 6632 decks +7% synergy
Promise of Aclazotz
11% of 2106 decks +10% synergy
Walk-In Closet // Forgotten Cellar
10% of 284 decks -2% synergy
Noble Heritage
10% of 3155 decks +9% synergy
Rite of the Dragoncaller
10% of 200 decks -3% synergy
Impact Tremors
9% of 11344 decks -0% synergy
Zendikar Resurgent
9% of 6623 decks +7% synergy
Goblin Bombardment
9% of 11344 decks +2% synergy
Black Market
9% of 4937 decks +4% synergy
Veteran Soldier
9% of 3155 decks +8% synergy
Bitterblossom
9% of 4937 decks +4% synergy
Charred Foyer // Warped Space
8% of 796 decks +4% synergy
Inspiring Leader
8% of 3155 decks +6% synergy
We Ride at Dawn
8% of 880 decks +8% synergy
Into the Pit
8% of 279 decks +3% synergy
Spelunking
8% of 3177 decks +3% synergy
Prosperous Partnership
8% of 3179 decks +6% synergy
Dazzling Theater // Prop Room
8% of 105 decks -9% synergy
Agent of the Shadow Thieves
8% of 4791 decks +7% synergy
Kozilek's Unsealing
8% of 1860 decks +5% synergy
Sheltered by Ghosts
7% of 150 decks -0% synergy
Grasp of Fate
7% of 3265 decks +4% synergy
Zendikar's Roil
7% of 6623 decks +4% synergy
Myth Unbound
7% of 6623 decks +6% synergy
Black Market Connections
7% of 4791 decks -4% synergy
Battles
Invasion of Alara
13% of 499 decks +10% synergy
Invasion of Tolvada
7% of 1511 decks +6% synergy
Planeswalkers
Quintorius Kand
14% of 1692 decks +12% synergy
Elspeth, Sun's Champion
12% of 3265 decks +7% synergy
Kiora, Behemoth Beckoner
11% of 5435 decks +7% synergy
Kaya, Geist Hunter
9% of 2090 decks +7% synergy
Nicol Bolas, God-Pharaoh
8% of 2404 decks +5% synergy
Tevesh Szat, Doom of Fools
7% of 4937 decks +6% synergy
Utility Lands
Reliquary Tower
22% of 11344 decks -7% synergy
Bojuka Bog
20% of 4937 decks -10% synergy
Rogue's Passage
18% of 11344 decks -2% synergy
Temple of the False God
17% of 11344 decks +7% synergy
Mosswort Bridge
13% of 6623 decks +3% synergy
Boseiju, Who Endures
10% of 6468 decks -9% synergy
Hidden Courtyard
10% of 1692 decks +8% synergy
Kessig Wolf Run
9% of 6623 decks -7% synergy
Command Beacon
8% of 11344 decks +4% synergy
Phyrexian Tower
8% of 4937 decks -1% synergy
Hidden Volcano
8% of 5730 decks +6% synergy
Arena of Glory
8% of 2767 decks -1% synergy
Hidden Nursery
8% of 3177 decks +6% synergy
Yavimaya, Cradle of Growth
8% of 11239 decks -2% synergy
Otawara, Soaring City
7% of 6477 decks -10% synergy
Vault of the Archangel
7% of 2131 decks -4% synergy
Hidden Cataract
7% of 3219 decks +5% synergy
Spinerock Knoll
6% of 11344 decks +2% synergy
Ancient Tomb
6% of 11344 decks -4% synergy
Takenuma, Abandoned Mire
6% of 4847 decks -4% synergy
Urborg, Tomb of Yawgmoth
5% of 11344 decks -4% synergy
Kher Keep
5% of 11344 decks +3% synergy
Trenzalore Clocktower
5% of 3721 decks +4% synergy
Sokenzan, Crucible of Defiance
5% of 11094 decks +0% synergy
Mana Artifacts
Sol Ring
80% of 11344 decks -4% synergy
Arcane Signet
75% of 11344 decks +3% synergy
Rakdos Signet
35% of 4937 decks +6% synergy
Talisman of Conviction
31% of 3265 decks +8% synergy
Boros Signet
30% of 3265 decks +7% synergy
Orzhov Signet
30% of 2131 decks +3% synergy
Talisman of Hierarchy
28% of 2131 decks +4% synergy
Talisman of Indulgence
27% of 4937 decks +0% synergy
Commander's Sphere
23% of 11344 decks +8% synergy
Fellwar Stone
22% of 11344 decks +1% synergy
Simic Signet
21% of 5435 decks +7% synergy
Timeless Lotus
21% of 704 decks +7% synergy
Izzet Signet
20% of 6632 decks -8% synergy
Chromatic Lantern
19% of 11344 decks +9% synergy
Talisman of Progress
18% of 1375 decks -6% synergy
Gruul Signet
17% of 6623 decks +6% synergy
Azorius Signet
17% of 1375 decks -9% synergy
Talisman of Creativity
16% of 6632 decks -13% synergy
Talisman of Dominance
14% of 2404 decks -18% synergy
Mind Stone
13% of 11344 decks -5% synergy
Dimir Signet
12% of 2404 decks -17% synergy
Sol Talisman
10% of 11239 decks +9% synergy
Golgari Signet
9% of 2353 decks -4% synergy
Talisman of Curiosity
8% of 5435 decks -4% synergy
Talisman of Impulse
8% of 6623 decks -1% synergy
Thought Vessel
8% of 11344 decks -9% synergy
Gilded Lotus
6% of 11344 decks +3% synergy
Thran Dynamo
6% of 11344 decks +1% synergy
Fire Diamond
6% of 11344 decks +0% synergy
Selesnya Signet
6% of 1348 decks -3% synergy
Talisman of Resilience
5% of 2353 decks -6% synergy
Séance Board
5% of 608 decks +3% synergy
Relic of Legends
5% of 10756 decks +3% synergy
Lands
Command Tower
80% of 11344 decks +6% synergy
Frontier Bivouac
54% of 5435 decks +26% synergy
Exotic Orchard
49% of 11344 decks +14% synergy
Ketria Triome
44% of 5435 decks +11% synergy
Crumbling Necropolis
43% of 2404 decks +12% synergy
Cinder Glade
40% of 6623 decks +2% synergy
Nomad Outpost
39% of 2131 decks +12% synergy
Ziatora's Proving Ground
38% of 2293 decks +7% synergy
Stomping Ground
37% of 6623 decks -4% synergy
Zagoth Triome
37% of 1986 decks +6% synergy
Opulent Palace
37% of 1986 decks +10% synergy
Bountiful Landscape
37% of 1289 decks +22% synergy
Xander's Lounge
36% of 2348 decks +9% synergy
Blood Crypt
36% of 4937 decks -3% synergy
Breeding Pool
35% of 5435 decks -5% synergy
Steam Vents
35% of 6632 decks -4% synergy
Savai Triome
35% of 2131 decks +8% synergy
Overgrown Tomb
35% of 2353 decks -8% synergy
The World Tree
35% of 753 decks +1% synergy
Godless Shrine
34% of 2131 decks -6% synergy
Sacred Foundry
34% of 3265 decks -2% synergy
Savage Lands
34% of 2353 decks +10% synergy
Watery Grave
33% of 2404 decks -8% synergy
Raugrin Triome
32% of 1375 decks +6% synergy
Jetmir's Garden
32% of 1312 decks -0% synergy
Caves of Koilos
31% of 2131 decks +3% synergy
Mystic Monastery
31% of 1375 decks +4% synergy
Temple Garden
31% of 1348 decks -9% synergy
Hallowed Fountain
31% of 1375 decks -10% synergy
Indatha Triome
31% of 945 decks -0% synergy
Smoldering Marsh
30% of 4937 decks -3% synergy
Evolving Wilds
29% of 11344 decks +8% synergy
Spara's Headquarters
29% of 871 decks -3% synergy
Battlefield Forge
29% of 3265 decks +3% synergy
Jungle Shrine
28% of 1348 decks -4% synergy
Spectator Seating
28% of 3265 decks +3% synergy
Rejuvenating Springs
27% of 5435 decks -1% synergy
Clifftop Retreat
27% of 3265 decks -2% synergy
Training Center
27% of 6632 decks -0% synergy
Dragonskull Summit
27% of 4937 decks -4% synergy
Rockfall Vale
27% of 6495 decks +5% synergy
Luxury Suite
26% of 4937 decks -0% synergy
Sulfur Falls
26% of 6632 decks -5% synergy
Dreamroot Cascade
26% of 5317 decks +7% synergy
Hinterland Harbor
25% of 5435 decks -3% synergy
Simic Growth Chamber
25% of 5435 decks +5% synergy
Isolated Chapel
24% of 2131 decks -3% synergy
Rootbound Crag
24% of 6623 decks +0% synergy
Gruul Turf
24% of 6623 decks +8% synergy
Path of Ancestry
24% of 11344 decks +3% synergy