Sigil of Myrkul (Card)

Sigil of Myrkul
In 2302 decks 0% of 2574668 decks
Philomène Gatien
May 31, 2022
Commander Legends: Battle for Baldur's Gate Set Review - Black
The reviews continue! Philomène tackles the latest batch of black Commander cards!
Archidekt
Commander Spellbook
Moxfield
Scryfall
MTGStocks
The Mycotyrant
1.93% of 7525 decks 145 decks
Muldrotha, the Gravetide
0.45% of 16021 decks 72 decks
Kagha, Shadow Archdruid
10.77% of 548 decks 59 decks
Anikthea, Hand of Erebos
0.53% of 10994 decks 58 decks
Sidisi, Brood Tyrant
0.76% of 6424 decks 49 decks
Coram, the Undertaker
1.08% of 4427 decks 48 decks
Myrkul, Lord of Bones
0.64% of 7346 decks 47 decks
Zask, Skittering Swarmlord
1.12% of 4122 decks 46 decks
Bladewing, Deathless Tyrant
3.20% of 1250 decks 40 decks
Old Stickfingers
1.21% of 2820 decks 34 decks
Alesha, Who Smiles at Death
0.56% of 5893 decks 33 decks
Syr Konrad, the Grim
0.69% of 4661 decks 32 decks
The Wise Mothman
0.20% of 14144 decks 28 decks
Alesha, Who Laughs at Fate
1.95% of 1437 decks 28 decks
Baeloth Barrityl, Entertainer // Criminal Past
11.89% of 227 decks 27 decks
Jarad, Golgari Lich Lord
0.63% of 3941 decks 25 decks
Akawalli, the Seething Tower
7.02% of 356 decks 25 decks
Kathril, Aspect Warper
0.76% of 3145 decks 24 decks
New Cards
Inquisitive Glimmer
42% of 19 decks +31% synergy
Hedge Shredder
28% of 207 decks +22% synergy
Insidious Fungus
19% of 186 decks +14% synergy
Overlord of the Balemurk
18% of 308 decks +11% synergy
Blazemire Verge
17% of 100 decks -3% synergy
High Synergy Cards
Crawling Infestation
33% of 1182 decks +32% synergy
Kagha, Shadow Archdruid
31% of 1182 decks +29% synergy
Nyx Weaver
33% of 1182 decks +29% synergy
Gutless Plunderer
49% of 51 decks +28% synergy
Crawling Sensation
26% of 1182 decks +25% synergy
Skull Prophet
29% of 1182 decks +24% synergy
Cemetery Tampering
26% of 2302 decks +24% synergy
Perforating Artist
37% of 35 decks +23% synergy
Splinterfright
24% of 1182 decks +23% synergy
Deadbridge Chant
25% of 1182 decks +22% synergy
Top Cards
Stab
50% of 16 decks +6% synergy
Faithless Looting
37% of 557 decks +20% synergy
Swords to Plowshares
30% of 508 decks -32% synergy
Thrill of Possibility
29% of 557 decks +18% synergy
Dreadwing Scavenger
27% of 33 decks +21% synergy
Ripples of Undeath
27% of 758 decks +21% synergy
Ignoble Hierarch
26% of 161 decks +0% synergy
Cultivate
26% of 1182 decks -20% synergy
Syr Konrad, the Grim
26% of 2302 decks +17% synergy
Demolisher Spawn
25% of 127 decks +21% synergy
Creatures
Sower of Chaos
50% of 6 decks +44% synergy
Dazzling Angel
30% of 10 decks -6% synergy
Old Rutstein
24% of 1182 decks +22% synergy
Sythis, Harvest's Hand
23% of 223 decks +15% synergy
Akawalli, the Seething Tower
22% of 733 decks +21% synergy
Aya of Alexandria
22% of 23 decks +18% synergy
Wardens of the Cycle
22% of 46 decks +13% synergy
Aftermath Analyst
22% of 602 decks +17% synergy
Sakura-Tribe Elder
22% of 1182 decks +3% synergy
Eternal Witness
21% of 1182 decks +1% synergy
Kassandra, Eagle Bearer
21% of 24 decks +19% synergy
Bayek of Siwa
21% of 24 decks +16% synergy
Jukai Naturalist
21% of 223 decks +14% synergy
Honest Rutstein
20% of 497 decks +12% synergy
Ursine Monstrosity
20% of 127 decks +18% synergy
Soul-Shackled Zombie
20% of 51 decks +5% synergy
Vilespawn Spider
19% of 243 decks +19% synergy
Circle of the Land Druid
19% of 1182 decks +19% synergy
Millikin
19% of 2302 decks +18% synergy
Sidisi, Brood Tyrant
19% of 243 decks +17% synergy
Anger
19% of 557 decks +13% synergy
Cankerbloom
19% of 1037 decks +12% synergy
Hama Pashar, Ruin Seeker
19% of 102 decks +18% synergy
World Shaper
18% of 1182 decks +15% synergy
Kiora, the Rising Tide
18% of 33 decks +6% synergy
Urborg Lhurgoyf
18% of 232 decks +17% synergy
Deranged Assistant
18% of 563 decks +17% synergy
Old Stickfingers
18% of 1182 decks +15% synergy
Chainer, Nightmare Adept
18% of 557 decks +13% synergy
Bureau Headmaster
17% of 23 decks +14% synergy
Arbaaz Mir
17% of 23 decks +12% synergy
Stitcher's Supplier
17% of 2302 decks +14% synergy
Satyr Wayfinder
17% of 1182 decks +15% synergy
The Master, Transcendent
17% of 116 decks +12% synergy
Six
17% of 408 decks +10% synergy
Soaring Lightbringer
17% of 71 decks +12% synergy
Golgari Grave-Troll
17% of 1182 decks +15% synergy
Midnight Pathlighter
17% of 102 decks +15% synergy
Strix Lookout
17% of 18 decks +3% synergy
Koma, World-Eater
17% of 18 decks +0% synergy
Glowspore Shaman
16% of 1182 decks +15% synergy
Aminatou, Veil Piercer
16% of 19 decks +11% synergy
Mahadi, Emporium Master
16% of 557 decks +9% synergy
Yenna, Redtooth Regent
15% of 139 decks +11% synergy
Dreadhound
15% of 2302 decks +14% synergy
Deathcap Marionette
15% of 1286 decks +15% synergy
Bramble Familiar
15% of 806 decks +13% synergy
Accursed Marauder
15% of 687 decks +6% synergy
Hungry Ghoul
15% of 68 decks +10% synergy
Enduring Courage
14% of 83 decks +6% synergy
Instants
Refute
24% of 41 decks +17% synergy
Grisly Salvage
23% of 1182 decks +18% synergy
Counterspell
23% of 563 decks -20% synergy
Path to Exile
21% of 508 decks -25% synergy
Terminate
21% of 557 decks +0% synergy
Putrefy
20% of 1182 decks +5% synergy
Chaos Warp
20% of 557 decks -12% synergy
Crackling Doom
19% of 123 decks +11% synergy
Grapple with the Past
17% of 1182 decks +16% synergy
Mutational Advantage
16% of 116 decks +10% synergy
Drag to the Roots
15% of 207 decks +10% synergy
Despark
15% of 508 decks -1% synergy
Peer Past the Veil
15% of 34 decks +13% synergy
Negate
14% of 563 decks -8% synergy
Murder
14% of 2302 decks +11% synergy
Bedevil
14% of 557 decks -0% synergy
Legion Leadership
14% of 29 decks +6% synergy
Withering Torment
14% of 350 decks -5% synergy
Beast Within
13% of 1182 decks -25% synergy
Demand Answers
13% of 281 decks +6% synergy
Corpse Churn
13% of 2302 decks +13% synergy
Deadly Dispute
13% of 2302 decks +2% synergy
Another Chance
13% of 1286 decks +12% synergy
Assassin's Trophy
12% of 1182 decks -18% synergy
Village Rites
12% of 2302 decks +2% synergy
Rakdos Charm
12% of 557 decks -3% synergy
Fact or Fiction
12% of 563 decks +5% synergy
Big Score
11% of 557 decks +2% synergy
Abrade
11% of 557 decks +0% synergy
Bulk Up
11% of 35 decks +1% synergy
Abzan Charm
11% of 223 decks +6% synergy
Void Rend
11% of 102 decks -4% synergy
Dark Ritual
11% of 2302 decks -12% synergy
Unseal the Necropolis
10% of 1814 decks +10% synergy
Revitalizing Repast
10% of 396 decks -2% synergy
Overwhelming Remorse
10% of 2147 decks +9% synergy
Harrow
10% of 1182 decks +1% synergy
Sultai Charm
10% of 243 decks +5% synergy
Mortify
10% of 508 decks -2% synergy
Wasteful Harvest
9% of 1114 decks +9% synergy
Maestros Charm
8% of 84 decks +6% synergy
Deathsprout
8% of 1182 decks +4% synergy
Riveteers Charm
8% of 161 decks +4% synergy
Generous Gift
8% of 508 decks -18% synergy
Obscura Charm
8% of 102 decks +5% synergy
Faithful Mending
8% of 102 decks +5% synergy
Frantic Search
8% of 563 decks -4% synergy
Waterlogged Teachings
8% of 182 decks +2% synergy
Join the Dead
8% of 1286 decks +7% synergy
Go for the Throat
8% of 2302 decks +0% synergy
Sorceries
Inspiration from Beyond
22% of 41 decks +21% synergy
Eerie Ultimatum
22% of 223 decks +9% synergy
Rampant Growth
21% of 1182 decks -14% synergy
Victimize
21% of 2302 decks +9% synergy
Blasphemous Act
20% of 557 decks -14% synergy
Blasphemous Edict
19% of 141 decks -14% synergy
Squirming Emergence
18% of 733 decks +15% synergy
Convert to Slime
17% of 127 decks +13% synergy
Rise of the Witch-king
17% of 881 decks +10% synergy
Druidic Ritual
16% of 1182 decks +16% synergy
Atrocious Experiment
16% of 2302 decks +15% synergy
Thrilling Discovery
15% of 123 decks +13% synergy
Ruinous Ultimatum
15% of 123 decks -3% synergy
Cathartic Reunion
15% of 557 decks +11% synergy
Feed the Swarm
14% of 2302 decks -4% synergy
Nature's Lore
14% of 1182 decks -18% synergy
Beastie Beatdown
14% of 22 decks +11% synergy
Summon Undead
14% of 2302 decks +13% synergy
Kodama's Reach
14% of 1182 decks -18% synergy
Dread Return
13% of 2302 decks +8% synergy
Extract from Darkness
12% of 563 decks +9% synergy
Breach the Multiverse
12% of 1908 decks +8% synergy
Mulch
12% of 1182 decks +11% synergy
Farseek
12% of 1182 decks -22% synergy
Formless Genesis
12% of 127 decks +9% synergy
Diresight
11% of 553 decks +9% synergy
Grab the Prize
11% of 89 decks +5% synergy
Duneblast
11% of 223 decks +8% synergy
Wreck and Rebuild
10% of 105 decks +9% synergy
Damn
10% of 508 decks -6% synergy
Buried Alive
10% of 2302 decks +4% synergy
Time Wipe
10% of 102 decks +3% synergy
Mythos of Snapdax
10% of 123 decks +6% synergy
Terror Tide
9% of 1386 decks +8% synergy
Villainous Wealth
9% of 243 decks +1% synergy
Life from the Loam
9% of 1182 decks +5% synergy
Unburial Rites
8% of 508 decks +6% synergy
Reanimate
8% of 2302 decks -7% synergy
Splendid Reclamation
8% of 1182 decks +5% synergy
Revenge of the Rats
8% of 110 decks +4% synergy
Dread Summons
8% of 2302 decks +7% synergy
Funeral Rites
8% of 2302 decks +8% synergy
Starfall Invocation
8% of 114 decks +4% synergy
Molten Collapse
7% of 321 decks +6% synergy
Tormenting Voice
7% of 557 decks +5% synergy
Wail of the Forgotten
7% of 313 decks +7% synergy
Living Death
7% of 2302 decks +2% synergy
Bala Ged Recovery
7% of 1182 decks -2% synergy
Redress Fate
7% of 71 decks +2% synergy
Sign in Blood
7% of 2302 decks -3% synergy
Utility Artifacts
Swiftfoot Boots
21% of 2302 decks -7% synergy
Perpetual Timepiece
16% of 2302 decks +15% synergy
Brass's Tunnel-Grinder
15% of 324 decks +12% synergy
Conduit of Worlds
15% of 1040 decks +8% synergy
Ravenous Amulet
15% of 68 decks +5% synergy
Matzalantli, the Great Door
12% of 1386 decks +11% synergy
Wayfarer's Bauble
12% of 2302 decks +2% synergy
Lightning Greaves
10% of 2302 decks -15% synergy
Banner of Kinship
9% of 141 decks -4% synergy
Altar of Dementia
8% of 2302 decks +6% synergy
Chainsaw
8% of 145 decks +7% synergy
The Everflowing Well
8% of 327 decks +7% synergy
Mesmeric Orb
8% of 2302 decks +7% synergy
Ghost Lantern
8% of 2302 decks +8% synergy
Palantír of Orthanc
7% of 1626 decks +6% synergy
Ashnod's Altar
7% of 2302 decks -0% synergy
Altar of Bhaal
7% of 2302 decks +6% synergy
Skullclamp
7% of 2302 decks -6% synergy
Codex Shredder
6% of 2302 decks +6% synergy
Ghoulcaller's Bell
6% of 2302 decks +6% synergy
The Skullspore Nexus
6% of 751 decks +2% synergy
Monster Manual
6% of 1182 decks +3% synergy
Hidden Footblade
5% of 153 decks +5% synergy
Tarrian's Journal
5% of 1386 decks +4% synergy
The Spear of Leonidas
5% of 158 decks +3% synergy
Vat of Rebirth
5% of 1964 decks +3% synergy
Enchantments
Sterling Grove
23% of 223 decks +15% synergy
Lorehold Excavation
21% of 123 decks +21% synergy
Sultai Ascendancy
19% of 243 decks +17% synergy
Insidious Roots
18% of 574 decks +10% synergy
Mirari's Wake
17% of 223 decks +3% synergy
Restricted Office // Lecture Hall
17% of 18 decks +8% synergy
Scion of Halaster
16% of 2302 decks +16% synergy
Death's Oasis
15% of 223 decks +14% synergy
Defiled Crypt // Cadaver Lab
15% of 274 decks +11% synergy
Out of the Tombs
14% of 2180 decks +13% synergy
Boon of the Spirit Realm
13% of 324 decks +12% synergy
Secret Arcade // Dusty Parlor
13% of 71 decks +8% synergy
Growing Ranks
13% of 223 decks +10% synergy
Polluted Cistern // Dim Oubliette
12% of 274 decks +9% synergy
The Mending of Dominaria
12% of 1182 decks +10% synergy
Crop Sigil
12% of 1182 decks +11% synergy
Sheltered by Ghosts
11% of 63 decks +4% synergy
Moldervine Reclamation
11% of 1182 decks +2% synergy
Oversold Cemetery
11% of 2302 decks +9% synergy
Caretaker's Talent
10% of 99 decks -1% synergy
Lunar Convocation
10% of 109 decks +4% synergy
Strength of the Harvest
10% of 72 decks +3% synergy
Surgical Suite // Hospital Room
10% of 63 decks +7% synergy
Binding the Old Gods
9% of 1182 decks +3% synergy
Deathreap Ritual
9% of 1182 decks +5% synergy
Derelict Attic // Widow's Walk
9% of 198 decks +6% synergy
Phyrexian Arena
9% of 2302 decks -6% synergy
Abzan Ascendancy
9% of 223 decks +7% synergy
Battle for Bretagard
9% of 223 decks +7% synergy
Bottomless Pool // Locker Room
9% of 94 decks +6% synergy
Walk-In Closet // Forgotten Cellar
8% of 71 decks -3% synergy
Starfield of Nyx
8% of 508 decks +6% synergy
Vraska Joins Up
8% of 485 decks +3% synergy
Privileged Position
8% of 223 decks +5% synergy
Criminal Past
8% of 2302 decks +8% synergy
Trapped in the Screen
8% of 77 decks +7% synergy
Grasp of Fate
8% of 508 decks +4% synergy
Sphere of Safety
8% of 508 decks +3% synergy
Smothering Tithe
8% of 508 decks -17% synergy
Aura Shards
8% of 223 decks -1% synergy
Agent of the Shadow Thieves
8% of 2302 decks +7% synergy
Dazzling Theater // Prop Room
8% of 40 decks -9% synergy
Vampiric Rites
7% of 2302 decks +5% synergy
Secrets of the Dead
7% of 563 decks +7% synergy
Titans' Nest
7% of 243 decks +7% synergy
Sigil of the Empty Throne
7% of 508 decks +4% synergy
Gossip's Talent
7% of 140 decks +5% synergy
Rakdos Joins Up
7% of 241 decks +4% synergy
Ghostly Prison
7% of 508 decks -5% synergy
Bitter Reunion
6% of 524 decks +5% synergy
Battles
Invasion of Amonkhet
12% of 441 decks +10% synergy
Planeswalkers
Grist, the Hunger Tide
11% of 1182 decks +7% synergy
Liliana, Death's Majesty
7% of 2302 decks +5% synergy
Kaito, Cunning Infiltrator
7% of 44 decks +4% synergy
Tamiyo, Collector of Tales
7% of 243 decks +5% synergy
Jace, Wielder of Mysteries
6% of 563 decks +3% synergy
Dihada, Binder of Wills
6% of 118 decks +1% synergy
Calix, Destiny's Hand
5% of 223 decks +3% synergy
Tyvar, Jubilant Brawler
5% of 1040 decks +0% synergy
Utility Lands
Kessig Wolf Run
20% of 161 decks +5% synergy
Bojuka Bog
18% of 2302 decks -12% synergy
Rogue's Passage
16% of 2302 decks -4% synergy
Vault of the Archangel
12% of 508 decks +1% synergy
Restless Reef
12% of 319 decks +8% synergy
Mortuary Mire
11% of 2302 decks +6% synergy
Desolate Lighthouse
11% of 84 decks +7% synergy
Dakmor Salvage
10% of 2302 decks +8% synergy
Temple of the False God
9% of 2302 decks -0% synergy
Shifting Woodland
9% of 396 decks -0% synergy
Reliquary Tower
9% of 2302 decks -21% synergy
Tranquil Thicket
9% of 1182 decks +5% synergy
Hidden Nursery
9% of 747 decks +7% synergy
Takenuma, Abandoned Mire
9% of 2302 decks -2% synergy
Grim Backwoods
9% of 1182 decks +5% synergy
Nephalia Drownyard
9% of 563 decks +6% synergy
Hidden Necropolis
9% of 1386 decks +7% synergy
Barren Moor
8% of 2302 decks +5% synergy
Restless Cottage
8% of 824 decks +3% synergy
Gavony Township
8% of 223 decks -1% synergy
Restless Vents
8% of 321 decks +5% synergy
Witch's Cottage
7% of 2302 decks +3% synergy
Forgotten Cave
6% of 557 decks +2% synergy
Spymaster's Vault
6% of 783 decks +2% synergy
Urborg, Tomb of Yawgmoth
6% of 2302 decks -3% synergy
Hall of Heliod's Generosity
6% of 508 decks -1% synergy
Geier Reach Sanitarium
6% of 2302 decks +2% synergy
Mystic Sanctuary
6% of 563 decks -6% synergy
Restless Fortress
6% of 320 decks +2% synergy
Boseiju, Who Endures
5% of 1182 decks -14% synergy
Cabal Coffers
5% of 2302 decks -5% synergy
Svogthos, the Restless Tomb
5% of 1182 decks +5% synergy
Hidden Volcano
5% of 334 decks +3% synergy
Three Tree City
5% of 570 decks -4% synergy
Lupinflower Village
5% of 119 decks +3% synergy
Mana Artifacts
Sol Ring
64% of 2302 decks -20% synergy
Arcane Signet
57% of 2302 decks -16% synergy
Rakdos Signet
29% of 557 decks -0% synergy
Commander's Sphere
23% of 2302 decks +8% synergy
Orzhov Signet
23% of 508 decks -4% synergy
Dimir Signet
22% of 563 decks -7% synergy
Boros Signet
18% of 123 decks -5% synergy
Golgari Signet
17% of 1182 decks +4% synergy
Izzet Signet
17% of 84 decks -11% synergy
Mind Stone
16% of 2302 decks -1% synergy
Charcoal Diamond
16% of 2302 decks +11% synergy
Talisman of Creativity
15% of 84 decks -13% synergy
Talisman of Dominance
15% of 563 decks -17% synergy
Talisman of Indulgence
15% of 557 decks -12% synergy
Talisman of Conviction
15% of 123 decks -9% synergy
Azorius Signet
14% of 102 decks -12% synergy
Sky Diamond
12% of 563 decks +7% synergy
Talisman of Resilience
11% of 1182 decks -1% synergy
Talisman of Impulse
11% of 161 decks +1% synergy
Marble Diamond
10% of 508 decks +6% synergy
Talisman of Hierarchy
10% of 508 decks -14% synergy
Fire Diamond
10% of 557 decks +5% synergy
Simic Signet
9% of 243 decks -5% synergy
Fellwar Stone
9% of 2302 decks -12% synergy
Talisman of Progress
9% of 102 decks -14% synergy
Patchwork Banner
9% of 511 decks -1% synergy
Gruul Signet
8% of 161 decks -4% synergy
Savai Crystal
7% of 123 decks +6% synergy
Selesnya Signet
7% of 223 decks -1% synergy
Moss Diamond
7% of 1182 decks +5% synergy
Relic of Sauron
6% of 62 decks -5% synergy
Talisman of Curiosity
6% of 243 decks -6% synergy
Mardu Banner
6% of 123 decks +4% synergy
Decanter of Endless Water
6% of 2302 decks +1% synergy
Thought Vessel
5% of 2302 decks -12% synergy
Talisman of Unity
5% of 223 decks -2% synergy
Lands
Command Tower
64% of 2302 decks -10% synergy
Twisted Landscape
50% of 68 decks +31% synergy
Sandsteppe Citadel
43% of 223 decks +17% synergy
Opulent Palace
42% of 243 decks +15% synergy
Arcane Sanctum
39% of 102 decks +12% synergy
Sunken Hollow
38% of 563 decks +3% synergy
Canopy Vista
37% of 223 decks +1% synergy
Smoldering Marsh
37% of 557 decks +4% synergy
Evolving Wilds
36% of 2302 decks +15% synergy
Prairie Stream
34% of 102 decks +1% synergy
Savage Lands
34% of 161 decks +11% synergy
Nomad Outpost
34% of 123 decks +6% synergy
Cinder Glade
34% of 161 decks -5% synergy
Deceptive Landscape
33% of 61 decks +21% synergy
Golgari Rot Farm
31% of 1182 decks +13% synergy
Crumbling Necropolis
30% of 84 decks -1% synergy
Foreboding Landscape
29% of 73 decks +16% synergy
Jungle Hollow
28% of 1182 decks +19% synergy
Temple of Malady
27% of 1182 decks +11% synergy
Caves of Koilos
27% of 508 decks -1% synergy
Seething Landscape
27% of 22 decks +12% synergy
Woodland Cemetery
26% of 1182 decks -2% synergy
Dragonskull Summit
26% of 557 decks -5% synergy
Dismal Backwater
25% of 563 decks +18% synergy
Foreboding Ruins
25% of 557 decks +9% synergy
Choked Estuary
25% of 563 decks +8% synergy
Rakdos Carnarium
24% of 557 decks +10% synergy
Hinterland Harbor
24% of 243 decks -4% synergy
Dimir Aqueduct
24% of 563 decks +7% synergy
Orzhov Basilica
24% of 508 decks +8% synergy
Temple of Malice
24% of 557 decks +9% synergy
Thornwood Falls
23% of 243 decks +16% synergy
Terramorphic Expanse
23% of 2302 decks +8% synergy
Indatha Triome
23% of 223 decks -7% synergy
Bloodfell Caves
23% of 557 decks +16% synergy
Battlefield Forge
23% of 123 decks -3% synergy
Temple of Silence
23% of 508 decks +5% synergy
Temple of Deceit
22% of 563 decks +6% synergy
Myriad Landscape
22% of 2302 decks +3% synergy
Boros Garrison
22% of 123 decks +7% synergy
Llanowar Wastes
22% of 1182 decks -4% synergy
Port Town
22% of 102 decks +6% synergy
Exotic Orchard
21% of 2302 decks -15% synergy
Wind-Scarred Crag
20% of 123 decks +14% synergy
Scoured Barrens
20% of 508 decks +11% synergy
Contaminated Landscape
20% of 30 decks +8% synergy
Shattered Landscape
20% of 25 decks +7% synergy
Bountiful Promenade
20% of 223 decks -4% synergy
Isolated Chapel
19% of 508 decks -8% synergy
Temple of Mystery
19% of 243 decks +2% synergy