Entreat the Dead (Card)
Entreat the Dead
In 4833 decks
0.14% of 3348418 decks
Aminatou, the Fateshifter
16.82% of 6314 decks
1062 decks
Aminatou, Veil Piercer
2.05% of 11610 decks
238 decks
Sauron, Lord of the Rings
3.13% of 4055 decks
127 decks
Old Stickfingers
3.32% of 2984 decks
99 decks
Glarb, Calamity's Augur
0.73% of 13597 decks
99 decks
Omnath, Locus of All
0.68% of 13235 decks
90 decks
Varina, Lich Queen
0.77% of 9403 decks
72 decks
Zaxara, the Exemplary
0.42% of 15056 decks
63 decks
K'rrik, Son of Yawgmoth
0.38% of 16788 decks
63 decks
Iname, Death Aspect
7.15% of 713 decks
51 decks
Runo Stromkirk
1.02% of 4919 decks
50 decks
The Scarab God
0.41% of 11815 decks
49 decks
Wilhelt, the Rotcleaver
0.24% of 19972 decks
48 decks
Yennett, Cryptic Sovereign
1.01% of 4634 decks
47 decks
Sauron, the Dark Lord
0.15% of 27749 decks
41 decks
Kaalia of the Vast
0.14% of 28599 decks
40 decks
Meren of Clan Nel Toth
0.18% of 17919 decks
33 decks
Gisa and Geralf
0.46% of 5885 decks
27 decks
Chainer, Nightmare Adept
0.80% of 3231 decks
26 decks
Scion of the Ur-Dragon
0.68% of 3799 decks
26 decks
New Cards
Icetill Explorer
11% of 90 decks
+11% synergy
Starwinder
5% of 238 decks
+5% synergy
Infinite Guideline Station
5% of 20 decks
+5% synergy
Starfield Vocalist
5% of 268 decks
+5% synergy
Glacier Godmaw
5% of 83 decks
+5% synergy
High Synergy Cards
Terminus
56% of 2240 decks
+56% synergy
Entreat the Angels
52% of 2240 decks
+52% synergy
Swords to Plowshares
46% of 2240 decks
+46% synergy
Brainstorm
43% of 2904 decks
+43% synergy
Oath of Teferi
40% of 1816 decks
+40% synergy
Devastation Tide
40% of 2904 decks
+40% synergy
Soulherder
37% of 1816 decks
+37% synergy
Cultivate
36% of 1104 decks
+36% synergy
Faithless Looting
35% of 1181 decks
+34% synergy
Banishing Stroke
33% of 2240 decks
+33% synergy
Top Cards
Counterspell
33% of 2904 decks
+33% synergy
Temporal Mastery
32% of 2904 decks
+32% synergy
Blasphemous Act
31% of 1181 decks
+31% synergy
Cloudblazer
31% of 1816 decks
+31% synergy
Ponder
30% of 2904 decks
+30% synergy
Mulldrifter
30% of 2904 decks
+30% synergy
Rampant Growth
29% of 1104 decks
+28% synergy
Baleful Strix
28% of 2904 decks
+28% synergy
Farseek
27% of 1104 decks
+27% synergy
Path to Exile
27% of 2240 decks
+27% synergy
Game Changers
Smothering Tithe
16% of 2240 decks
+16% synergy
Rhystic Study
14% of 2904 decks
+14% synergy
Cyclonic Rift
13% of 2904 decks
+13% synergy
Demonic Tutor
11% of 4833 decks
+11% synergy
Teferi's Protection
11% of 2240 decks
+11% synergy
Mystical Tutor
11% of 2904 decks
+11% synergy
Vampiric Tutor
10% of 4833 decks
+10% synergy
Enlightened Tutor
9% of 2240 decks
+9% synergy
Bolas's Citadel
8% of 4833 decks
+8% synergy
Fierce Guardianship
6% of 2904 decks
+6% synergy
Creatures
Felidar Guardian
27% of 2240 decks
+27% synergy
Brago, King Eternal
26% of 1816 decks
+26% synergy
Anger
24% of 1181 decks
+24% synergy
Solemn Simulacrum
24% of 4833 decks
+24% synergy
Yorion, Sky Nomad
23% of 1816 decks
+22% synergy
Peregrine Drake
22% of 2904 decks
+22% synergy
Archaeomancer
22% of 2904 decks
+22% synergy
Yennett, Cryptic Sovereign
22% of 1816 decks
+22% synergy
Gray Merchant of Asphodel
20% of 4833 decks
+20% synergy
Metamorphosis Fanatic
20% of 2893 decks
+20% synergy
Eternal Witness
18% of 1104 decks
+18% synergy
Sakura-Tribe Elder
18% of 1104 decks
+18% synergy
Corpse Knight
18% of 2240 decks
+18% synergy
Hostage Taker
18% of 2904 decks
+18% synergy
Reflector Mage
17% of 1816 decks
+17% synergy
Sun Titan
17% of 2240 decks
+17% synergy
Spark Double
16% of 2904 decks
+16% synergy
Etali, Primal Storm
16% of 1181 decks
+16% synergy
Gisela, Blade of Goldnight
16% of 439 decks
+16% synergy
The Balrog of Moria
16% of 1181 decks
+15% synergy
Muldrotha, the Gravetide
16% of 598 decks
+15% synergy
Birds of Paradise
15% of 1104 decks
+15% synergy
Wall of Omens
15% of 2240 decks
+15% synergy
Ravenous Chupacabra
15% of 4833 decks
+14% synergy
Charming Prince
14% of 2240 decks
+14% synergy
Triumph of Saint Katherine
14% of 2240 decks
+14% synergy
Sister Repentia
14% of 2240 decks
+14% synergy
Sheoldred, Whispering One
14% of 4833 decks
+13% synergy
Zephyrim
14% of 2240 decks
+13% synergy
Restoration Angel
14% of 2240 decks
+13% synergy
Colossal Grave-Reaver
13% of 360 decks
+13% synergy
Aether Channeler
13% of 2904 decks
+13% synergy
Scourge of the Throne
13% of 1181 decks
+13% synergy
Agent of Treachery
13% of 2904 decks
+13% synergy
Moria Scavenger
13% of 1181 decks
+13% synergy
Chainer, Nightmare Adept
13% of 1181 decks
+13% synergy
Cavern-Hoard Dragon
13% of 1181 decks
+12% synergy
Massacre Wurm
12% of 4833 decks
+12% synergy
Loran of the Third Path
12% of 2240 decks
+12% synergy
Ignoble Hierarch
12% of 382 decks
+12% synergy
Enigma Sphinx
12% of 1816 decks
+12% synergy
Karmic Guide
12% of 2240 decks
+12% synergy
Llanowar Elves
12% of 1104 decks
+12% synergy
Magister Sphinx
12% of 1816 decks
+11% synergy
Miirym, Sentinel Wyrm
11% of 261 decks
+11% synergy
Aurelia, the Warleader
11% of 439 decks
+11% synergy
Flickerwisp
11% of 2240 decks
+11% synergy
Thassa, Deep-Dwelling
11% of 2904 decks
+11% synergy
Teneb, the Harvester
11% of 329 decks
+11% synergy
The Master of Keys
11% of 1053 decks
+11% synergy
Instants
Ephemerate
24% of 2240 decks
+24% synergy
Void Rend
23% of 1816 decks
+23% synergy
Thrill of Possibility
22% of 1181 decks
+22% synergy
Mortify
22% of 2240 decks
+21% synergy
Utter End
21% of 2240 decks
+21% synergy
Esper Charm
20% of 1816 decks
+20% synergy
Dark Ritual
19% of 4833 decks
+19% synergy
Dovin's Veto
19% of 1816 decks
+19% synergy
Eerie Interlude
19% of 2240 decks
+19% synergy
Chaos Warp
19% of 1181 decks
+19% synergy
Beast Within
18% of 1104 decks
+18% synergy
Arcane Denial
18% of 2904 decks
+18% synergy
Big Score
18% of 1181 decks
+18% synergy
Assassin's Trophy
17% of 1104 decks
+17% synergy
Putrefy
17% of 1104 decks
+17% synergy
Telling Time
16% of 2904 decks
+16% synergy
Anguished Unmaking
16% of 2240 decks
+16% synergy
Return to Dust
16% of 2240 decks
+16% synergy
Unexpected Windfall
15% of 1181 decks
+15% synergy
Terminate
14% of 1181 decks
+14% synergy
Bedevil
14% of 1181 decks
+14% synergy
Ghostly Flicker
13% of 2904 decks
+13% synergy
Frantic Search
13% of 2904 decks
+13% synergy
Vanishment
13% of 2904 decks
+13% synergy
Negate
12% of 2904 decks
+12% synergy
Crackling Doom
12% of 439 decks
+12% synergy
Growth Spiral
12% of 598 decks
+11% synergy
Rakdos Charm
11% of 1181 decks
+11% synergy
Heroic Intervention
11% of 1104 decks
+10% synergy
Despark
10% of 2240 decks
+10% synergy
Aethermage's Touch
10% of 1816 decks
+10% synergy
Momentary Blink
10% of 1816 decks
+10% synergy
Deathsprout
10% of 1104 decks
+9% synergy
Brainsurge
10% of 2145 decks
+9% synergy
Harrow
9% of 1104 decks
+9% synergy
Entomb
9% of 4833 decks
+9% synergy
Generous Gift
9% of 2240 decks
+9% synergy
An Offer You Can't Refuse
9% of 2904 decks
+9% synergy
Abzan Charm
9% of 329 decks
+8% synergy
Semester's End
8% of 2240 decks
+8% synergy
Grisly Salvage
8% of 1104 decks
+8% synergy
Predict
8% of 2904 decks
+8% synergy
Black Sun's Twilight
8% of 4833 decks
+8% synergy
Back for More
8% of 1104 decks
+8% synergy
Cloudshift
8% of 2240 decks
+8% synergy
Golgari Charm
8% of 1104 decks
+7% synergy
Boros Charm
8% of 439 decks
+7% synergy
Revitalizing Repast
7% of 811 decks
+7% synergy
Fell the Profane
7% of 3526 decks
+7% synergy
Village Rites
7% of 4833 decks
+7% synergy
Sorceries
Kodama's Reach
25% of 1104 decks
+25% synergy
Victimize
25% of 4833 decks
+24% synergy
Reanimate
23% of 4833 decks
+23% synergy
Redress Fate
22% of 1308 decks
+22% synergy
Villainous Wealth
21% of 598 decks
+21% synergy
Dread Return
20% of 4833 decks
+20% synergy
Portent
20% of 2904 decks
+19% synergy
Nature's Lore
18% of 1104 decks
+18% synergy
Cathartic Reunion
18% of 1181 decks
+17% synergy
Supreme Verdict
17% of 1816 decks
+17% synergy
Eerie Ultimatum
17% of 329 decks
+17% synergy
Ruinous Ultimatum
17% of 439 decks
+17% synergy
Aminatou's Augury
16% of 2904 decks
+16% synergy
Living Death
15% of 4833 decks
+15% synergy
Feed the Swarm
15% of 4833 decks
+15% synergy
Damn
14% of 2240 decks
+13% synergy
Persist
13% of 4833 decks
+13% synergy
Three Visits
13% of 1104 decks
+13% synergy
Life // Death
12% of 1104 decks
+12% synergy
Too Greedily, Too Deep
12% of 1181 decks
+12% synergy
Stitch Together
12% of 4833 decks
+12% synergy
Time Wipe
12% of 1816 decks
+12% synergy
Culling Ritual
12% of 1104 decks
+12% synergy
Akroma's Vengeance
12% of 2240 decks
+11% synergy
Rise of the Witch-king
11% of 1104 decks
+11% synergy
Buried Alive
11% of 4833 decks
+11% synergy
Dream Cache
10% of 2904 decks
+10% synergy
Toxic Deluge
10% of 4833 decks
+10% synergy
Vandalblast
10% of 1181 decks
+10% synergy
Diregraf Rebirth
10% of 1104 decks
+10% synergy
Reforge the Soul
10% of 1181 decks
+10% synergy
Farewell
9% of 2240 decks
+9% synergy
Diabolic Tutor
9% of 4833 decks
+9% synergy
Bonfire of the Damned
9% of 1181 decks
+9% synergy
Rise of the Dark Realms
9% of 4833 decks
+9% synergy
Gaze of Granite
9% of 1104 decks
+9% synergy
Preordain
8% of 2904 decks
+8% synergy
Unburial Rites
8% of 2240 decks
+8% synergy
Lavalanche
8% of 382 decks
+8% synergy
Finale of Eternity
8% of 4833 decks
+8% synergy
Army of the Damned
8% of 4833 decks
+8% synergy
Life from the Loam
8% of 1104 decks
+8% synergy
Exsanguinate
8% of 4833 decks
+8% synergy
Vigor Mortis
8% of 1104 decks
+8% synergy
Skyshroud Claim
7% of 1104 decks
+7% synergy
Damnation
7% of 4833 decks
+7% synergy
Sign in Blood
7% of 4833 decks
+7% synergy
Austere Command
7% of 2240 decks
+7% synergy
Agadeem's Awakening
7% of 4833 decks
+7% synergy
Bala Ged Recovery
7% of 1104 decks
+7% synergy
Utility Artifacts
Sensei's Divining Top
14% of 4833 decks
+14% synergy
Lightning Greaves
14% of 4833 decks
+14% synergy
Swiftfoot Boots
14% of 4833 decks
+14% synergy
Panharmonicon
13% of 4833 decks
+13% synergy
Wayfarer's Bauble
10% of 4833 decks
+10% synergy
Conduit of Worlds
10% of 1104 decks
+10% synergy
Hedge Shredder
9% of 681 decks
+9% synergy
Jet Medallion
8% of 4833 decks
+8% synergy
Wishclaw Talisman
7% of 4833 decks
+7% synergy
Ashnod's Altar
7% of 4833 decks
+7% synergy
Fist of Suns
7% of 246 decks
+6% synergy
Scroll Rack
6% of 4833 decks
+6% synergy
Conjurer's Closet
6% of 4833 decks
+6% synergy
Bontu's Monument
5% of 4833 decks
+5% synergy
Skullclamp
5% of 4833 decks
+5% synergy
Altar of the Brood
5% of 4833 decks
+5% synergy
Whip of Erebos
5% of 4833 decks
+5% synergy
Broodheart Engine
5% of 456 decks
+5% synergy
Enchantments
Leyline of the Guildpact
18% of 207 decks
+18% synergy
Animate Dead
18% of 4833 decks
+18% synergy
Teleportation Circle
14% of 2240 decks
+14% synergy
Phyrexian Arena
12% of 4833 decks
+12% synergy
Reality Acid
11% of 2904 decks
+11% synergy
Journey to Eternity
11% of 1104 decks
+11% synergy
Garruk's Uprising
11% of 1104 decks
+10% synergy
Deification
10% of 2240 decks
+10% synergy
Temur Ascendancy
10% of 261 decks
+10% synergy
Ghostly Prison
9% of 2240 decks
+9% synergy
Propaganda
9% of 2904 decks
+9% synergy
Secret Arcade // Dusty Parlor
9% of 1308 decks
+9% synergy
Sphere of Safety
9% of 2240 decks
+9% synergy
One with the Multiverse
9% of 2904 decks
+9% synergy
Virtue of Knowledge
8% of 2904 decks
+8% synergy
Mystic Remora
8% of 2904 decks
+8% synergy
Maelstrom Nexus
8% of 246 decks
+8% synergy
Call the Spirit Dragons
8% of 64 decks
+8% synergy
Sigil of the Empty Throne
8% of 2240 decks
+8% synergy
Sneak Attack
8% of 1181 decks
+7% synergy
Deadbridge Chant
7% of 1104 decks
+7% synergy
Omen of the Sea
7% of 2904 decks
+7% synergy
Primordial Mist
7% of 2904 decks
+7% synergy
Rhythm of the Wild
7% of 382 decks
+7% synergy
Exploration
7% of 1104 decks
+7% synergy
Sultai Ascendancy
7% of 598 decks
+7% synergy
Mirari's Wake
7% of 329 decks
+7% synergy
Annie Joins Up
7% of 201 decks
+7% synergy
Awaken the Honored Dead
7% of 223 decks
+7% synergy
Shark Typhoon
7% of 2904 decks
+7% synergy
Debtors' Knell
6% of 2240 decks
+6% synergy
Extravagant Replication
6% of 2904 decks
+6% synergy
Greater Good
6% of 1104 decks
+6% synergy
Rooftop Storm
6% of 2904 decks
+6% synergy
Riveteers Ascendancy
6% of 382 decks
+6% synergy
Rakdos Joins Up
6% of 905 decks
+6% synergy
Black Market
6% of 4833 decks
+6% synergy
Sylvan Library
6% of 1104 decks
+6% synergy
The Eldest Reborn
6% of 4833 decks
+6% synergy
Wild Growth
6% of 1104 decks
+6% synergy
Necromancy
6% of 4833 decks
+6% synergy
Warstorm Surge
6% of 1181 decks
+6% synergy
Act of Authority
6% of 2240 decks
+6% synergy
Starfield of Nyx
6% of 2240 decks
+6% synergy
Omniscience
6% of 2904 decks
+6% synergy
Moldervine Reclamation
6% of 1104 decks
+5% synergy
Leyline of Mutation
6% of 144 decks
+5% synergy
Glacierwood Siege
5% of 222 decks
+5% synergy
Oath of Kaya
5% of 2240 decks
+5% synergy
Bitter Reunion
5% of 1181 decks
+5% synergy
Planeswalkers
Dakkon, Shadow Slayer
15% of 1816 decks
+15% synergy
Venser, the Sojourner
14% of 1816 decks
+14% synergy
Aminatou, the Fateshifter
12% of 1816 decks
+12% synergy
The Eternal Wanderer
12% of 2240 decks
+12% synergy
Teferi, Time Raveler
7% of 1816 decks
+7% synergy
Jace, the Mind Sculptor
7% of 2904 decks
+6% synergy
Liliana, Death's Majesty
7% of 4833 decks
+6% synergy
Narset, Parter of Veils
5% of 2904 decks
+5% synergy
Sorin, Grim Nemesis
5% of 2240 decks
+5% synergy
Utility Lands
Bojuka Bog
28% of 4833 decks
+28% synergy
Halimar Depths
28% of 2904 decks
+28% synergy
Desolate Lighthouse
23% of 577 decks
+23% synergy
Reliquary Tower
22% of 4833 decks
+21% synergy
Mortuary Mire
19% of 4833 decks
+19% synergy
Mystic Sanctuary
15% of 2904 decks
+15% synergy
Urborg, Tomb of Yawgmoth
15% of 4833 decks
+15% synergy
Rogue's Passage
13% of 4833 decks
+13% synergy
New Benalia
13% of 2240 decks
+12% synergy
Cabal Coffers
12% of 4833 decks
+12% synergy
Hall of Heliod's Generosity
12% of 2240 decks
+11% synergy
Secluded Steppe
11% of 2240 decks
+11% synergy
Temple of the False God
10% of 4833 decks
+10% synergy
Barren Moor
10% of 4833 decks
+10% synergy
Lonely Sandbar
9% of 2904 decks
+9% synergy
Boseiju, Who Endures
8% of 1104 decks
+8% synergy
Takenuma, Abandoned Mire
8% of 4833 decks
+8% synergy
Forge of Heroes
8% of 4833 decks
+8% synergy
Witch's Cottage
8% of 4833 decks
+8% synergy
Kessig Wolf Run
7% of 382 decks
+7% synergy
Castle Vantress
7% of 2904 decks
+7% synergy
Otawara, Soaring City
7% of 2904 decks
+7% synergy
Isolated Watchtower
7% of 4833 decks
+7% synergy
Cabal Stronghold
7% of 4833 decks
+7% synergy
Mosswort Bridge
7% of 1104 decks
+6% synergy
Shifting Woodland
6% of 811 decks
+6% synergy
Geier Reach Sanitarium
6% of 4833 decks
+6% synergy
Grim Backwoods
5% of 1104 decks
+5% synergy
Nykthos, Shrine to Nyx
5% of 4833 decks
+5% synergy
Crypt of Agadeem
5% of 4833 decks
+5% synergy
Vault of the Archangel
5% of 2240 decks
+5% synergy
Mana Artifacts
Sol Ring
82% of 4833 decks
+82% synergy
Arcane Signet
64% of 4833 decks
+64% synergy
Azorius Signet
51% of 1816 decks
+51% synergy
Orzhov Signet
46% of 2240 decks
+46% synergy
Dimir Signet
45% of 2904 decks
+45% synergy
Rakdos Signet
36% of 1181 decks
+35% synergy
Relic of Sauron
30% of 577 decks
+30% synergy
Izzet Signet
28% of 577 decks
+28% synergy
Commander's Sphere
26% of 4833 decks
+26% synergy
Talisman of Dominance
25% of 2904 decks
+25% synergy
Mind Stone
23% of 4833 decks
+23% synergy
Talisman of Hierarchy
23% of 2240 decks
+23% synergy
Talisman of Progress
23% of 1816 decks
+23% synergy
Talisman of Indulgence
20% of 1181 decks
+20% synergy
Fellwar Stone
17% of 4833 decks
+17% synergy
Golgari Signet
15% of 1104 decks
+15% synergy
Boros Signet
15% of 439 decks
+15% synergy
Talisman of Creativity
12% of 577 decks
+12% synergy
Thought Vessel
11% of 4833 decks
+11% synergy
Talisman of Conviction
11% of 439 decks
+11% synergy
Talisman of Resilience
11% of 1104 decks
+11% synergy
Timeless Lotus
10% of 246 decks
+10% synergy
Chromatic Lantern
9% of 4833 decks
+9% synergy
Simic Signet
9% of 598 decks
+9% synergy
Charcoal Diamond
8% of 4833 decks
+7% synergy
Gruul Signet
7% of 382 decks
+7% synergy
Lands
Command Tower
73% of 4833 decks
+73% synergy
Arcane Sanctum
61% of 1816 decks
+61% synergy
Crumbling Necropolis
43% of 577 decks
+43% synergy
Smoldering Marsh
41% of 1181 decks
+41% synergy
Dragonskull Summit
39% of 1181 decks
+39% synergy
Sunken Hollow
39% of 2904 decks
+39% synergy
Hallowed Fountain
38% of 1816 decks
+37% synergy
Sulfur Falls
37% of 577 decks
+37% synergy
Godless Shrine
37% of 2240 decks
+36% synergy
Azorius Chancery
36% of 1816 decks
+35% synergy
Watery Grave
35% of 2904 decks
+35% synergy
Drowned Catacomb
34% of 2904 decks
+34% synergy
Dimir Aqueduct
34% of 2904 decks
+34% synergy
Orzhov Basilica
33% of 2240 decks
+33% synergy
Raffine's Tower
33% of 1816 decks
+33% synergy
Prairie Stream
32% of 1816 decks
+32% synergy
Temple of Enlightenment
32% of 1816 decks
+32% synergy
Zagoth Triome
31% of 598 decks
+31% synergy
Temple of Silence
31% of 2240 decks
+31% synergy
Isolated Chapel
31% of 2240 decks
+30% synergy
Overgrown Tomb
31% of 1104 decks
+30% synergy
Woodland Cemetery
30% of 1104 decks
+30% synergy
Glacial Fortress
30% of 1816 decks
+30% synergy
Opulent Palace
29% of 598 decks
+29% synergy
Caves of Koilos
29% of 2240 decks
+29% synergy
Temple of Deceit
29% of 2904 decks
+29% synergy
Breeding Pool
28% of 598 decks
+28% synergy
The World Tree
28% of 246 decks
+28% synergy
Exotic Orchard
28% of 4833 decks
+28% synergy
Indatha Triome
28% of 329 decks
+28% synergy
Blood Crypt
28% of 1181 decks
+28% synergy
Foreboding Ruins
27% of 1181 decks
+27% synergy
Savai Triome
27% of 439 decks
+27% synergy
Ziatora's Proving Ground
26% of 382 decks
+26% synergy
Temple Garden
26% of 329 decks
+25% synergy
Llanowar Wastes
25% of 1104 decks
+25% synergy
Golgari Rot Farm
25% of 1104 decks
+25% synergy
Frostboil Snarl
25% of 577 decks
+25% synergy
Sulfurous Springs
25% of 1181 decks
+25% synergy
Xander's Lounge
25% of 577 decks
+24% synergy
Underground River
24% of 2904 decks
+24% synergy
Sacred Foundry
24% of 439 decks
+24% synergy
Nomad Outpost
24% of 439 decks
+24% synergy
Sea of Clouds
24% of 1816 decks
+23% synergy
Ketria Triome
23% of 261 decks
+23% synergy
Evolving Wilds
23% of 4833 decks
+23% synergy
Stomping Ground
23% of 382 decks
+22% synergy
Temple of Malady
22% of 1104 decks
+22% synergy
Savage Lands
22% of 382 decks
+22% synergy
Spara's Headquarters
22% of 265 decks
+22% synergy