Belltower Sphinx (Card)
Belltower Sphinx
In 1049 decks
0% of 2367818 decks
The Mindskinner
1.76% of 2958 decks
52 decks
Top Commanders
Bruvac the Grandiloquent
4.87% of 5029 decks
245 decks
Phenax, God of Deception
1.36% of 6334 decks
86 decks
Unesh, Criosphinx Sovereign
4.92% of 1645 decks
81 decks
Yennett, Cryptic Sovereign
1.58% of 4170 decks
66 decks
Szadek, Lord of Secrets
15.21% of 217 decks
33 decks
Lord Xander, the Collector
1.06% of 3031 decks
32 decks
Mirko Vosk, Mind Drinker
2.61% of 958 decks
25 decks
Captain N'ghathrod
0.19% of 12513 decks
24 decks
The Wise Mothman
0.12% of 12479 decks
15 decks
Raffine, Scheming Seer
0.18% of 7729 decks
14 decks
Lazav, Dimir Mastermind
0.56% of 2152 decks
12 decks
Medomai the Ageless
2.21% of 453 decks
10 decks
Anowon, the Ruin Thief
0.15% of 6706 decks
10 decks
Saruman of Many Colors
0.26% of 3847 decks
10 decks
Eligeth, Crossroads Augur // Siani, Eye of the Storm
0.71% of 1263 decks
9 decks
Oona, Queen of the Fae
0.42% of 1884 decks
8 decks
Ambassador Laquatus
5.03% of 159 decks
8 decks
New Cards
Curator of Destinies
71% of 7 decks
+68% synergy
The Mindskinner
57% of 88 decks
+52% synergy
Kona, Rescue Beastie
50% of 6 decks
+42% synergy
Get Out
31% of 29 decks
+25% synergy
Sphinx of Forgotten Lore
31% of 13 decks
+28% synergy
High Synergy Cards
Magister Sphinx
63% of 124 decks
+61% synergy
Enigma Sphinx
57% of 124 decks
+56% synergy
Fractured Sanity
49% of 997 decks
+47% synergy
Ruin Crab
49% of 1010 decks
+46% synergy
Maddening Cacophony
44% of 1010 decks
+42% synergy
The Master, Transcendent
46% of 26 decks
+41% synergy
Cut Your Losses
41% of 954 decks
+40% synergy
Didn't Say Please
40% of 1020 decks
+39% synergy
Consuming Aberration
43% of 463 decks
+38% synergy
Fleet Swallower
38% of 1032 decks
+37% synergy
Top Cards
Counterspell
48% of 1049 decks
+5% synergy
Glowing One
38% of 39 decks
+37% synergy
Swords to Plowshares
38% of 183 decks
-25% synergy
Terisian Mindbreaker
38% of 831 decks
+37% synergy
Void Rend
37% of 116 decks
+22% synergy
Court of Cunning
35% of 1005 decks
+34% synergy
Mindcrank
35% of 1048 decks
+34% synergy
Cruel Somnophage
35% of 226 decks
+33% synergy
Psychic Corrosion
35% of 1028 decks
+33% synergy
Cultivate
35% of 75 decks
-12% synergy
Creatures
Raffine, Scheming Seer
33% of 116 decks
+31% synergy
Nemesis of Reason
33% of 466 decks
+31% synergy
Ethersworn Sphinx
32% of 175 decks
+31% synergy
Strong, the Brutish Thespian
31% of 39 decks
+30% synergy
Sphinx of the Steel Wind
31% of 124 decks
+30% synergy
Hedron Crab
30% of 1049 decks
+29% synergy
Spitemare
29% of 14 decks
+28% synergy
Medomai the Ageless
28% of 183 decks
+27% synergy
Deepmuck Desperado
27% of 259 decks
+27% synergy
Isperia, Supreme Judge
27% of 183 decks
+27% synergy
Duskmantle Guildmage
26% of 463 decks
+25% synergy
Syr Konrad, the Grim
26% of 446 decks
+17% synergy
Jelenn Sphinx
25% of 183 decks
+25% synergy
Dream Trawler
24% of 179 decks
+23% synergy
Zellix, Sanity Flayer
24% of 942 decks
+22% synergy
Sphinx Mindbreaker
24% of 1017 decks
+23% synergy
Azor, the Lawbringer
23% of 181 decks
+23% synergy
Neerdiv, Devious Diver
23% of 13 decks
+22% synergy
Sphinx Sovereign
23% of 124 decks
+22% synergy
Cormela, Glamour Thief
22% of 50 decks
+19% synergy
Bruvac the Grandiloquent
22% of 1011 decks
+20% synergy
Boros Reckoner
21% of 14 decks
+20% synergy
Isperia the Inscrutable
21% of 183 decks
+21% synergy
Manic Scribe
21% of 1038 decks
+20% synergy
Tato Farmer
21% of 39 decks
+19% synergy
Mirelurk Queen
20% of 285 decks
+19% synergy
Defiler of Dreams
20% of 901 decks
+19% synergy
Sharuum the Hegemon
20% of 124 decks
+18% synergy
Wall of Lost Thoughts
20% of 1024 decks
+20% synergy
Mirko Vosk, Mind Drinker
20% of 462 decks
+19% synergy
The Ancient One
20% of 174 decks
+18% synergy
Chancellor of the Spires
19% of 1048 decks
+19% synergy
Silent Hallcreeper
19% of 100 decks
+11% synergy
Dreamborn Muse
19% of 1049 decks
+18% synergy
Tivit, Seller of Secrets
19% of 116 decks
+17% synergy
Riddlekeeper
19% of 1048 decks
+19% synergy
Alpha Deathclaw
19% of 27 decks
+16% synergy
Sphinx of the Revelation
18% of 22 decks
+15% synergy
Jace's Phantasm
18% of 1046 decks
+18% synergy
Giggling Skitterspike
18% of 94 decks
+14% synergy
Windreader Sphinx
18% of 1042 decks
+17% synergy
Dazzling Sphinx
17% of 998 decks
+16% synergy
Overwhelmed Apprentice
16% of 1020 decks
+15% synergy
Kess, Dissident Mage
16% of 51 decks
+11% synergy
Shadow Kin
16% of 977 decks
+15% synergy
Consecrated Sphinx
15% of 1048 decks
+10% synergy
Lazav, Dimir Mastermind
15% of 463 decks
+14% synergy
Fog Bank
15% of 1049 decks
+14% synergy
Wight of Precinct Six
14% of 463 decks
+14% synergy
Jace's Mindseeker
14% of 1042 decks
+14% synergy
Instants
Atomize
35% of 26 decks
+28% synergy
Thought Collapse
31% of 1024 decks
+31% synergy
Thought Scour
28% of 1046 decks
+25% synergy
Path to Exile
26% of 183 decks
-19% synergy
Negate
26% of 1049 decks
+3% synergy
Putrefy
24% of 37 decks
+8% synergy
Archive Trap
23% of 1049 decks
+23% synergy
Drown in Dreams
23% of 977 decks
+21% synergy
Brainstorm
23% of 1049 decks
+1% synergy
Psychic Strike
22% of 463 decks
+21% synergy
Mortify
22% of 124 decks
+10% synergy
Boros Charm
21% of 14 decks
-4% synergy
Countermand
21% of 1042 decks
+20% synergy
Psychic Spiral
20% of 1046 decks
+19% synergy
Sphinx's Revelation
19% of 183 decks
+16% synergy
Grisly Spectacle
18% of 463 decks
+18% synergy
Aetherize
18% of 1046 decks
+12% synergy
Drown in the Loch
17% of 446 decks
+11% synergy
Cyclonic Rift
17% of 1046 decks
-11% synergy
Opt
16% of 1049 decks
+7% synergy
Don't Make a Sound
16% of 19 decks
+6% synergy
Esper Charm
15% of 124 decks
+13% synergy
Anguished Unmaking
15% of 124 decks
-9% synergy
Dovin's Veto
15% of 180 decks
-4% synergy
High Tide
15% of 1049 decks
+11% synergy
Heroic Intervention
15% of 74 decks
-15% synergy
Beast Within
15% of 75 decks
-24% synergy
Teferi's Protection
14% of 181 decks
-6% synergy
Generous Gift
13% of 179 decks
-12% synergy
Arcane Denial
13% of 1049 decks
-6% synergy
Brain Freeze
13% of 1049 decks
+10% synergy
Induce Paranoia
13% of 466 decks
+13% synergy
Growth Spiral
12% of 74 decks
-10% synergy
Obscura Charm
12% of 116 decks
+10% synergy
Chaos Warp
12% of 76 decks
-20% synergy
Terminate
12% of 51 decks
-9% synergy
Dream Twist
12% of 1046 decks
+12% synergy
Murder
12% of 463 decks
+8% synergy
Flare of Fortitude
12% of 26 decks
+5% synergy
Render Silent
11% of 183 decks
+9% synergy
Visions of Beyond
11% of 1046 decks
+11% synergy
Pongify
11% of 1049 decks
-0% synergy
Another Chance
11% of 165 decks
+10% synergy
Sultai Charm
11% of 37 decks
+6% synergy
Dark Ritual
11% of 466 decks
-12% synergy
Lightning Bolt
11% of 76 decks
-0% synergy
Mana Drain
10% of 1049 decks
-5% synergy
Rakdos Charm
10% of 51 decks
-5% synergy
Unseal the Necropolis
10% of 263 decks
+9% synergy
Mystical Tutor
9% of 1049 decks
-6% synergy
Sorceries
Traumatize
33% of 1049 decks
+32% synergy
Breach the Multiverse
32% of 294 decks
+27% synergy
Breaking // Entering
27% of 51 decks
+27% synergy
Glimpse the Unthinkable
27% of 466 decks
+25% synergy
Rampant Growth
25% of 75 decks
-9% synergy
Mind Sculpt
25% of 1046 decks
+25% synergy
Farseek
24% of 75 decks
-10% synergy
Inspiration from Beyond
23% of 13 decks
+21% synergy
Tasha's Hideous Laughter
23% of 992 decks
+22% synergy
Enter the Enigma
22% of 41 decks
+13% synergy
Mind Grind
21% of 463 decks
+19% synergy
Extract from Darkness
20% of 460 decks
+18% synergy
Tome Scour
19% of 1049 decks
+19% synergy
Brilliant Ultimatum
19% of 124 decks
+18% synergy
Time Wipe
18% of 180 decks
+11% synergy
Dreadwaters
18% of 1046 decks
+18% synergy
Nuclear Fallout
18% of 119 decks
+15% synergy
Cruel Ultimatum
18% of 51 decks
+14% synergy
Bond of Insight
17% of 1023 decks
+17% synergy
Sorcerous Squall
16% of 449 decks
+16% synergy
Increasing Confusion
16% of 1046 decks
+15% synergy
Startled Awake
15% of 1038 decks
+15% synergy
Mind Funeral
15% of 466 decks
+14% synergy
Kodama's Reach
15% of 75 decks
-17% synergy
Blasphemous Act
14% of 76 decks
-19% synergy
Pilfered Plans
14% of 462 decks
+14% synergy
Supreme Verdict
14% of 183 decks
+0% synergy
Psychic Drain
14% of 466 decks
+14% synergy
Approach of the Second Sun
14% of 183 decks
+10% synergy
Casualties of War
14% of 37 decks
+9% synergy
Villainous Wealth
14% of 37 decks
+5% synergy
Paranoid Delusions
13% of 463 decks
+13% synergy
Book Burning
13% of 76 decks
+13% synergy
Compelling Argument
13% of 1036 decks
+13% synergy
Ponder
13% of 1049 decks
-0% synergy
Diabolic Tutor
13% of 466 decks
+6% synergy
Vindicate
12% of 124 decks
+5% synergy
In Garruk's Wake
12% of 460 decks
+8% synergy
Preordain
11% of 1049 decks
+0% synergy
Farewell
11% of 169 decks
-2% synergy
Windfall
11% of 1049 decks
-2% synergy
Nature's Lore
11% of 75 decks
-21% synergy
Coiling Rebirth
11% of 47 decks
+7% synergy
Coerced Confession
11% of 463 decks
+11% synergy
Fascination
10% of 1041 decks
+10% synergy
Demonic Tutor
10% of 466 decks
-13% synergy
Three Visits
9% of 75 decks
-15% synergy
Rise of the Dark Realms
9% of 461 decks
+6% synergy
Austere Command
9% of 183 decks
-4% synergy
Dread Summons
9% of 458 decks
+8% synergy
Utility Artifacts
Swiftfoot Boots
22% of 1046 decks
-6% synergy
Keening Stone
21% of 1049 decks
+21% synergy
Mesmeric Orb
19% of 1049 decks
+17% synergy
Altar of the Brood
19% of 1041 decks
+17% synergy
Folio of Fancies
18% of 1020 decks
+16% synergy
Sapphire Medallion
18% of 1049 decks
+15% synergy
Lightning Greaves
16% of 1049 decks
-9% synergy
Realmbreaker, the Invasion Tree
16% of 638 decks
+15% synergy
Codex Shredder
14% of 1046 decks
+13% synergy
Millstone
13% of 1049 decks
+13% synergy
Kefnet's Monument
11% of 1036 decks
+10% synergy
Power Fist
10% of 39 decks
+7% synergy
Grindclock
9% of 1049 decks
+9% synergy
Grindstone
9% of 1049 decks
+9% synergy
Sands of Delirium
9% of 1046 decks
+9% synergy
Wayfarer's Bauble
8% of 1049 decks
-2% synergy
Conduit of Worlds
8% of 63 decks
+1% synergy
Altar of Dementia
8% of 1049 decks
+5% synergy
Tormod's Crypt
7% of 1049 decks
+6% synergy
Trepanation Blade
7% of 1046 decks
+6% synergy
Herald's Horn
6% of 1032 decks
+0% synergy
Elixir of Immortality
6% of 1049 decks
+5% synergy
Mjölnir, Storm Hammer
6% of 159 decks
+5% synergy
Sword of Body and Mind
6% of 1049 decks
+5% synergy
Bonehoard
6% of 1048 decks
+5% synergy
Whispersilk Cloak
6% of 1049 decks
+2% synergy
The Great Henge
5% of 73 decks
-4% synergy
Blazing Sunsteel
5% of 74 decks
+5% synergy
Urza's Incubator
5% of 1049 decks
+2% synergy
Nuka-Nuke Launcher
5% of 285 decks
+5% synergy
Enchantments
Sphinx's Tutelage
33% of 1041 decks
+32% synergy
Memory Erosion
32% of 1049 decks
+31% synergy
Teferi's Tutelage
31% of 1012 decks
+31% synergy
Fraying Sanity
30% of 1036 decks
+29% synergy
Drowned Secrets
30% of 1026 decks
+29% synergy
Propaganda
26% of 1049 decks
+14% synergy
Ghostly Prison
23% of 183 decks
+12% synergy
Jace's Erasure
21% of 1049 decks
+21% synergy
Patient Rebuilding
19% of 1028 decks
+19% synergy
Smothering Tithe
19% of 180 decks
-6% synergy
Curse of the Bloody Tome
17% of 1046 decks
+17% synergy
Rhystic Study
17% of 1049 decks
-11% synergy
Debtors' Knell
12% of 124 decks
+11% synergy
Dog Umbra
12% of 26 decks
+11% synergy
Wizard Class
11% of 992 decks
+7% synergy
Deadbridge Chant
11% of 37 decks
+8% synergy
Chronic Flooding
10% of 1046 decks
+10% synergy
Unable to Scream
10% of 88 decks
+6% synergy
Struggle for Project Purity
10% of 285 decks
+7% synergy
Branching Evolution
8% of 73 decks
+3% synergy
Hardened Scales
8% of 74 decks
-1% synergy
Double Vision
8% of 75 decks
+6% synergy
Bloodchief Ascension
8% of 466 decks
+4% synergy
Virtue of Persistence
7% of 205 decks
+4% synergy
Imprisoned in the Moon
7% of 1036 decks
+3% synergy
Founding the Third Path
7% of 901 decks
+7% synergy
Reflections of Littjara
7% of 1001 decks
+2% synergy
Eaten by Piranhas
7% of 370 decks
+5% synergy
Vault 12: The Necropolis
7% of 118 decks
+6% synergy
Guardian Project
7% of 74 decks
-2% synergy
Disturbing Conversion
7% of 579 decks
+7% synergy
Phyrexian Arena
7% of 466 decks
-8% synergy
Land Tax
7% of 183 decks
-0% synergy
Aqueous Form
6% of 1042 decks
+2% synergy
Penance
6% of 183 decks
+6% synergy
Leyline of the Void
6% of 466 decks
+5% synergy
Teferi's Ageless Insight
6% of 1012 decks
+1% synergy
Sorcerer Class
6% of 72 decks
+3% synergy
Garruk's Uprising
5% of 73 decks
-10% synergy
Pacifism
5% of 183 decks
+5% synergy
Khalni Heart Expedition
5% of 75 decks
+3% synergy
Utopia Sprawl
5% of 75 decks
-2% synergy
Fevered Visions
5% of 76 decks
+3% synergy
Thousand-Year Storm
5% of 76 decks
+1% synergy
Mystic Remora
5% of 1049 decks
-13% synergy
Battles
Invasion of Amonkhet
7% of 266 decks
+6% synergy
Planeswalkers
Jace, the Perfected Mind
28% of 734 decks
+27% synergy
Jace, Memory Adept
24% of 1046 decks
+23% synergy
Aminatou, the Fateshifter
20% of 122 decks
+17% synergy
Ashiok, Dream Render
17% of 447 decks
+13% synergy
Jace Beleren
14% of 1049 decks
+13% synergy
Ashiok, Sculptor of Fears
14% of 444 decks
+14% synergy
Jace, Wielder of Mysteries
14% of 1023 decks
+11% synergy
Dakkon, Shadow Slayer
6% of 120 decks
+4% synergy
Utility Lands
Reliquary Tower
38% of 1049 decks
+9% synergy
Mystic Sanctuary
22% of 1020 decks
+10% synergy
Bojuka Bog
22% of 466 decks
-8% synergy
Nephalia Drownyard
21% of 463 decks
+18% synergy
Restless Reef
19% of 179 decks
+15% synergy
Duskmantle, House of Shadow
15% of 466 decks
+14% synergy
Rogue's Passage
14% of 1046 decks
-5% synergy
Temple of the False God
12% of 1049 decks
+3% synergy
Castle Vantress
11% of 1020 decks
+7% synergy
Halimar Depths
11% of 1049 decks
+8% synergy
Restless Fortress
10% of 58 decks
+7% synergy
Mortuary Mire
10% of 460 decks
+5% synergy
Rivendell
9% of 558 decks
+3% synergy
Otawara, Soaring City
8% of 962 decks
-9% synergy
Lonely Sandbar
8% of 1049 decks
+4% synergy
Vault of the Archangel
7% of 124 decks
-4% synergy
Ipnu Rivulet
7% of 1036 decks
+7% synergy
Boseiju, Who Endures
7% of 72 decks
-13% synergy
Nykthos, Shrine to Nyx
7% of 1042 decks
+1% synergy
Desolate Lighthouse
7% of 76 decks
+3% synergy
Sunken Palace
6% of 174 decks
+5% synergy
Restless Vinestalk
6% of 49 decks
+3% synergy
Academy Ruins
6% of 1049 decks
+1% synergy
Scavenger Grounds
6% of 1036 decks
+2% synergy
Creeping Tar Pit
6% of 466 decks
+3% synergy
Mana Artifacts
Sol Ring
72% of 1049 decks
-12% synergy
Arcane Signet
51% of 1020 decks
-21% synergy
Boros Signet
36% of 14 decks
+12% synergy
Dimir Signet
31% of 466 decks
+1% synergy
Azorius Signet
28% of 183 decks
+2% synergy
Thought Vessel
26% of 1038 decks
+9% synergy
Selesnya Signet
23% of 13 decks
+14% synergy
Izzet Signet
21% of 76 decks
-7% synergy
Commander's Sphere
21% of 1041 decks
+5% synergy
Rakdos Signet
20% of 51 decks
-10% synergy
Simic Signet
19% of 75 decks
+4% synergy
Orzhov Signet
18% of 124 decks
-9% synergy
Mind Stone
17% of 1049 decks
-0% synergy
Sky Diamond
16% of 1049 decks
+11% synergy
Talisman of Dominance
14% of 466 decks
-17% synergy
Golgari Signet
14% of 37 decks
+1% synergy
Decanter of Endless Water
12% of 942 decks
+7% synergy
Talisman of Creativity
12% of 76 decks
-17% synergy
Midnight Clock
11% of 1020 decks
+6% synergy
Fellwar Stone
10% of 1049 decks
-11% synergy
Talisman of Progress
10% of 183 decks
-13% synergy
Obelisk of Grixis
10% of 51 decks
+9% synergy
Obelisk of Esper
10% of 124 decks
+9% synergy
Relic of Sauron
10% of 31 decks
-2% synergy
Dimir Locket
9% of 448 decks
+8% synergy
Izzet Cluestone
9% of 76 decks
+9% synergy
Gilded Lotus
9% of 1049 decks
+5% synergy
Talisman of Hierarchy
7% of 122 decks
-17% synergy
Dimir Keyrune
7% of 463 decks
+6% synergy
Talisman of Curiosity
7% of 73 decks
-5% synergy
Azorius Locket
7% of 180 decks
+6% synergy
Throne of Eldraine
7% of 465 decks
+4% synergy
Thran Dynamo
7% of 1049 decks
+2% synergy
Dimir Cluestone
6% of 462 decks
+5% synergy
Cursed Mirror
6% of 72 decks
+0% synergy
Chromatic Lantern
6% of 1046 decks
-4% synergy
Caged Sun
6% of 1048 decks
+3% synergy
Nyx Lotus
5% of 1017 decks
+4% synergy
Hedron Archive
5% of 1040 decks
+2% synergy
Izzet Locket
5% of 76 decks
+4% synergy
Lands
Arcane Sanctum
53% of 124 decks
+25% synergy
Jetmir's Garden
50% of 8 decks
+17% synergy
Crumbling Necropolis
45% of 51 decks
+14% synergy
Raffine's Tower
42% of 116 decks
+14% synergy
Opulent Palace
41% of 37 decks
+14% synergy
Dimir Aqueduct
39% of 466 decks
+22% synergy
Spara's Headquarters
38% of 13 decks
+6% synergy
Command Tower
38% of 1048 decks
-36% synergy
Indatha Triome
38% of 8 decks
+6% synergy
Ziatora's Proving Ground
38% of 8 decks
+5% synergy
Hinterland Harbor
35% of 75 decks
+8% synergy
Jagged Barrens
33% of 15 decks
+29% synergy
Azorius Chancery
33% of 183 decks
+18% synergy
Bloodfell Caves
31% of 51 decks
+25% synergy
Prairie Stream
31% of 183 decks
-2% synergy
Sunken Hollow
31% of 460 decks
-4% synergy
Ketria Triome
31% of 13 decks
-2% synergy
Temple Garden
31% of 13 decks
-10% synergy
Temple of Enlightenment
31% of 183 decks
+14% synergy
Contaminated Landscape
29% of 17 decks
+16% synergy
Dismal Backwater
29% of 460 decks
+22% synergy
Temple of Deceit
28% of 461 decks
+12% synergy
Swiftwater Cliffs
28% of 76 decks
+21% synergy
Woodland Cemetery
27% of 37 decks
-1% synergy
Simic Growth Chamber
27% of 75 decks
+7% synergy
Temple of Mystery
26% of 74 decks
+8% synergy
Overflowing Basin
26% of 39 decks
+15% synergy
Drowned Catacomb
25% of 466 decks
-0% synergy
Izzet Boilerworks
25% of 76 decks
+9% synergy
Temple of Malady
24% of 37 decks
+8% synergy
Godless Shrine
24% of 124 decks
-17% synergy
Hallowed Fountain
24% of 183 decks
-17% synergy
Temple of Silence
23% of 124 decks
+5% synergy
Gruul Guildgate
23% of 13 decks
+19% synergy
Selesnya Sanctuary
23% of 13 decks
+9% synergy
Bountiful Promenade
23% of 13 decks
-1% synergy
Seaside Citadel
23% of 13 decks
-3% synergy
Stomping Ground
23% of 13 decks
-18% synergy
Tranquil Cove
23% of 183 decks
+16% synergy
Temple of Epiphany
22% of 76 decks
+4% synergy
Sea of Clouds
22% of 181 decks
-4% synergy
Xander's Lounge
22% of 50 decks
-6% synergy
Glacial Fortress
22% of 183 decks
-3% synergy
Zagoth Triome
22% of 37 decks
-9% synergy
Rakdos Carnarium
22% of 51 decks
+7% synergy
Deserted Beach
22% of 172 decks
+5% synergy
Mystic Monastery
21% of 14 decks
-5% synergy
Sacred Foundry
21% of 14 decks
-15% synergy
Breeding Pool
21% of 75 decks
-20% synergy
Watery Grave
21% of 466 decks
-20% synergy