Fool's Tome (Card)
Fool's Tome
In 218 decks
0% of 5745666 decks
Top Commanders
Flubs, the Fool
0.67% of 12000 decks
80 decks
Codie, Vociferous Codex
0.19% of 5933 decks
11 decks
Eruth, Tormented Prophet
0.34% of 1761 decks
6 decks
Malfegor
0.98% of 615 decks
6 decks
Hazoret the Fervent
0.85% of 468 decks
4 decks
Asmoranomardicadaistinaculdacar
0.08% of 3866 decks
3 decks
Garth One-Eye
0.07% of 4356 decks
3 decks
Bello, Bard of the Brambles
0.02% of 12248 decks
3 decks
Squee, the Immortal
0.47% of 644 decks
3 decks
Krenko, Mob Boss
0.01% of 27069 decks
3 decks
Vhati il-Dal
0.80% of 375 decks
3 decks
Selenia, Dark Angel
0.27% of 740 decks
2 decks
Azami, Lady of Scrolls
0.05% of 3924 decks
2 decks
Alesha, Who Smiles at Death
0.03% of 6111 decks
2 decks
Kenrith, the Returned King
0.01% of 23913 decks
2 decks
Damia, Sage of Stone
0.03% of 3102 decks
1 decks
Soraya the Falconer
0.19% of 524 decks
1 decks
Chainer, Nightmare Adept
0.03% of 3221 decks
1 decks
New Cards
Sazh's Chocobo
6% of 18 decks
+5% synergy
High Synergy Cards
Song of Creation
56% of 101 decks
+54% synergy
Tomebound Lich
32% of 28 decks
+32% synergy
Anthem of Rakdos
26% of 46 decks
+26% synergy
Idle Thoughts
26% of 133 decks
+26% synergy
Fblthp, Lost on the Range
25% of 115 decks
+24% synergy
Nihilistic Glee
24% of 67 decks
+24% synergy
Azusa, Lost but Seeking
31% of 118 decks
+24% synergy
Blood Scrivener
24% of 67 decks
+24% synergy
The Book of Exalted Deeds
24% of 46 decks
+23% synergy
Eruth, Tormented Prophet
23% of 115 decks
+23% synergy
Top Cards
Ramunap Excavator
28% of 118 decks
+21% synergy
Exploration
27% of 118 decks
+19% synergy
Chaos Warp
27% of 173 decks
-5% synergy
Doc Aurlock, Grizzled Genius
25% of 93 decks
+21% synergy
Lotus Cobra
25% of 118 decks
+17% synergy
Faithless Looting
24% of 173 decks
+8% synergy
Case of the Locked Hothouse
24% of 108 decks
+21% synergy
Conduit of Worlds
24% of 118 decks
+18% synergy
Six
23% of 103 decks
+18% synergy
Ghirapur Orrery
23% of 218 decks
+22% synergy
Game Changers
Enlightened Tutor
9% of 46 decks
-8% synergy
Jeska's Will
8% of 173 decks
-9% synergy
Underworld Breach
8% of 173 decks
+2% synergy
Demonic Tutor
7% of 67 decks
-14% synergy
Ancient Tomb
6% of 218 decks
-4% synergy
Cyclonic Rift
6% of 133 decks
-20% synergy
Tergrid, God of Fright
6% of 67 decks
+4% synergy
Vampiric Tutor
6% of 67 decks
-11% synergy
Mystical Tutor
5% of 133 decks
-9% synergy
Creatures
Walking Archive
22% of 27 decks
+22% synergy
Surly Badgersaur
22% of 173 decks
+21% synergy
Prosper, Tome-Bound
22% of 46 decks
+19% synergy
Basking Rootwalla
21% of 118 decks
+21% synergy
Dryad of the Ilysian Grove
21% of 118 decks
+13% synergy
Containment Construct
20% of 218 decks
+19% synergy
Oracle of Mul Daya
19% of 118 decks
+14% synergy
Scute Swarm
19% of 118 decks
+10% synergy
Asylum Visitor
19% of 67 decks
+19% synergy
Big Game Hunter
19% of 67 decks
+18% synergy
Tireless Provisioner
19% of 118 decks
+8% synergy
Laboratory Maniac
18% of 133 decks
+14% synergy
Hollowborn Barghest
18% of 67 decks
+18% synergy
Bloodhall Priest
17% of 46 decks
+17% synergy
Loot, the Key to Everything
16% of 92 decks
+15% synergy
Anger
16% of 173 decks
+10% synergy
Glint-Horn Buccaneer
16% of 173 decks
+14% synergy
Savvy Trader
15% of 104 decks
+14% synergy
Jagged Poppet
15% of 46 decks
+15% synergy
Sire of Insanity
15% of 46 decks
+14% synergy
Chainer, Nightmare Adept
15% of 46 decks
+10% synergy
Blazing Rootwalla
15% of 173 decks
+15% synergy
Hugs, Grisly Guardian
15% of 96 decks
+13% synergy
Avenger of Zendikar
14% of 118 decks
+5% synergy
Spellbook Vendor
14% of 42 decks
+14% synergy
Conspiracy Theorist
14% of 173 decks
+13% synergy
Necrogoyf
13% of 67 decks
+12% synergy
Anje's Ravager
13% of 173 decks
+13% synergy
Omnath, Locus of Rage
13% of 107 decks
+8% synergy
Gobhobbler Rats
13% of 46 decks
+13% synergy
Wonder
13% of 133 decks
+10% synergy
Tatyova, Benthic Druid
13% of 103 decks
+0% synergy
Ragamuffyn
12% of 67 decks
+12% synergy
Bone Miser
12% of 67 decks
+10% synergy
Archfiend of Ifnir
12% of 67 decks
+10% synergy
Suspicious Bookcase
12% of 218 decks
+12% synergy
Courser of Kruphix
12% of 118 decks
+8% synergy
Wayward Swordtooth
12% of 118 decks
+8% synergy
Avaricious Dragon
12% of 173 decks
+11% synergy
Inti, Seneschal of the Sun
11% of 149 decks
+10% synergy
Tome Anima
11% of 133 decks
+11% synergy
Epistolary Librarian
11% of 27 decks
+11% synergy
Perennial Behemoth
11% of 118 decks
+10% synergy
Beanstalk Giant
11% of 118 decks
+9% synergy
Rampaging Baloths
11% of 118 decks
+4% synergy
Eternal Witness
11% of 118 decks
-9% synergy
Birds of Paradise
11% of 118 decks
-16% synergy
Sun Titan
11% of 46 decks
+1% synergy
Party Thrasher
11% of 130 decks
+9% synergy
Insidious Bookworms
10% of 67 decks
+10% synergy
Instants
Waterlogged Teachings
29% of 14 decks
+24% synergy
Tragic Fall
21% of 67 decks
+21% synergy
Ancient Grudge
20% of 107 decks
+19% synergy
Twinstrike
20% of 46 decks
+20% synergy
Dark Ritual
19% of 67 decks
-3% synergy
Growth Spiral
18% of 103 decks
-3% synergy
Beast Within
17% of 118 decks
-20% synergy
Just the Wind
17% of 133 decks
+16% synergy
Bury in Books
16% of 133 decks
+16% synergy
Circular Logic
16% of 133 decks
+15% synergy
Disenchant
15% of 46 decks
+12% synergy
Saw It Coming
14% of 133 decks
+13% synergy
Obsessive Search
14% of 133 decks
+13% synergy
Frantic Search
14% of 133 decks
+1% synergy
Brainstorm
14% of 133 decks
-6% synergy
One with Nothing
13% of 67 decks
+13% synergy
Dark Withering
12% of 67 decks
+12% synergy
Fiery Temper
11% of 173 decks
+11% synergy
Bedevil
11% of 46 decks
-3% synergy
Terminate
11% of 46 decks
-9% synergy
Swords to Plowshares
11% of 46 decks
-52% synergy
Pongify
11% of 133 decks
-1% synergy
Lightning Bolt
10% of 173 decks
-1% synergy
Rapid Hybridization
9% of 133 decks
-0% synergy
Path to Exile
9% of 46 decks
-38% synergy
Cackling Flames
8% of 173 decks
+8% synergy
Noxious Revival
8% of 118 decks
+2% synergy
Abrade
8% of 173 decks
-4% synergy
Diabolic Edict
7% of 67 decks
+7% synergy
Sink into Stupor
7% of 111 decks
-2% synergy
Thrill of Possibility
7% of 173 decks
-3% synergy
Snap
7% of 133 decks
-0% synergy
Counterspell
7% of 133 decks
-36% synergy
Surge of Brilliance
7% of 122 decks
+6% synergy
Scrollshift
7% of 46 decks
+6% synergy
Rakdos Charm
7% of 46 decks
-8% synergy
Generous Gift
7% of 46 decks
-18% synergy
Peerless Recycling
6% of 99 decks
+4% synergy
Archive Trap
6% of 133 decks
+6% synergy
Moment's Peace
6% of 118 decks
+5% synergy
Reclaim
6% of 118 decks
+5% synergy
Dangerous Wager
6% of 173 decks
+6% synergy
Big Score
6% of 173 decks
-3% synergy
Quick Study
5% of 129 decks
+4% synergy
Otherworldly Gaze
5% of 133 decks
+4% synergy
Arcane Denial
5% of 133 decks
-15% synergy
Ignorant Bliss
5% of 173 decks
+5% synergy
Pyretic Ritual
5% of 173 decks
+3% synergy
Seething Song
5% of 173 decks
-1% synergy
Weather the Storm
5% of 118 decks
+5% synergy
Sorceries
Infernal Tutor
22% of 67 decks
+22% synergy
Farseek
19% of 118 decks
-16% synergy
Blasphemous Act
18% of 173 decks
-15% synergy
Nature's Lore
15% of 118 decks
-16% synergy
Rampant Growth
15% of 118 decks
-19% synergy
Feed the Swarm
15% of 67 decks
-3% synergy
Demonfire
14% of 173 decks
+14% synergy
Cultivate
14% of 118 decks
-31% synergy
Library of Lat-Nam
14% of 133 decks
+14% synergy
Escape to the Wilds
13% of 107 decks
+10% synergy
Three Visits
13% of 118 decks
-12% synergy
Plan the Heist
12% of 113 decks
+11% synergy
Kodama's Reach
11% of 118 decks
-19% synergy
Terminal Agony
11% of 46 decks
+10% synergy
Call to the Netherworld
10% of 67 decks
+10% synergy
Bala Ged Recovery
10% of 118 decks
+2% synergy
Avacyn's Judgment
10% of 173 decks
+10% synergy
Windfall
10% of 133 decks
-3% synergy
Land Grant
9% of 118 decks
+9% synergy
Summer Bloom
9% of 118 decks
+8% synergy
Nagging Thoughts
9% of 133 decks
+9% synergy
Living Death
9% of 67 decks
+4% synergy
Read the Bones
9% of 67 decks
+2% synergy
Reanimate
9% of 67 decks
-8% synergy
Croaking Counterpart
9% of 103 decks
+7% synergy
Make Your Own Luck
9% of 93 decks
+8% synergy
Merchant Scroll
8% of 133 decks
+7% synergy
Deep Analysis
8% of 133 decks
+6% synergy
Ravenform
8% of 133 decks
+6% synergy
Explore
8% of 118 decks
-2% synergy
Careful Study
8% of 133 decks
+6% synergy
Disturbed Burial
7% of 67 decks
+7% synergy
Dregs of Sorrow
7% of 67 decks
+7% synergy
Sign in Blood
7% of 67 decks
-2% synergy
Gamble
7% of 173 decks
-3% synergy
Vandalblast
7% of 173 decks
-9% synergy
Chatterstorm
7% of 118 decks
+6% synergy
Splendid Reclamation
7% of 118 decks
+3% synergy
Life from the Loam
7% of 118 decks
+3% synergy
Welcome to the Fold
7% of 133 decks
+7% synergy
Cataclysm
7% of 46 decks
+6% synergy
Fell the Mighty
7% of 46 decks
+4% synergy
Wrath of God
7% of 46 decks
+0% synergy
Past in Flames
6% of 173 decks
+4% synergy
Wheel of Fortune
6% of 173 decks
+2% synergy
Step Between Worlds
6% of 113 decks
+6% synergy
Tome Scour
6% of 133 decks
+6% synergy
Breakthrough
6% of 133 decks
+6% synergy
Evincar's Justice
6% of 67 decks
+6% synergy
Rain of Tears
6% of 67 decks
+6% synergy
Utility Artifacts
The Book of Vile Darkness
22% of 67 decks
+22% synergy
Mysterious Tome
20% of 133 decks
+20% synergy
Wizard's Spellbook
19% of 133 decks
+18% synergy
Emmessi Tome
17% of 218 decks
+17% synergy
Library of Leng
17% of 218 decks
+17% synergy
Jalum Tome
17% of 218 decks
+17% synergy
Null Brooch
17% of 218 decks
+17% synergy
Crucible of Worlds
17% of 218 decks
+15% synergy
Tamiyo's Logbook
17% of 133 decks
+16% synergy
Book of Rass
17% of 218 decks
+16% synergy
Jayemdae Tome
16% of 218 decks
+16% synergy
Mind Stone
16% of 218 decks
-1% synergy
Mindstorm Crown
15% of 218 decks
+15% synergy
The Underworld Cookbook
15% of 218 decks
+15% synergy
Tarrian's Journal
15% of 54 decks
+14% synergy
Mazemind Tome
15% of 218 decks
+14% synergy
Thran Tome
14% of 218 decks
+14% synergy
Tome of Legends
14% of 218 decks
+13% synergy
Spellbook
14% of 218 decks
+13% synergy
Mangara's Tome
13% of 218 decks
+13% synergy
Urza's Tome
13% of 218 decks
+13% synergy
Arcane Encyclopedia
13% of 218 decks
+13% synergy
Ensnaring Bridge
11% of 218 decks
+11% synergy
Bag of Holding
11% of 218 decks
+11% synergy
Folio of Fancies
11% of 133 decks
+10% synergy
Grafted Skullcap
11% of 218 decks
+11% synergy
Tamiyo's Journal
11% of 218 decks
+10% synergy
Venser's Journal
11% of 218 decks
+10% synergy
Swiftfoot Boots
11% of 218 decks
-16% synergy
Geth's Grimoire
11% of 218 decks
+10% synergy
Barrin's Codex
10% of 218 decks
+10% synergy
Grimoire of the Dead
10% of 218 decks
+9% synergy
The Deck of Many Things
10% of 218 decks
+9% synergy
Currency Converter
9% of 218 decks
+9% synergy
Mercadian Atlas
9% of 218 decks
+9% synergy
Otherworld Atlas
9% of 218 decks
+8% synergy
Scroll Rack
9% of 218 decks
+7% synergy
Monster Manual
8% of 118 decks
+6% synergy
Investigator's Journal
8% of 218 decks
+8% synergy
Marina Vendrell's Grimoire
8% of 63 decks
+7% synergy
Jodah's Codex
7% of 218 decks
+7% synergy
Scroll of the Masters
7% of 218 decks
+7% synergy
Cursed Scroll
7% of 218 decks
+7% synergy
Gustha's Scepter
6% of 218 decks
+6% synergy
Lotus Petal
6% of 218 decks
-0% synergy
River Song's Diary
6% of 190 decks
+6% synergy
Monument to Endurance
6% of 49 decks
+5% synergy
Scroll of Origins
6% of 218 decks
+6% synergy
Elixir of Immortality
6% of 218 decks
+5% synergy
Commander's Sphere
6% of 218 decks
-9% synergy
Enchantments
Fortune Teller's Talent
22% of 102 decks
+21% synergy
Valakut Exploration
20% of 173 decks
+17% synergy
Haunted Library
20% of 46 decks
+19% synergy
Case of the Crimson Pulse
18% of 145 decks
+18% synergy
Abundance
17% of 118 decks
+15% synergy
Amphibian Downpour
15% of 111 decks
+13% synergy
Fool's Demise
15% of 133 decks
+15% synergy
Gibbering Descent
15% of 67 decks
+15% synergy
Phyrexian Arena
15% of 67 decks
-1% synergy
Druid Class
14% of 118 decks
+12% synergy
The Lost and the Damned
14% of 115 decks
+12% synergy
Manabond
14% of 118 decks
+13% synergy
Brink of Madness
13% of 67 decks
+13% synergy
Shared Fate
12% of 133 decks
+12% synergy
Curse of the Bloody Tome
11% of 133 decks
+11% synergy
Future Sight
11% of 133 decks
+11% synergy
Ominous Seas
11% of 133 decks
+8% synergy
Words of Waste
10% of 67 decks
+10% synergy
Feast of Sanity
10% of 67 decks
+10% synergy
Sadistic Glee
9% of 67 decks
+9% synergy
Dauthi Embrace
9% of 67 decks
+9% synergy
Faith of the Devoted
9% of 67 decks
+9% synergy
Waste Not
9% of 67 decks
+7% synergy
Rites of Flourishing
8% of 118 decks
+6% synergy
Sylvan Library
8% of 118 decks
-2% synergy
Wild Wasteland
8% of 143 decks
+8% synergy
Virtue of Strength
8% of 114 decks
+6% synergy
Endless Scream
7% of 67 decks
+7% synergy
Bottomless Pit
7% of 67 decks
+7% synergy
Megrim
7% of 67 decks
+6% synergy
Experimental Frenzy
7% of 173 decks
+7% synergy
Powerbalance
7% of 131 decks
+5% synergy
Mystic Redaction
7% of 133 decks
+7% synergy
Safeguard
7% of 46 decks
+7% synergy
Field of Souls
7% of 46 decks
+6% synergy
Reconnaissance
7% of 46 decks
+4% synergy
Felidar Retreat
7% of 46 decks
-0% synergy
Charred Foyer // Warped Space
6% of 77 decks
+5% synergy
Taste for Mayhem
6% of 173 decks
+6% synergy
Passionate Archaeologist
6% of 173 decks
+4% synergy
One with the Multiverse
6% of 133 decks
+4% synergy
Null Profusion
6% of 67 decks
+6% synergy
Death Pits of Rath
6% of 67 decks
+6% synergy
Quest for the Nihil Stone
6% of 67 decks
+6% synergy
Necrogen Mists
6% of 67 decks
+5% synergy
Oppression
6% of 67 decks
+5% synergy
Liliana's Caress
6% of 67 decks
+5% synergy
Painful Quandary
6% of 67 decks
+4% synergy
Animate Dead
6% of 67 decks
-3% synergy
Veiled Crocodile
5% of 133 decks
+5% synergy
Planeswalkers
Jace, Wielder of Mysteries
11% of 133 decks
+8% synergy
Liliana of the Veil
6% of 67 decks
+5% synergy
Utility Lands
Bojuka Bog
16% of 67 decks
-13% synergy
Keldon Megaliths
16% of 173 decks
+16% synergy
Rix Maadi, Dungeon Palace
15% of 46 decks
+14% synergy
Sea Gate Wreckage
15% of 218 decks
+15% synergy
Forgotten Cave
14% of 173 decks
+10% synergy
Barren Moor
13% of 67 decks
+10% synergy
Castle Locthwain
12% of 67 decks
+7% synergy
Boseiju, Who Endures
12% of 118 decks
-7% synergy
Shifting Woodland
11% of 103 decks
+4% synergy
Cabal Coffers
10% of 67 decks
+0% synergy
Reliquary Tower
10% of 218 decks
-20% synergy
Temple of the False God
9% of 218 decks
-0% synergy
Howltooth Hollow
9% of 67 decks
+9% synergy
Alchemist's Refuge
9% of 103 decks
+2% synergy
Stensia Bloodhall
9% of 46 decks
+8% synergy
Lonely Sandbar
8% of 133 decks
+4% synergy
Restless Vinestalk
7% of 101 decks
+5% synergy
Tranquil Thicket
7% of 118 decks
+3% synergy
Oboro, Palace in the Clouds
7% of 133 decks
+6% synergy
Otawara, Soaring City
7% of 133 decks
-10% synergy
Lavaclaw Reaches
7% of 46 decks
+6% synergy
War Room
6% of 218 decks
-0% synergy
Rogue's Passage
6% of 218 decks
-14% synergy
Mana Artifacts
Sol Ring
58% of 218 decks
-26% synergy
Arcane Signet
40% of 218 decks
-32% synergy
Phial of Galadriel
22% of 214 decks
+22% synergy
Boros Signet
16% of 32 decks
-7% synergy
Talisman of Indulgence
15% of 46 decks
-12% synergy
Rakdos Signet
15% of 46 decks
-14% synergy
Charcoal Diamond
15% of 67 decks
+10% synergy
Talisman of Progress
15% of 27 decks
-9% synergy
Talisman of Creativity
14% of 115 decks
-15% synergy
Tome of the Guildpact
13% of 218 decks
+13% synergy
Talisman of Conviction
12% of 32 decks
-11% synergy
Sarevok's Tome
12% of 218 decks
+12% synergy
Talisman of Curiosity
12% of 103 decks
-1% synergy
Azorius Signet
11% of 27 decks
-14% synergy
Fellwar Stone
11% of 218 decks
-10% synergy
Dimir Signet
11% of 28 decks
-18% synergy
Talisman of Dominance
11% of 28 decks
-21% synergy
Fire Diamond
10% of 173 decks
+5% synergy
Talisman of Hierarchy
10% of 29 decks
-15% synergy
Thought Vessel
9% of 218 decks
-8% synergy
Marble Diamond
9% of 46 decks
+5% synergy
Talisman of Impulse
8% of 107 decks
-1% synergy
Izzet Signet
8% of 115 decks
-20% synergy
Gilded Lotus
7% of 218 decks
+4% synergy
Thran Dynamo
6% of 218 decks
+1% synergy
Five Hundred Year Diary
6% of 122 decks
+5% synergy
Sky Diamond
5% of 133 decks
+1% synergy
Midnight Clock
5% of 133 decks
-0% synergy
Chromatic Lantern
5% of 218 decks
-4% synergy
Lands
Command Tower
51% of 218 decks
-23% synergy
Bountiful Landscape
44% of 91 decks
+34% synergy
Frontier Bivouac
43% of 101 decks
+14% synergy
Ketria Triome
37% of 101 decks
+5% synergy
Cinder Glade
34% of 107 decks
-5% synergy
Dragonskull Summit
33% of 46 decks
+0% synergy
Tainted Peak
30% of 46 decks
+20% synergy
Rootbound Crag
30% of 107 decks
+5% synergy
Dreamroot Cascade
29% of 103 decks
+10% synergy
Rejuvenating Springs
29% of 103 decks
+1% synergy
Hinterland Harbor
28% of 103 decks
-1% synergy
Sulfur Falls
28% of 115 decks
-4% synergy
Raugrin Triome
27% of 22 decks
+1% synergy
Steam Vents
27% of 115 decks
-11% synergy
Breeding Pool
26% of 103 decks
-14% synergy
Stomping Ground
26% of 107 decks
-14% synergy
Blood Crypt
26% of 46 decks
-12% synergy
Rockfall Vale
24% of 107 decks
+2% synergy
Spire Garden
24% of 107 decks
+0% synergy
Smoldering Marsh
24% of 46 decks
-9% synergy
Yavimaya Coast
23% of 103 decks
-4% synergy
Evolving Wilds
23% of 218 decks
+2% synergy
Stormcarved Coast
23% of 115 decks
+5% synergy
Training Center
23% of 115 decks
-4% synergy
Temple of Mystery
22% of 103 decks
+5% synergy
Simic Growth Chamber
22% of 103 decks
+3% synergy
Shadowblood Ridge
22% of 46 decks
+9% synergy
Xander's Lounge
22% of 23 decks
-4% synergy
Shivan Reef
21% of 115 decks
-7% synergy
Exotic Orchard
20% of 218 decks
-16% synergy
Indatha Triome
20% of 20 decks
-10% synergy
Foreboding Ruins
20% of 46 decks
+3% synergy
Sulfurous Springs
20% of 46 decks
-2% synergy
Gruul Turf
19% of 107 decks
+3% synergy
Hallowed Fountain
19% of 27 decks
-22% synergy
Jetmir's Garden
18% of 22 decks
-13% synergy
Temple Garden
18% of 22 decks
-21% synergy
Watery Grave
18% of 28 decks
-22% synergy
Karplusan Forest
18% of 107 decks
+0% synergy
Bloodfell Caves
17% of 46 decks
+10% synergy
Savai Triome
17% of 23 decks
-9% synergy
Crumbling Necropolis
17% of 23 decks
-14% synergy
Terramorphic Expanse
17% of 218 decks
+1% synergy
Temple of Abandon
17% of 107 decks
+3% synergy
Hedge Maze
17% of 96 decks
+6% synergy
Izzet Boilerworks
17% of 115 decks
+1% synergy
Temple of Epiphany
16% of 115 decks
-3% synergy
Plateau
16% of 32 decks
+3% synergy
Scalding Tarn
16% of 218 decks
+5% synergy
Overgrown Tomb
15% of 26 decks
-26% synergy