Tidehollow Sculler (Card)
Tidehollow Sculler
In 1235 decks
0% of 1133715 decks
Bartolomé del Presidio
18.60% of 1285 decks
239 decks
Varina, Lich Queen
1.82% of 7138 decks
130 decks
Alesha, Who Smiles at Death
1.80% of 5898 decks
106 decks
Raffine, Scheming Seer
0.68% of 7799 decks
53 decks
Urza, Chief Artificer
0.35% of 13685 decks
48 decks
Athreos, God of Passage
0.71% of 6238 decks
44 decks
Sharuum the Hegemon
2.01% of 1993 decks
40 decks
Karador, Ghost Chieftain
0.55% of 5428 decks
30 decks
Elas il-Kor, Sadistic Pilgrim
0.38% of 6530 decks
25 decks
Teysa, Orzhov Scion
0.87% of 2770 decks
24 decks
Aminatou, the Fateshifter
0.35% of 6261 decks
22 decks
Karlov of the Ghost Council
0.50% of 4020 decks
20 decks
Alela, Artful Provocateur
0.15% of 12309 decks
18 decks
Niv-Mizzet Reborn
0.41% of 4105 decks
17 decks
Lurrus of the Dream-Den
0.64% of 2338 decks
15 decks
Breya, Etherium Shaper
0.11% of 14028 decks
15 decks
Oloro, Ageless Ascetic
0.12% of 12508 decks
15 decks
Sen Triplets
0.26% of 5019 decks
13 decks
New Cards
Alesha, Who Laughs at Fate
100% of 5 decks
+84% synergy
Infestation Sage
83% of 6 decks
+62% synergy
Arabella, Abandoned Doll
40% of 10 decks
+31% synergy
Raise the Past
35% of 31 decks
+25% synergy
The Jolly Balloon Man
21% of 14 decks
+14% synergy
High Synergy Cards
Mephitic Draught
38% of 575 decks
+38% synergy
Greedy Freebooter
38% of 575 decks
+36% synergy
Goblin Bombardment
41% of 209 decks
+35% synergy
Baleful Strix
47% of 457 decks
+34% synergy
Corpse Knight
38% of 1180 decks
+32% synergy
Accursed Marauder
40% of 210 decks
+32% synergy
Knight of Autumn
34% of 137 decks
+31% synergy
Faithless Looting
46% of 207 decks
+30% synergy
Leonin Relic-Warder
30% of 1222 decks
+29% synergy
Feast of the Victorious Dead
31% of 758 decks
+29% synergy
Top Cards
Swords to Plowshares
62% of 1235 decks
-1% synergy
Birds of Paradise
43% of 145 decks
+16% synergy
Eternal Witness
42% of 145 decks
+22% synergy
Deathrite Shaman
40% of 142 decks
+28% synergy
Elas il-Kor, Sadistic Pilgrim
37% of 1039 decks
+26% synergy
Avacyn's Pilgrim
37% of 142 decks
+22% synergy
Skullclamp
36% of 1235 decks
+24% synergy
Zulaport Cutthroat
35% of 1212 decks
+26% synergy
Viscera Seer
35% of 1222 decks
+26% synergy
Damn
34% of 1133 decks
+18% synergy
Creatures
Ignoble Hierarch
34% of 44 decks
+8% synergy
Sakura-Tribe Elder
34% of 145 decks
+15% synergy
Blood Artist
32% of 1221 decks
+21% synergy
Cruel Celebrant
32% of 1186 decks
+24% synergy
Master of Cruelties
30% of 207 decks
+28% synergy
Cathar Commando
29% of 1116 decks
+26% synergy
Elves of Deep Shadow
29% of 145 decks
+18% synergy
Llanowar Elves
29% of 145 decks
+8% synergy
Coiling Oracle
29% of 49 decks
+21% synergy
Noble Hierarch
29% of 49 decks
+12% synergy
Murderous Redcap
27% of 209 decks
+26% synergy
Selfless Spirit
26% of 1211 decks
+22% synergy
Imperial Recruiter
26% of 209 decks
+20% synergy
Diregraf Captain
26% of 457 decks
+22% synergy
Qasali Pridemage
26% of 145 decks
+23% synergy
Scavenging Ooze
25% of 142 decks
+22% synergy
Marionette Apprentice
25% of 261 decks
+18% synergy
Elvish Mystic
24% of 142 decks
+6% synergy
Mother of Runes
24% of 1235 decks
+17% synergy
Knight of the White Orchid
23% of 1235 decks
+18% synergy
Anafenza, Kin-Tree Spirit
23% of 1214 decks
+22% synergy
Stitcher's Supplier
23% of 1192 decks
+20% synergy
Selfless Savior
22% of 1155 decks
+21% synergy
Saffi Eriksdotter
22% of 145 decks
+21% synergy
Wood Elves
22% of 145 decks
+15% synergy
Kiki-Jiki, Mirror Breaker
22% of 209 decks
+18% synergy
Reclamation Sage
22% of 142 decks
+11% synergy
Etherium Sculptor
22% of 469 decks
+16% synergy
Benevolent Bodyguard
21% of 1235 decks
+21% synergy
Zul Ashur, Lich Lord
21% of 47 decks
+18% synergy
Alseid of Life's Bounty
21% of 1168 decks
+19% synergy
Carrion Feeder
21% of 1235 decks
+16% synergy
Fleshtaker
21% of 1116 decks
+20% synergy
Bounty Agent
20% of 1190 decks
+20% synergy
Kami of False Hope
20% of 1235 decks
+19% synergy
Scholar of New Horizons
20% of 972 decks
+19% synergy
Wilhelt, the Rotcleaver
20% of 415 decks
+18% synergy
Jadar, Ghoulcaller of Nephalia
20% of 1116 decks
+17% synergy
Dockside Chef
20% of 1101 decks
+18% synergy
Putrid Goblin
20% of 1184 decks
+19% synergy
Kitchen Finks
19% of 145 decks
+19% synergy
Fyndhorn Elves
19% of 145 decks
+6% synergy
Thought Monitor
19% of 420 decks
+16% synergy
Siege Rhino
18% of 142 decks
+18% synergy
Solemn Simulacrum
18% of 1235 decks
+4% synergy
Wight of the Reliquary
18% of 22 decks
+10% synergy
Esper Sentinel
18% of 1133 decks
-2% synergy
Loyal Warhound
18% of 1122 decks
+16% synergy
Vizier of Remedies
18% of 1198 decks
+18% synergy
Metallic Mimic
18% of 1204 decks
+17% synergy
Instants
Counterspell
33% of 469 decks
-10% synergy
Path to Exile
31% of 1234 decks
-15% synergy
Village Rites
27% of 1155 decks
+17% synergy
Void Rend
27% of 399 decks
+12% synergy
Deadly Dispute
25% of 1122 decks
+14% synergy
Abrupt Decay
24% of 142 decks
+13% synergy
Revitalizing Repast
24% of 21 decks
+12% synergy
Generous Gift
23% of 1184 decks
-3% synergy
Boros Charm
23% of 207 decks
-2% synergy
Anguished Unmaking
22% of 1212 decks
-2% synergy
Terminate
22% of 209 decks
+1% synergy
Thrill of Possibility
21% of 193 decks
+11% synergy
Fanatical Offering
21% of 575 decks
+19% synergy
Brainstorm
20% of 469 decks
-1% synergy
Assassin's Trophy
19% of 137 decks
-11% synergy
Rally the Ancestors
18% of 1214 decks
+18% synergy
Dovin's Veto
18% of 441 decks
-1% synergy
Growth Spiral
17% of 46 decks
-5% synergy
Chord of Calling
17% of 145 decks
+12% synergy
Cyclonic Rift
17% of 457 decks
-11% synergy
Despark
17% of 1186 decks
+1% synergy
Wash Away
15% of 409 decks
+14% synergy
Demand Answers
15% of 65 decks
+8% synergy
Mana Leak
15% of 469 decks
+12% synergy
Force of Will
15% of 469 decks
+4% synergy
Eladamri's Call
14% of 145 decks
+4% synergy
Lightning Bolt
14% of 209 decks
+4% synergy
Prismari Command
14% of 56 decks
+9% synergy
Fell the Profane
13% of 261 decks
+2% synergy
Lightning Helix
12% of 209 decks
+11% synergy
Worldly Tutor
12% of 145 decks
-2% synergy
Swan Song
12% of 455 decks
-4% synergy
Waterlogged Teachings
12% of 99 decks
+6% synergy
Mortify
12% of 1235 decks
+0% synergy
Spell Pierce
12% of 457 decks
+8% synergy
Force Spike
12% of 469 decks
+12% synergy
Izzet Charm
12% of 60 decks
+6% synergy
Enlightened Tutor
11% of 1235 decks
-6% synergy
Mental Misstep
11% of 457 decks
+5% synergy
Abzan Charm
11% of 142 decks
+6% synergy
Rakdos Charm
11% of 207 decks
-3% synergy
Daze
11% of 469 decks
+10% synergy
Arcane Denial
11% of 469 decks
-9% synergy
Putrefy
11% of 145 decks
-5% synergy
Utter End
11% of 1215 decks
+4% synergy
Kolaghan's Command
11% of 207 decks
+8% synergy
Entomb
10% of 1235 decks
+3% synergy
Lose Focus
10% of 420 decks
+10% synergy
Chaos Warp
10% of 207 decks
-22% synergy
Fatal Push
10% of 1204 decks
+9% synergy
Sorceries
Unearth
31% of 1235 decks
+27% synergy
Vindicate
28% of 1235 decks
+21% synergy
Sevinne's Reclamation
27% of 1180 decks
+20% synergy
Bring to Light
26% of 47 decks
+24% synergy
Cathartic Reunion
24% of 205 decks
+20% synergy
Rite of Oblivion
24% of 1116 decks
+21% synergy
Austere Command
24% of 1235 decks
+11% synergy
Ascend from Avernus
20% of 1060 decks
+19% synergy
Green Sun's Zenith
20% of 142 decks
+14% synergy
Demonic Tutor
19% of 1235 decks
-3% synergy
Gamble
19% of 209 decks
+9% synergy
Reanimate
18% of 1235 decks
+2% synergy
Cultivate
17% of 142 decks
-29% synergy
Blasphemous Edict
16% of 31 decks
-17% synergy
Life from the Loam
16% of 145 decks
+12% synergy
Farseek
16% of 145 decks
-18% synergy
Eldritch Evolution
14% of 141 decks
+10% synergy
Nature's Lore
13% of 145 decks
-19% synergy
Ruinous Ultimatum
12% of 188 decks
-6% synergy
Thoughtcast
12% of 469 decks
+9% synergy
Victimize
11% of 1235 decks
-0% synergy
Supreme Verdict
11% of 457 decks
-3% synergy
Buried Alive
11% of 1235 decks
+5% synergy
Neoform
11% of 46 decks
+6% synergy
Blasphemous Act
11% of 207 decks
-23% synergy
Maelstrom Pulse
10% of 145 decks
+8% synergy
Tormenting Voice
10% of 207 decks
+7% synergy
Lively Dirge
10% of 308 decks
+8% synergy
Ponder
10% of 469 decks
-3% synergy
Bone Shards
10% of 1133 decks
+8% synergy
Return to the Ranks
9% of 1215 decks
+9% synergy
Gitaxian Probe
9% of 457 decks
+3% synergy
Dreadbore
9% of 207 decks
+7% synergy
Dewdrop Cure
9% of 120 decks
+8% synergy
Kodama's Reach
9% of 145 decks
-22% synergy
Toxic Deluge
9% of 1217 decks
-9% synergy
Expressive Iteration
9% of 56 decks
+2% synergy
Season of Weaving
9% of 45 decks
+5% synergy
Diabolic Intent
9% of 1235 decks
+0% synergy
Helping Hand
9% of 602 decks
+8% synergy
Duneblast
8% of 142 decks
+5% synergy
Rampant Growth
8% of 145 decks
-26% synergy
Living Death
8% of 1235 decks
+3% synergy
Preordain
8% of 457 decks
-3% synergy
Molten Collapse
8% of 75 decks
+6% synergy
Thoughtseize
8% of 1235 decks
+7% synergy
Inquisition of Kozilek
8% of 1222 decks
+7% synergy
Culling Ritual
8% of 129 decks
-3% synergy
Wrath of God
8% of 1235 decks
+1% synergy
Three Visits
8% of 145 decks
-17% synergy
Utility Artifacts
Wayfarer's Bauble
23% of 1235 decks
+13% synergy
Ichor Wellspring
21% of 1222 decks
+19% synergy
Birthing Pod
20% of 142 decks
+18% synergy
Key to the City
20% of 1208 decks
+19% synergy
Mishra's Bauble
19% of 1235 decks
+18% synergy
Executioner's Capsule
19% of 1235 decks
+19% synergy
Nihil Spellbomb
19% of 1222 decks
+18% synergy
Mycosynth Wellspring
18% of 1222 decks
+17% synergy
Soul-Guide Lantern
17% of 1168 decks
+16% synergy
Vat of Rebirth
14% of 847 decks
+12% synergy
Swiftfoot Boots
14% of 1222 decks
-14% synergy
Lightning Greaves
14% of 1235 decks
-11% synergy
Ashnod's Altar
13% of 1235 decks
+6% synergy
Thopter Foundry
11% of 468 decks
+9% synergy
Sunforger
11% of 209 decks
+6% synergy
Phyrexian Altar
10% of 1235 decks
+6% synergy
Time Sieve
10% of 468 decks
+7% synergy
Animation Module
8% of 1208 decks
+8% synergy
Altar of Dementia
8% of 1235 decks
+5% synergy
Bident of Thassa
7% of 455 decks
+0% synergy
Simulacrum Synthesizer
6% of 110 decks
+4% synergy
Mage Slayer
6% of 51 decks
+4% synergy
Oni-Cult Anvil
5% of 173 decks
+3% synergy
Shorikai, Genesis Engine
5% of 408 decks
+2% synergy
Enchantments
Animate Dead
24% of 1235 decks
+14% synergy
Blind Obedience
23% of 1220 decks
+16% synergy
Rooftop Storm
22% of 457 decks
+20% synergy
Hidden Stockpile
20% of 1204 decks
+19% synergy
Seal of Cleansing
18% of 1235 decks
+16% synergy
Necroduality
15% of 409 decks
+13% synergy
Maelstrom Nexus
12% of 40 decks
+5% synergy
Caretaker's Talent
12% of 98 decks
+1% synergy
Kindred Discovery
12% of 447 decks
+5% synergy
Leyline of Transformation
12% of 26 decks
+9% synergy
Rhystic Study
11% of 469 decks
-16% synergy
Pattern of Rebirth
11% of 145 decks
+10% synergy
Lunar Convocation
11% of 109 decks
+4% synergy
Mystic Remora
11% of 469 decks
-7% synergy
Evolutionary Leap
11% of 141 decks
+9% synergy
Chthonian Nightmare
10% of 267 decks
+8% synergy
Thopter Spy Network
10% of 452 decks
+7% synergy
Insidious Roots
10% of 31 decks
+1% synergy
Wild Growth
9% of 145 decks
-2% synergy
Assemble the Players
9% of 394 decks
+8% synergy
Smothering Tithe
9% of 1190 decks
-16% synergy
Teferi's Ageless Insight
9% of 431 decks
+3% synergy
Rhythm of the Wild
9% of 47 decks
-15% synergy
Sylvan Library
8% of 145 decks
-3% synergy
Phyrexian Arena
8% of 1235 decks
-7% synergy
Impact Tremors
8% of 207 decks
-2% synergy
Fable of the Mirror-Breaker
7% of 173 decks
+5% synergy
Glasswing Grace
7% of 261 decks
+3% synergy
Aura Shards
7% of 145 decks
-2% synergy
Ripples of Undeath
6% of 235 decks
+0% synergy
Bitterblossom
6% of 1235 decks
+2% synergy
Flameshadow Conjuring
6% of 207 decks
+5% synergy
Skrelv's Hive
6% of 897 decks
+3% synergy
Survival of the Fittest
6% of 145 decks
+4% synergy
Trace of Abundance
6% of 51 decks
+3% synergy
Guardian Project
6% of 137 decks
-3% synergy
Reconnaissance
6% of 1235 decks
+3% synergy
Pernicious Deed
6% of 145 decks
+4% synergy
Mirari's Wake
6% of 145 decks
-8% synergy
Phyrexian Reclamation
6% of 1235 decks
+2% synergy
Sheltered by Ghosts
5% of 56 decks
-2% synergy
Underworld Breach
5% of 189 decks
-1% synergy
Case of the Stashed Skeleton
5% of 425 decks
+4% synergy
Storm the Vault
5% of 59 decks
+2% synergy
Bastion of Remembrance
5% of 1161 decks
-1% synergy
Land Tax
5% of 1235 decks
-2% synergy
Battles
Invasion of Amonkhet
5% of 249 decks
+4% synergy
Planeswalkers
Oko, Thief of Crowns
20% of 46 decks
+14% synergy
Wrenn and Six
17% of 47 decks
+16% synergy
Teferi, Time Raveler
16% of 441 decks
+9% synergy
Domri, Anarch of Bolas
15% of 47 decks
+11% synergy
Grist, the Hunger Tide
15% of 128 decks
+11% synergy
Minsc & Boo, Timeless Heroes
11% of 35 decks
+9% synergy
Tyvar, Jubilant Brawler
10% of 83 decks
+5% synergy
Tezzeret the Seeker
9% of 469 decks
+6% synergy
Daretti, Scrap Savant
9% of 207 decks
+6% synergy
Jace Reawakened
8% of 125 decks
+7% synergy
Vraska, Golgari Queen
7% of 137 decks
+4% synergy
Saheeli, Sublime Artificer
7% of 59 decks
+2% synergy
Dack Fayden
7% of 60 decks
+5% synergy
Dihada, Binder of Wills
6% of 158 decks
+1% synergy
Tezzeret, Agent of Bolas
5% of 457 decks
+5% synergy
Utility Lands
Bojuka Bog
25% of 1223 decks
-5% synergy
Vault of Whispers
24% of 1235 decks
+20% synergy
Rogue's Passage
24% of 1220 decks
+4% synergy
Seat of the Synod
22% of 469 decks
+16% synergy
Shambling Vent
20% of 1212 decks
+18% synergy
Otawara, Soaring City
19% of 408 decks
+2% synergy
Ancient Den
17% of 1235 decks
+12% synergy
Boseiju, Who Endures
15% of 124 decks
-4% synergy
Urborg, Tomb of Yawgmoth
15% of 1235 decks
+5% synergy
Dryad Arbor
12% of 145 decks
+8% synergy
Creeping Tar Pit
11% of 457 decks
+8% synergy
Eiganjo, Seat of the Empire
11% of 1101 decks
+2% synergy
Stirring Wildwood
10% of 143 decks
+9% synergy
Vault of the Archangel
10% of 1221 decks
-0% synergy
Three Tree City
10% of 125 decks
+1% synergy
Reliquary Tower
9% of 1234 decks
-20% synergy
Hanweir Battlements
9% of 206 decks
+8% synergy
Gavony Township
9% of 142 decks
-0% synergy
Phyrexian Tower
9% of 1235 decks
+0% synergy
Takenuma, Abandoned Mire
8% of 1101 decks
-2% synergy
High Market
8% of 1235 decks
+5% synergy
Archway of Innovation
8% of 75 decks
+3% synergy
Academy Ruins
8% of 469 decks
+3% synergy
Spymaster's Vault
8% of 261 decks
+4% synergy
Celestial Colonnade
8% of 457 decks
+6% synergy
Urza's Saga
8% of 1133 decks
+0% synergy
Darksteel Citadel
7% of 1235 decks
+3% synergy
Tranquil Thicket
7% of 145 decks
+3% synergy
Great Furnace
7% of 209 decks
+1% synergy
Restless Cottage
6% of 48 decks
+2% synergy
Hissing Quagmire
6% of 141 decks
+4% synergy
Unholy Grotto
5% of 1235 decks
+5% synergy
Restless Fortress
5% of 675 decks
+2% synergy
Buried Ruin
5% of 1222 decks
+0% synergy
Mana Artifacts
Sol Ring
69% of 1235 decks
-15% synergy
Arcane Signet
63% of 1179 decks
-10% synergy
Orzhov Signet
45% of 1235 decks
+18% synergy
Rakdos Signet
38% of 209 decks
+9% synergy
Boros Signet
31% of 209 decks
+8% synergy
Dimir Signet
28% of 469 decks
-2% synergy
Talisman of Dominance
25% of 469 decks
-6% synergy
Mind Stone
25% of 1235 decks
+8% synergy
Azorius Signet
23% of 469 decks
-2% synergy
Talisman of Hierarchy
22% of 1184 decks
-2% synergy
Talisman of Conviction
20% of 197 decks
-3% synergy
Talisman of Indulgence
18% of 209 decks
-8% synergy
Chromatic Star
17% of 1235 decks
+17% synergy
Talisman of Progress
15% of 469 decks
-8% synergy
Fellwar Stone
14% of 1235 decks
-7% synergy
Patchwork Banner
10% of 109 decks
+1% synergy
Izzet Signet
10% of 62 decks
-18% synergy
Commander's Sphere
9% of 1215 decks
-6% synergy
Chromatic Lantern
9% of 1220 decks
-1% synergy
Obelisk of Esper
8% of 469 decks
+7% synergy
Obelisk of Bant
6% of 49 decks
+6% synergy
Simic Signet
6% of 49 decks
-8% synergy
Obelisk of Naya
6% of 51 decks
+6% synergy
Obelisk of Jund
6% of 51 decks
+5% synergy
Selesnya Signet
6% of 145 decks
-3% synergy
Golgari Signet
6% of 145 decks
-7% synergy
Talisman of Creativity
5% of 58 decks
-24% synergy
Lotus Petal
5% of 1235 decks
-2% synergy
Thought Vessel
5% of 1212 decks
-12% synergy
Lands
Command Tower
84% of 1222 decks
+10% synergy
Caves of Koilos
53% of 1235 decks
+25% synergy
Isolated Chapel
50% of 1221 decks
+22% synergy
Temple Garden
49% of 145 decks
+9% synergy
Overgrown Tomb
48% of 145 decks
+5% synergy
Godless Shrine
46% of 1235 decks
+5% synergy
Watery Grave
45% of 469 decks
+5% synergy
Arcane Sanctum
45% of 469 decks
+17% synergy
Sacred Foundry
44% of 209 decks
+8% synergy
Nomad Outpost
43% of 207 decks
+16% synergy
Stomping Ground
43% of 51 decks
+2% synergy
Hallowed Fountain
42% of 469 decks
+1% synergy
Raffine's Tower
41% of 399 decks
+13% synergy
Blood Crypt
38% of 209 decks
-0% synergy
Shattered Landscape
38% of 37 decks
+25% synergy
Steam Vents
37% of 62 decks
-2% synergy
Indatha Triome
37% of 134 decks
+6% synergy
Llanowar Wastes
37% of 145 decks
+11% synergy
Battlefield Forge
36% of 209 decks
+11% synergy
Savai Triome
35% of 188 decks
+8% synergy
Sunpetal Grove
34% of 143 decks
+11% synergy
Spara's Headquarters
34% of 41 decks
+3% synergy
Ketria Triome
33% of 36 decks
+1% synergy
Temple of Silence
33% of 1218 decks
+15% synergy
Marsh Flats
33% of 1223 decks
+22% synergy
Tainted Field
33% of 1235 decks
+19% synergy
Breeding Pool
33% of 49 decks
-8% synergy
Concealed Courtyard
33% of 1208 decks
+27% synergy
Sandsteppe Citadel
32% of 142 decks
+7% synergy
Woodland Cemetery
32% of 142 decks
+4% synergy
Dragonskull Summit
32% of 207 decks
+1% synergy
Drowned Catacomb
32% of 457 decks
+6% synergy
Glacial Fortress
32% of 457 decks
+6% synergy
Clifftop Retreat
31% of 207 decks
+3% synergy
Orzhov Basilica
31% of 1235 decks
+15% synergy
Underground River
30% of 469 decks
+10% synergy
Jetmir's Garden
30% of 40 decks
-3% synergy
Sunken Hollow
29% of 452 decks
-5% synergy
Canopy Vista
28% of 141 decks
-8% synergy
Contaminated Landscape
28% of 85 decks
+16% synergy
Raugrin Triome
28% of 57 decks
+2% synergy
Shineshadow Snarl
27% of 1139 decks
+15% synergy
Murmuring Bosk
26% of 145 decks
+18% synergy
Exotic Orchard
25% of 1234 decks
-11% synergy
Deceptive Landscape
25% of 20 decks
+13% synergy
Ziatora's Proving Ground
25% of 40 decks
-7% synergy
Zagoth Triome
24% of 45 decks
-6% synergy
Sunlit Marsh
24% of 1039 decks
+20% synergy
Shadowy Backstreet
24% of 425 decks
+10% synergy
Adarkar Wastes
23% of 469 decks
+5% synergy