Calciform Pools (Card)
Calciform Pools
In 6198 decks
0.46% of 1346488 decks
Nov 5, 2021
Too-Specific Top 10 - Budget Duals
Building a budget mana base? These lands are less than a buck!
Oct 7, 2019
Ranking Every Land with EDHREC – Part 13: Holdout for Better Lands
Ranking every land in EDH using EDHREC!
Atraxa, Praetors' Voice
5.37% of 36042 decks
1934 decks
Perrie, the Pulverizer
24.32% of 1694 decks
412 decks
Grand Arbiter Augustin IV
1.39% of 8828 decks
123 decks
Bruna, Light of Alabaster
3.82% of 2857 decks
109 decks
Hylda of the Icy Crown
0.87% of 12136 decks
106 decks
Brago, King Eternal
1.02% of 9944 decks
101 decks
Shorikai, Genesis Engine
0.53% of 19082 decks
101 decks
Zethi, Arcane Blademaster
1.55% of 6206 decks
96 decks
Falco Spara, Pactweaver
1.40% of 4560 decks
64 decks
Denry Klin, Editor in Chief
10.24% of 615 decks
63 decks
Esika, God of the Tree
0.32% of 19961 decks
63 decks
Cayth, Famed Mechanist
2.21% of 2675 decks
59 decks
Kros, Defense Contractor
1.97% of 2989 decks
59 decks
Kwain, Itinerant Meddler
0.96% of 5746 decks
55 decks
Kangee, Aerie Keeper
8.84% of 588 decks
52 decks
Kastral, the Windcrested
0.85% of 5875 decks
50 decks
Arcades, the Strategist
0.27% of 18818 decks
50 decks
Rasputin, the Oneiromancer
13.32% of 368 decks
49 decks
Ephara, God of the Polis
2.50% of 1840 decks
46 decks
Elminster
1.02% of 4308 decks
44 decks
New Cards
Yuna, Grand Summoner
8% of 252 decks
+5% synergy
Sphere Grid
7% of 214 decks
+6% synergy
Warden of the Grove
7% of 585 decks
+4% synergy
Lulu, Stern Guardian
6% of 452 decks
+5% synergy
Hollowmurk Siege
5% of 426 decks
+2% synergy
High Synergy Cards
Saltcrusted Steppe
76% of 3231 decks
+76% synergy
Dreadship Reef
76% of 2737 decks
+76% synergy
Fungal Reaches
59% of 374 decks
+59% synergy
Molten Slagheap
56% of 365 decks
+56% synergy
Evolution Sage
54% of 3231 decks
+47% synergy
Ezuri, Stalker of Spheres
44% of 3231 decks
+41% synergy
Karn's Bastion
38% of 6199 decks
+33% synergy
Vraska, Betrayal's Sting
34% of 2737 decks
+31% synergy
Brokers Ascendancy
34% of 3231 decks
+27% synergy
Thrummingbird
31% of 6199 decks
+27% synergy
Top Cards
Swords to Plowshares
44% of 6199 decks
-19% synergy
Counterspell
34% of 6199 decks
-8% synergy
Cultivate
33% of 3231 decks
-12% synergy
Farseek
32% of 3231 decks
-3% synergy
Path to Exile
30% of 6199 decks
-17% synergy
Tezzeret's Gambit
28% of 6199 decks
+25% synergy
Tekuthal, Inquiry Dominus
27% of 6199 decks
+25% synergy
Vorinclex, Monstrous Raider
25% of 3231 decks
+22% synergy
Fathom Mage
25% of 3231 decks
+21% synergy
Doubling Season
24% of 3231 decks
+15% synergy
Game Changers
Rhystic Study
15% of 6199 decks
-11% synergy
Smothering Tithe
14% of 6199 decks
-9% synergy
Teferi's Protection
13% of 6199 decks
-6% synergy
Demonic Tutor
12% of 2737 decks
-8% synergy
Enlightened Tutor
9% of 6199 decks
-7% synergy
Narset, Parter of Veils
9% of 6199 decks
+5% synergy
Vampiric Tutor
8% of 2737 decks
-9% synergy
Mystical Tutor
7% of 6199 decks
-7% synergy
Fierce Guardianship
6% of 6199 decks
-12% synergy
Grand Arbiter Augustin IV
5% of 6199 decks
+1% synergy
Creatures
Flux Channeler
23% of 6199 decks
+21% synergy
Forgotten Ancient
22% of 3231 decks
+16% synergy
Dreamtide Whale
22% of 3925 decks
+19% synergy
Cankerbloom
21% of 3231 decks
+16% synergy
Grateful Apparition
19% of 6199 decks
+17% synergy
Carth the Lion
18% of 2318 decks
+17% synergy
Deepglow Skate
18% of 6199 decks
+16% synergy
Winding Constrictor
18% of 2318 decks
+14% synergy
Vorel of the Hull Clade
17% of 3231 decks
+14% synergy
Shalai, Voice of Plenty
15% of 3231 decks
+9% synergy
Metastatic Evangel
15% of 3963 decks
+13% synergy
Slippery Bogbonder
14% of 3231 decks
+13% synergy
Rishkar, Peema Renegade
14% of 3231 decks
+10% synergy
Kami of Whispered Hopes
14% of 3231 decks
+7% synergy
Lae'zel, Vlaakith's Champion
14% of 6199 decks
+11% synergy
Incubation Druid
14% of 3231 decks
+9% synergy
Ixhel, Scion of Atraxa
13% of 2318 decks
+11% synergy
Birds of Paradise
13% of 3231 decks
-14% synergy
Agent Frank Horrigan
13% of 1663 decks
+11% synergy
Bloated Contaminator
13% of 3231 decks
+11% synergy
Ichor Rats
13% of 2737 decks
+11% synergy
Falco Spara, Pactweaver
12% of 3231 decks
+11% synergy
Tainted Observer
12% of 3231 decks
+10% synergy
Corpsejack Menace
12% of 2318 decks
+7% synergy
Arwen, Mortal Queen
11% of 3231 decks
+10% synergy
Pir, Imaginative Rascal
11% of 3231 decks
+10% synergy
Voidwing Hybrid
11% of 2737 decks
+10% synergy
Contaminant Grafter
10% of 3231 decks
+9% synergy
Solemn Simulacrum
10% of 6199 decks
-3% synergy
Evolution Witness
10% of 2035 decks
+7% synergy
Scheming Aspirant
10% of 2737 decks
+9% synergy
Venerated Rotpriest
10% of 3231 decks
+8% synergy
Spark Double
10% of 6199 decks
+3% synergy
Devoted Druid
10% of 3231 decks
+7% synergy
Master Biomancer
10% of 3231 decks
+6% synergy
Gyre Sage
9% of 3231 decks
+6% synergy
Blightbelly Rat
9% of 2737 decks
+8% synergy
Esper Sentinel
9% of 6199 decks
-11% synergy
Roalesk, Apex Hybrid
9% of 3231 decks
+8% synergy
Crystalline Crawler
9% of 6199 decks
+8% synergy
Champion of Lambholt
9% of 3231 decks
+2% synergy
Cayth, Famed Mechanist
8% of 517 decks
+5% synergy
Bloom Tender
8% of 3231 decks
+1% synergy
Zimone, Paradox Sculptor
8% of 1369 decks
+6% synergy
Vishgraz, the Doomhive
8% of 2318 decks
+6% synergy
Crystalline Giant
8% of 6199 decks
+7% synergy
Norn's Choirmaster
8% of 6199 decks
+6% synergy
Park Heights Maverick
8% of 3231 decks
+7% synergy
Denry Klin, Editor in Chief
7% of 6199 decks
+7% synergy
Wall of Roots
7% of 3231 decks
+6% synergy
Instants
Atomize
24% of 1645 decks
+20% synergy
Brokers Confluence
21% of 3231 decks
+20% synergy
Mutational Advantage
19% of 2328 decks
+15% synergy
Experimental Augury
18% of 6199 decks
+16% synergy
Generous Gift
16% of 6199 decks
-8% synergy
Negate
16% of 6199 decks
-6% synergy
Dovin's Veto
15% of 6199 decks
-3% synergy
Vraska's Fall
14% of 2737 decks
+13% synergy
Cyclonic Rift
14% of 6199 decks
-12% synergy
Heroic Intervention
13% of 3231 decks
-17% synergy
Beast Within
13% of 3231 decks
-23% synergy
Ripples of Potential
12% of 5223 decks
+10% synergy
Arcane Denial
11% of 6199 decks
-9% synergy
Inspiring Call
11% of 3231 decks
+3% synergy
Anguished Unmaking
11% of 2737 decks
-14% synergy
Assassin's Trophy
10% of 2318 decks
-20% synergy
Prologue to Phyresis
9% of 6199 decks
+8% synergy
Infectious Bite
9% of 3231 decks
+8% synergy
Brainstorm
9% of 6199 decks
-10% synergy
Chaos Warp
9% of 766 decks
-22% synergy
Fuel for the Cause
9% of 6199 decks
+8% synergy
Contractual Safeguard
9% of 6199 decks
+9% synergy
Steady Progress
9% of 6199 decks
+8% synergy
Boros Charm
9% of 766 decks
-15% synergy
Mortify
9% of 2737 decks
-3% synergy
Void Rend
8% of 2737 decks
-5% synergy
Putrefy
8% of 2318 decks
-7% synergy
Mana Drain
8% of 6199 decks
-7% synergy
Gift of the Viper
8% of 1987 decks
+5% synergy
An Offer You Can't Refuse
8% of 6199 decks
-14% synergy
Radstorm
7% of 5318 decks
+6% synergy
Bant Charm
7% of 3231 decks
+3% synergy
Reject Imperfection
7% of 6199 decks
+6% synergy
Whisper of the Dross
7% of 2737 decks
+6% synergy
Storm of Forms
7% of 6199 decks
+7% synergy
Stroke of Midnight
7% of 5747 decks
-4% synergy
Despark
6% of 2737 decks
-9% synergy
Brokers Charm
6% of 3231 decks
+3% synergy
Serum Snare
6% of 6199 decks
+5% synergy
Ephemerate
6% of 6199 decks
+0% synergy
Sphinx's Revelation
6% of 6199 decks
+3% synergy
Swan Song
5% of 6199 decks
-11% synergy
Render Silent
5% of 6199 decks
+3% synergy
Grim Affliction
5% of 2737 decks
+5% synergy
Volt Charge
5% of 766 decks
+5% synergy
Sorceries
Unnatural Restoration
23% of 3231 decks
+20% synergy
Rampant Growth
18% of 3231 decks
-16% synergy
Kodama's Reach
17% of 3231 decks
-13% synergy
Drown in Ichor
17% of 2737 decks
+15% synergy
Nature's Lore
16% of 3231 decks
-15% synergy
Supreme Verdict
16% of 6199 decks
+2% synergy
Infectious Inquiry
15% of 2737 decks
+14% synergy
Thirsting Roots
15% of 3231 decks
+13% synergy
Contentious Plan
14% of 6199 decks
+13% synergy
Three Visits
12% of 3231 decks
-12% synergy
Eerie Ultimatum
12% of 2318 decks
+0% synergy
Farewell
11% of 6199 decks
-1% synergy
Phyresis Outbreak
11% of 2737 decks
+10% synergy
Expand the Sphere
10% of 3231 decks
+9% synergy
Damning Verdict
10% of 6199 decks
+8% synergy
Austere Command
10% of 6199 decks
-3% synergy
Blasphemous Act
9% of 766 decks
-24% synergy
Time Wipe
9% of 6199 decks
+3% synergy
Damn
8% of 2737 decks
-8% synergy
Merciless Eviction
8% of 2737 decks
+5% synergy
Rishkar's Expertise
7% of 3231 decks
-3% synergy
Planewide Celebration
7% of 3231 decks
+7% synergy
Wrath of God
7% of 6199 decks
+1% synergy
Approach of the Second Sun
7% of 6199 decks
+3% synergy
Vat Emergence
6% of 2737 decks
+5% synergy
Promise of Loyalty
6% of 6199 decks
+3% synergy
Primevals' Glorious Rebirth
6% of 2737 decks
+2% synergy
Smell Fear
6% of 3231 decks
+5% synergy
Diabolic Tutor
6% of 2737 decks
-0% synergy
Toxic Deluge
5% of 2737 decks
-13% synergy
Ponder
5% of 6199 decks
-7% synergy
Utility Artifacts
Swiftfoot Boots
22% of 6199 decks
-5% synergy
Agent's Toolkit
17% of 3231 decks
+16% synergy
Commander's Sphere
17% of 6199 decks
+3% synergy
Contagion Engine
15% of 6199 decks
+14% synergy
Lightning Greaves
14% of 6199 decks
-11% synergy
Ichormoon Gauntlet
11% of 6199 decks
+10% synergy
Contagion Clasp
11% of 6199 decks
+10% synergy
Mind Stone
11% of 6199 decks
-6% synergy
The Ozolith
10% of 6199 decks
+6% synergy
Magistrate's Scepter
8% of 6199 decks
+8% synergy
Sword of Truth and Justice
8% of 6199 decks
+7% synergy
Ozolith, the Shattered Spire
8% of 3231 decks
+3% synergy
Lux Cannon
8% of 6199 decks
+8% synergy
The Chain Veil
7% of 6199 decks
+6% synergy
Wayfarer's Bauble
6% of 6199 decks
-3% synergy
Gavel of the Righteous
6% of 6199 decks
+6% synergy
The Great Henge
6% of 3231 decks
-4% synergy
Norn's Annex
6% of 6199 decks
+4% synergy
Panharmonicon
6% of 6199 decks
+2% synergy
Tome of Legends
5% of 6199 decks
+5% synergy
Enchantments
Inexorable Tide
24% of 6199 decks
+22% synergy
Innkeeper's Talent
19% of 1848 decks
+15% synergy
Simic Ascendancy
15% of 3231 decks
+9% synergy
Ghostly Prison
14% of 6199 decks
+3% synergy
Propaganda
14% of 6199 decks
+1% synergy
As Foretold
12% of 6199 decks
+10% synergy
Hardened Scales
12% of 3231 decks
+2% synergy
Resourceful Defense
11% of 6199 decks
+10% synergy
Phyrexian Arena
11% of 2737 decks
-4% synergy
Whirlwind of Thought
11% of 766 decks
+1% synergy
Prism Array
11% of 347 decks
+11% synergy
Oath of Teferi
10% of 6199 decks
+7% synergy
Oath of Nissa
10% of 3231 decks
+10% synergy
All Will Be One
10% of 766 decks
+8% synergy
Family's Favor
9% of 3231 decks
+9% synergy
Oath of Ajani
7% of 3231 decks
+7% synergy
Ominous Seas
7% of 6199 decks
+5% synergy
Communal Brewing
7% of 1821 decks
+6% synergy
Paradox Zone
7% of 3231 decks
+7% synergy
Mystic Remora
7% of 6199 decks
-10% synergy
Jeskai Ascendancy
6% of 766 decks
+0% synergy
Leyline of the Guildpact
6% of 260 decks
-9% synergy
Assemble the Legion
6% of 766 decks
+2% synergy
Branching Evolution
6% of 3231 decks
+0% synergy
Bounty of the Luxa
6% of 3231 decks
+5% synergy
Together Forever
6% of 6199 decks
+4% synergy
Mirari's Wake
6% of 3231 decks
-7% synergy
Bred for the Hunt
5% of 3231 decks
+3% synergy
Norn's Decree
5% of 6199 decks
+4% synergy
Cathars' Crusade
5% of 6199 decks
-0% synergy
Firemind's Research
5% of 766 decks
+5% synergy
Planeswalkers
Tamiyo, Field Researcher
21% of 3231 decks
+16% synergy
Ajani, Sleeper Agent
14% of 3231 decks
+12% synergy
Ajani, the Greathearted
11% of 3231 decks
+9% synergy
Kaya the Inexorable
11% of 2737 decks
+9% synergy
Oko, Thief of Crowns
10% of 3231 decks
+5% synergy
Wrenn and Realmbreaker
10% of 3231 decks
+8% synergy
Vraska the Unseen
9% of 2318 decks
+8% synergy
Ashiok, Dream Render
9% of 2737 decks
+5% synergy
Teferi, Master of Time
8% of 6199 decks
+6% synergy
Vraska, Relic Seeker
8% of 2318 decks
+7% synergy
Ajani Unyielding
8% of 3231 decks
+7% synergy
Teferi, Temporal Archmage
8% of 6199 decks
+7% synergy
Tamiyo, Compleated Sage
8% of 3231 decks
+7% synergy
Elspeth, Sun's Champion
7% of 6199 decks
+3% synergy
Elspeth Resplendent
7% of 6199 decks
+6% synergy
Liliana Vess
7% of 2737 decks
+6% synergy
Teferi, Hero of Dominaria
7% of 6199 decks
+5% synergy
Kiora, the Crashing Wave
7% of 3231 decks
+6% synergy
Teferi, Who Slows the Sunset
7% of 6199 decks
+5% synergy
Saheeli, Sublime Artificer
7% of 766 decks
+3% synergy
Teferi, Time Raveler
7% of 6199 decks
-0% synergy
Nicol Bolas, Dragon-God
7% of 365 decks
+3% synergy
Vivien, Monsters' Advocate
7% of 3231 decks
+6% synergy
The Eternal Wanderer
6% of 6199 decks
+4% synergy
Ob Nixilis Reignited
6% of 2737 decks
+5% synergy
Jiang Yanggu, Wildcrafter
6% of 3231 decks
+5% synergy
Garruk, Cursed Huntsman
6% of 2318 decks
+4% synergy
Ajani, Mentor of Heroes
6% of 3231 decks
+5% synergy
Tamiyo, the Moon Sage
6% of 6199 decks
+5% synergy
Liliana, Dreadhorde General
5% of 2737 decks
+2% synergy
Narset of the Ancient Way
5% of 766 decks
+3% synergy
Ajani Steadfast
5% of 6199 decks
+4% synergy
Ugin, the Spirit Dragon
5% of 6199 decks
+4% synergy
Utility Lands
Reliquary Tower
34% of 6199 decks
+4% synergy
Gavony Township
24% of 3231 decks
+15% synergy
Nesting Grounds
20% of 6199 decks
+18% synergy
Llanowar Reborn
16% of 3231 decks
+14% synergy
Hickory Woodlot
15% of 3231 decks
+14% synergy
Rogue's Passage
14% of 6199 decks
-6% synergy
Peat Bog
13% of 2737 decks
+13% synergy
Bojuka Bog
13% of 2737 decks
-17% synergy
Temple of the False God
12% of 6199 decks
+3% synergy
Mage-Ring Network
11% of 6199 decks
+10% synergy
Remote Farm
9% of 6199 decks
+9% synergy
Sandstone Needle
9% of 766 decks
+9% synergy
Saprazzan Skerry
9% of 6199 decks
+9% synergy
Mystic Sanctuary
8% of 6199 decks
-3% synergy
Tyrite Sanctum
8% of 6199 decks
+6% synergy
Interplanar Beacon
8% of 6199 decks
+7% synergy
Boseiju, Who Endures
7% of 3231 decks
-11% synergy
Celestial Colonnade
7% of 6199 decks
+6% synergy
Yavimaya, Cradle of Growth
7% of 6199 decks
-2% synergy
Rushwood Grove
6% of 3231 decks
+6% synergy
Subterranean Hangar
6% of 2737 decks
+6% synergy
Mercadian Bazaar
6% of 766 decks
+6% synergy
Otawara, Soaring City
6% of 6199 decks
-11% synergy
Diamond City
6% of 4514 decks
+5% synergy
Restless Anchorage
5% of 5273 decks
+3% synergy
Urborg, Tomb of Yawgmoth
5% of 6199 decks
-4% synergy
Bottomless Vault
5% of 2737 decks
+5% synergy
Castle Vantress
5% of 6199 decks
+1% synergy
Hollow Trees
5% of 3231 decks
+5% synergy
Mana Artifacts
Sol Ring
74% of 6199 decks
-10% synergy
Arcane Signet
63% of 6199 decks
-10% synergy
Everflowing Chalice
36% of 6199 decks
+31% synergy
Astral Cornucopia
31% of 6199 decks
+30% synergy
Azorius Signet
27% of 6199 decks
+2% synergy
Replicating Ring
25% of 6199 decks
+24% synergy
Chromatic Lantern
19% of 6199 decks
+9% synergy
Fellwar Stone
18% of 6199 decks
-3% synergy
Thought Vessel
16% of 6199 decks
-1% synergy
Izzet Signet
16% of 766 decks
-11% synergy
Talisman of Progress
15% of 6199 decks
-10% synergy
Boros Signet
14% of 766 decks
-8% synergy
Midnight Clock
13% of 6199 decks
+8% synergy
Pentad Prism
10% of 6199 decks
+10% synergy
Orzhov Signet
9% of 2737 decks
-17% synergy
Talisman of Creativity
9% of 766 decks
-20% synergy
Dimir Signet
9% of 2737 decks
-19% synergy
Empowered Autogenerator
9% of 6199 decks
+9% synergy
Staff of Compleation
9% of 6199 decks
+7% synergy
Talisman of Conviction
8% of 766 decks
-16% synergy
Simic Signet
8% of 3231 decks
-5% synergy
Glistening Sphere
7% of 6199 decks
+7% synergy
Coalition Relic
7% of 6199 decks
+6% synergy
Aetheric Amplifier
6% of 2002 decks
+5% synergy
Golgari Signet
5% of 2318 decks
-6% synergy
Sky Diamond
5% of 6199 decks
+1% synergy
Decanter of Endless Water
5% of 6199 decks
+1% synergy
Strixhaven Stadium
5% of 6199 decks
+5% synergy
Pyramid of the Pantheon
5% of 6199 decks
+5% synergy
Timeless Lotus
5% of 347 decks
-6% synergy
Talisman of Dominance
5% of 2737 decks
-27% synergy
Lands
Command Tower
83% of 6199 decks
+8% synergy
Seaside Citadel
42% of 3231 decks
+16% synergy
Exotic Orchard
41% of 6199 decks
+5% synergy
Arcane Sanctum
39% of 2737 decks
+11% synergy
Prairie Stream
38% of 6199 decks
+4% synergy
Vivid Grove
38% of 3231 decks
+36% synergy
Mystic Monastery
35% of 766 decks
+7% synergy
Opulent Palace
35% of 2318 decks
+7% synergy
Sandsteppe Citadel
33% of 2318 decks
+7% synergy
Azorius Chancery
31% of 6199 decks
+17% synergy
Spara's Headquarters
30% of 3231 decks
+1% synergy
Hallowed Fountain
29% of 6199 decks
-11% synergy
Glacial Fortress
28% of 6199 decks
-0% synergy
Zagoth Triome
28% of 2318 decks
-1% synergy
Indatha Triome
28% of 2318 decks
-1% synergy
Vivid Marsh
26% of 2737 decks
+26% synergy
Breeding Pool
26% of 3231 decks
-14% synergy
Raffine's Tower
25% of 2737 decks
-0% synergy
Overgrown Tomb
25% of 2318 decks
-16% synergy
Temple Garden
25% of 3231 decks
-14% synergy
Watery Grave
25% of 2737 decks
-15% synergy
Godless Shrine
23% of 2737 decks
-17% synergy
Port Town
23% of 6199 decks
+8% synergy
Canopy Vista
23% of 3231 decks
-14% synergy
Temple of Enlightenment
23% of 6199 decks
+6% synergy
Evolving Wilds
22% of 6199 decks
+1% synergy
Skycloud Expanse
22% of 6199 decks
+9% synergy
Vivid Creek
21% of 6199 decks
+20% synergy
Sea of Clouds
20% of 6199 decks
-5% synergy
Path of Ancestry
20% of 6199 decks
-2% synergy
Vivid Meadow
20% of 6199 decks
+19% synergy
The World Tree
19% of 347 decks
-12% synergy
Izzet Boilerworks
18% of 766 decks
+3% synergy
Adarkar Wastes
18% of 6199 decks
-3% synergy
Terramorphic Expanse
18% of 6199 decks
+2% synergy
Deserted Beach
18% of 6199 decks
+1% synergy
Boros Garrison
17% of 766 decks
+3% synergy
Flooded Strand
17% of 6199 decks
+6% synergy
Raugrin Triome
17% of 766 decks
-8% synergy
Rejuvenating Springs
17% of 3231 decks
-12% synergy
Steam Vents
16% of 766 decks
-22% synergy
Clifftop Retreat
16% of 766 decks
-16% synergy
Shivan Reef
16% of 766 decks
-12% synergy
Battlefield Forge
16% of 766 decks
-11% synergy
Myriad Landscape
16% of 6199 decks
-2% synergy
Irrigated Farmland
15% of 6199 decks
+7% synergy
Bountiful Promenade
15% of 3231 decks
-8% synergy
Vivid Crag
15% of 766 decks
+14% synergy
Crumbling Necropolis
15% of 365 decks
-16% synergy
Sulfur Falls
14% of 766 decks
-19% synergy