Invigorating Hot Spring (Card)
Invigorating Hot Spring
In 24232 decks
3% of 841426 decks
Feb 28, 2024
Recross the Paths - Wort, the Raidmother
Give a Lorwyn goblin commander a new lease of life with this Karlov Manor card!
Jan 5, 2023
Sift Through Sands - Kibo, Uktabi Prince & Vazi, Keen Negotiator
Would you give your opponents free mana if it meant your creatures got bigger? Kibo, Uktabi Prince & Vazi, Keen Negotiator sure would!
Top Commanders (18)
Chishiro, the Shattered Blade
72.58% of 6230 decks
4522 decks
Blaster, Combat DJ
59.76% of 492 decks
294 decks
Migloz, Maze Crusher
48.19% of 498 decks
240 decks
Kibo, Uktabi Prince
43.07% of 7107 decks
3061 decks
Me, the Immortal
43.02% of 960 decks
413 decks
Grumgully, the Generous
40.84% of 1244 decks
508 decks
Halana and Alena, Partners
37.71% of 2530 decks
954 decks
Agatha of the Vile Cauldron
35.73% of 2645 decks
945 decks
Bright-Palm, Soul Awakener
35.17% of 2343 decks
824 decks
Minsc & Boo, Timeless Heroes
31.41% of 5568 decks
1749 decks
Shalai and Hallar
19.49% of 6538 decks
1274 decks
Hallar, the Firefletcher
18.47% of 1532 decks
283 decks
Rosheen Meanderer
18.37% of 849 decks
156 decks
The Swarmlord
16.92% of 1938 decks
328 decks
Aragorn, Hornburg Hero
16.07% of 1070 decks
172 decks
Marath, Will of the Wild
14.16% of 2337 decks
331 decks
Magus Lucea Kane
12.89% of 8620 decks
1111 decks
Rocco, Street Chef
7.92% of 4507 decks
357 decks
New Cards (5)
Byrke, Long Ear of the Law
100% of 14 decks
+89% synergy
Annie Joins Up
42% of 64 decks
+38% synergy
Goldvein Hydra
39% of 183 decks
+35% synergy
Mutational Advantage
35% of 184 decks
+31% synergy
Repulsive Mutation
32% of 420 decks
+31% synergy
High Synergy Cards (10)
Rhythm of the Wild
62% of 24225 decks
+56% synergy
Winged Hive Tyrant
54% of 2995 decks
+54% synergy
Conclave Mentor
51% of 4675 decks
+50% synergy
Kami of Whispered Hopes
54% of 13153 decks
+50% synergy
Zoanthrope
47% of 2995 decks
+47% synergy
Hardened Scales
50% of 24226 decks
+46% synergy
Inspiring Call
49% of 24226 decks
+46% synergy
Forgotten Ancient
46% of 24226 decks
+43% synergy
Kutzil, Malamet Exemplar
48% of 1359 decks
+43% synergy
Abzan Falconer
42% of 4677 decks
+41% synergy
Top Cards (10)
Swords to Plowshares
62% of 4677 decks
+33% synergy
Beast Within
57% of 24226 decks
+38% synergy
Rampant Growth
53% of 24226 decks
+37% synergy
Cultivate
52% of 24226 decks
+30% synergy
Swiftfoot Boots
49% of 24229 decks
+20% synergy
Kodama's Reach
48% of 24226 decks
+33% synergy
Chaos Warp
44% of 24228 decks
+29% synergy
Ozolith, the Shattered Spire
44% of 13153 decks
+40% synergy
Generous Gift
41% of 4677 decks
+29% synergy
Kodama of the West Tree
40% of 24226 decks
+37% synergy
Creatures (50)
Rishkar, Peema Renegade
38% of 24226 decks
+36% synergy
Mikaeus, the Lunarch
37% of 4677 decks
+36% synergy
Goblin Anarchomancer
37% of 24225 decks
+34% synergy
Champion of Lambholt
36% of 24226 decks
+33% synergy
Hamza, Guardian of Arashin
36% of 4675 decks
+35% synergy
Dusk Legion Duelist
36% of 3688 decks
+35% synergy
Good-Fortune Unicorn
35% of 4675 decks
+34% synergy
Danny Pink
34% of 1077 decks
+33% synergy
Guardian Scalelord
34% of 3670 decks
+33% synergy
Shalai and Hallar
33% of 3668 decks
+33% synergy
Halana and Alena, Partners
33% of 24225 decks
+32% synergy
Grumgully, the Generous
32% of 24225 decks
+31% synergy
Sovereign Okinec Ahau
31% of 1432 decks
+30% synergy
Bristly Bill, Spine Sower
31% of 272 decks
+28% synergy
Bright-Palm, Soul Awakener
30% of 3573 decks
+29% synergy
Taurean Mauler
30% of 24228 decks
+28% synergy
Hydroid Krasis
29% of 3448 decks
+28% synergy
Ravener
29% of 2996 decks
+29% synergy
Tyranid Prime
29% of 2996 decks
+28% synergy
Ignoble Hierarch
29% of 1924 decks
+26% synergy
Akki Battle Squad
28% of 23770 decks
+27% synergy
Herald of Secret Streams
28% of 3448 decks
+26% synergy
Incubation Druid
27% of 24226 decks
+25% synergy
Trygon Prime
27% of 2996 decks
+27% synergy
Krenko, Tin Street Kingpin
26% of 24228 decks
+24% synergy
Lae'zel, Vlaakith's Champion
26% of 4382 decks
+25% synergy
Abzan Battle Priest
25% of 4677 decks
+25% synergy
Malanthrope
25% of 2996 decks
+25% synergy
Anim Pakal, Thousandth Moon
25% of 1191 decks
+23% synergy
Loyal Guardian
25% of 24226 decks
+24% synergy
Sakura-Tribe Elder
25% of 24226 decks
+15% synergy
Fertilid
23% of 24226 decks
+21% synergy
Thundering Raiju
21% of 24228 decks
+21% synergy
Aragorn, Hornburg Hero
21% of 1125 decks
+20% synergy
Llanowar Elves
21% of 24226 decks
+10% synergy
Sunscorch Regent
20% of 4677 decks
+19% synergy
Evolution Sage
20% of 24226 decks
+17% synergy
Gyre Sage
20% of 24226 decks
+18% synergy
Defiler of Vigor
20% of 19698 decks
+18% synergy
Managorger Hydra
20% of 24226 decks
+18% synergy
Corpsejack Menace
20% of 1924 decks
+19% synergy
Tolsimir, Midnight's Light
20% of 494 decks
+18% synergy
Renata, Called to the Hunt
19% of 24226 decks
+18% synergy
Botanical Brawler
19% of 3573 decks
+19% synergy
Marchesa, the Black Rose
19% of 533 decks
+18% synergy
Juniper Order Ranger
19% of 4675 decks
+18% synergy
Gearbane Orangutan
18% of 2574 decks
+18% synergy
Animar, Soul of Elements
18% of 3447 decks
+17% synergy
Arwen, Weaver of Hope
18% of 9335 decks
+16% synergy
Master Biomancer
17% of 3448 decks
+16% synergy
Instants (50)
Path to Exile
32% of 4677 decks
+12% synergy
Silkguard
31% of 23855 decks
+30% synergy
Heroic Intervention
30% of 24226 decks
+17% synergy
Return of the Wildspeaker
29% of 24226 decks
+23% synergy
Counterspell
24% of 3448 decks
+3% synergy
Boros Charm
21% of 4677 decks
+15% synergy
Dromoka's Command
20% of 4675 decks
+20% synergy
Atomize
20% of 41 decks
+15% synergy
Unbreakable Formation
19% of 4677 decks
+16% synergy
Terminate
19% of 1924 decks
+14% synergy
No More Lies
18% of 38 decks
+17% synergy
Hunter's Insight
18% of 24226 decks
+16% synergy
Growth Spiral
17% of 3448 decks
+12% synergy
Assassin's Trophy
16% of 1924 decks
+10% synergy
Putrefy
16% of 1924 decks
+12% synergy
Riveteers Charm
15% of 1825 decks
+15% synergy
Abzan Charm
15% of 546 decks
+15% synergy
Pull from Tomorrow
15% of 3448 decks
+13% synergy
Aetherize
15% of 3448 decks
+12% synergy
Ripples of Potential
15% of 775 decks
+12% synergy
Snakeskin Veil
14% of 24226 decks
+12% synergy
Nature's Claim
14% of 24226 decks
+8% synergy
Cyclonic Rift
14% of 3448 decks
-1% synergy
Slip Out the Back
14% of 3312 decks
+12% synergy
Return to Nature
13% of 24226 decks
+10% synergy
Semester's End
13% of 4677 decks
+12% synergy
Stroke of Midnight
13% of 1856 decks
+6% synergy
Negate
13% of 3448 decks
+2% synergy
Abrade
13% of 24228 decks
+7% synergy
Demand Answers
12% of 1902 decks
+6% synergy
Starstorm
12% of 24228 decks
+11% synergy
Unite the Coalition
12% of 347 decks
+11% synergy
Tamiyo's Safekeeping
11% of 23768 decks
+8% synergy
Gaea's Gift
11% of 17770 decks
+10% synergy
Deadly Dispute
11% of 1924 decks
+5% synergy
Krosan Grip
11% of 24226 decks
+6% synergy
Brokers Charm
10% of 496 decks
+10% synergy
Despark
10% of 546 decks
+6% synergy
Archdruid's Charm
10% of 2404 decks
+5% synergy
Arcane Denial
10% of 3448 decks
+1% synergy
Naya Charm
10% of 4675 decks
+9% synergy
Teferi's Protection
10% of 4677 decks
+0% synergy
Dovin's Veto
9% of 533 decks
+5% synergy
Tyvar's Stand
9% of 15268 decks
+6% synergy
Invigorating Surge
9% of 24226 decks
+8% synergy
Inventory Management
9% of 227 decks
+6% synergy
Anguished Unmaking
9% of 546 decks
+3% synergy
Fierce Guardianship
9% of 3448 decks
-0% synergy
Eladamri's Call
8% of 4675 decks
+6% synergy
An Offer You Can't Refuse
8% of 3312 decks
-2% synergy
Sorceries (50)
Blasphemous Act
35% of 24228 decks
+19% synergy
Rishkar's Expertise
35% of 24226 decks
+30% synergy
Nature's Lore
35% of 24226 decks
+20% synergy
Farseek
30% of 24226 decks
+14% synergy
Decimate
30% of 24225 decks
+28% synergy
Damning Verdict
28% of 4556 decks
+27% synergy
Wave Goodbye
25% of 775 decks
+23% synergy
Shamanic Revelation
25% of 24226 decks
+20% synergy
Three Visits
23% of 24226 decks
+11% synergy
Vandalblast
19% of 24228 decks
+11% synergy
Requisition Raid
18% of 72 decks
+15% synergy
Curse of the Swine
17% of 3448 decks
+15% synergy
Chain Reaction
17% of 24228 decks
+14% synergy
Doppelgang
14% of 438 decks
+13% synergy
Hull Breach
14% of 24225 decks
+13% synergy
Anzrag's Rampage
13% of 1902 decks
+12% synergy
Harmonize
13% of 24226 decks
+8% synergy
Blue Sun's Twilight
12% of 2290 decks
+11% synergy
Unnatural Restoration
12% of 15362 decks
+9% synergy
Painful Truths
10% of 1924 decks
+9% synergy
Vastwood Surge
10% of 24226 decks
+10% synergy
Smoke Spirits' Aid
10% of 23770 decks
+10% synergy
Slime Against Humanity
10% of 2404 decks
+9% synergy
Austere Command
10% of 4677 decks
+4% synergy
Soul's Majesty
9% of 24226 decks
+8% synergy
Witch's Mark
9% of 6361 decks
+8% synergy
Bala Ged Recovery
9% of 24226 decks
+4% synergy
Farewell
9% of 4639 decks
+2% synergy
Jeska's Will
8% of 24228 decks
-0% synergy
Red Sun's Twilight
8% of 15591 decks
+7% synergy
Hell to Pay
8% of 92 decks
+3% synergy
Read the Bones
8% of 1924 decks
+3% synergy
Flotsam // Jetsam
8% of 40 decks
+7% synergy
Finale of Revelation
7% of 3448 decks
+6% synergy
Victimize
7% of 1924 decks
+1% synergy
Chandra's Ignition
7% of 24228 decks
+5% synergy
Overwhelming Stampede
7% of 24226 decks
+4% synergy
Explore
7% of 24226 decks
+3% synergy
Iridian Maelstrom
7% of 347 decks
+6% synergy
Demonic Tutor
6% of 1924 decks
-6% synergy
Thirsting Roots
6% of 14515 decks
+5% synergy
Conflux
6% of 455 decks
+6% synergy
Tezzeret's Gambit
6% of 3448 decks
+4% synergy
Eerie Ultimatum
6% of 546 decks
+5% synergy
Merciless Eviction
6% of 546 decks
+5% synergy
Ruinous Ultimatum
6% of 546 decks
+4% synergy
Skyshroud Claim
6% of 24226 decks
+1% synergy
Toxic Deluge
6% of 1924 decks
-3% synergy
Time Wipe
6% of 533 decks
+4% synergy
Mass Manipulation
6% of 3448 decks
+5% synergy
Utility Artifacts (33)
The Ozolith
27% of 24229 decks
+23% synergy
Power Fist
21% of 838 decks
+18% synergy
Lightning Greaves
20% of 24229 decks
-5% synergy
Blackblade Reforged
20% of 24229 decks
+16% synergy
Mage Slayer
19% of 24225 decks
+18% synergy
Collector's Cage
16% of 37 decks
+16% synergy
The Great Henge
15% of 24226 decks
+11% synergy
Agatha's Soul Cauldron
14% of 7695 decks
+11% synergy
Lavaspur Boots
13% of 92 decks
+8% synergy
Agent's Toolkit
13% of 3312 decks
+12% synergy
Sword of Vengeance
12% of 24229 decks
+11% synergy
Tarrian's Soulcleaver
12% of 5118 decks
+9% synergy
Andúril, Narsil Reforged
12% of 4454 decks
+10% synergy
The Skullspore Nexus
11% of 3932 decks
+6% synergy
Fireshrieker
11% of 24229 decks
+9% synergy
Sword of Wealth and Power
9% of 92 decks
+1% synergy
Maskwood Nexus
9% of 24229 decks
+6% synergy
Liquimetal Coating
9% of 24229 decks
+8% synergy
Monkey Cage
9% of 24229 decks
+8% synergy
Embercleave
9% of 24228 decks
+7% synergy
Door to Nothingness
8% of 455 decks
+8% synergy
Bone Sabres
8% of 18682 decks
+7% synergy
Sting, the Glinting Dagger
7% of 9444 decks
+5% synergy
Mithril Coat
7% of 9537 decks
+0% synergy
Pre-War Formalwear
7% of 223 decks
+5% synergy
Swashbuckler's Whip
7% of 3934 decks
+6% synergy
Bloodforged Battle-Axe
6% of 24229 decks
+5% synergy
Basilisk Collar
6% of 24229 decks
+3% synergy
Sword of Truth and Justice
6% of 24229 decks
+4% synergy
Sword of the Animist
6% of 24229 decks
+1% synergy
Nuka-Cola Vending Machine
6% of 838 decks
-3% synergy
Fractal Harness
5% of 24226 decks
+5% synergy
Lost Jitte
5% of 92 decks
+4% synergy
Enchantments (50)
Temur Ascendancy
34% of 3447 decks
+32% synergy
Court of Garenbrig
32% of 7210 decks
+30% synergy
Felidar Retreat
32% of 4677 decks
+29% synergy
Bred for the Hunt
32% of 3448 decks
+31% synergy
The First Tyrannic War
32% of 3000 decks
+31% synergy
All Will Be One
27% of 15125 decks
+25% synergy
Tribute to the World Tree
26% of 13790 decks
+21% synergy
Leyline of the Guildpact
25% of 44 decks
+23% synergy
Together Forever
24% of 4677 decks
+23% synergy
Garruk's Uprising
23% of 24226 decks
+17% synergy
Simic Ascendancy
23% of 3448 decks
+21% synergy
Well Rested
22% of 838 decks
+20% synergy
Brokers Ascendancy
22% of 491 decks
+21% synergy
Mayael's Aria
22% of 4675 decks
+22% synergy
Uncivil Unrest
21% of 13420 decks
+20% synergy
Bear Umbra
21% of 24226 decks
+19% synergy
Snake Umbra
20% of 24226 decks
+19% synergy
Branching Evolution
19% of 24226 decks
+17% synergy
Cathars' Crusade
19% of 4677 decks
+16% synergy
Rancor
18% of 24226 decks
+16% synergy
One with the Kami
16% of 23855 decks
+15% synergy
Ordeal of Nylea
15% of 24226 decks
+14% synergy
Concord with the Kami
13% of 23855 decks
+13% synergy
Master Chef
13% of 20943 decks
+12% synergy
Wild Growth
13% of 24226 decks
+8% synergy
The Kami War
12% of 455 decks
+12% synergy
Virtue of Loyalty
12% of 1816 decks
+10% synergy
Viridian Revel
12% of 24226 decks
+11% synergy
Unquenchable Fury
12% of 23770 decks
+12% synergy
Hydra's Growth
12% of 24226 decks
+11% synergy
Kenrith's Transformation
12% of 24226 decks
+8% synergy
Doubling Season
11% of 24226 decks
+7% synergy
Resourceful Defense
11% of 4548 decks
+10% synergy
Rhystic Study
11% of 3448 decks
-3% synergy
Lost in the Maze
11% of 349 decks
+10% synergy
Fight Rigging
11% of 22292 decks
+10% synergy
Hadana's Climb
11% of 3448 decks
+10% synergy
Primal Empathy
10% of 3448 decks
+10% synergy
Rising of the Day
10% of 9337 decks
+7% synergy
Maelstrom Nexus
9% of 455 decks
+9% synergy
Unnatural Growth
9% of 24226 decks
+7% synergy
Case of the Ransacked Lab
9% of 314 decks
+7% synergy
Colossal Majesty
9% of 24226 decks
+7% synergy
Guardian Project
9% of 24226 decks
+5% synergy
Strong Back
9% of 838 decks
+6% synergy
Shadow in the Warp
8% of 18681 decks
+7% synergy
Elemental Mastery
8% of 24228 decks
+8% synergy
Fires of Yavimaya
8% of 24225 decks
+7% synergy
Utopia Sprawl
8% of 24226 decks
+4% synergy
Widespread Thieving
8% of 419 decks
+7% synergy
Battles (1)
Invasion of Alara
11% of 226 decks
+11% synergy
Planeswalkers (5)
Kiora, Behemoth Beckoner
21% of 3448 decks
+20% synergy
Ajani, the Greathearted
9% of 4675 decks
+8% synergy
Domri, Anarch of Bolas
8% of 24225 decks
+7% synergy
Quintorius Kand
5% of 1458 decks
+4% synergy
Nissa, Voice of Zendikar
5% of 24226 decks
+4% synergy
Utility Lands (24)
Gavony Township
46% of 4675 decks
+44% synergy
Kessig Wolf Run
36% of 24225 decks
+32% synergy
Rogue's Passage
29% of 24229 decks
+11% synergy
Oran-Rief, the Vastwood
28% of 24226 decks
+25% synergy
Mosswort Bridge
19% of 24226 decks
+14% synergy
Raging Ravine
18% of 24225 decks
+18% synergy
Reliquary Tower
18% of 24229 decks
-10% synergy
Bojuka Bog
17% of 1924 decks
+1% synergy
Karn's Bastion
16% of 24229 decks
+11% synergy
Boseiju, Who Endures
14% of 24226 decks
+5% synergy
Yavimaya, Cradle of Growth
14% of 24229 decks
+5% synergy
Llanowar Reborn
11% of 24226 decks
+10% synergy
Drannith Ruins
10% of 10507 decks
+9% synergy
Skarrg, the Rage Pits
10% of 24225 decks
+9% synergy
Treetop Village
9% of 24226 decks
+9% synergy
Restless Bivouac
9% of 1752 decks
+8% synergy
Temple of the False God
9% of 24229 decks
-1% synergy
Otawara, Soaring City
8% of 3448 decks
-0% synergy
Takenuma, Abandoned Mire
8% of 1924 decks
+2% synergy
Minamo, School at Water's Edge
6% of 3448 decks
+5% synergy
Minas Tirith
6% of 2236 decks
+0% synergy
Tyrite Sanctum
6% of 24229 decks
+4% synergy
Castle Garenbrig
6% of 24226 decks
+3% synergy
Eiganjo, Seat of the Empire
5% of 4677 decks
+0% synergy
Mana Artifacts (19)
Sol Ring
82% of 24229 decks
-2% synergy
Arcane Signet
71% of 24229 decks
+0% synergy
Gruul Signet
20% of 24225 decks
+17% synergy
Golgari Signet
13% of 1924 decks
+11% synergy
Rakdos Signet
13% of 1924 decks
+6% synergy
Commander's Sphere
12% of 24229 decks
-5% synergy
Liquimetal Torque
11% of 24229 decks
+7% synergy
Simic Signet
10% of 3448 decks
+7% synergy
Timeless Lotus
8% of 338 decks
+7% synergy
Boros Signet
8% of 4677 decks
+2% synergy
Izzet Signet
8% of 3447 decks
+1% synergy
Selesnya Signet
8% of 4675 decks
+6% synergy
Talisman of Impulse
7% of 24225 decks
+6% synergy
Talisman of Curiosity
7% of 3448 decks
+5% synergy
Talisman of Resilience
7% of 1924 decks
+5% synergy
Patriar's Seal
6% of 21032 decks
+4% synergy
Fellwar Stone
6% of 24229 decks
-15% synergy
Talisman of Unity
6% of 4675 decks
+4% synergy
Talisman of Creativity
6% of 3447 decks
-1% synergy
Lands (50)
Command Tower
88% of 24229 decks
+15% synergy
Cinder Glade
70% of 24225 decks
+62% synergy
Frontier Bivouac
58% of 3447 decks
+55% synergy
Jungle Shrine
57% of 4675 decks
+53% synergy
Canopy Vista
56% of 4675 decks
+48% synergy
Game Trail
51% of 24225 decks
+48% synergy
Exotic Orchard
43% of 24229 decks
+9% synergy
Temple of Abandon
40% of 24225 decks
+37% synergy
Jetmir's Garden
38% of 4546 decks
+34% synergy
Rockfall Vale
38% of 24225 decks
+34% synergy
Ziatora's Proving Ground
38% of 1803 decks
+34% synergy
Gruul Turf
38% of 24225 decks
+34% synergy
Ketria Triome
36% of 3447 decks
+32% synergy
Savage Lands
36% of 1924 decks
+34% synergy
Mossfire Valley
36% of 24225 decks
+33% synergy
Stomping Ground
34% of 24225 decks
+25% synergy
Rootbound Crag
34% of 24225 decks
+30% synergy
Breeding Pool
33% of 3448 decks
+24% synergy
Temple of Mystery
32% of 3448 decks
+28% synergy
Fortified Village
31% of 4675 decks
+28% synergy
Temple Garden
31% of 4675 decks
+22% synergy
Steam Vents
30% of 3447 decks
+21% synergy
Overgrown Tomb
30% of 1924 decks
+20% synergy
Spire Garden
30% of 24225 decks
+24% synergy
Smoldering Marsh
29% of 1924 decks
+22% synergy
Temple of Epiphany
28% of 3447 decks
+24% synergy
Commercial District
28% of 1902 decks
+23% synergy
Sungrass Prairie
27% of 4675 decks
+25% synergy
Rejuvenating Springs
27% of 3448 decks
+21% synergy
Yavimaya Coast
27% of 3448 decks
+21% synergy
Evolving Wilds
27% of 24229 decks
+5% synergy
The World Tree
26% of 455 decks
+24% synergy
Sacred Foundry
26% of 4677 decks
+18% synergy
Temple of Plenty
26% of 4675 decks
+23% synergy
Furycalm Snarl
25% of 4677 decks
+23% synergy
Karplusan Forest
25% of 24225 decks
+22% synergy
Blood Crypt
25% of 1924 decks
+16% synergy
Temple of Triumph
25% of 4677 decks
+21% synergy
Opal Palace
24% of 24229 decks
+21% synergy
Spara's Headquarters
24% of 491 decks
+20% synergy
Bountiful Promenade
24% of 4675 decks
+18% synergy
Hedge Maze
22% of 314 decks
+17% synergy
Hinterland Harbor
22% of 3448 decks
+17% synergy
Indatha Triome
22% of 546 decks
+18% synergy
Training Center
22% of 3447 decks
+16% synergy
Path of Ancestry
21% of 24229 decks
+2% synergy
Dreamroot Cascade
21% of 3448 decks
+17% synergy
Underground Mortuary
21% of 116 decks
+15% synergy
Shivan Reef
20% of 3447 decks
+15% synergy
Sunpetal Grove
20% of 4675 decks
+15% synergy