Greater Sandwurm (Card)
Greater Sandwurm
In 6499 decks
0% of 2643455 decks
Jan 23, 2024
How They Brew It - Ellie and Alan, Paleontologists: The Cycle of Life
Ellie and Alan have discovered the secret to casting big spells from your library for free - and it all has to do with the cycle of life.
New Commanders
Venom, Deadly Devourer
20.63% of 315 decks
65 decks
Top Commanders
Baru, Wurmspeaker
56.00% of 4036 decks
2260 decks
Ellie and Alan, Paleontologists
47.77% of 1907 decks
911 decks
Hazezon, Shaper of Sand
3.80% of 8335 decks
317 decks
Codie, Vociferous Codex
3.58% of 5890 decks
211 decks
Atla Palani, Nest Tender
1.21% of 16211 decks
196 decks
Kenrith, the Returned King
0.80% of 23725 decks
189 decks
The Mimeoplasm
1.95% of 6141 decks
120 decks
Imoti, Celebrant of Bounty
2.39% of 4936 decks
118 decks
Kydele, Chosen of Kruphix // Ravos, Soultender
27.25% of 378 decks
103 decks
Mayael the Anima
2.46% of 3174 decks
78 decks
Goreclaw, Terror of Qal Sisma
1.77% of 4301 decks
76 decks
Jolrael, Mwonvuli Recluse
13.00% of 523 decks
68 decks
Grothama, All-Devouring
4.55% of 1450 decks
66 decks
Karador, Ghost Chieftain
0.91% of 5592 decks
51 decks
The Beamtown Bullies
0.87% of 5262 decks
46 decks
Kona, Rescue Beastie
0.72% of 4830 decks
35 decks
Svella, Ice Shaper
1.24% of 2746 decks
34 decks
New Cards
Chitin Gravestalker
18% of 332 decks
+18% synergy
Agonasaur Rex
15% of 1393 decks
+14% synergy
Shefet Archfiend
14% of 344 decks
+14% synergy
Hazard of the Dunes
8% of 1287 decks
+8% synergy
Magmakin Artillerist
7% of 303 decks
+6% synergy
High Synergy Cards
Striped Riverwinder
58% of 2138 decks
+57% synergy
Marauding Brinefang
54% of 1826 decks
+54% synergy
Archfiend of Ifnir
56% of 1427 decks
+54% synergy
Angel of the Ruins
51% of 2544 decks
+48% synergy
Colossal Skyturtle
49% of 2138 decks
+46% synergy
Vizier of Tumbling Sands
47% of 2138 decks
+46% synergy
Void Beckoner
46% of 1427 decks
+45% synergy
Sandwurm Convergence
45% of 6500 decks
+44% synergy
Curator of Mysteries
43% of 2138 decks
+43% synergy
Troll of Khazad-dûm
44% of 1341 decks
+43% synergy
Top Cards
Cultivate
54% of 6500 decks
+9% synergy
Garruk's Uprising
50% of 6500 decks
+34% synergy
Rampant Growth
45% of 6500 decks
+10% synergy
Swords to Plowshares
43% of 2544 decks
-19% synergy
Impervious Greatwurm
43% of 6500 decks
+42% synergy
Street Wraith
43% of 1427 decks
+42% synergy
Beast Within
42% of 6500 decks
+5% synergy
Kodama's Reach
42% of 6500 decks
+11% synergy
Engulfing Slagwurm
41% of 6500 decks
+41% synergy
Mirrorshell Crab
41% of 2138 decks
+41% synergy
Game Changers
Demonic Tutor
8% of 1427 decks
-13% synergy
Rhystic Study
7% of 2138 decks
-19% synergy
Cyclonic Rift
7% of 2138 decks
-20% synergy
Vampiric Tutor
6% of 1427 decks
-11% synergy
Enlightened Tutor
6% of 2544 decks
-11% synergy
Smothering Tithe
6% of 2544 decks
-18% synergy
Creatures
Pelakka Wurm
41% of 6500 decks
+41% synergy
Kellan, the Kid
41% of 1070 decks
+39% synergy
Drownyard Lurker
41% of 1188 decks
+41% synergy
Bellowing Tanglewurm
40% of 6500 decks
+39% synergy
Worldspine Wurm
38% of 6500 decks
+37% synergy
Eternal Dragon
37% of 2544 decks
+37% synergy
Horror of the Broken Lands
37% of 1427 decks
+37% synergy
Sifter Wurm
37% of 6500 decks
+36% synergy
Penumbra Wurm
37% of 6500 decks
+36% synergy
Bookwurm
36% of 6500 decks
+36% synergy
The Balrog of Moria
35% of 688 decks
+34% synergy
Defiler of Vigor
35% of 6500 decks
+32% synergy
Daggermaw Megalodon
34% of 922 decks
+34% synergy
Lunar Hatchling
34% of 1864 decks
+34% synergy
Bramble Wurm
34% of 6500 decks
+33% synergy
Plated Slagwurm
34% of 6500 decks
+33% synergy
Imoti, Celebrant of Bounty
32% of 2138 decks
+29% synergy
Elderscale Wurm
32% of 6500 decks
+32% synergy
Eagles of the North
32% of 2450 decks
+31% synergy
Emergent Woodwurm
32% of 6499 decks
+31% synergy
Titanoth Rex
32% of 6500 decks
+30% synergy
Panglacial Wurm
31% of 6500 decks
+31% synergy
Imposing Vantasaur
31% of 2544 decks
+31% synergy
Llanowar Elves
31% of 6500 decks
+10% synergy
Beanstalk Wurm
29% of 5739 decks
+29% synergy
Dirtcowl Wurm
29% of 6500 decks
+29% synergy
Scion of Darkness
29% of 1427 decks
+29% synergy
Wurmcoil Engine
29% of 6500 decks
+27% synergy
Mulldrifter
29% of 2138 decks
+23% synergy
Soaring Sandwing
28% of 2208 decks
+28% synergy
Helga, Skittish Seer
28% of 843 decks
+26% synergy
Nulldrifter
28% of 1272 decks
+26% synergy
Krosan Tusker
27% of 6500 decks
+27% synergy
Kiora's Follower
27% of 2138 decks
+21% synergy
Oliphaunt
26% of 1569 decks
+25% synergy
Quilled Greatwurm
25% of 2221 decks
+23% synergy
Herald of the Forgotten
25% of 2544 decks
+25% synergy
Elvish Mystic
25% of 6500 decks
+8% synergy
Nimble Obstructionist
25% of 2138 decks
+24% synergy
Colossal Rattlewurm
25% of 4150 decks
+24% synergy
Windcaller Aven
24% of 2138 decks
+24% synergy
Symbiotic Wurm
24% of 6500 decks
+24% synergy
Monstrosity of the Lake
24% of 2042 decks
+23% synergy
Nezahal, Primal Tide
23% of 2138 decks
+20% synergy
Elfhame Wurm
23% of 6500 decks
+23% synergy
Carnage Wurm
23% of 6500 decks
+23% synergy
Gloomfang Mauler
23% of 1427 decks
+23% synergy
Lava Serpent
23% of 1661 decks
+23% synergy
Vile Manifestation
23% of 1427 decks
+23% synergy
Soul Swallower
23% of 6500 decks
+22% synergy
Instants
Path to Exile
37% of 2544 decks
-9% synergy
Frantic Search
30% of 2138 decks
+18% synergy
Return of the Wildspeaker
27% of 6500 decks
+14% synergy
Generous Gift
25% of 2544 decks
-0% synergy
Ram Through
25% of 6500 decks
+21% synergy
Heroic Intervention
23% of 6500 decks
-6% synergy
Faithful Mending
20% of 1604 decks
+18% synergy
Counterspell
20% of 2138 decks
-23% synergy
Countervailing Winds
18% of 2138 decks
+18% synergy
Krosan Grip
17% of 6500 decks
+10% synergy
Ancient Excavation
17% of 854 decks
+16% synergy
Fact or Fiction
16% of 2138 decks
+10% synergy
Brainstorm
16% of 2138 decks
-4% synergy
Return to Nature
16% of 6500 decks
+10% synergy
Neutralize
15% of 2138 decks
+15% synergy
Zenith Flare
14% of 1232 decks
+14% synergy
Momentous Fall
14% of 6500 decks
+12% synergy
Entish Restoration
14% of 6134 decks
+7% synergy
Shadow of the Grave
13% of 1427 decks
+13% synergy
Growth Spiral
13% of 2138 decks
-9% synergy
Assassin's Trophy
13% of 1427 decks
-18% synergy
Harrow
12% of 6500 decks
+3% synergy
Advent of the Wurm
12% of 2544 decks
+12% synergy
Songs of the Damned
11% of 1427 decks
+10% synergy
Naya Charm
11% of 1232 decks
+4% synergy
Nature's Claim
10% of 6500 decks
+2% synergy
Chaos Warp
10% of 1661 decks
-21% synergy
Negate
10% of 2138 decks
-13% synergy
Forsake the Worldly
10% of 2544 decks
+9% synergy
Putrefy
9% of 1427 decks
-6% synergy
Grisly Salvage
9% of 1427 decks
+4% synergy
Hunter's Insight
9% of 6500 decks
+5% synergy
Wilt
9% of 6500 decks
+8% synergy
Entomb
9% of 1427 decks
+1% synergy
Boros Charm
9% of 1232 decks
-16% synergy
Fog
8% of 6500 decks
+5% synergy
Archdruid's Charm
8% of 4726 decks
+3% synergy
Stroke of Midnight
8% of 2339 decks
-2% synergy
Thrill of Possibility
8% of 1661 decks
-2% synergy
Khalni Ambush
7% of 6500 decks
+5% synergy
Sundering Growth
7% of 2544 decks
+3% synergy
Dark Ritual
7% of 1427 decks
-16% synergy
Revitalizing Repast
7% of 794 decks
-2% synergy
Sultai Charm
7% of 854 decks
+3% synergy
Wrap in Vigor
7% of 6500 decks
+5% synergy
Terminate
7% of 742 decks
-13% synergy
Tail Swipe
7% of 6500 decks
+6% synergy
Mental Journey
7% of 2138 decks
+6% synergy
Hieroglyphic Illumination
7% of 2138 decks
+6% synergy
Naturalize
6% of 6500 decks
+5% synergy
Sorceries
Living Death
34% of 1427 decks
+29% synergy
Nature's Lore
34% of 6500 decks
+2% synergy
Living End
23% of 1427 decks
+23% synergy
Windfall
23% of 2138 decks
+10% synergy
Crush of Wurms
22% of 6500 decks
+22% synergy
Three Visits
22% of 6500 decks
-3% synergy
Rishkar's Expertise
22% of 6500 decks
+11% synergy
Skyshroud Claim
20% of 6500 decks
+11% synergy
Decree of Pain
20% of 1427 decks
+17% synergy
Traverse the Outlands
20% of 6500 decks
+17% synergy
Migration Path
20% of 6500 decks
+17% synergy
Austere Command
19% of 2544 decks
+6% synergy
Eerie Ultimatum
18% of 821 decks
+6% synergy
Farseek
18% of 6500 decks
-16% synergy
Explore
16% of 6500 decks
+7% synergy
Blasphemous Act
15% of 1661 decks
-18% synergy
Faithless Looting
15% of 1661 decks
-1% synergy
Wurmcalling
15% of 6500 decks
+14% synergy
Razaketh's Rite
14% of 1427 decks
+14% synergy
Harmonize
14% of 6500 decks
+5% synergy
Last March of the Ents
14% of 6148 decks
+10% synergy
Shamanic Revelation
14% of 6500 decks
+5% synergy
Overwhelming Stampede
13% of 6500 decks
+8% synergy
Boon of the Wish-Giver
12% of 2138 decks
+12% synergy
Lórien Revealed
12% of 2042 decks
+10% synergy
Roar of the Wurm
12% of 6500 decks
+12% synergy
Buried Alive
12% of 1427 decks
+6% synergy
Rise of the Dark Realms
11% of 1427 decks
+7% synergy
Explosive Vegetation
11% of 6500 decks
+7% synergy
Demonic Dread
10% of 742 decks
+10% synergy
Akroma's Vengeance
10% of 2544 decks
+9% synergy
Nahiri's Lithoforming
9% of 1661 decks
+9% synergy
Reanimate
9% of 1427 decks
-7% synergy
Wander in Death
9% of 1427 decks
+9% synergy
Nissa's Pilgrimage
8% of 6500 decks
+7% synergy
Twilight's Call
8% of 1427 decks
+8% synergy
Careful Study
8% of 2138 decks
+7% synergy
Beneath the Sands
8% of 6500 decks
+8% synergy
Cataclysmic Prospecting
8% of 1018 decks
+8% synergy
Victimize
8% of 1427 decks
-4% synergy
Decimate
7% of 1661 decks
-1% synergy
Approach of the Second Sun
7% of 2544 decks
+4% synergy
Bala Ged Recovery
7% of 6500 decks
-2% synergy
Final Parting
7% of 1427 decks
+5% synergy
Search for Tomorrow
7% of 6500 decks
+4% synergy
Farewell
7% of 2544 decks
-6% synergy
Time Wipe
6% of 1604 decks
-0% synergy
Unearth
6% of 1427 decks
+3% synergy
Preordain
6% of 2138 decks
-4% synergy
Treasure Cruise
6% of 2138 decks
+1% synergy
Utility Artifacts
Swiftfoot Boots
23% of 6500 decks
-4% synergy
Rhonas's Monument
23% of 6500 decks
+22% synergy
Emerald Medallion
21% of 6500 decks
+20% synergy
Monster Manual
20% of 6500 decks
+18% synergy
Lightning Greaves
18% of 6500 decks
-7% synergy
Herald's Horn
15% of 6500 decks
+9% synergy
Fluctuator
15% of 6500 decks
+15% synergy
The Great Henge
14% of 6500 decks
+5% synergy
Urza's Incubator
10% of 6500 decks
+7% synergy
Commander's Sphere
9% of 6500 decks
-5% synergy
Thousand-Year Elixir
8% of 6500 decks
+6% synergy
Shorikai, Genesis Engine
7% of 1604 decks
+5% synergy
Lifecrafter's Bestiary
7% of 6500 decks
+3% synergy
Monument to Endurance
7% of 1334 decks
+5% synergy
Cryptcaller Chariot
7% of 356 decks
+6% synergy
Mind Stone
6% of 6500 decks
-11% synergy
Quicksilver Amulet
6% of 6500 decks
+5% synergy
Enchantments
Up the Beanstalk
27% of 5692 decks
+24% synergy
New Perspectives
26% of 2138 decks
+26% synergy
Monstrous Vortex
26% of 3564 decks
+24% synergy
Colossal Majesty
22% of 6500 decks
+19% synergy
Unnatural Growth
22% of 6500 decks
+16% synergy
Astral Drift
22% of 2544 decks
+21% synergy
Elemental Bond
19% of 6500 decks
+14% synergy
Kozilek's Unsealing
18% of 1248 decks
+17% synergy
Intruder Alarm
17% of 2138 decks
+15% synergy
Drake Haven
17% of 2138 decks
+16% synergy
Wild Growth
16% of 6500 decks
+5% synergy
Rhythm of the Wild
15% of 1661 decks
-8% synergy
Ominous Seas
15% of 2138 decks
+12% synergy
Faith of the Devoted
13% of 1427 decks
+12% synergy
Astral Slide
12% of 2544 decks
+12% synergy
Warstorm Surge
12% of 1661 decks
+7% synergy
Greater Good
12% of 6500 decks
+7% synergy
Retreat to Coralhelm
12% of 2138 decks
+10% synergy
Teferi's Ageless Insight
12% of 2138 decks
+7% synergy
Tectonic Reformation
11% of 1661 decks
+10% synergy
Mirari's Wake
10% of 2544 decks
-3% synergy
Mayael's Aria
10% of 1232 decks
+7% synergy
Virtue of Strength
9% of 5692 decks
+7% synergy
Tribute to the World Tree
9% of 6500 decks
+2% synergy
Warleader's Call
9% of 884 decks
+1% synergy
Unpredictable Cyclone
9% of 1661 decks
+9% synergy
Kenrith's Transformation
9% of 6500 decks
+3% synergy
Fires of Yavimaya
9% of 1661 decks
+5% synergy
Cast Out
9% of 2544 decks
+8% synergy
Freed from the Real
8% of 2138 decks
+6% synergy
Impact Tremors
8% of 1661 decks
-2% synergy
Brave the Sands
8% of 2544 decks
+6% synergy
Lurking Predators
8% of 6500 decks
+6% synergy
Asceticism
7% of 6500 decks
+5% synergy
Ripples of Undeath
7% of 778 decks
+2% synergy
Annie Joins Up
7% of 747 decks
-6% synergy
Reconnaissance Mission
7% of 2138 decks
+2% synergy
Goblin Bombardment
6% of 1661 decks
+0% synergy
Utopia Sprawl
6% of 6500 decks
-2% synergy
Wurmweaver Coil
6% of 6500 decks
+6% synergy
Exploration
6% of 6500 decks
-3% synergy
Crystalline Resonance
5% of 2138 decks
+5% synergy
Desert's Hold
5% of 2544 decks
+5% synergy
Overgrowth
5% of 6500 decks
+4% synergy
Zendikar Resurgent
5% of 6500 decks
+3% synergy
Insidious Roots
5% of 996 decks
-1% synergy
Guardian Project
5% of 6500 decks
-3% synergy
Animate Dead
5% of 1427 decks
-4% synergy
Planeswalkers
Kiora, Behemoth Beckoner
26% of 2138 decks
+22% synergy
Garruk, Primal Hunter
23% of 6500 decks
+21% synergy
Nissa, Who Shakes the World
5% of 6500 decks
+2% synergy
Utility Lands
Mosswort Bridge
28% of 6500 decks
+18% synergy
Barren Moor
27% of 1427 decks
+23% synergy
Desert of the Fervent
27% of 1661 decks
+25% synergy
Reliquary Tower
26% of 6500 decks
-4% synergy
Polluted Mire
23% of 1427 decks
+22% synergy
Desert of the True
22% of 2544 decks
+20% synergy
Castle Garenbrig
20% of 6500 decks
+15% synergy
Rogue's Passage
19% of 6500 decks
-1% synergy
Ramunap Ruins
19% of 1661 decks
+18% synergy
Remote Isle
17% of 2138 decks
+16% synergy
Desert of the Glorified
17% of 1427 decks
+17% synergy
Lonely Sandbar
17% of 2138 decks
+13% synergy
Desert of the Indomitable
15% of 6500 decks
+13% synergy
Tranquil Thicket
15% of 6500 decks
+11% synergy
Temple of the False God
14% of 6500 decks
+5% synergy
Drifting Meadow
14% of 2544 decks
+13% synergy
Shefet Dunes
14% of 2544 decks
+13% synergy
Secluded Steppe
13% of 2544 decks
+10% synergy
Forgotten Cave
13% of 1661 decks
+9% synergy
Smoldering Crater
13% of 1661 decks
+11% synergy
Bojuka Bog
12% of 1427 decks
-18% synergy
Nykthos, Shrine to Nyx
11% of 6500 decks
+6% synergy
Desert of the Mindful
11% of 2138 decks
+10% synergy
Scavenger Grounds
10% of 6500 decks
+7% synergy
Boseiju, Who Endures
10% of 6500 decks
-9% synergy
Slippery Karst
10% of 6500 decks
+9% synergy
Minamo, School at Water's Edge
9% of 2138 decks
+5% synergy
Yavimaya, Cradle of Growth
8% of 6500 decks
-1% synergy
Bonders' Enclave
8% of 6500 decks
+5% synergy
Hidden Cataract
8% of 1840 decks
+7% synergy
Three Tree City
8% of 3217 decks
+2% synergy
Arid Archway
8% of 4143 decks
+6% synergy
War Room
7% of 6500 decks
+1% synergy
Hashep Oasis
7% of 6500 decks
+6% synergy
Otawara, Soaring City
7% of 2138 decks
-9% synergy
Sandstorm Verge
6% of 4120 decks
+6% synergy
Oran-Rief, the Vastwood
6% of 6500 decks
+2% synergy
Geier Reach Sanitarium
6% of 6500 decks
+3% synergy
Kessig Wolf Run
6% of 1661 decks
-10% synergy
Hidden Courtyard
6% of 2229 decks
+5% synergy
Sunscorched Desert
5% of 6500 decks
+5% synergy
Desert
5% of 6500 decks
+5% synergy
Endless Sands
5% of 6500 decks
+5% synergy
Mana Artifacts
Sol Ring
68% of 6500 decks
-16% synergy
Arcane Signet
49% of 6500 decks
-24% synergy
Indatha Crystal
20% of 821 decks
+19% synergy
Zagoth Crystal
19% of 854 decks
+18% synergy
Ketria Crystal
14% of 637 decks
+14% synergy
Patriar's Seal
14% of 6500 decks
+12% synergy
Raugrin Crystal
14% of 544 decks
+12% synergy
Gruul Signet
13% of 1661 decks
+1% synergy
Savai Crystal
10% of 564 decks
+9% synergy
Golgari Signet
9% of 1427 decks
-3% synergy
Simic Signet
9% of 2138 decks
-5% synergy
Selesnya Signet
8% of 2544 decks
-0% synergy
Thought Vessel
8% of 6500 decks
-10% synergy
Caged Sun
7% of 6500 decks
+5% synergy
Moss Diamond
7% of 6500 decks
+6% synergy
Talisman of Resilience
7% of 1427 decks
-5% synergy
Boros Signet
6% of 1232 decks
-16% synergy
Throne of Eldraine
6% of 5692 decks
+5% synergy
Talisman of Unity
6% of 2544 decks
-2% synergy
Chromatic Lantern
5% of 6500 decks
-4% synergy
Talisman of Curiosity
5% of 2138 decks
-8% synergy
Patchwork Banner
5% of 3183 decks
+0% synergy
Lands
Command Tower
43% of 6500 decks
-31% synergy
Fetid Pools
41% of 854 decks
+34% synergy
Spara's Headquarters
40% of 1604 decks
+11% synergy
Irrigated Farmland
39% of 1604 decks
+31% synergy
Zagoth Triome
37% of 854 decks
+7% synergy
Indatha Triome
37% of 821 decks
+7% synergy
Prairie Stream
37% of 1604 decks
+3% synergy
Canopy Vista
35% of 2544 decks
-2% synergy
Ketria Triome
33% of 637 decks
+1% synergy
Seaside Citadel
32% of 1604 decks
+5% synergy
Canyon Slough
32% of 742 decks
+25% synergy
Jetmir's Garden
31% of 1232 decks
+0% synergy
Hallowed Fountain
31% of 1604 decks
-9% synergy
Abraded Bluffs
29% of 754 decks
+26% synergy
Scattered Groves
29% of 2544 decks
+20% synergy
Jungle Shrine
29% of 1232 decks
-4% synergy
Ziatora's Proving Ground
28% of 742 decks
-2% synergy
Temple Garden
28% of 2544 decks
-12% synergy
Raugrin Triome
28% of 544 decks
+2% synergy
Raffine's Tower
28% of 644 decks
+2% synergy
Breeding Pool
28% of 2138 decks
-13% synergy
Savai Triome
27% of 564 decks
+1% synergy
Tranquil Landscape
26% of 925 decks
+17% synergy
Xander's Lounge
25% of 574 decks
-1% synergy
Glacial Fortress
25% of 1604 decks
-3% synergy
Overgrown Tomb
24% of 1427 decks
-18% synergy
Myriad Landscape
24% of 6500 decks
+5% synergy
Hinterland Harbor
24% of 2138 decks
-5% synergy
Bristling Backwoods
24% of 1036 decks
+21% synergy
Cinder Glade
23% of 1661 decks
-16% synergy
Sheltered Thicket
22% of 1661 decks
+14% synergy
Exotic Orchard
22% of 6500 decks
-14% synergy
Watery Grave
22% of 854 decks
-19% synergy
Stomping Ground
21% of 1661 decks
-19% synergy
Meticulous Archive
20% of 1240 decks
+12% synergy
Evolving Wilds
20% of 6500 decks
-1% synergy
Sunpetal Grove
19% of 2544 decks
-5% synergy
Godless Shrine
19% of 821 decks
-21% synergy
Hedge Maze
19% of 1593 decks
+8% synergy
Blood Crypt
18% of 742 decks
-20% synergy
Steam Vents
18% of 637 decks
-21% synergy
Opulent Palace
18% of 854 decks
-9% synergy
Lush Portico
17% of 1963 decks
+8% synergy
Rejuvenating Springs
17% of 2138 decks
-12% synergy
Sacred Foundry
16% of 1232 decks
-19% synergy
Golgari Rot Farm
16% of 1427 decks
-2% synergy
Sea of Clouds
16% of 1604 decks
-10% synergy
Bountiful Promenade
15% of 2544 decks
-9% synergy
Simic Growth Chamber
15% of 2138 decks
-5% synergy
Yavimaya Coast
15% of 2138 decks
-12% synergy