Urza, Lord High Artificer + Forensic Gadgeteer + Sensei's Divining Top + Foundry Inspector
Urza, Lord High Artificer
Forensic Gadgeteer
Sensei's Divining Top
Foundry Inspector
Requires
Urza, Lord High Artificer must be on the battlefield.
Forensic Gadgeteer must be on the battlefield.
Sensei's Divining Top must be in hand.
Foundry Inspector must be on the battlefield.
Steps
- Cast Sensei's Divining Top by paying
.
- Forensic Gadgeteer triggers, creating a Clue token.
- Activate Urza's first ability by tapping the Clue, adding .
- Activate Sensei's Divining Top's second ability by tapping it, causing you to draw a card and put Sensei's Divining Top from the battlefield on top of your library.
- Activate the Clue by paying
and sacrificing it, causing you to draw Sensei's Divining Top from the top of your library.
- Repeat.
Results
Infinite card draw. Infinite draw triggers. Near-infinite storm count.
Urza, Lord High Artificer
5.13% of 11942 decks
613 decks
Leonardo da Vinci
3.06% of 1535 decks
47 decks
The Reality Chip
2.95% of 1354 decks
40 decks
Memnarch
2.82% of 1418 decks
40 decks
Sai, Master Thopterist
2.64% of 1742 decks
46 decks
Urza, Lord Protector
2.48% of 4921 decks
122 decks
Jhoira, Weatherlight Captain
1.88% of 6172 decks
116 decks
Emry, Lurker of the Loch
1.55% of 4002 decks
62 decks
Breya, Etherium Shaper
0.87% of 13395 decks
116 decks
Urza, Chief Artificer
0.72% of 13313 decks
96 decks
New Cards
Pollywog Prodigy
70% of 40 decks
+58% synergy
Dawn's Truce
46% of 24 decks
+36% synergy
Caretaker's Talent
25% of 12 decks
+15% synergy
Into the Flood Maw
24% of 85 decks
+20% synergy
Fortune Teller's Talent
22% of 40 decks
+20% synergy
High Synergy Cards
Etherium Sculptor
93% of 1647 decks
+90% synergy
Enthusiastic Mechanaut
82% of 359 decks
+81% synergy
Vault of Whispers
79% of 301 decks
+76% synergy
Ancient Den
77% of 475 decks
+74% synergy
Mystic Forge
75% of 1647 decks
+72% synergy
Great Furnace
73% of 359 decks
+70% synergy
Seat of the Synod
73% of 1647 decks
+70% synergy
Fabricate
73% of 1647 decks
+70% synergy
Sai, Master Thopterist
70% of 1647 decks
+68% synergy
Crystal Skull, Isu Spyglass
70% of 361 decks
+67% synergy
Top Cards
Swords to Plowshares
75% of 475 decks
+46% synergy
Esper Sentinel
71% of 475 decks
+61% synergy
Counterspell
67% of 1647 decks
+46% synergy
Unwinding Clock
67% of 1647 decks
+64% synergy
Emry, Lurker of the Loch
66% of 1647 decks
+64% synergy
Cyclonic Rift
65% of 1647 decks
+51% synergy
The Reality Chip
64% of 1647 decks
+61% synergy
Desynchronization
62% of 269 decks
+59% synergy
Rhystic Study
61% of 1647 decks
+47% synergy
Smothering Tithe
60% of 475 decks
+49% synergy
Creatures
Phyrexian Metamorph
58% of 1647 decks
+55% synergy
Baleful Strix
57% of 301 decks
+54% synergy
Loyal Inventor
56% of 177 decks
+54% synergy
Jhoira, Weatherlight Captain
55% of 359 decks
+54% synergy
Padeem, Consul of Innovation
50% of 1647 decks
+48% synergy
Thought Monitor
45% of 1647 decks
+43% synergy
Marionette Apprentice
41% of 125 decks
+36% synergy
Spellskite
40% of 1647 decks
+39% synergy
Illustrious Wanderglyph
40% of 475 decks
+38% synergy
Vedalken Archmage
39% of 1647 decks
+39% synergy
Liberator, Urza's Battlethopter
38% of 1647 decks
+36% synergy
Reckless Fireweaver
37% of 359 decks
+35% synergy
Dockside Extortionist
37% of 359 decks
+29% synergy
Tireless Provisioner
35% of 17 decks
+30% synergy
Jan Jansen, Chaos Crafter
34% of 128 decks
+33% synergy
Urza, Prince of Kroog
33% of 475 decks
+33% synergy
Hullbreaker Horror
33% of 1647 decks
+29% synergy
Goblin Welder
33% of 359 decks
+31% synergy
Jhoira's Familiar
32% of 1647 decks
+30% synergy
Bronze Guardian
31% of 475 decks
+30% synergy
Ornithopter
31% of 1647 decks
+29% synergy
Trinket Mage
31% of 1647 decks
+29% synergy
Tireless Tracker
29% of 17 decks
+27% synergy
Jaheira, Friend of the Forest
29% of 17 decks
+27% synergy
Solemn Simulacrum
29% of 1647 decks
+15% synergy
Shimmer Myr
28% of 1647 decks
+26% synergy
Marionette Master
28% of 301 decks
+26% synergy
Oswald Fiddlebender
26% of 475 decks
+25% synergy
Tribute Mage
26% of 1647 decks
+24% synergy
Myr Retriever
25% of 1647 decks
+23% synergy
Karn, Legacy Reforged
25% of 1647 decks
+24% synergy
Displacer Kitten
25% of 1647 decks
+22% synergy
Scrap Trawler
25% of 1647 decks
+23% synergy
Birgi, God of Storytelling
24% of 359 decks
+21% synergy
Copper Myr
24% of 17 decks
+23% synergy
Eternal Witness
24% of 17 decks
+13% synergy
Master Transmuter
23% of 1647 decks
+23% synergy
Hydroelectric Specimen
23% of 442 decks
+19% synergy
Oltec Matterweaver
23% of 297 decks
+22% synergy
Urza, Lord Protector
23% of 475 decks
+22% synergy
Goblin Engineer
22% of 359 decks
+20% synergy
Walking Ballista
21% of 1647 decks
+19% synergy
Ethersworn Canonist
20% of 475 decks
+19% synergy
Urza, Chief Artificer
20% of 256 decks
+20% synergy
Ornithopter of Paradise
19% of 1647 decks
+15% synergy
Losheel, Clockwork Scholar
19% of 475 decks
+18% synergy
Kappa Cannoneer
19% of 1647 decks
+18% synergy
Displaced Dinosaurs
18% of 17 decks
+17% synergy
Kinnan, Bonder Prodigy
18% of 17 decks
+17% synergy
Peregrin Took
18% of 17 decks
+15% synergy
Instants
Dispatch
58% of 475 decks
+56% synergy
Whir of Invention
57% of 1647 decks
+56% synergy
Dramatic Reversal
54% of 1647 decks
+51% synergy
Enlightened Tutor
53% of 475 decks
+45% synergy
Fierce Guardianship
46% of 1647 decks
+38% synergy
Mana Drain
46% of 1647 decks
+38% synergy
Path to Exile
45% of 475 decks
+24% synergy
An Offer You Can't Refuse
44% of 1647 decks
+34% synergy
Swan Song
39% of 1647 decks
+31% synergy
Teferi's Protection
38% of 475 decks
+29% synergy
Mystical Tutor
38% of 1647 decks
+30% synergy
Vampiric Tutor
36% of 301 decks
+27% synergy
Dovin's Veto
36% of 475 decks
+31% synergy
Force of Will
32% of 1647 decks
+27% synergy
Sink into Stupor
31% of 672 decks
+24% synergy
Brainstorm
30% of 1647 decks
+19% synergy
Force of Negation
27% of 1647 decks
+22% synergy
Pongify
26% of 1647 decks
+20% synergy
Deflecting Swat
26% of 359 decks
+18% synergy
Muddle the Mixture
25% of 1647 decks
+22% synergy
Negate
24% of 1647 decks
+13% synergy
Generous Gift
24% of 475 decks
+12% synergy
Strix Serenade
22% of 672 decks
+18% synergy
Arcane Denial
22% of 1647 decks
+12% synergy
Anguished Unmaking
21% of 256 decks
+15% synergy
Void Rend
20% of 256 decks
+18% synergy
Pact of Negation
19% of 1647 decks
+15% synergy
Rapid Hybridization
18% of 1647 decks
+13% synergy
Heroic Intervention
18% of 17 decks
+4% synergy
Chaos Warp
16% of 359 decks
+0% synergy
Flusterstorm
15% of 1647 decks
+11% synergy
Reality Shift
13% of 1647 decks
+9% synergy
Resculpt
13% of 1647 decks
+10% synergy
Stroke of Midnight
12% of 475 decks
+6% synergy
Paradoxical Outcome
11% of 1647 decks
+10% synergy
Fell the Profane
10% of 125 decks
+3% synergy
Mental Misstep
9% of 1647 decks
+7% synergy
Narset's Reversal
9% of 1647 decks
+7% synergy
Deadly Rollick
8% of 301 decks
+3% synergy
Flare of Denial
8% of 728 decks
+5% synergy
High Tide
7% of 1647 decks
+6% synergy
Thirst for Knowledge
7% of 1647 decks
+7% synergy
Officious Interrogation
7% of 347 decks
+7% synergy
Chain of Vapor
7% of 1647 decks
+5% synergy
Silence
7% of 475 decks
+4% synergy
Waterlogged Teachings
6% of 125 decks
+5% synergy
Three Steps Ahead
6% of 992 decks
+4% synergy
Flawless Maneuver
6% of 475 decks
+2% synergy
Mindbreak Trap
6% of 1647 decks
+4% synergy
Brain Freeze
6% of 1647 decks
+4% synergy
Sorceries
Organic Extinction
43% of 475 decks
+41% synergy
Demonic Tutor
42% of 301 decks
+30% synergy
Reshape
38% of 1647 decks
+37% synergy
Thoughtcast
36% of 1647 decks
+35% synergy
Jeska's Will
28% of 359 decks
+19% synergy
Windfall
24% of 1647 decks
+18% synergy
Ponder
23% of 1647 decks
+17% synergy
Blasphemous Act
22% of 359 decks
+6% synergy
Supreme Verdict
22% of 475 decks
+19% synergy
Season of Weaving
20% of 108 decks
+17% synergy
Wake the Past
18% of 162 decks
+17% synergy
Gamble
18% of 359 decks
+13% synergy
Their Name Is Death
17% of 301 decks
+16% synergy
Toxic Deluge
16% of 301 decks
+8% synergy
Farewell
16% of 475 decks
+10% synergy
Dance of the Manse
16% of 475 decks
+15% synergy
Vandalblast
13% of 359 decks
+5% synergy
Grapeshot
12% of 359 decks
+10% synergy
Preordain
12% of 1647 decks
+6% synergy
Sevinne's Reclamation
11% of 475 decks
+8% synergy
Solve the Equation
11% of 1647 decks
+8% synergy
Merchant Scroll
10% of 1647 decks
+9% synergy
Gitaxian Probe
10% of 1647 decks
+7% synergy
Transmute Artifact
9% of 1647 decks
+9% synergy
Sea Gate Restoration
9% of 1647 decks
+6% synergy
Diabolic Intent
8% of 301 decks
+3% synergy
March of Progress
7% of 1647 decks
+7% synergy
One with the Machine
7% of 1647 decks
+7% synergy
Damn
7% of 256 decks
+3% synergy
Brilliant Restoration
6% of 475 decks
+5% synergy
Trash for Treasure
6% of 359 decks
+6% synergy
Feed the Swarm
6% of 301 decks
-4% synergy
Vindicate
5% of 256 decks
+4% synergy
Imperial Seal
5% of 301 decks
+2% synergy
Wheel of Fortune
5% of 359 decks
+3% synergy
Utility Artifacts
Simulacrum Synthesizer
49% of 982 decks
+48% synergy
Isochron Scepter
48% of 1647 decks
+46% synergy
Thousand Moons Smithy
47% of 475 decks
+45% synergy
Thopter Foundry
46% of 256 decks
+46% synergy
Time Sieve
46% of 301 decks
+45% synergy
The One Ring
43% of 1647 decks
+34% synergy
Lightning Greaves
42% of 1647 decks
+17% synergy
Cloud Key
39% of 1647 decks
+37% synergy
Aetherflux Reservoir
38% of 1647 decks
+34% synergy
Bolas's Citadel
37% of 301 decks
+32% synergy
Mishra's Bauble
36% of 1647 decks
+35% synergy
Sapphire Medallion
32% of 1647 decks
+30% synergy
Tormod's Crypt
31% of 1647 decks
+30% synergy
Rings of Brighthearth
31% of 1647 decks
+29% synergy
Aether Spellbomb
28% of 1647 decks
+28% synergy
Sculpting Steel
28% of 1647 decks
+25% synergy
Worldwalker Helm
26% of 925 decks
+25% synergy
Darksteel Forge
26% of 1647 decks
+24% synergy
Cranial Plating
24% of 301 decks
+23% synergy
Swiftfoot Boots
24% of 1647 decks
-4% synergy
Howling Mine
23% of 1647 decks
+21% synergy
Winter Orb
22% of 1647 decks
+21% synergy
Krark-Clan Ironworks
21% of 1647 decks
+20% synergy
Welding Jar
20% of 1647 decks
+20% synergy
Vexing Bauble
20% of 482 decks
+18% synergy
Manifold Key
20% of 1647 decks
+18% synergy
Skullclamp
19% of 1647 decks
+7% synergy
Shorikai, Genesis Engine
19% of 475 decks
+18% synergy
Pyrite Spellbomb
18% of 359 decks
+18% synergy
Bootleggers' Stash
18% of 17 decks
+16% synergy
Mycosynth Lattice
17% of 1647 decks
+16% synergy
Spellbook
17% of 1647 decks
+16% synergy
Encroaching Mycosynth
16% of 1647 decks
+15% synergy
Winter Moon
16% of 728 decks
+14% synergy
Voltaic Key
15% of 1647 decks
+14% synergy
Urza's Bauble
14% of 1647 decks
+13% synergy
Static Orb
13% of 1647 decks
+13% synergy
Moonsilver Key
13% of 1647 decks
+12% synergy
Ichor Wellspring
13% of 1647 decks
+11% synergy
Ashnod's Altar
13% of 1647 decks
+5% synergy
Codex Shredder
13% of 1647 decks
+12% synergy
Forsaken Monument
13% of 1647 decks
+11% synergy
Semblance Anvil
12% of 1647 decks
+11% synergy
Portal to Phyrexia
12% of 1647 decks
+10% synergy
Wishclaw Talisman
12% of 301 decks
+9% synergy
Helm of Awakening
11% of 1647 decks
+11% synergy
Cranial Ram
10% of 58 decks
+10% synergy
Chimil, the Inner Sun
10% of 1647 decks
+7% synergy
The Millennium Calendar
10% of 1647 decks
+9% synergy
Grafdigger's Cage
9% of 1647 decks
+7% synergy
Enchantments
Mystic Remora
42% of 1647 decks
+33% synergy
Mirrodin Besieged
34% of 1647 decks
+33% synergy
Storm the Vault
33% of 359 decks
+32% synergy
Thopter Spy Network
30% of 1647 decks
+29% synergy
Efficient Construction
26% of 1647 decks
+26% synergy
Artist's Talent
21% of 19 decks
+19% synergy
Biotransference
21% of 301 decks
+20% synergy
Parallel Lives
18% of 17 decks
+14% synergy
Mechanized Production
16% of 1647 decks
+15% synergy
Training Grounds
15% of 1647 decks
+13% synergy
Anointed Procession
13% of 475 decks
+9% synergy
Artificer Class
13% of 1647 decks
+12% synergy
Back to Basics
12% of 1647 decks
+11% synergy
Underworld Breach
9% of 359 decks
+6% synergy
Propaganda
8% of 1647 decks
+3% synergy
Copy Artifact
7% of 1647 decks
+7% synergy
Power Artifact
7% of 1647 decks
+7% synergy
Whirlwind of Thought
7% of 162 decks
+6% synergy
Trouble in Pairs
6% of 347 decks
+2% synergy
Tempered Steel
6% of 475 decks
+5% synergy
Amphibian Downpour
5% of 482 decks
+3% synergy
Planeswalkers
Tezzeret, Master of the Bridge
57% of 301 decks
+56% synergy
Tezzeret the Seeker
43% of 1647 decks
+42% synergy
Saheeli, Sublime Artificer
34% of 359 decks
+33% synergy
Daretti, Scrap Savant
23% of 359 decks
+22% synergy
Karn, the Great Creator
18% of 1647 decks
+16% synergy
Narset, Parter of Veils
17% of 1647 decks
+14% synergy
Tezzeret, Artifice Master
8% of 1647 decks
+7% synergy
Teferi, Time Raveler
8% of 475 decks
+6% synergy
Ugin, the Ineffable
7% of 1647 decks
+5% synergy
Tezzeret, Betrayer of Flesh
7% of 1647 decks
+6% synergy
Karn, Scion of Urza
7% of 1647 decks
+6% synergy
Jace, Wielder of Mysteries
7% of 1647 decks
+5% synergy
Saheeli, Filigree Master
6% of 359 decks
+6% synergy
Utility Lands
Urza's Saga
65% of 1647 decks
+58% synergy
Tree of Tales
65% of 17 decks
+64% synergy
Inventors' Fair
62% of 1647 decks
+58% synergy
Academy Ruins
61% of 1647 decks
+58% synergy
Archway of Innovation
58% of 590 decks
+56% synergy
Darksteel Citadel
55% of 1647 decks
+51% synergy
Reliquary Tower
49% of 1647 decks
+20% synergy
Buried Ruin
43% of 1647 decks
+37% synergy
Fomori Vault
39% of 925 decks
+37% synergy
Otawara, Soaring City
38% of 1647 decks
+30% synergy
Boseiju, Who Endures
35% of 17 decks
+26% synergy
Ancient Tomb
30% of 1647 decks
+20% synergy
Mystic Sanctuary
24% of 1647 decks
+18% synergy
Alchemist's Refuge
24% of 17 decks
+22% synergy
The Shire
24% of 17 decks
+21% synergy
Monumental Henge
21% of 145 decks
+19% synergy
Urza's Power Plant
20% of 1647 decks
+18% synergy
Urza's Mine
20% of 1647 decks
+18% synergy
Urza's Tower
19% of 1647 decks
+17% synergy
Bojuka Bog
19% of 301 decks
+3% synergy
Treasure Vault
15% of 1647 decks
+12% synergy
Minamo, School at Water's Edge
13% of 1647 decks
+11% synergy
Fountainport
12% of 50 decks
+5% synergy
War Room
10% of 1647 decks
+4% synergy
Urza's Workshop
10% of 1647 decks
+9% synergy
Eiganjo, Seat of the Empire
8% of 475 decks
+3% synergy
Tolaria West
7% of 1647 decks
+6% synergy
Rivendell
7% of 1647 decks
+4% synergy
Cephalid Coliseum
6% of 1647 decks
+5% synergy
Castle Vantress
6% of 1647 decks
+4% synergy
Mishra's Workshop
6% of 1647 decks
+6% synergy
Emergence Zone
6% of 1647 decks
+3% synergy
Mana Artifacts
Sol Ring
97% of 1647 decks
+13% synergy
Arcane Signet
80% of 1647 decks
+8% synergy
Talisman of Creativity
63% of 359 decks
+57% synergy
Talisman of Progress
57% of 475 decks
+52% synergy
Basalt Monolith
51% of 1647 decks
+49% synergy
Talisman of Dominance
50% of 301 decks
+42% synergy
Izzet Signet
46% of 359 decks
+39% synergy
Azorius Signet
45% of 475 decks
+40% synergy
Mox Opal
44% of 1647 decks
+40% synergy
Thought Vessel
44% of 1647 decks
+28% synergy
Talisman of Curiosity
41% of 17 decks
+39% synergy
Simic Signet
41% of 17 decks
+38% synergy
Lotus Petal
41% of 1647 decks
+34% synergy
Everflowing Chalice
39% of 1647 decks
+34% synergy
Mana Crypt
38% of 1647 decks
+27% synergy
Mind Stone
38% of 1647 decks
+20% synergy
Mana Vault
37% of 1647 decks
+30% synergy
Talisman of Unity
33% of 9 decks
+32% synergy
Fellwar Stone
31% of 1647 decks
+10% synergy
Dimir Signet
31% of 301 decks
+23% synergy
Jeweled Lotus
30% of 1647 decks
+22% synergy
Talisman of Hierarchy
29% of 256 decks
+23% synergy
Chrome Mox
23% of 1647 decks
+16% synergy
Talisman of Conviction
23% of 162 decks
+18% synergy
Mox Amber
23% of 1647 decks
+19% synergy
Talisman of Indulgence
20% of 152 decks
+14% synergy
Thran Dynamo
19% of 1647 decks
+14% synergy
Orzhov Signet
18% of 256 decks
+12% synergy
Liquimetal Torque
17% of 1647 decks
+13% synergy
Rakdos Signet
14% of 152 decks
+8% synergy
The Mightstone and Weakstone
14% of 1647 decks
+13% synergy
Grim Monolith
13% of 1647 decks
+11% synergy
Boros Signet
12% of 162 decks
+7% synergy
Mox Diamond
11% of 1647 decks
+6% synergy
Gilded Lotus
9% of 1647 decks
+6% synergy
Patchwork Banner
9% of 58 decks
-7% synergy
Chromatic Star
7% of 1647 decks
+7% synergy
Commander's Sphere
7% of 1647 decks
-9% synergy
Midnight Clock
7% of 1647 decks
+4% synergy
Chromatic Lantern
7% of 1647 decks
-3% synergy
Springleaf Drum
5% of 1647 decks
+4% synergy
Cursed Mirror
5% of 359 decks
+3% synergy
Jeweled Amulet
5% of 1647 decks
+5% synergy
Chromatic Orrery
5% of 1647 decks
+3% synergy
Lands
Hallowed Fountain
77% of 475 decks
+68% synergy
Watery Grave
75% of 301 decks
+65% synergy
Steam Vents
75% of 359 decks
+66% synergy
Godless Shrine
70% of 256 decks
+61% synergy
Blood Crypt
62% of 152 decks
+54% synergy
Breeding Pool
59% of 17 decks
+50% synergy
Ketria Triome
57% of 7 decks
+54% synergy
Spire Garden
57% of 7 decks
+52% synergy
Stomping Ground
57% of 7 decks
+48% synergy
Sacred Foundry
57% of 162 decks
+49% synergy
Raffine's Tower
57% of 256 decks
+53% synergy
Razortide Bridge
56% of 475 decks
+54% synergy
Sea of Clouds
53% of 475 decks
+47% synergy
Training Center
52% of 359 decks
+45% synergy
Shivan Reef
48% of 359 decks
+42% synergy
Mistvault Bridge
48% of 301 decks
+46% synergy
Silverbluff Bridge
45% of 359 decks
+44% synergy
Thornglint Bridge
44% of 9 decks
+44% synergy
Seaside Citadel
44% of 9 decks
+41% synergy
Spara's Headquarters
44% of 9 decks
+41% synergy
Goldmire Bridge
44% of 256 decks
+43% synergy
Xander's Lounge
43% of 152 decks
+40% synergy
Morphic Pool
43% of 301 decks
+36% synergy
Dreamroot Cascade
41% of 17 decks
+37% synergy
Rejuvenating Springs
41% of 17 decks
+35% synergy
Command Tower
41% of 1647 decks
-33% synergy
Drossforge Bridge
41% of 152 decks
+40% synergy
Rustvale Bridge
39% of 162 decks
+38% synergy
Adarkar Wastes
39% of 475 decks
+35% synergy
Glacial Fortress
39% of 475 decks
+33% synergy
Raugrin Triome
38% of 162 decks
+35% synergy
Sulfur Falls
36% of 359 decks
+30% synergy
Tanglepool Bridge
35% of 17 decks
+35% synergy
Waterlogged Grove
35% of 17 decks
+34% synergy
Yavimaya Coast
35% of 17 decks
+29% synergy
Vault of Champions
35% of 256 decks
+29% synergy
Prairie Stream
34% of 475 decks
+27% synergy
Canopy Vista
33% of 9 decks
+26% synergy
Temple Garden
33% of 9 decks
+24% synergy
The Mycosynth Gardens
31% of 1647 decks
+28% synergy
Hinterland Harbor
29% of 17 decks
+24% synergy
Deserted Beach
29% of 475 decks
+25% synergy
Flooded Strand
28% of 1647 decks
+17% synergy
Underground River
28% of 301 decks
+23% synergy
Scalding Tarn
26% of 1647 decks
+14% synergy
Spectator Seating
25% of 162 decks
+19% synergy
Polluted Delta
24% of 1647 decks
+13% synergy
Volcanic Island
24% of 359 decks
+21% synergy
Stormcarved Coast
23% of 359 decks
+19% synergy
Underground Sea
23% of 301 decks
+19% synergy