Urza, Lord High Artificer + Deadeye Navigator + Virtue of Knowledge

Urza, Lord High Artificer
Deadeye Navigator
Virtue of Knowledge

Requires
Urza, Lord High Artificer must be on the battlefield. Deadeye Navigator must be on the battlefield (is paired with Urza). Virtue of Knowledge // Vantress Visions must be on the battlefield. Mana needed: 1
Steps
  1. Activate Urza by paying 1, blinking it.
  2. When Urza enters the battlefield, it and Deadeye Navigator's soulbond ability trigger twice.
  3. Resolve both Deadeye Navigator triggers, repairing it and Urza.
  4. Resolve both Urza triggers, creating two 0/0 Construct artifact creature tokens.
  5. Activate Urza's first ability twice by tapping the Constructs, adding .
  6. Repeat.
Results
Infinite LTB. Infinite ETB. Infinite tapped creature tokens.

Niko, Light of Hope
0.08% of 2514 decks 2 decks
Top Commanders
Lonis, Cryptozoologist
2.54% of 4604 decks 117 decks
Tivit, Seller of Secrets
0.52% of 11500 decks 60 decks
Urza, Lord High Artificer
0.26% of 12657 decks 33 decks
Brago, King Eternal
0.21% of 7946 decks 17 decks
Hargilde, Kindly Runechanter // Wernog, Rider's Chaplain
1.76% of 739 decks 13 decks
Breya, Etherium Shaper
0.09% of 13853 decks 12 decks
Thassa, Deep-Dwelling
0.88% of 1254 decks 11 decks
Bjorna, Nightfall Alchemist // Wernog, Rider's Chaplain
0.34% of 2984 decks 10 decks
Dee Kay, Finder of the Lost
1.03% of 582 decks 6 decks
Abuelo, Ancestral Echo
0.82% of 734 decks 6 decks
Yorion, Sky Nomad
0.30% of 2003 decks 6 decks
Gyruda, Doom of Depths
0.27% of 1847 decks 5 decks
Yarok, the Desecrated
0.05% of 10412 decks 5 decks
Aminatou, the Fateshifter
0.08% of 6300 decks 5 decks
Sally Sparrow
2.52% of 119 decks 3 decks
Satoru, the Infiltrator
0.16% of 1256 decks 2 decks
The Cyber-Controller
0.22% of 914 decks 2 decks
New Cards
Enduring Vitality
100% of 3 decks +75% synergy
Floodfarm Verge
64% of 11 decks +43% synergy
Gloomlake Verge
62% of 8 decks +43% synergy
Mirror Room // Fractured Realm
23% of 30 decks +17% synergy
Fear of Impostors
15% of 26 decks +13% synergy
High Synergy Cards
Panharmonicon
86% of 354 decks +81% synergy
Jaheira, Friend of the Forest
85% of 134 decks +80% synergy
Emiel the Blessed
78% of 9 decks +74% synergy
Ephemerate
78% of 155 decks +72% synergy
Adrix and Nev, Twincasters
76% of 134 decks +71% synergy
Tireless Tracker
75% of 134 decks +70% synergy
Soulherder
75% of 155 decks +70% synergy
Teleportation Circle
71% of 155 decks +67% synergy
Wavesifter
67% of 134 decks +66% synergy
Coiling Oracle
67% of 134 decks +59% synergy
Top Cards
Eternal Witness
75% of 134 decks +54% synergy
Swords to Plowshares
63% of 155 decks +0% synergy
Elesh Norn, Mother of Machines
62% of 155 decks +57% synergy
Beast Within
61% of 134 decks +22% synergy
Reclamation Sage
59% of 134 decks +48% synergy
Thassa, Deep-Dwelling
59% of 354 decks +56% synergy
Academy Manufactor
58% of 354 decks +54% synergy
Ghostly Flicker
56% of 354 decks +51% synergy
Mirkwood Bats
56% of 130 decks +44% synergy
Llanowar Elves
56% of 134 decks +35% synergy
Creatures
Birds of Paradise
54% of 134 decks +28% synergy
Sarinth Steelseeker
52% of 134 decks +51% synergy
Brago, King Eternal
51% of 155 decks +47% synergy
Displacer Kitten
50% of 354 decks +44% synergy
Reckless Fireweaver
49% of 35 decks +44% synergy
Peregrin Took
48% of 134 decks +42% synergy
Kellan, Inquisitive Prodigy
47% of 77 decks +44% synergy
Elvish Mystic
46% of 134 decks +28% synergy
Baleful Strix
46% of 130 decks +33% synergy
Fyndhorn Elves
46% of 134 decks +32% synergy
Thought Monitor
45% of 354 decks +42% synergy
Wood Elves
44% of 134 decks +37% synergy
Tireless Provisioner
44% of 134 decks +33% synergy
Dour Port-Mage
43% of 46 decks +38% synergy
Briarbridge Patrol
43% of 134 decks +43% synergy
Marionette Master
43% of 130 decks +39% synergy
Kambal, Profiteering Mayor
42% of 33 decks +33% synergy
Cyberdrive Awakener
42% of 354 decks +40% synergy
Peregrine Drake
42% of 354 decks +39% synergy
Displaced Dinosaurs
41% of 107 decks +40% synergy
Shimmer Dragon
41% of 354 decks +39% synergy
Solemn Simulacrum
40% of 354 decks +26% synergy
Tangletrove Kelp
39% of 170 decks +38% synergy
Beast Whisperer
37% of 134 decks +25% synergy
Esper Sentinel
35% of 155 decks +15% synergy
Nadier's Nightblade
35% of 130 decks +32% synergy
Mulldrifter
35% of 354 decks +29% synergy
Marionette Apprentice
35% of 34 decks +28% synergy
Graf Mole
35% of 134 decks +35% synergy
Loran of the Third Path
35% of 155 decks +28% synergy
Sakura-Tribe Elder
34% of 134 decks +16% synergy
Forensic Gadgeteer
34% of 176 decks +30% synergy
Mondrak, Glory Dominus
33% of 155 decks +24% synergy
Farhaven Elf
33% of 134 decks +29% synergy
Tamiyo, Inquisitive Student
32% of 31 decks +31% synergy
Temur Sabertooth
32% of 134 decks +28% synergy
Erdwal Illuminator
32% of 354 decks +31% synergy
Yorion, Sky Nomad
31% of 155 decks +29% synergy
Molten Gatekeeper
31% of 13 decks +26% synergy
Junk Winder
31% of 354 decks +28% synergy
Lonis, Genetics Expert
30% of 74 decks +29% synergy
Ingenious Artillerist
29% of 35 decks +26% synergy
Dockside Extortionist
29% of 35 decks +16% synergy
Kappa Cannoneer
29% of 354 decks +26% synergy
Shrieking Drake
28% of 354 decks +28% synergy
Restoration Angel
28% of 155 decks +25% synergy
Preston, the Vanisher
27% of 155 decks +26% synergy
Felidar Guardian
27% of 155 decks +25% synergy
Abuelo, Ancestral Echo
27% of 104 decks +25% synergy
Archaeomancer
27% of 354 decks +23% synergy
Instants
Counterspell
52% of 354 decks +9% synergy
Eerie Interlude
51% of 155 decks +47% synergy
Path to Exile
43% of 155 decks -3% synergy
Cyclonic Rift
42% of 354 decks +14% synergy
Heroic Intervention
39% of 134 decks +9% synergy
Assassin's Trophy
38% of 8 decks +7% synergy
Eladamri's Call
33% of 9 decks +22% synergy
Cloudshift
33% of 155 decks +30% synergy
Dovin's Veto
33% of 155 decks +14% synergy
Void Rend
32% of 106 decks +17% synergy
Essence Flux
31% of 354 decks +28% synergy
Confront the Unknown
30% of 134 decks +30% synergy
Second Harvest
30% of 134 decks +25% synergy
Worldly Tutor
27% of 134 decks +13% synergy
An Offer You Can't Refuse
27% of 354 decks +6% synergy
Anguished Unmaking
26% of 106 decks +2% synergy
Mana Drain
25% of 354 decks +10% synergy
Fierce Guardianship
25% of 354 decks +7% synergy
Displace
24% of 354 decks +22% synergy
Momentary Blink
24% of 155 decks +21% synergy
Arcane Denial
24% of 354 decks +4% synergy
Enlightened Tutor
23% of 155 decks +5% synergy
Teferi's Protection
23% of 155 decks +3% synergy
Vampiric Tutor
23% of 130 decks +5% synergy
Lae'zel's Acrobatics
21% of 155 decks +19% synergy
Disorder in the Court
20% of 155 decks +18% synergy
Dawn's Truce
20% of 25 decks +3% synergy
Generous Gift
19% of 155 decks -6% synergy
Swan Song
19% of 354 decks +2% synergy
Pongify
18% of 354 decks +7% synergy
Rampage of the Clans
18% of 134 decks +17% synergy
Chaos Warp
17% of 35 decks -15% synergy
Sink into Stupor
17% of 88 decks +4% synergy
Whir of Invention
17% of 354 decks +13% synergy
Negate
16% of 354 decks -7% synergy
Rapid Hybridization
14% of 354 decks +5% synergy
Mystical Tutor
14% of 354 decks -1% synergy
Growth Spiral
13% of 134 decks -8% synergy
Ghostway
13% of 155 decks +12% synergy
Nature's Claim
13% of 134 decks +3% synergy
Deadly Rollick
12% of 130 decks +2% synergy
Dispatch
12% of 155 decks +7% synergy
Deadly Dispute
12% of 130 decks +0% synergy
Dark Ritual
12% of 130 decks -11% synergy
Big Score
11% of 35 decks +2% synergy
Deflecting Swat
11% of 35 decks -5% synergy
Teferi's Time Twist
11% of 354 decks +10% synergy
Double Major
11% of 134 decks +7% synergy
Planar Incision
11% of 354 decks +10% synergy
Semester's End
11% of 155 decks +9% synergy
Sorceries
Cultivate
43% of 134 decks -4% synergy
Rise and Shine
34% of 354 decks +33% synergy
Demonic Tutor
33% of 130 decks +11% synergy
Damn
28% of 106 decks +12% synergy
Another Round
28% of 54 decks +26% synergy
Farewell
26% of 155 decks +12% synergy
Nature's Lore
25% of 134 decks -7% synergy
Kodama's Reach
25% of 134 decks -7% synergy
Three Visits
23% of 134 decks -2% synergy
Toxic Deluge
23% of 130 decks +6% synergy
Supreme Verdict
21% of 155 decks +7% synergy
Blasphemous Act
20% of 35 decks -14% synergy
Thoughtcast
19% of 354 decks +16% synergy
Rampant Growth
19% of 134 decks -15% synergy
Bala Ged Recovery
19% of 134 decks +10% synergy
Root Out
16% of 134 decks +16% synergy
Farseek
16% of 134 decks -18% synergy
Universal Surveillance
16% of 354 decks +16% synergy
Fabricate
15% of 354 decks +9% synergy
Finale of Devastation
15% of 134 decks +7% synergy
Follow the Bodies
15% of 170 decks +14% synergy
Jeska's Will
14% of 35 decks -3% synergy
Council's Judgment
13% of 155 decks +12% synergy
Neoform
12% of 134 decks +7% synergy
Vandalblast
11% of 35 decks -5% synergy
Green Sun's Zenith
11% of 134 decks +5% synergy
Sea Gate Restoration
10% of 354 decks +5% synergy
Eldritch Evolution
10% of 134 decks +5% synergy
Capital Punishment
9% of 130 decks +9% synergy
Monumental Corruption
9% of 130 decks +9% synergy
Beseech the Mirror
9% of 130 decks +5% synergy
Time Wipe
9% of 155 decks +2% synergy
Rite of Oblivion
8% of 106 decks +6% synergy
Ponder
8% of 354 decks -5% synergy
Doppelgang
8% of 76 decks +4% synergy
Grim Tutor
8% of 130 decks +3% synergy
Windfall
8% of 354 decks -5% synergy
Temporal Spring
7% of 134 decks +7% synergy
Lich-Knights' Conquest
7% of 130 decks +4% synergy
Imperial Seal
7% of 130 decks +1% synergy
They Went This Way
7% of 75 decks +6% synergy
Expropriate
6% of 354 decks +5% synergy
Tyrant's Choice
6% of 130 decks +6% synergy
Reverse Engineer
6% of 354 decks +5% synergy
Preordain
6% of 354 decks -5% synergy
Step Right Up
5% of 130 decks +5% synergy
Torment of Hailfire
5% of 130 decks +0% synergy
Damnation
5% of 130 decks -3% synergy
Reanimate
5% of 130 decks -10% synergy
Feed the Swarm
5% of 130 decks -13% synergy
Utility Artifacts
Conjurer's Closet
52% of 354 decks +50% synergy
Time Sieve
48% of 130 decks +46% synergy
Inspiring Statuary
45% of 354 decks +43% synergy
Tamiyo's Journal
40% of 354 decks +40% synergy
Lightning Greaves
25% of 354 decks -0% synergy
Thousand Moons Smithy
23% of 91 decks +20% synergy
Swiftfoot Boots
17% of 354 decks -11% synergy
Sword of Hearth and Home
16% of 354 decks +14% synergy
Worldwalker Helm
16% of 115 decks +14% synergy
Idol of Oblivion
15% of 354 decks +11% synergy
Krark-Clan Ironworks
13% of 354 decks +12% synergy
Strionic Resonator
13% of 354 decks +10% synergy
Simulacrum Synthesizer
12% of 115 decks +10% synergy
The Great Henge
12% of 134 decks +2% synergy
The One Ring
12% of 354 decks +3% synergy
Bolas's Citadel
11% of 130 decks +1% synergy
Cranial Plating
10% of 130 decks +8% synergy
Sapphire Medallion
10% of 354 decks +7% synergy
Unwinding Clock
9% of 354 decks +6% synergy
Wayfarer's Bauble
9% of 354 decks -1% synergy
Archaeomancer's Map
8% of 155 decks +4% synergy
Nettlecyst
7% of 354 decks +5% synergy
Isochron Scepter
7% of 354 decks +4% synergy
Birthing Pod
7% of 134 decks +4% synergy
Altar of the Brood
6% of 354 decks +5% synergy
Rings of Brighthearth
6% of 354 decks +4% synergy
Esoteric Duplicator
6% of 115 decks +5% synergy
Sensei's Divining Top
6% of 354 decks +0% synergy
Crystal Shard
6% of 354 decks +5% synergy
Howling Mine
6% of 354 decks +4% synergy
The Enigma Jewel
5% of 238 decks +5% synergy
Ashnod's Altar
5% of 354 decks -2% synergy
Tamiyo's Logbook
5% of 354 decks +5% synergy
Illusionist's Bracers
5% of 354 decks +4% synergy
Transmutation Font
5% of 119 decks +4% synergy
Enchantments
Smothering Tithe
55% of 155 decks +30% synergy
Ulvenwald Mysteries
54% of 134 decks +53% synergy
Parallel Lives
47% of 134 decks +40% synergy
Guardian Project
35% of 134 decks +26% synergy
Ongoing Investigation
34% of 134 decks +33% synergy
Rhystic Study
34% of 354 decks +6% synergy
Aura Shards
33% of 9 decks +24% synergy
Anointed Procession
32% of 155 decks +23% synergy
Impact Tremors
31% of 35 decks +22% synergy
Storm the Vault
29% of 35 decks +25% synergy
Warleader's Call
27% of 15 decks +16% synergy
Mechanized Production
26% of 354 decks +23% synergy
Doubling Season
22% of 134 decks +14% synergy
Black Market Connections
20% of 130 decks +9% synergy
Caretaker's Talent
20% of 15 decks +6% synergy
Mystic Remora
19% of 354 decks +1% synergy
Agent of the Iron Throne
18% of 130 decks +15% synergy
Nahiri's Resolve
15% of 27 decks +13% synergy
On the Trail
14% of 70 decks +13% synergy
Revel in Riches
14% of 130 decks +10% synergy
Candlekeep Sage
12% of 354 decks +12% synergy
Ghirapur Aether Grid
11% of 35 decks +11% synergy
Trouble in Pairs
11% of 72 decks +4% synergy
Ghostly Prison
10% of 155 decks -1% synergy
Utopia Sprawl
9% of 134 decks +1% synergy
Sylvan Library
9% of 134 decks -3% synergy
Touch the Spirit Realm
8% of 155 decks +6% synergy
Fleeting Memories
8% of 354 decks +8% synergy
Far Traveler
8% of 155 decks +7% synergy
Weirding Wood
7% of 134 decks +7% synergy
Wild Growth
7% of 134 decks -4% synergy
Monologue Tax
7% of 155 decks +5% synergy
Duelist's Heritage
7% of 155 decks +4% synergy
Thopter Spy Network
7% of 354 decks +4% synergy
Primal Vigor
7% of 134 decks +4% synergy
Intruder Alarm
6% of 354 decks +4% synergy
City of Death
6% of 134 decks +4% synergy
Thorough Investigation
6% of 155 decks +5% synergy
Trail of Evidence
6% of 354 decks +5% synergy
Animate Dead
5% of 130 decks -4% synergy
Growing Rites of Itlimoc
5% of 134 decks -0% synergy
Battles
Planeswalkers
Tezzeret, Master of the Bridge
40% of 130 decks +37% synergy
Oko, Thief of Crowns
23% of 134 decks +17% synergy
The Eternal Wanderer
17% of 155 decks +14% synergy
Aminatou, the Fateshifter
16% of 106 decks +13% synergy
Teferi, Time Raveler
13% of 155 decks +6% synergy
Venser, the Sojourner
12% of 155 decks +11% synergy
Tezzeret, Betrayer of Flesh
11% of 354 decks +9% synergy
Saheeli, Sublime Artificer
9% of 35 decks +4% synergy
Tezzeret the Seeker
6% of 354 decks +4% synergy
Utility Lands
Reliquary Tower
56% of 354 decks +27% synergy
Archway of Innovation
37% of 76 decks +32% synergy
Great Furnace
34% of 35 decks +29% synergy
Bojuka Bog
31% of 130 decks +0% synergy
Seat of the Synod
28% of 354 decks +22% synergy
Boseiju, Who Endures
27% of 134 decks +7% synergy
Otawara, Soaring City
27% of 354 decks +10% synergy
Vault of Whispers
25% of 130 decks +21% synergy
Tree of Tales
25% of 134 decks +23% synergy
Inventors' Fair
23% of 354 decks +20% synergy
Alchemist's Refuge
23% of 134 decks +16% synergy
Ancient Den
22% of 155 decks +16% synergy
Dryad Arbor
21% of 134 decks +17% synergy
Urza's Saga
20% of 354 decks +13% synergy
Mystic Sanctuary
19% of 354 decks +7% synergy
The Shire
17% of 134 decks +13% synergy
Academy Ruins
17% of 354 decks +12% synergy
Wirewood Lodge
16% of 134 decks +15% synergy
Fomori Vault
15% of 104 decks +14% synergy
Darksteel Citadel
15% of 354 decks +11% synergy
Havengul Laboratory
13% of 130 decks +13% synergy
Ancient Tomb
13% of 354 decks +2% synergy
Rogue's Passage
13% of 354 decks -7% synergy
Eiganjo, Seat of the Empire
12% of 155 decks +3% synergy
Yavimaya, Cradle of Growth
12% of 354 decks +2% synergy
Minamo, School at Water's Edge
11% of 354 decks +7% synergy
Buried Ruin
11% of 354 decks +6% synergy
Takenuma, Abandoned Mire
8% of 130 decks -2% synergy
Cabal Coffers
8% of 130 decks -3% synergy
Urborg, Tomb of Yawgmoth
7% of 354 decks -3% synergy
Treasure Vault
6% of 354 decks +4% synergy
Gaea's Cradle
6% of 134 decks +0% synergy
Command Beacon
6% of 354 decks +1% synergy
Rivendell
6% of 354 decks +0% synergy
War Room
6% of 354 decks -1% synergy
Temple of the False God
6% of 354 decks -4% synergy
Scavenger Grounds
5% of 354 decks +2% synergy
Mana Artifacts
Sol Ring
92% of 354 decks +8% synergy
Arcane Signet
79% of 354 decks +7% synergy
Talisman of Dominance
55% of 130 decks +23% synergy
Talisman of Progress
54% of 155 decks +32% synergy
Talisman of Hierarchy
52% of 106 decks +27% synergy
Azorius Signet
45% of 155 decks +18% synergy
Dimir Signet
38% of 130 decks +8% synergy
Talisman of Creativity
34% of 35 decks +5% synergy
Five Hundred Year Diary
34% of 265 decks +33% synergy
Thought Vessel
32% of 354 decks +15% synergy
Simic Signet
31% of 134 decks +16% synergy
Orzhov Signet
30% of 106 decks +3% synergy
Izzet Signet
29% of 35 decks +0% synergy
Talisman of Curiosity
25% of 134 decks +12% synergy
Fellwar Stone
25% of 354 decks +4% synergy
Talisman of Conviction
19% of 27 decks -4% synergy
Talisman of Indulgence
15% of 26 decks -11% synergy
Mind Stone
14% of 354 decks -3% synergy
Mana Crypt
11% of 354 decks +2% synergy
Mox Opal
10% of 354 decks +6% synergy
Chromatic Lantern
10% of 354 decks +0% synergy
Decanter of Endless Water
8% of 354 decks +3% synergy
Jeweled Lotus
8% of 354 decks +1% synergy
Mana Vault
7% of 354 decks +1% synergy
Commander's Sphere
7% of 354 decks -8% synergy
Gilded Lotus
6% of 354 decks +3% synergy
Lotus Petal
6% of 354 decks -0% synergy
Everflowing Chalice
6% of 354 decks +2% synergy
Thran Dynamo
6% of 354 decks +1% synergy
Basalt Monolith
6% of 354 decks +3% synergy
Midnight Clock
6% of 354 decks +0% synergy
The Mightstone and Weakstone
5% of 354 decks +4% synergy
Liquimetal Torque
5% of 354 decks +1% synergy
Chrome Mox
5% of 354 decks -1% synergy
Lands
Command Tower
79% of 354 decks +5% synergy
Zagoth Triome
75% of 8 decks +44% synergy
Overgrown Tomb
75% of 8 decks +32% synergy
Rejuvenating Springs
72% of 134 decks +44% synergy
Hallowed Fountain
71% of 155 decks +30% synergy
Hinterland Harbor
70% of 134 decks +43% synergy
Breeding Pool
69% of 134 decks +28% synergy
Temple Garden
67% of 9 decks +26% synergy
Godless Shrine
64% of 106 decks +23% synergy
Watery Grave
63% of 130 decks +22% synergy
Raffine's Tower
62% of 106 decks +34% synergy
Sea of Clouds
59% of 155 decks +33% synergy
Yavimaya Coast
59% of 134 decks +32% synergy
Spara's Headquarters
56% of 9 decks +24% synergy
Vault of Champions
50% of 106 decks +24% synergy
Savai Triome
50% of 24 decks +23% synergy
Xander's Lounge
50% of 26 decks +22% synergy
Steam Vents
49% of 35 decks +9% synergy
Dreamroot Cascade
49% of 134 decks +30% synergy
Morphic Pool
48% of 130 decks +22% synergy
Raugrin Triome
48% of 27 decks +21% synergy
Arcane Sanctum
48% of 106 decks +20% synergy
Glacial Fortress
46% of 155 decks +21% synergy
Training Center
46% of 35 decks +18% synergy
Flooded Grove
41% of 134 decks +29% synergy
Sacred Foundry
41% of 27 decks +4% synergy
Simic Growth Chamber
40% of 134 decks +20% synergy
Drowned Catacomb
40% of 130 decks +15% synergy
Vineglimmer Snarl
40% of 134 decks +29% synergy
Blood Crypt
38% of 26 decks -0% synergy
Adarkar Wastes
38% of 155 decks +21% synergy
Woodland Cemetery
38% of 8 decks +10% synergy
Prairie Stream
37% of 155 decks +4% synergy
Mystic Monastery
37% of 27 decks +11% synergy
Temple of Mystery
37% of 134 decks +19% synergy
Barkchannel Pathway
34% of 134 decks +25% synergy
Bountiful Promenade
33% of 9 decks +9% synergy
Isolated Chapel
33% of 106 decks +6% synergy
Waterlogged Grove
33% of 134 decks +25% synergy
Caves of Koilos
32% of 106 decks +4% synergy
Deserted Beach
32% of 155 decks +16% synergy
Exotic Orchard
31% of 354 decks -4% synergy
Hedge Maze
31% of 78 decks +17% synergy
Crumbling Necropolis
31% of 26 decks -0% synergy
Contaminated Landscape
29% of 24 decks +16% synergy
Underground River
28% of 130 decks +8% synergy
Flooded Strand
26% of 354 decks +16% synergy
Sunken Hollow
26% of 130 decks -8% synergy
Battlefield Forge
26% of 27 decks +0% synergy
Silverbluff Bridge
26% of 35 decks +20% synergy