Landroval, Horizon Witness (Card)

Landroval, Horizon Witness
In 3871 decks 0% of 2001152 decks
Kyle Massa
Jun 17, 2023
The Over/Under - Predicting the Popularity of Lord of the Rings Commanders
Kyle predicts which commanders from The Lord of the Rings: Tales of Middle-earth will be the most popular, and which commanders will be left in the 99.
Mike Carrozza
The Lord of the Rings: Tales of Middle-earth Set Review - White
The Lord of the Rings: Tales of Middle-earth is finally here after being announced over two years ago! So what does it bring to Commander?
Archidekt
Commander Spellbook
Moxfield
Scryfall
MTGStocks
Frodo, Adventurous Hobbit // Sam, Loyal Attendant
7.23% of 15743 decks 1139 decks
Aragorn, the Uniter
1.87% of 17684 decks 331 decks
Frodo, Sauron's Bane
8.34% of 3692 decks 308 decks
Aragorn and Arwen, Wed
13.95% of 724 decks 101 decks
Merry, Warden of Isengard // Pippin, Warden of Isengard
2.86% of 3499 decks 100 decks
Gwaihir the Windlord
21.49% of 442 decks 95 decks
Frodo Baggins
30.26% of 228 decks 69 decks
Samwise Gamgee
2.42% of 2768 decks 67 decks
Jodah, the Unifier
0.35% of 17928 decks 62 decks
Isshin, Two Heavens as One
0.26% of 19558 decks 50 decks
Keleth, Sunmane Familiar // Yoshimaru, Ever Faithful
3.94% of 1244 decks 49 decks
Kastral, the Windcrested
1.38% of 3345 decks 46 decks
Shadowfax, Lord of Horses
3.34% of 1286 decks 43 decks
Galadriel, Light of Valinor
0.46% of 8744 decks 40 decks
Aragorn, Hornburg Hero
1.91% of 2038 decks 39 decks
Éowyn, Shieldmaiden
0.42% of 8898 decks 37 decks
Gandalf the White
1.36% of 2644 decks 36 decks
Aragorn, King of Gondor
0.82% of 4378 decks 36 decks
New Cards
Luminous Rebuke
100% of 10 decks +3% synergy
Strix Lookout
77% of 13 decks +63% synergy
Alesha, Who Laughs at Fate
54% of 13 decks +38% synergy
Midnight Snack
33% of 60 decks +31% synergy
Dazzling Angel
32% of 56 decks -4% synergy
High Synergy Cards
Savvy Hunter
77% of 1471 decks +74% synergy
Pippin, Warden of Isengard
76% of 1459 decks +73% synergy
Bilbo, Birthday Celebrant
68% of 1471 decks +65% synergy
Rapacious Guest
64% of 1946 decks +62% synergy
Revive the Shire
62% of 2402 decks +60% synergy
Gollum, Obsessed Stalker
61% of 1946 decks +59% synergy
Lobelia, Defender of Bag End
57% of 1946 decks +57% synergy
Sanguine Bond
60% of 2002 decks +54% synergy
Mortify
66% of 2002 decks +54% synergy
Go for the Throat
60% of 2002 decks +53% synergy
Top Cards
Cultivate
65% of 2430 decks +19% synergy
Mirkwood Bats
65% of 2002 decks +53% synergy
Anguished Unmaking
62% of 2002 decks +38% synergy
Swords to Plowshares
57% of 3871 decks -5% synergy
Night's Whisper
57% of 2002 decks +48% synergy
Farmer Cotton
57% of 2373 decks +52% synergy
Treebeard, Gracious Host
56% of 2373 decks +53% synergy
Farseek
56% of 2430 decks +22% synergy
Toxic Deluge
55% of 2002 decks +37% synergy
Banquet Guests
54% of 2373 decks +51% synergy
Creatures
Tireless Provisioner
52% of 2430 decks +41% synergy
Birds of Paradise
52% of 2430 decks +25% synergy
Feasting Hobbit
52% of 2373 decks +50% synergy
Gilded Goose
52% of 2430 decks +48% synergy
Rosie Cotton of South Lane
51% of 3871 decks +47% synergy
Merry, Warden of Isengard
50% of 2373 decks +48% synergy
Motivated Pony
48% of 2373 decks +47% synergy
Butterbur, Bree Innkeeper
47% of 2430 decks +47% synergy
Prosperous Innkeeper
47% of 2430 decks +45% synergy
Legolas, Counter of Kills
47% of 583 decks +46% synergy
Essence Warden
46% of 2430 decks +43% synergy
Prize Pig
46% of 2373 decks +45% synergy
Peregrin Took
44% of 2430 decks +39% synergy
Gwaihir, Greatest of the Eagles
44% of 3725 decks +43% synergy
Meneldor, Swift Savior
44% of 1024 decks +43% synergy
Generous Ent
44% of 2430 decks +43% synergy
Théoden, King of Rohan
40% of 1041 decks +37% synergy
Elrond, Master of Healing
37% of 565 decks +35% synergy
Bilbo, Retired Burglar
37% of 589 decks +36% synergy
Arwen Undómiel
36% of 567 decks +35% synergy
Great Oak Guardian
35% of 2430 decks +34% synergy
The Gaffer
35% of 3725 decks +32% synergy
Éowyn, Fearless Knight
34% of 1063 decks +30% synergy
Woodfall Primus
34% of 2430 decks +33% synergy
Merry, Esquire of Rohan
34% of 1063 decks +31% synergy
Meriadoc Brandybuck
34% of 2430 decks +33% synergy
Galadriel of Lothlórien
34% of 563 decks +32% synergy
Pippin, Guard of the Citadel
33% of 1024 decks +29% synergy
Shire Shirriff
33% of 3810 decks +32% synergy
Orchard Strider
33% of 2430 decks +32% synergy
Prince Imrahil the Fair
33% of 1024 decks +29% synergy
Samwise Gamgee
32% of 2430 decks +27% synergy
Clinquant Skymage
32% of 38 decks +29% synergy
Aragorn, King of Gondor
31% of 561 decks +26% synergy
Éomer, Marshal of Rohan
31% of 1063 decks +30% synergy
Gwaihir the Windlord
30% of 1006 decks +29% synergy
Samwise the Stouthearted
30% of 3871 decks +29% synergy
Mentor of the Meek
30% of 3871 decks +23% synergy
Sanguine Syphoner
29% of 17 decks +10% synergy
Gimli, Counter of Kills
28% of 1063 decks +28% synergy
Gimli, Mournful Avenger
28% of 585 decks +28% synergy
Strider, Ranger of the North
28% of 585 decks +28% synergy
Aragorn, Hornburg Hero
28% of 286 decks +25% synergy
Eagles of the North
28% of 3769 decks +27% synergy
Éowyn, Shieldmaiden
27% of 589 decks +24% synergy
Gandalf the Grey
27% of 589 decks +26% synergy
Shadowfax, Lord of Horses
27% of 1063 decks +27% synergy
Faramir, Prince of Ithilien
27% of 1024 decks +24% synergy
Koma, World-Eater
26% of 19 decks +10% synergy
Galadriel, Light of Valinor
25% of 270 decks +22% synergy
Instants
Crypt Incursion
52% of 2002 decks +52% synergy
Path to Exile
50% of 3871 decks +4% synergy
Dazzling Denial
40% of 142 decks +38% synergy
Friendly Rivalry
39% of 575 decks +38% synergy
You Cannot Pass!
24% of 3871 decks +23% synergy
Fleeting Flight
21% of 56 decks +9% synergy
Slip On the Ring
20% of 3824 decks +19% synergy
Reprieve
20% of 3871 decks +15% synergy
Flame of Anor
19% of 572 decks +14% synergy
Glorious Gale
19% of 898 decks +18% synergy
Counterspell
18% of 1024 decks -25% synergy
Growth Spiral
16% of 583 decks -6% synergy
Stew the Coneys
16% of 2430 decks +15% synergy
Escape from Orthanc
16% of 2819 decks +15% synergy
Gimli's Fury
15% of 1041 decks +15% synergy
Shower of Arrows
14% of 1527 decks +13% synergy
Entish Restoration
14% of 2411 decks +6% synergy
Cast into the Fire
14% of 1063 decks +13% synergy
Refute
14% of 44 decks +6% synergy
Hobbit's Sting
13% of 3725 decks +13% synergy
Negate
13% of 1024 decks -10% synergy
Smite the Deathless
13% of 1063 decks +13% synergy
Legion Leadership
13% of 249 decks +5% synergy
Nasty End
13% of 2002 decks +10% synergy
Pippin's Bravery
13% of 2430 decks +12% synergy
Divine Resilience
12% of 128 decks +8% synergy
Don't Make a Sound
12% of 57 decks +7% synergy
Gollum's Bite
12% of 2002 decks +12% synergy
Hithlain Knots
12% of 898 decks +11% synergy
Council's Deliberation
12% of 1014 decks +11% synergy
Dawn's Truce
12% of 556 decks -4% synergy
Bombadil's Song
11% of 2430 decks +11% synergy
Lost to Legend
11% of 3811 decks +11% synergy
Second Breakfast
11% of 3871 decks +11% synergy
Boros Charm
11% of 1063 decks -14% synergy
Opt
11% of 1024 decks +1% synergy
Shelob's Ambush
11% of 2002 decks +10% synergy
Generous Gift
10% of 3871 decks -15% synergy
Unbreakable Formation
10% of 3871 decks +3% synergy
Naya Charm
10% of 585 decks +3% synergy
Olórin's Searing Light
9% of 634 decks +8% synergy
Strix Serenade
9% of 250 decks +3% synergy
Galadriel's Dismissal
9% of 1801 decks +6% synergy
Bedevil
9% of 265 decks -6% synergy
Soothing of Sméagol
8% of 996 decks +8% synergy
Press the Enemy
8% of 1014 decks +8% synergy
Beast Within
8% of 2430 decks -30% synergy
Bant Charm
8% of 583 decks +4% synergy
Give In to Violence
8% of 74 decks +7% synergy
Crumb and Get It
8% of 475 decks +6% synergy
Sorceries
Harmonize
46% of 2430 decks +37% synergy
Many Partings
36% of 2430 decks +34% synergy
Fell the Mighty
33% of 3871 decks +31% synergy
Fumigate
32% of 3871 decks +29% synergy
Dusk // Dawn
31% of 3871 decks +28% synergy
Felling Blow
22% of 18 decks +9% synergy
Sam's Desperate Rescue
22% of 1946 decks +21% synergy
Now for Wrath, Now for Ruin!
21% of 2819 decks +21% synergy
The Black Breath
21% of 1148 decks +21% synergy
Claim the Precious
21% of 1971 decks +19% synergy
Ringsight
19% of 177 decks +14% synergy
Arwen's Gift
18% of 1014 decks +18% synergy
The Battle of Bywater
18% of 3810 decks +15% synergy
Birthday Escape
17% of 996 decks +15% synergy
Supreme Verdict
16% of 1024 decks +2% synergy
The Ring Goes South
15% of 2402 decks +15% synergy
Preposterous Proportions
15% of 48 decks +7% synergy
Rally at the Hornburg
14% of 1019 decks +13% synergy
Lórien Revealed
13% of 978 decks +10% synergy
Quarrel's End
13% of 918 decks +13% synergy
Gandalf's Sanction
13% of 572 decks +12% synergy
Breaking of the Fellowship
13% of 1004 decks +13% synergy
Goblin Negotiation
13% of 23 decks +7% synergy
Taunt from the Rampart
13% of 984 decks +8% synergy
Rampant Growth
13% of 2430 decks -22% synergy
Ruinous Ultimatum
11% of 265 decks -7% synergy
Rally the Galadhrim
11% of 312 decks +10% synergy
Banish from Edoras
10% of 2819 decks +10% synergy
Migratory Route
10% of 1024 decks +9% synergy
Fire of Orthanc
10% of 1063 decks +10% synergy
Blasphemous Act
10% of 1063 decks -24% synergy
Electroduplicate
10% of 42 decks +6% synergy
Winged Words
9% of 1024 decks +8% synergy
Airborne Aid
9% of 1024 decks +9% synergy
Forth Eorlingas!
9% of 984 decks +6% synergy
Horses of the Bruinen
9% of 898 decks +8% synergy
Fell Beast's Shriek
8% of 284 decks +8% synergy
Elven Farsight
8% of 2373 decks +7% synergy
Fear, Fire, Foes!
8% of 1027 decks +8% synergy
Ranger's Firebrand
8% of 918 decks +8% synergy
Call for Aid
8% of 984 decks +7% synergy
Preordain
8% of 1024 decks -3% synergy
Overpowering Attack
7% of 181 decks +3% synergy
Lash of the Balrog
7% of 1971 decks +6% synergy
Exorcise
7% of 236 decks +5% synergy
Feed the Swarm
7% of 2002 decks -11% synergy
Urza's Ruinous Blast
7% of 3871 decks +4% synergy
Kodama's Reach
6% of 2430 decks -25% synergy
Austere Command
6% of 3871 decks -6% synergy
Isengard Unleashed
6% of 634 decks +6% synergy
Utility Artifacts
Doors of Durin
35% of 585 decks +31% synergy
Field-Tested Frying Pan
32% of 3725 decks +31% synergy
Quick-Draw Katana
31% of 13 decks -2% synergy
Well of Lost Dreams
29% of 3871 decks +28% synergy
Trading Post
24% of 3871 decks +23% synergy
Bilbo's Ring
21% of 2819 decks +21% synergy
Gimli's Axe
19% of 1043 decks +19% synergy
Mithril Coat
19% of 3794 decks +13% synergy
Hithlain Rope
17% of 3725 decks +16% synergy
The One Ring
16% of 3871 decks +8% synergy
Swiftfoot Boots
14% of 3871 decks -13% synergy
Mirror of Galadriel
13% of 3824 decks +12% synergy
Celestial Armor
12% of 128 decks +6% synergy
Galadhrim Bow
12% of 2411 decks +11% synergy
Sting, the Glinting Dagger
11% of 3769 decks +10% synergy
Lembas
11% of 3769 decks +11% synergy
Heaped Harvest
11% of 229 decks +8% synergy
Dúnedain Blade
10% of 3833 decks +10% synergy
Lightning Greaves
10% of 3871 decks -15% synergy
Barrow-Blade
10% of 3871 decks +9% synergy
Horn of the Mark
9% of 3810 decks +8% synergy
Andúril, Flame of the West
9% of 3810 decks +8% synergy
Andúril, Narsil Reforged
9% of 1801 decks +8% synergy
Brotherhood Regalia
8% of 685 decks +4% synergy
Horn of Gondor
8% of 3871 decks +7% synergy
Leyline Axe
8% of 128 decks +2% synergy
Short Bow
8% of 341 decks +6% synergy
Trailblazer's Boots
8% of 3871 decks +6% synergy
Whispersilk Cloak
7% of 3871 decks +3% synergy
Bident of Thassa
7% of 1024 decks +1% synergy
Stone of Erech
7% of 3769 decks +6% synergy
Wayfarer's Bauble
7% of 3871 decks -3% synergy
The Spear of Leonidas
7% of 210 decks +4% synergy
Diamond Pick-Axe
6% of 453 decks +3% synergy
Caduceus, Staff of Hermes
6% of 714 decks +2% synergy
Crown of Gondor
6% of 3725 decks +5% synergy
Raven Clan War-Axe
6% of 210 decks +5% synergy
Banner of Kinship
5% of 128 decks -7% synergy
Ravenous Amulet
5% of 56 decks -4% synergy
Fountainport Bell
5% of 523 decks +5% synergy
Heroes' Podium
5% of 3871 decks +5% synergy
Blackblade Reforged
5% of 3871 decks +1% synergy
Excalibur, Sword of Eden
5% of 685 decks +2% synergy
Enchantments
Assemble the Entmoot
49% of 2373 decks +48% synergy
Rising of the Day
38% of 1063 decks +32% synergy
Of Herbs and Stewed Rabbit
34% of 3725 decks +33% synergy
Annie Joins Up
34% of 136 decks +16% synergy
Dawn of Hope
27% of 3871 decks +25% synergy
Call for Unity
27% of 3871 decks +26% synergy
Call of the Ring
27% of 2002 decks +23% synergy
Flowering of the White Tree
22% of 3824 decks +17% synergy
Kellan Joins Up
17% of 150 decks +13% synergy
War of the Last Alliance
17% of 3871 decks +15% synergy
The Bath Song
15% of 1024 decks +14% synergy
Night of the Sweets' Revenge
13% of 1070 decks +11% synergy
One Ring to Rule Them All
13% of 2002 decks +11% synergy
In the Darkness Bind Them
12% of 121 decks +7% synergy
There and Back Again
12% of 1063 decks +10% synergy
Fog on the Barrow-Downs
12% of 2819 decks +12% synergy
War Squeak
12% of 145 decks +11% synergy
Tale of Tinúviel
11% of 3871 decks +11% synergy
Favorable Winds
11% of 1024 decks +10% synergy
Gimli's Reckless Might
11% of 634 decks +10% synergy
Elven Chorus
11% of 2399 decks +6% synergy
Echoing Assault
10% of 116 decks +6% synergy
Banishing Light
10% of 3871 decks +8% synergy
Fiery Inscription
10% of 1035 decks +6% synergy
Leyline of the Guildpact
10% of 41 decks -13% synergy
Rakdos Joins Up
10% of 72 decks +6% synergy
Murmuration
9% of 475 decks +8% synergy
Shortcut to Mushrooms
9% of 2394 decks +9% synergy
Oath of Eorl
9% of 984 decks +8% synergy
Dawn of a New Age
9% of 3769 decks +7% synergy
Scroll of Isildur
9% of 1006 decks +8% synergy
Song of Eärendil
8% of 553 decks +7% synergy
Lunar Convocation
8% of 164 decks +1% synergy
Innkeeper's Talent
7% of 268 decks -1% synergy
Reconnaissance Mission
7% of 1024 decks +3% synergy
Vraska Joins Up
7% of 191 decks +2% synergy
Frantic Strength
7% of 82 decks +5% synergy
Lost Isle Calling
7% of 996 decks +7% synergy
Morgul-Knife Wound
7% of 2002 decks +7% synergy
Blacksmith's Talent
7% of 145 decks +5% synergy
Mardu Ascendancy
7% of 265 decks +4% synergy
Rhythm of the Wild
7% of 585 decks -17% synergy
Dazzling Theater // Prop Room
7% of 196 decks -10% synergy
Warleader's Call
7% of 378 decks -4% synergy
Unable to Scream
7% of 76 decks +3% synergy
Gravitational Shift
7% of 1024 decks +6% synergy
Storm of Saruman
7% of 1024 decks +5% synergy
Fealty to the Realm
6% of 978 decks +6% synergy
Fires of Mount Doom
6% of 1043 decks +6% synergy
Painter's Studio // Defaced Gallery
6% of 65 decks +4% synergy
Planeswalkers
Dihada, Binder of Wills
9% of 265 decks +4% synergy
Utility Lands
Rogue's Passage
48% of 3871 decks +29% synergy
Access Tunnel
35% of 3871 decks +33% synergy
The Shire
33% of 2430 decks +29% synergy
Rivendell
30% of 1024 decks +24% synergy
Ghost Quarter
28% of 3871 decks +26% synergy
Mines of Moria
27% of 1063 decks +23% synergy
Minas Tirith
24% of 3871 decks +15% synergy
Great Hall of the Citadel
17% of 3824 decks +16% synergy
Lilypad Village
17% of 200 decks +15% synergy
Restless Anchorage
15% of 435 decks +12% synergy
Minas Morgul, Dark Fortress
11% of 627 decks +9% synergy
Lupinflower Village
9% of 598 decks +7% synergy
Bojuka Bog
8% of 2002 decks -22% synergy
Reliquary Tower
8% of 3871 decks -22% synergy
Restless Bivouac
8% of 672 decks +4% synergy
Restless Cottage
7% of 469 decks +3% synergy
Barad-dûr
7% of 2002 decks +5% synergy
Restless Prairie
7% of 719 decks +5% synergy
Restless Vents
7% of 114 decks +4% synergy
Shinka, the Bloodsoaked Keep
7% of 1063 decks +5% synergy
Monumental Henge
6% of 796 decks +3% synergy
Windbrisk Heights
6% of 3871 decks +1% synergy
Seaside Haven
6% of 1024 decks +5% synergy
Hidden Courtyard
6% of 1447 decks +4% synergy
Rockface Village
5% of 168 decks +4% synergy
Minamo, School at Water's Edge
5% of 1024 decks +1% synergy
Temple of the False God
5% of 3871 decks -5% synergy
Mana Artifacts
Sol Ring
77% of 3871 decks -7% synergy
Arcane Signet
72% of 3871 decks -1% synergy
Commander's Sphere
50% of 3871 decks +34% synergy
Chromatic Lantern
34% of 3871 decks +25% synergy
Haunted Screen
30% of 10 decks +23% synergy
Pristine Talisman
27% of 3871 decks +26% synergy
Inherited Envelope
20% of 3725 decks +19% synergy
Talisman of Conviction
18% of 1063 decks -5% synergy
Boros Signet
15% of 1063 decks -9% synergy
Talisman of Progress
15% of 1024 decks -8% synergy
Azorius Signet
14% of 1024 decks -12% synergy
Mind Stone
12% of 3871 decks -5% synergy
Phial of Galadriel
10% of 3824 decks +10% synergy
Rakdos Signet
10% of 265 decks -20% synergy
Patchwork Banner
9% of 523 decks -0% synergy
Orzhov Signet
8% of 2002 decks -18% synergy
Thought Vessel
8% of 3871 decks -9% synergy
Dimir Signet
8% of 177 decks -21% synergy
Fellwar Stone
6% of 3871 decks -15% synergy
Mardu Banner
6% of 265 decks +5% synergy
Talisman of Indulgence
6% of 265 decks -20% synergy
Talisman of Hierarchy
6% of 2002 decks -19% synergy
Gruul Signet
5% of 585 decks -7% synergy
Lands
Sandsteppe Citadel
85% of 1471 decks +60% synergy
Woodland Cemetery
82% of 1471 decks +54% synergy
Necroblossom Snarl
80% of 1471 decks +68% synergy
Murmuring Bosk
75% of 1471 decks +67% synergy
Command Tower
73% of 3871 decks -1% synergy
Isolated Chapel
69% of 2002 decks +41% synergy
Scoured Barrens
67% of 2002 decks +58% synergy
Shineshadow Snarl
66% of 2002 decks +53% synergy
Canopy Vista
65% of 2430 decks +28% synergy
Graypelt Refuge
60% of 2430 decks +57% synergy
Fortified Village
57% of 2430 decks +42% synergy
Sunpetal Grove
57% of 2430 decks +34% synergy
Brushland
53% of 2430 decks +37% synergy
Scattered Groves
53% of 2430 decks +45% synergy
Evolving Wilds
51% of 3871 decks +30% synergy
Exotic Orchard
49% of 3871 decks +13% synergy
Path of Ancestry
48% of 3871 decks +27% synergy
Shire Terrace
45% of 3871 decks +44% synergy
Prairie Stream
35% of 1024 decks +2% synergy
Tranquil Cove
32% of 1024 decks +25% synergy
Ash Barrens
30% of 3871 decks +26% synergy
Tranquil Landscape
29% of 113 decks +13% synergy
Sulfur Falls
27% of 589 decks -4% synergy
Nomad Outpost
27% of 265 decks -1% synergy
Wind-Scarred Crag
26% of 1063 decks +20% synergy
Clifftop Retreat
26% of 1063 decks -3% synergy
Glacial Fortress
25% of 1024 decks -1% synergy
Perilous Landscape
24% of 91 decks +12% synergy
Port Town
23% of 1024 decks +7% synergy
Furycalm Snarl
23% of 1063 decks +9% synergy
Shattered Landscape
23% of 53 decks +10% synergy
Smoldering Marsh
22% of 265 decks -10% synergy
Battlefield Forge
22% of 1063 decks -3% synergy
The Grey Havens
22% of 3794 decks +20% synergy
Bountiful Landscape
22% of 64 decks +7% synergy
Sheltering Landscape
21% of 101 decks +8% synergy
Hushwood Verge
19% of 148 decks -1% synergy
Thornwood Falls
19% of 583 decks +11% synergy
Sunken Hollow
19% of 177 decks -16% synergy
Seaside Citadel
18% of 583 decks -8% synergy
Hinterland Harbor
18% of 583 decks -10% synergy
Mystic Monastery
18% of 589 decks -9% synergy
Jungle Shrine
17% of 585 decks -15% synergy
Lakeside Shack
17% of 42 decks +15% synergy
Bloodfell Caves
17% of 265 decks +10% synergy
Frontier Bivouac
16% of 461 decks -11% synergy
Floodfarm Verge
16% of 88 decks -2% synergy
Rejuvenating Springs
16% of 583 decks -13% synergy
Raucous Carnival
15% of 97 decks +13% synergy
Arcane Sanctum
15% of 177 decks -12% synergy