Praetor's Counsel (Card)

Praetor's Counsel
In 19076 decks 1% of 1790177 decks
Trent Trombley
Apr 7, 2021
Strixhaven Set Review — Witherbloom and Black
Strixhaven's death magic is at the ready! Let's review the set's black cards and Witherbloom spells!
Archidekt
Commander Spellbook
Moxfield
Scryfall
MTGStocks
Top Commanders (18)
Borborygmos Enraged
45.66% of 2221 decks 1014 decks
Multani, Maro-Sorcerer
41.75% of 400 decks 167 decks
Sasaya, Orochi Ascendant
33.57% of 1144 decks 384 decks
Freyalise, Llanowar's Fury
32.95% of 1490 decks 491 decks
Vorinclex, Voice of Hunger
30.46% of 499 decks 152 decks
Vorinclex
23.63% of 931 decks 220 decks
Grothama, All-Devouring
13.45% of 1175 decks 158 decks
Ezuri, Renegade Leader
12.96% of 2693 decks 349 decks
Omnath, Locus of Mana
12.58% of 5248 decks 660 decks
Borborygmos and Fblthp
11.34% of 1446 decks 164 decks
Jadzi, Oracle of Arcavios
10.59% of 1521 decks 161 decks
Jodah, Archmage Eternal
10.47% of 8215 decks 860 decks
Alaundo the Seer
8.94% of 2830 decks 253 decks
Raggadragga, Goreguts Boss
8.53% of 7032 decks 600 decks
Kruphix, God of Horizons
7.23% of 2974 decks 215 decks
Azusa, Lost but Seeking
7.20% of 3027 decks 218 decks
Marwyn, the Nurturer
6.27% of 5454 decks 342 decks
Gargos, Vicious Watcher
5.23% of 4721 decks 247 decks
New Cards (5)
Lumra, Bellow of the Woods
91% of 23 decks +41% synergy
Leyline of the Guildpact
61% of 84 decks +58% synergy
Commercial District
41% of 385 decks +37% synergy
Hedge Maze
32% of 330 decks +27% synergy
Underground Mortuary
28% of 223 decks +22% synergy
High Synergy Cards (7)
Conflux
40% of 2196 decks +40% synergy
Ruinous Ultimatum
41% of 2120 decks +39% synergy
Cultivate
54% of 19071 decks +31% synergy
Beast Within
48% of 19070 decks +29% synergy
Kodama's Reach
43% of 19071 decks +28% synergy
Atraxa, Grand Unifier
28% of 1301 decks +28% synergy
Emergent Ultimatum
26% of 3260 decks +25% synergy
Top Cards (10)
Swords to Plowshares
42% of 4602 decks +13% synergy
Fist of Suns
37% of 2196 decks +37% synergy
Counterspell
34% of 6935 decks +13% synergy
Heroic Intervention
34% of 18849 decks +20% synergy
Rampant Growth
34% of 19071 decks +17% synergy
Eternal Witness
31% of 19071 decks +21% synergy
Blasphemous Act
30% of 7068 decks +14% synergy
Timeless Lotus
30% of 1436 decks +29% synergy
Nature's Lore
30% of 19071 decks +15% synergy
Llanowar Elves
29% of 19071 decks +19% synergy
Creatures (50)
Elvish Mystic
27% of 19038 decks +18% synergy
The Master, Transcendent
24% of 59 decks +21% synergy
Raul, Trouble Shooter
24% of 59 decks +21% synergy
Maelstrom Archangel
23% of 2196 decks +22% synergy
Feral Ghoul
22% of 94 decks +17% synergy
Jegantha, the Wellspring
22% of 2098 decks +22% synergy
Sakura-Tribe Elder
22% of 19071 decks +12% synergy
Beast Whisperer
21% of 18634 decks +15% synergy
Nightkin Ambusher
21% of 57 decks +18% synergy
Fyndhorn Elves
21% of 19071 decks +14% synergy
Progenitus
21% of 2196 decks +21% synergy
Zacama, Primal Calamity
21% of 2876 decks +20% synergy
Reclamation Sage
20% of 19015 decks +14% synergy
Alpha Deathclaw
20% of 94 decks +17% synergy
Screeching Scorchbeast
20% of 94 decks +16% synergy
Elesh Norn, Grand Cenobite
19% of 4602 decks +16% synergy
Tatyova, Benthic Druid
19% of 6808 decks +16% synergy
Bringer of the Black Dawn
18% of 2196 decks +18% synergy
Agent Frank Horrigan
18% of 99 decks +15% synergy
Maelstrom Wanderer
18% of 3358 decks +17% synergy
Elesh Norn, Mother of Machines
18% of 2405 decks +15% synergy
Faeburrow Elder
18% of 4400 decks +15% synergy
Birds of Paradise
17% of 19071 decks +5% synergy
Mina and Denn, Wildborn
17% of 7012 decks +16% synergy
Infesting Radroach
17% of 94 decks +13% synergy
Primeval Spawn
17% of 1486 decks +16% synergy
Etali, Primal Conqueror
16% of 3084 decks +13% synergy
Bloatfly Swarm
16% of 98 decks +13% synergy
Nezahal, Primal Tide
16% of 6822 decks +14% synergy
Goblin Anarchomancer
16% of 6487 decks +13% synergy
Azusa, Lost but Seeking
16% of 19071 decks +13% synergy
Avenger of Zendikar
16% of 19071 decks +11% synergy
Sheoldred, Whispering One
16% of 5228 decks +13% synergy
Sheoldred
16% of 1982 decks +13% synergy
Seedborn Muse
16% of 19071 decks +12% synergy
Oracle of Mul Daya
15% of 19071 decks +13% synergy
Solphim, Mayhem Dominus
15% of 3404 decks +13% synergy
Jin-Gitaxias, Core Augur
15% of 6935 decks +14% synergy
Nyxbloom Ancient
15% of 18271 decks +13% synergy
Elesh Norn
15% of 1811 decks +14% synergy
Ignoble Hierarch
15% of 2649 decks +12% synergy
Zopandrel, Hunger Dominus
15% of 8844 decks +12% synergy
Jin-Gitaxias, Progress Tyrant
14% of 5857 decks +13% synergy
Kutzil, Malamet Exemplar
14% of 592 decks +9% synergy
Jolene, Plundering Pugilist
14% of 43 decks +13% synergy
Hancock, Ghoulish Mayor
14% of 94 decks +12% synergy
Ghalta, Stampede Tyrant
14% of 2113 decks +9% synergy
Sheoldred, the Apocalypse
13% of 3537 decks +10% synergy
Mirelurk Queen
13% of 112 decks +10% synergy
Avacyn, Angel of Hope
13% of 4601 decks +12% synergy
Instants (50)
Path to Exile
28% of 4602 decks +8% synergy
Chaos Warp
27% of 7068 decks +11% synergy
Cyclonic Rift
27% of 6928 decks +12% synergy
Growth Spiral
26% of 6747 decks +21% synergy
Return of the Wildspeaker
24% of 18369 decks +17% synergy
Atomize
23% of 94 decks +19% synergy
Archdruid's Charm
21% of 1287 decks +16% synergy
Krosan Grip
21% of 19071 decks +16% synergy
Teferi's Protection
20% of 4523 decks +11% synergy
Assassin's Trophy
20% of 5096 decks +13% synergy
Radstorm
19% of 112 decks +12% synergy
Mutational Advantage
18% of 125 decks +14% synergy
Harrow
18% of 19071 decks +13% synergy
Unite the Coalition
18% of 1486 decks +17% synergy
Contaminated Drink
18% of 57 decks +15% synergy
Entish Restoration
17% of 5854 decks +12% synergy
Great Train Heist
16% of 44 decks +10% synergy
Brainstorm
15% of 6935 decks +4% synergy
Negate
15% of 6935 decks +4% synergy
Arcane Denial
15% of 6935 decks +6% synergy
Generous Gift
14% of 4425 decks +2% synergy
Vampiric Tutor
14% of 5228 decks +4% synergy
Putrefy
14% of 5227 decks +10% synergy
Worldly Tutor
13% of 19071 decks +6% synergy
Anguished Unmaking
13% of 2807 decks +8% synergy
Nature's Claim
13% of 19071 decks +7% synergy
Crop Rotation
13% of 19071 decks +8% synergy
Enlightened Tutor
12% of 4602 decks +4% synergy
Final Showdown
12% of 25 decks +8% synergy
Tamiyo's Safekeeping
12% of 15316 decks +8% synergy
Mystical Tutor
11% of 6935 decks +4% synergy
Mana Drain
11% of 6935 decks +4% synergy
Fierce Guardianship
11% of 6609 decks +2% synergy
Blood for the Blood God!
10% of 1638 decks +9% synergy
An Offer You Can't Refuse
10% of 5504 decks -0% synergy
Swan Song
10% of 6912 decks +1% synergy
Return to Nature
10% of 18539 decks +6% synergy
Deflecting Swat
10% of 6779 decks +2% synergy
Tyvar's Stand
10% of 9093 decks +7% synergy
Stroke of Midnight
9% of 932 decks +2% synergy
Dovin's Veto
9% of 3025 decks +5% synergy
Void Rend
9% of 2160 decks +7% synergy
Boros Charm
9% of 2915 decks +3% synergy
Blue Sun's Zenith
9% of 6935 decks +7% synergy
Pongify
9% of 6935 decks +3% synergy
Chord of Calling
9% of 19071 decks +6% synergy
Rapid Hybridization
8% of 6918 decks +4% synergy
Dig Through Time
8% of 6904 decks +5% synergy
Eladamri's Call
8% of 4600 decks +5% synergy
No More Lies
8% of 102 decks +7% synergy
Sorceries (50)
Eerie Ultimatum
26% of 2711 decks +25% synergy
Genesis Ultimatum
25% of 3189 decks +24% synergy
Nuclear Fallout
23% of 94 decks +18% synergy
Three Visits
23% of 19071 decks +11% synergy
In Garruk's Wake
23% of 5208 decks +21% synergy
Farseek
23% of 19071 decks +7% synergy
Rishkar's Expertise
22% of 18849 decks +17% synergy
Worldsoul's Rage
22% of 385 decks +21% synergy
Demonic Tutor
21% of 5228 decks +9% synergy
Skyshroud Claim
21% of 19071 decks +16% synergy
Cruel Ultimatum
21% of 2388 decks +20% synergy
Harmonize
20% of 19071 decks +16% synergy
Flare of Cultivation
17% of 35 decks +10% synergy
Last March of the Ents
17% of 5391 decks +14% synergy
Shamanic Revelation
16% of 18986 decks +11% synergy
Inspired Ultimatum
16% of 2289 decks +16% synergy
Bala Ged Recovery
16% of 18026 decks +11% synergy
Villainous Wealth
15% of 3406 decks +14% synergy
Overwhelming Stampede
15% of 19071 decks +12% synergy
Make Your Own Luck
14% of 35 decks +13% synergy
Green Sun's Zenith
14% of 19071 decks +11% synergy
Genesis Wave
14% of 19071 decks +13% synergy
Brilliant Ultimatum
14% of 2594 decks +13% synergy
Fevered Suspicion
13% of 2597 decks +13% synergy
Farewell
13% of 3864 decks +7% synergy
Breach the Multiverse
13% of 2236 decks +11% synergy
Duneblast
13% of 2824 decks +13% synergy
Sea Gate Restoration
13% of 6558 decks +10% synergy
Explore
13% of 19071 decks +9% synergy
Decimate
13% of 7068 decks +11% synergy
Call Forth the Tempest
13% of 921 decks +11% synergy
Regrowth
12% of 19071 decks +10% synergy
Urban Evolution
12% of 6916 decks +11% synergy
Nissa's Pilgrimage
11% of 18971 decks +11% synergy
Finale of Devastation
11% of 18539 decks +7% synergy
Aminatou's Augury
11% of 6783 decks +10% synergy
Mnemonic Deluge
11% of 6535 decks +10% synergy
Splendid Reclamation
11% of 18885 decks +9% synergy
Creeping Renaissance
11% of 19065 decks +10% synergy
Vandalblast
11% of 7067 decks +2% synergy
Casualties of War
10% of 5071 decks +9% synergy
Ezuri's Predation
10% of 18921 decks +9% synergy
Change of Fortune
10% of 6214 decks +10% synergy
Doppelgang
10% of 481 decks +8% synergy
Austere Command
10% of 4602 decks +4% synergy
Insatiable Avarice
10% of 31 decks +6% synergy
Explosive Vegetation
10% of 19071 decks +8% synergy
White Sun's Twilight
10% of 2362 decks +7% synergy
Life from the Loam
9% of 19071 decks +8% synergy
Diabolic Tutor
9% of 5228 decks +6% synergy
Utility Artifacts (19)
Swiftfoot Boots
28% of 19072 decks -1% synergy
Lightning Greaves
24% of 19075 decks -1% synergy
Conduit of Worlds
16% of 9602 decks +13% synergy
The Great Henge
15% of 18369 decks +10% synergy
Emerald Medallion
13% of 19075 decks +11% synergy
Power Fist
12% of 358 decks +8% synergy
The Skullspore Nexus
10% of 2113 decks +6% synergy
Lifecrafter's Bestiary
10% of 18849 decks +7% synergy
Crucible of Worlds
9% of 19075 decks +6% synergy
Door to Nothingness
9% of 2196 decks +9% synergy
Skullclamp
7% of 19075 decks -6% synergy
Rhonas's Monument
6% of 18832 decks +5% synergy
Sword of Wealth and Power
6% of 112 decks -2% synergy
Ozolith, the Shattered Spire
6% of 7334 decks +2% synergy
Mithril Coat
6% of 5517 decks -1% synergy
Akroma's Memorial
6% of 19075 decks +5% synergy
Staff of Domination
6% of 19075 decks +4% synergy
Thousand-Year Elixir
5% of 19075 decks +3% synergy
Bolas's Citadel
5% of 5072 decks -0% synergy
Enchantments (50)
Mirari's Wake
24% of 4600 decks +21% synergy
Annie Joins Up
24% of 21 decks +20% synergy
Rhystic Study
21% of 6935 decks +7% synergy
Maelstrom Nexus
21% of 2196 decks +20% synergy
Smothering Tithe
20% of 4449 decks +9% synergy
Rhythm of the Wild
20% of 6894 decks +14% synergy
Struggle for Project Purity
19% of 112 decks +14% synergy
Omniscience
18% of 6930 decks +17% synergy
Virtue of Strength
18% of 3684 decks +15% synergy
Garruk's Uprising
18% of 18084 decks +11% synergy
Vault 12: The Necropolis
17% of 98 decks +15% synergy
Zendikar Resurgent
16% of 18913 decks +15% synergy
Sylvan Library
16% of 19071 decks +9% synergy
Exploration
15% of 19071 decks +12% synergy
City on Fire
15% of 3024 decks +12% synergy
Tribute to the World Tree
15% of 7901 decks +10% synergy
Phyrexian Arena
14% of 5228 decks +6% synergy
Insidious Roots
12% of 241 decks +10% synergy
Case of the Locked Hothouse
12% of 1036 decks +10% synergy
One with the Multiverse
12% of 3892 decks +11% synergy
Temur Ascendancy
12% of 3341 decks +10% synergy
Guardian Project
12% of 18591 decks +8% synergy
Abundance
12% of 19071 decks +11% synergy
Sunbird's Invocation
12% of 6967 decks +11% synergy
Up the Beanstalk
11% of 4000 decks +8% synergy
Leyline of Anticipation
11% of 6935 decks +8% synergy
Growing Rites of Itlimoc
11% of 18774 decks +8% synergy
Unnatural Growth
11% of 16756 decks +8% synergy
Kenrith's Transformation
11% of 18369 decks +7% synergy
Asceticism
10% of 19071 decks +9% synergy
Trouble in Pairs
10% of 195 decks +5% synergy
Beastmaster Ascension
10% of 19071 decks +7% synergy
Burgeoning
10% of 19071 decks +8% synergy
Aura Shards
10% of 4600 decks +7% synergy
Grim Reaper's Sprint
9% of 109 decks +6% synergy
Mana Reflection
9% of 19071 decks +8% synergy
Mystic Remora
9% of 6935 decks +0% synergy
Spelunking
9% of 2936 decks +6% synergy
Greater Good
9% of 19071 decks +7% synergy
Teferi's Ageless Insight
9% of 6578 decks +6% synergy
Song of the Dryads
9% of 19009 decks +8% synergy
Fiery Emancipation
8% of 6750 decks +7% synergy
Elven Chorus
8% of 5608 decks +6% synergy
Wild Growth
8% of 19071 decks +3% synergy
Warleader's Call
8% of 111 decks +3% synergy
Well Rested
8% of 358 decks +5% synergy
Wilderness Reclamation
8% of 18591 decks +6% synergy
Wizard Class
8% of 6194 decks +6% synergy
Ghostly Prison
8% of 4602 decks +2% synergy
Fires of Yavimaya
8% of 7068 decks +6% synergy
Battles (3)
Invasion of Ikoria
7% of 7334 decks +4% synergy
Invasion of Kaldheim
7% of 2901 decks +6% synergy
Invasion of Alara
6% of 884 decks +5% synergy
Planeswalkers (12)
Nissa, Who Shakes the World
14% of 18559 decks +12% synergy
Nicol Bolas, God-Pharaoh
12% of 2354 decks +11% synergy
Vraska, Betrayal's Sting
10% of 2601 decks +8% synergy
Nissa, Ascended Animist
10% of 9360 decks +9% synergy
Garruk, Primal Hunter
9% of 19068 decks +8% synergy
Oko, the Ringleader
9% of 35 decks +7% synergy
Wrenn and Seven
8% of 16823 decks +7% synergy
Ajani, Sleeper Agent
7% of 3119 decks +7% synergy
Freyalise, Llanowar's Fury
7% of 19009 decks +6% synergy
Nicol Bolas, Planeswalker
7% of 2388 decks +6% synergy
Jace, Wielder of Mysteries
6% of 6741 decks +5% synergy
Tamiyo, Compleated Sage
5% of 5855 decks +5% synergy
Utility Lands (42)
Reliquary Tower
48% of 19075 decks +20% synergy
Yavimaya, Cradle of Growth
22% of 17387 decks +13% synergy
Bojuka Bog
22% of 5228 decks +6% synergy
Kessig Wolf Run
21% of 7066 decks +17% synergy
Rogue's Passage
20% of 19059 decks +2% synergy
Boseiju, Who Endures
20% of 16017 decks +10% synergy
Mosswort Bridge
16% of 19071 decks +11% synergy
Nykthos, Shrine to Nyx
14% of 19039 decks +8% synergy
Alchemist's Refuge
14% of 6928 decks +13% synergy
Castle Garenbrig
14% of 18377 decks +12% synergy
Temple of the False God
14% of 19075 decks +4% synergy
Tranquil Thicket
13% of 19071 decks +11% synergy
Mariposa Military Base
12% of 382 decks +9% synergy
Oran-Rief, the Vastwood
11% of 19071 decks +8% synergy
Mystic Sanctuary
10% of 6682 decks +3% synergy
Cabal Coffers
9% of 5228 decks +3% synergy
Forgotten Cave
9% of 7070 decks +7% synergy
Otawara, Soaring City
9% of 5746 decks +0% synergy
War Room
8% of 17875 decks +1% synergy
Dryad Arbor
8% of 19071 decks +6% synergy
Gavony Township
8% of 4600 decks +5% synergy
Command Beacon
7% of 18925 decks +2% synergy
Field of the Dead
7% of 18455 decks +3% synergy
Valakut, the Molten Pinnacle
7% of 7070 decks +6% synergy
Restless Vinestalk
7% of 1284 decks +6% synergy
Restless Ridgeline
7% of 1098 decks +6% synergy
Ghost Quarter
7% of 19075 decks +4% synergy
Argoth, Sanctum of Nature
6% of 10320 decks +5% synergy
Wirewood Lodge
6% of 19071 decks +5% synergy
Takenuma, Abandoned Mire
6% of 4406 decks +0% synergy
Strip Mine
6% of 19075 decks +3% synergy
Ancient Tomb
6% of 19075 decks -5% synergy
Gaea's Cradle
6% of 19071 decks +3% synergy
Rivendell
6% of 1849 decks +2% synergy
Echoing Deeps
6% of 2793 decks +4% synergy
Urborg, Tomb of Yawgmoth
6% of 19075 decks -5% synergy
Thespian's Stage
6% of 19049 decks +3% synergy
Slippery Karst
6% of 19071 decks +5% synergy
Karn's Bastion
6% of 18543 decks +1% synergy
Scavenger Grounds
5% of 18811 decks +2% synergy
Lair of the Hydra
5% of 17088 decks +4% synergy
Raging Ravine
5% of 7068 decks +5% synergy
Mana Artifacts (20)
Sol Ring
69% of 19075 decks -16% synergy
Arcane Signet
36% of 18373 decks -35% synergy
Thought Vessel
15% of 18925 decks -0% synergy
Simic Signet
15% of 6933 decks +12% synergy
Chromatic Lantern
12% of 19059 decks +2% synergy
Gruul Signet
11% of 7068 decks +8% synergy
Golgari Signet
11% of 5227 decks +8% synergy
Decanter of Endless Water
10% of 13646 decks +4% synergy
Commander's Sphere
9% of 19013 decks -7% synergy
Selesnya Signet
7% of 4600 decks +5% synergy
Dimir Signet
7% of 3424 decks -1% synergy
Caged Sun
7% of 19074 decks +4% synergy
Talisman of Curiosity
7% of 6715 decks +4% synergy
Fellwar Stone
6% of 19075 decks -15% synergy
Izzet Signet
6% of 3361 decks -1% synergy
Mana Crypt
5% of 19075 decks -6% synergy
Boros Signet
5% of 2925 decks -1% synergy
Throne of Eldraine
5% of 3868 decks +2% synergy
Azorius Signet
5% of 3128 decks -1% synergy
Chromatic Orrery
5% of 18120 decks +3% synergy
Lands (50)
Command Tower
54% of 19072 decks -19% synergy
Stomping Ground
43% of 7068 decks +34% synergy
The World Tree
42% of 2045 decks +40% synergy
Breeding Pool
42% of 6933 decks +32% synergy
Overgrown Tomb
40% of 5227 decks +30% synergy
Cinder Glade
40% of 7024 decks +31% synergy
Temple Garden
38% of 4600 decks +29% synergy
Ketria Triome
38% of 3203 decks +34% synergy
Spara's Headquarters
36% of 2562 decks +32% synergy
Ziatora's Proving Ground
36% of 2385 decks +32% synergy
Zagoth Triome
35% of 3255 decks +32% synergy
Jetmir's Garden
35% of 2399 decks +31% synergy
Steam Vents
34% of 3361 decks +25% synergy
Hallowed Fountain
33% of 3128 decks +24% synergy
Indatha Triome
32% of 2706 decks +29% synergy
Watery Grave
32% of 3424 decks +21% synergy
Blood Crypt
30% of 2897 decks +21% synergy
Godless Shrine
30% of 2837 decks +20% synergy
Raugrin Triome
29% of 2289 decks +26% synergy
Sacred Foundry
29% of 2925 decks +20% synergy
Raffine's Tower
28% of 2145 decks +24% synergy
Xander's Lounge
27% of 1965 decks +24% synergy
Rootbound Crag
27% of 7068 decks +22% synergy
Gruul Turf
27% of 7068 decks +23% synergy
Hinterland Harbor
27% of 6929 decks +22% synergy
Canopy Vista
27% of 4558 decks +19% synergy
Frontier Bivouac
26% of 3341 decks +23% synergy
Simic Growth Chamber
26% of 6933 decks +21% synergy
Jungle Shrine
25% of 2924 decks +22% synergy
Opulent Palace
25% of 3406 decks +22% synergy
Savai Triome
25% of 2116 decks +22% synergy
Rejuvenating Springs
24% of 6513 decks +18% synergy
Rockfall Vale
23% of 6352 decks +18% synergy
Seaside Citadel
23% of 3128 decks +20% synergy
Lush Portico
23% of 194 decks +19% synergy
Myriad Landscape
23% of 19013 decks +1% synergy
Spire Garden
22% of 6933 decks +16% synergy
Yavimaya Coast
21% of 6933 decks +16% synergy
Evolving Wilds
21% of 19075 decks -1% synergy
Savage Lands
20% of 2896 decks +18% synergy
Temple of Mystery
20% of 6910 decks +16% synergy
Sandsteppe Citadel
19% of 2824 decks +16% synergy
Woodland Cemetery
19% of 5225 decks +14% synergy
Exotic Orchard
19% of 19075 decks -15% synergy
Mystic Monastery
19% of 2391 decks +16% synergy
Raucous Theater
19% of 86 decks +14% synergy
Dreamroot Cascade
18% of 6011 decks +14% synergy
Undergrowth Stadium
18% of 4893 decks +12% synergy
Crumbling Necropolis
18% of 2388 decks +14% synergy
Thundering Falls
18% of 130 decks +14% synergy