Baldin, Century Herdmaster (Commander) - Aggro

Alternate Names:

E. Honda, Sumo ChampionE. Honda, Sumo Champion

Background image for The Joys of High Mana Value Commanders
Bennie Smith
Sep 1, 2025
The Joys of High Mana Value Commanders
In this era of cheaper, more efficient and powerful new commanders, take a step back and appreciate the joys of higher mana value commanders!
Deck Filters
Cardsphere
Archidekt
Commander Spellbook
Moxfield
Scryfall
MTGStocks
Zetalpa, Primal Dawn
83%inclusion10 decks12 decks
81%synergy
Welcoming Vampire
83%inclusion10 decks12 decks
67%synergy
Crashing Drawbridge
67%inclusion8 decks12 decks
65%synergy
Essence of Antiquity
58%inclusion7 decks12 decks
58%synergy
Oathsworn Giant
58%inclusion7 decks12 decks
58%synergy
Castle Ardenvale
75%inclusion9 decks12 decks
56%synergy
Daxos, Blessed by the Sun
67%inclusion8 decks12 decks
55%synergy
Prava of the Steel Legion
58%inclusion7 decks12 decks
53%synergy
Dusk // Dawn
58%inclusion7 decks12 decks
52%synergy
Your Temple Is Under Attack
58%inclusion7 decks12 decks
51%synergy
Top Cards
Swords to Plowshares
83%inclusion10 decks12 decks
7%synergy
Pearl Medallion
75%inclusion9 decks12 decks
17%synergy
Oketra's Monument
67%inclusion8 decks12 decks
38%synergy
Path to Exile
67%inclusion8 decks12 decks
-1%synergy
Cut a Deal
58%inclusion7 decks12 decks
44%synergy
Swiftfoot Boots
58%inclusion7 decks12 decks
22%synergy
Mangara, the Diplomat
58%inclusion7 decks12 decks
40%synergy
Generous Gift
58%inclusion7 decks12 decks
14%synergy
Rasaad yn Bashir
50%inclusion6 decks12 decks
49%synergy
Enduring Innocence
50%inclusion5 decks10 decks
37%synergy
Game Changers
Smothering Tithe
42%inclusion5 decks12 decks
10%synergy
Teferi's Protection
17%inclusion2 decks12 decks
-11%synergy
Ancient Tomb
8.3%inclusion1 decks12 decks
-2%synergy
The One Ring
8.3%inclusion1 decks12 decks
-2%synergy
Enlightened Tutor
8.3%inclusion1 decks12 decks
-15%synergy
Creatures
Keeper of the Accord
50%inclusion6 decks12 decks
33%synergy
Nyx-Fleece Ram
50%inclusion6 decks12 decks
49%synergy
Reverent Hoplite
50%inclusion6 decks12 decks
42%synergy
Mentor of the Meek
50%inclusion6 decks12 decks
29%synergy
Indomitable Ancients
42%inclusion5 decks12 decks
41%synergy
Adeline, Resplendent Cathar
42%inclusion5 decks12 decks
32%synergy
Knight of the White Orchid
42%inclusion5 decks12 decks
14%synergy
Hundred-Handed One
42%inclusion5 decks12 decks
41%synergy
Solemn Simulacrum
33%inclusion4 decks12 decks
12%synergy
God-Eternal Oketra
33%inclusion4 decks12 decks
30%synergy
Defiler of Faith
33%inclusion4 decks12 decks
23%synergy
Sun Titan
33%inclusion4 decks12 decks
10%synergy
Loran of the Third Path
33%inclusion4 decks12 decks
11%synergy
Giant Ox
33%inclusion4 decks12 decks
33%synergy
Armored Armadillo
33%inclusion4 decks12 decks
33%synergy
Harnessed Snubhorn
33%inclusion4 decks12 decks
33%synergy
Vexilus Praetor
33%inclusion4 decks12 decks
32%synergy
Crystal Barricade
30%inclusion3 decks10 decks
27%synergy
Witch Enchanter
25%inclusion3 decks12 decks
8%synergy
Weathered Sentinels
25%inclusion3 decks12 decks
25%synergy
Weathered Wayfarer
25%inclusion3 decks12 decks
11%synergy
Bennie Bracks, Zoologist
25%inclusion3 decks12 decks
20%synergy
Delney, Streetwise Lookout
25%inclusion3 decks12 decks
21%synergy
Springjack Shepherd
25%inclusion3 decks12 decks
24%synergy
Kami of Old Stone
25%inclusion3 decks12 decks
25%synergy
Dauntless Dismantler
25%inclusion3 decks12 decks
22%synergy
Looming Altisaur
25%inclusion3 decks12 decks
25%synergy
Flumph
25%inclusion3 decks12 decks
23%synergy
Archangel of Tithes
25%inclusion3 decks12 decks
12%synergy
Voice of Victory
20%inclusion2 decks10 decks
13%synergy
Dalkovan Packbeasts
20%inclusion2 decks10 decks
20%synergy
Shrike Force
20%inclusion2 decks10 decks
18%synergy
The Wandering Rescuer
18%inclusion2 decks11 decks
17%synergy
Wall of Reverence
17%inclusion2 decks12 decks
15%synergy
Claim Jumper
17%inclusion2 decks12 decks
7%synergy
Yoked Ox
17%inclusion2 decks12 decks
16%synergy
Alms Collector
17%inclusion2 decks12 decks
13%synergy
Luminous Broodmoth
17%inclusion2 decks12 decks
15%synergy
Platoon Dispenser
17%inclusion2 decks12 decks
15%synergy
Serra Redeemer
17%inclusion2 decks12 decks
14%synergy
Rumor Gatherer
17%inclusion2 decks12 decks
4%synergy
Charismatic Conqueror
17%inclusion2 decks12 decks
12%synergy
Ancient Gold Dragon
17%inclusion2 decks12 decks
15%synergy
Hero of Bladehold
17%inclusion2 decks12 decks
13%synergy
Ojer Taq, Deepest Foundation
17%inclusion2 decks12 decks
9%synergy
Brimaz, King of Oreskos
17%inclusion2 decks12 decks
13%synergy
Evangel of Heliod
17%inclusion2 decks12 decks
13%synergy
White Plume Adventurer
17%inclusion2 decks12 decks
14%synergy
Wall of Omens
17%inclusion2 decks12 decks
7%synergy
Oketra the True
17%inclusion2 decks12 decks
15%synergy
Instants
Bar the Door
42%inclusion5 decks12 decks
41%synergy
Solidarity
42%inclusion5 decks12 decks
41%synergy
Brave the Elements
33%inclusion4 decks12 decks
21%synergy
Secure the Wastes
33%inclusion4 decks12 decks
30%synergy
Akroma's Will
33%inclusion4 decks12 decks
10%synergy
Battle Menu
25%inclusion2 decks8 decks
23%synergy
Stroke of Midnight
25%inclusion3 decks12 decks
-1%synergy
Disenchant
25%inclusion3 decks12 decks
8%synergy
Refuse to Yield
25%inclusion3 decks12 decks
24%synergy
Reprieve
25%inclusion3 decks12 decks
3%synergy
Dawn's Truce
20%inclusion2 decks10 decks
6%synergy
Kabira Takedown
17%inclusion2 decks12 decks
11%synergy
Flawless Maneuver
17%inclusion2 decks12 decks
-8%synergy
Flare of Fortitude
17%inclusion2 decks12 decks
-3%synergy
Scars of the Veteran
17%inclusion2 decks12 decks
17%synergy
Emergency Eject
17%inclusion1 decks6 decks
15%synergy
Reroute Systems
17%inclusion1 decks6 decks
16%synergy
Great Defender
17%inclusion2 decks12 decks
17%synergy
Aegis of the Heavens
17%inclusion2 decks12 decks
16%synergy
Jump Scare
10%inclusion1 decks10 decks
10%synergy
Unwanted Remake
10%inclusion1 decks10 decks
8%synergy
Repel Calamity
10%inclusion1 decks10 decks
10%synergy
Rootborn Defenses
8.3%inclusion1 decks12 decks
4%synergy
Fight as One
8.3%inclusion1 decks12 decks
8%synergy
Hold the Line
8.3%inclusion1 decks12 decks
8%synergy
Entrapment Maneuver
8.3%inclusion1 decks12 decks
7%synergy
Settle the Wreckage
8.3%inclusion1 decks12 decks
5%synergy
Return to Dust
8.3%inclusion1 decks12 decks
-1%synergy
Fateful Absence
8.3%inclusion1 decks12 decks
6%synergy
Condemn
8.3%inclusion1 decks12 decks
5%synergy
Get Lost
8.3%inclusion1 decks12 decks
1%synergy
Blacksmith's Skill
8.3%inclusion1 decks12 decks
2%synergy
Call the Coppercoats
8.3%inclusion1 decks12 decks
3%synergy
Wing It
8.3%inclusion1 decks12 decks
8%synergy
Thraben Charm
8.3%inclusion1 decks12 decks
5%synergy
Unbreakable Formation
8.3%inclusion1 decks12 decks
-5%synergy
Rally to Battle
8.3%inclusion1 decks12 decks
8%synergy
Charge Across the Araba
8.3%inclusion1 decks12 decks
8%synergy
Sejiri Shelter
8.3%inclusion1 decks12 decks
-3%synergy
Plow Through Reito
8.3%inclusion1 decks12 decks
8%synergy
Heliod's Intervention
8.3%inclusion1 decks12 decks
-2%synergy
Crush Contraband
8.3%inclusion1 decks12 decks
6%synergy
March of Otherworldly Light
8.3%inclusion1 decks12 decks
6%synergy
Rebuff the Wicked
8.3%inclusion1 decks12 decks
-9%synergy
Sorceries
Secret Rendezvous
33%inclusion4 decks12 decks
20%synergy
Farewell
33%inclusion4 decks12 decks
9%synergy
Slaughter the Strong
25%inclusion3 decks12 decks
24%synergy
Increasing Devotion
25%inclusion3 decks12 decks
22%synergy
Reunion of the House
22%inclusion2 decks9 decks
22%synergy
Tempt with Bunnies
20%inclusion2 decks10 decks
18%synergy
Austere Command
17%inclusion2 decks12 decks
-13%synergy
Ondu Inversion
17%inclusion2 decks12 decks
11%synergy
Gift of Estates
17%inclusion2 decks12 decks
10%synergy
Fell the Mighty
17%inclusion2 decks12 decks
14%synergy
Retribution of the Meek
17%inclusion2 decks12 decks
16%synergy
The Battle of Bywater
17%inclusion2 decks12 decks
13%synergy
Lay Down Arms
17%inclusion2 decks12 decks
12%synergy
Fragmentize
17%inclusion2 decks12 decks
16%synergy
Split Up
10%inclusion1 decks10 decks
6%synergy
Exorcise
10%inclusion1 decks10 decks
9%synergy
Bond of Discipline
8.3%inclusion1 decks12 decks
7%synergy
No Witnesses
8.3%inclusion1 decks12 decks
8%synergy
Sevinne's Reclamation
8.3%inclusion1 decks12 decks
-5%synergy
Wave of Reckoning
8.3%inclusion1 decks12 decks
6%synergy
Martial Coup
8.3%inclusion1 decks12 decks
1%synergy
Storm Herd
8.3%inclusion1 decks12 decks
5%synergy
Ascend from Avernus
8.3%inclusion1 decks12 decks
2%synergy
Winds of Abandon
8.3%inclusion1 decks12 decks
2%synergy
Idyllic Tutor
8.3%inclusion1 decks12 decks
0%synergy
Emeria's Call
8.3%inclusion1 decks12 decks
2%synergy
Finale of Glory
8.3%inclusion1 decks12 decks
4%synergy
Expel the Interlopers
8.3%inclusion1 decks12 decks
6%synergy
Urza's Ruinous Blast
8.3%inclusion1 decks12 decks
6%synergy
White Sun's Twilight
8.3%inclusion1 decks12 decks
3%synergy
Fumigate
8.3%inclusion1 decks12 decks
1%synergy
Path of the Ghosthunter
8.3%inclusion1 decks12 decks
8%synergy
Dawn to Dusk
8.3%inclusion1 decks12 decks
8%synergy
Day of Judgment
8.3%inclusion1 decks12 decks
3%synergy
Angelic Blessing
8.3%inclusion1 decks12 decks
8%synergy
Recruitment Drive
8.3%inclusion1 decks12 decks
8%synergy
Visions of Glory
8.3%inclusion1 decks12 decks
7%synergy
Utility Artifacts
Archaeomancer's Map
50%inclusion6 decks12 decks
26%synergy
Slagwurm Armor
42%inclusion5 decks12 decks
41%synergy
Halo Fountain
33%inclusion4 decks12 decks
26%synergy
Robe of Stars
33%inclusion4 decks12 decks
29%synergy
Lightning Greaves
33%inclusion4 decks12 decks
5%synergy
Wayfarer's Bauble
25%inclusion3 decks12 decks
13%synergy
The Wind Crystal
22%inclusion2 decks9 decks
2%synergy
Wedding Ring
17%inclusion2 decks12 decks
12%synergy
Mirror Shield
17%inclusion2 decks12 decks
16%synergy
Meekstone
17%inclusion2 decks12 decks
15%synergy
Whispersilk Cloak
17%inclusion2 decks12 decks
13%synergy
Idol of Oblivion
17%inclusion2 decks12 decks
9%synergy
Endless Atlas
17%inclusion2 decks12 decks
9%synergy
Brotherhood Regalia
9.1%inclusion1 decks11 decks
6%synergy
Team Pennant
8.3%inclusion1 decks12 decks
8%synergy
Adventuring Gear
8.3%inclusion1 decks12 decks
8%synergy
The Immortal Sun
8.3%inclusion1 decks12 decks
6%synergy
Rammas Echor, Ancient Shield
8.3%inclusion1 decks12 decks
8%synergy
Mind's Eye
8.3%inclusion1 decks12 decks
6%synergy
Skullclamp
8.3%inclusion1 decks12 decks
-8%synergy
Leather Armor
8.3%inclusion1 decks12 decks
8%synergy
Spellbook
8.3%inclusion1 decks12 decks
8%synergy
Horn of Gondor
8.3%inclusion1 decks12 decks
3%synergy
Conqueror's Galleon
8.3%inclusion1 decks12 decks
8%synergy
Colfenor's Urn
8.3%inclusion1 decks12 decks
8%synergy
The Pandorica
8.3%inclusion1 decks12 decks
8%synergy
Akroma's Memorial
8.3%inclusion1 decks12 decks
5%synergy
Eldrazi Monument
8.3%inclusion1 decks12 decks
6%synergy
Sword of the Paruns
8.3%inclusion1 decks12 decks
8%synergy
Howling Mine
8.3%inclusion1 decks12 decks
7%synergy
Sword of the Animist
8.3%inclusion1 decks12 decks
-11%synergy
Blackblade Reforged
8.3%inclusion1 decks12 decks
1%synergy
Sword of Vengeance
8.3%inclusion1 decks12 decks
3%synergy
Infested Fleshcutter
8.3%inclusion1 decks12 decks
6%synergy
Cloak of the Bat
8.3%inclusion1 decks12 decks
8%synergy
Enchantments
Stoneskin
50%inclusion6 decks12 decks
47%synergy
Brave the Sands
42%inclusion5 decks12 decks
36%synergy
Eland Umbra
33%inclusion4 decks12 decks
32%synergy
Land Tax
33%inclusion4 decks12 decks
2%synergy
Smuggler's Share
25%inclusion3 decks12 decks
16%synergy
Trouble in Pairs
25%inclusion3 decks12 decks
10%synergy
Court of Grace
25%inclusion3 decks12 decks
12%synergy
Crackdown
25%inclusion3 decks12 decks
23%synergy
True Conviction
25%inclusion3 decks12 decks
16%synergy
Smile at Death
20%inclusion2 decks10 decks
18%synergy
Skrelv's Hive
17%inclusion2 decks12 decks
13%synergy
Felidar Retreat
17%inclusion2 decks12 decks
8%synergy
Undercellar Sweep
17%inclusion2 decks12 decks
16%synergy
Anointed Procession
17%inclusion2 decks12 decks
5%synergy
Chivalric Alliance
17%inclusion2 decks12 decks
12%synergy
Monologue Tax
17%inclusion2 decks12 decks
11%synergy
Cathars' Crusade
17%inclusion2 decks12 decks
1%synergy
Ghostly Prison
17%inclusion2 decks12 decks
-3%synergy
Legion's Landing
17%inclusion2 decks12 decks
14%synergy
Twinblade Blessing
10%inclusion1 decks10 decks
6%synergy
Dazzling Theater // Prop Room
10%inclusion1 decks10 decks
6%synergy
Caretaker's Talent
10%inclusion1 decks10 decks
1%synergy
Darksteel Mutation
8.3%inclusion1 decks12 decks
-9%synergy
Rest in Peace
8.3%inclusion1 decks12 decks
5%synergy
Assemble the Players
8.3%inclusion1 decks12 decks
5%synergy
The Birth of Meletis
8.3%inclusion1 decks12 decks
7%synergy
Grasp of Fate
8.3%inclusion1 decks12 decks
2%synergy
Blessed Sanctuary
8.3%inclusion1 decks12 decks
5%synergy
Wedding Announcement
8.3%inclusion1 decks12 decks
6%synergy
Tocasia's Welcome
8.3%inclusion1 decks12 decks
-6%synergy
Builder's Blessing
8.3%inclusion1 decks12 decks
8%synergy
Authority of the Consuls
8.3%inclusion1 decks12 decks
-10%synergy
Starlight Spectacular
8.3%inclusion1 decks12 decks
7%synergy
Blind Obedience
8.3%inclusion1 decks12 decks
-3%synergy
Pacifism
8.3%inclusion1 decks12 decks
6%synergy
Rolling Stones
8.3%inclusion1 decks12 decks
8%synergy
Charitable Levy
8.3%inclusion1 decks12 decks
6%synergy
Angelic Destiny
8.3%inclusion1 decks12 decks
3%synergy
Timely Ward
8.3%inclusion1 decks12 decks
1%synergy
Armored Ascension
8.3%inclusion1 decks12 decks
2%synergy
Paladin Class
8.3%inclusion1 decks12 decks
4%synergy
Court of Ardenvale
8.3%inclusion1 decks12 decks
6%synergy
Fortified Area
8.3%inclusion1 decks12 decks
8%synergy
Due Diligence
8.3%inclusion1 decks12 decks
8%synergy
Dawn of Hope
8.3%inclusion1 decks12 decks
1%synergy
Presence of the Master
8.3%inclusion1 decks12 decks
8%synergy
Dog Umbra
8.3%inclusion1 decks12 decks
6%synergy
Proper Burial
8.3%inclusion1 decks12 decks
8%synergy
Angelic Chorus
8.3%inclusion1 decks12 decks
6%synergy
Tenuous Truce
8.3%inclusion1 decks12 decks
6%synergy
Planeswalkers
Elspeth, Sun's Champion
33%inclusion4 decks12 decks
22%synergy
Teyo, Geometric Tactician
8.3%inclusion1 decks12 decks
7%synergy
Teyo, the Shieldmage
8.3%inclusion1 decks12 decks
8%synergy
Utility Lands
Reliquary Tower
58%inclusion7 decks12 decks
35%synergy
Windbrisk Heights
50%inclusion6 decks12 decks
32%synergy
War Room
50%inclusion6 decks12 decks
13%synergy
Rogue's Passage
50%inclusion6 decks12 decks
24%synergy
Minas Tirith
42%inclusion5 decks12 decks
14%synergy
Access Tunnel
42%inclusion5 decks12 decks
40%synergy
Forbidding Watchtower
33%inclusion4 decks12 decks
32%synergy
Emeria, the Sky Ruin
33%inclusion4 decks12 decks
-5%synergy
Lotus Field
25%inclusion3 decks12 decks
20%synergy
Secluded Steppe
25%inclusion3 decks12 decks
12%synergy
Mistveil Plains
25%inclusion3 decks12 decks
18%synergy
Scavenger Grounds
17%inclusion2 decks12 decks
9%synergy
Adagia, Windswept Bastion
17%inclusion1 decks6 decks
9%synergy
Eiganjo, Seat of the Empire
17%inclusion2 decks12 decks
-6%synergy
Nykthos, Shrine to Nyx
17%inclusion2 decks12 decks
-16%synergy
The Fair Basilica
17%inclusion2 decks12 decks
13%synergy
Terrain Generator
17%inclusion2 decks12 decks
13%synergy
Drifting Meadow
17%inclusion2 decks12 decks
12%synergy
Karoo
17%inclusion2 decks12 decks
9%synergy
Witch's Clinic
8.3%inclusion1 decks12 decks
7%synergy
Cave of the Frost Dragon
8.3%inclusion1 decks12 decks
7%synergy
Desert of the True
8.3%inclusion1 decks12 decks
5%synergy
Arcane Lighthouse
8.3%inclusion1 decks12 decks
7%synergy
Arid Archway
8.3%inclusion1 decks12 decks
5%synergy
Sejiri Steppe
8.3%inclusion1 decks12 decks
7%synergy
Vesuva
8.3%inclusion1 decks12 decks
7%synergy
Command Beacon
8.3%inclusion1 decks12 decks
1%synergy
Tocasia's Dig Site
8.3%inclusion1 decks12 decks
8%synergy
Thespian's Stage
8.3%inclusion1 decks12 decks
6%synergy
Endless Sands
8.3%inclusion1 decks12 decks
8%synergy
Temple of the False God
8.3%inclusion1 decks12 decks
-4%synergy
Guildless Commons
8.3%inclusion1 decks12 decks
4%synergy
Quicksand
8.3%inclusion1 decks12 decks
8%synergy
Field of Ruin
8.3%inclusion1 decks12 decks
5%synergy
Mana Artifacts
Sol Ring
100%inclusion12 decks12 decks
16%synergy
Thought Vessel
58%inclusion7 decks12 decks
42%synergy
Arcane Signet
42%inclusion5 decks12 decks
-17%synergy
Decanter of Endless Water
42%inclusion5 decks12 decks
40%synergy
Mind Stone
33%inclusion4 decks12 decks
4%synergy
Commander's Sphere
17%inclusion2 decks12 decks
7%synergy
Marble Diamond
17%inclusion2 decks12 decks
-4%synergy
Nyx Lotus
17%inclusion2 decks12 decks
8%synergy
Mana Crypt
8.3%inclusion1 decks12 decks
6%synergy
Lotus Petal
8.3%inclusion1 decks12 decks
4%synergy
Lotus Blossom
8.3%inclusion1 decks12 decks
8%synergy
Paradise Plume
8.3%inclusion1 decks12 decks
8%synergy
Gilded Lotus
8.3%inclusion1 decks12 decks
4%synergy
Lands
Plains
100%inclusion12 decks12 decks
7%synergy
Myriad Landscape
50%inclusion6 decks12 decks
20%synergy
Demolition Field
33%inclusion4 decks12 decks
27%synergy
Escape Tunnel
25%inclusion3 decks12 decks
24%synergy
Witch Enchanter
25%inclusion3 decks12 decks
8%synergy
Hidden Grotto
20%inclusion2 decks10 decks
19%synergy
Kabira Takedown
17%inclusion2 decks12 decks
11%synergy
Fabled Passage
17%inclusion2 decks12 decks
14%synergy
Ondu Inversion
17%inclusion2 decks12 decks
11%synergy
Path of Ancestry
17%inclusion2 decks12 decks
0%synergy
Capital City
11%inclusion1 decks9 decks
11%synergy
Night Market
10%inclusion1 decks10 decks
10%synergy
Prismatic Vista
8.3%inclusion1 decks12 decks
6%synergy
Command Tower
8.3%inclusion1 decks12 decks
2%synergy
Terramorphic Expanse
8.3%inclusion1 decks12 decks
5%synergy
Windswept Heath
8.3%inclusion1 decks12 decks
5%synergy
Conduit Pylons
8.3%inclusion1 decks12 decks
8%synergy
Emeria's Call
8.3%inclusion1 decks12 decks
2%synergy
Talon Gates of Madara
8.3%inclusion1 decks12 decks
6%synergy
Plaza of Heroes
8.3%inclusion1 decks12 decks
4%synergy
Evolving Wilds
8.3%inclusion1 decks12 decks
4%synergy
Opal Palace
8.3%inclusion1 decks12 decks
6%synergy
Brokers Hideout
8.3%inclusion1 decks12 decks
7%synergy
Arid Mesa
8.3%inclusion1 decks12 decks
5%synergy
Sejiri Shelter
8.3%inclusion1 decks12 decks
-3%synergy
Marsh Flats
8.3%inclusion1 decks12 decks
5%synergy
Obscura Storefront
8.3%inclusion1 decks12 decks
8%synergy
Crystal Grotto
8.3%inclusion1 decks12 decks
8%synergy
Flooded Strand
8.3%inclusion1 decks12 decks
5%synergy
Flagstones of Trokair
8.3%inclusion1 decks12 decks
2%synergy