Collective Brutality (Card)

Collective Brutality
In 4817 decks 0% of 2811434 decks
Cardsphere
Archidekt
Commander Spellbook
Moxfield
Scryfall
MTGStocks
Hashaton, Scarab's Fist
1.14% of 10655 decks 121 decks
Top Commanders
K'rrik, Son of Yawgmoth
4.59% of 15171 decks 697 decks
Old Stickfingers
6.08% of 2895 decks 176 decks
Edgar Markov
0.50% of 29120 decks 145 decks
Dina, Soul Steeper
1.82% of 7912 decks 144 decks
Tinybones, Bauble Burglar
3.30% of 3064 decks 101 decks
Tinybones, Trinket Thief
1.76% of 5068 decks 89 decks
Jodah, the Unifier
0.44% of 18788 decks 82 decks
Tergrid, God of Fright
0.81% of 9727 decks 79 decks
Sheoldred, the Apocalypse
0.73% of 9632 decks 70 decks
Kroxa, Titan of Death's Hunger
2.85% of 2385 decks 68 decks
Greasefang, Okiba Boss
1.29% of 5118 decks 66 decks
Varolz, the Scar-Striped
4.32% of 1458 decks 63 decks
Megatron, Tyrant
1.39% of 4112 decks 57 decks
Disa the Restless
0.75% of 7431 decks 56 decks
The Gitrog Monster
0.86% of 6519 decks 56 decks
The Beamtown Bullies
1.05% of 5233 decks 55 decks
Prosper, Tome-Bound
0.35% of 13136 decks 46 decks
New Cards
Temmet, Naktamun's Will
22% of 239 decks +19% synergy
Rhet-Tomb Mystic
21% of 427 decks +19% synergy
Renewed Solidarity
14% of 537 decks +11% synergy
Bleachbone Verge
12% of 548 decks +5% synergy
Prophet of the Scarab
11% of 427 decks +9% synergy
High Synergy Cards
Ultra Magnus, Tactician
82% of 283 decks +82% synergy
Optimus Prime, Hero
81% of 303 decks +80% synergy
Blaster, Combat DJ
47% of 500 decks +46% synergy
Goldbug, Humanity's Ally
43% of 577 decks +42% synergy
Soundwave, Sonic Spy
43% of 577 decks +42% synergy
Megatron, Tyrant
41% of 603 decks +41% synergy
Arcee, Sharpshooter
41% of 603 decks +41% synergy
Abrupt Decay
47% of 1315 decks +37% synergy
Dark Ritual
52% of 4817 decks +30% synergy
Autumn's Veil
31% of 1315 decks +29% synergy
Top Cards
Swords to Plowshares
54% of 1243 decks -8% synergy
Assassin's Trophy
50% of 1315 decks +20% synergy
Reanimate
42% of 4817 decks +26% synergy
Counterspell
39% of 1141 decks -4% synergy
Faithless Looting
38% of 1401 decks +22% synergy
Culling Ritual
36% of 1315 decks +24% synergy
Animate Dead
35% of 4817 decks +26% synergy
Birds of Paradise
34% of 1315 decks +7% synergy
Path to Exile
34% of 1243 decks -13% synergy
Deathrite Shaman
33% of 1315 decks +21% synergy
Game Changers
Demonic Tutor
38% of 4817 decks +17% synergy
Vampiric Tutor
31% of 4817 decks +14% synergy
Opposition Agent
22% of 4817 decks +16% synergy
Bolas's Citadel
22% of 4817 decks +13% synergy
Ancient Tomb
21% of 4817 decks +11% synergy
Mana Vault
21% of 4817 decks +14% synergy
Chrome Mox
20% of 4817 decks +14% synergy
Imperial Seal
18% of 4817 decks +13% synergy
Mox Diamond
14% of 4817 decks +9% synergy
Grim Monolith
11% of 4817 decks +9% synergy
Creatures
Llanowar Elves
33% of 1315 decks +12% synergy
Ignoble Hierarch
32% of 500 decks +6% synergy
Elves of Deep Shadow
31% of 1315 decks +20% synergy
Elvish Mystic
29% of 1315 decks +11% synergy
Fyndhorn Elves
26% of 1315 decks +14% synergy
Dauthi Voidwalker
25% of 4817 decks +18% synergy
Gray Merchant of Asphodel
24% of 4817 decks +15% synergy
Cyclonus, the Saboteur
23% of 1141 decks +23% synergy
Jetfire, Ingenious Scientist
22% of 1141 decks +22% synergy
Prowl, Stoic Strategist
22% of 1243 decks +22% synergy
Ratchet, Field Medic
22% of 1243 decks +22% synergy
Flamewar, Brash Veteran
21% of 1401 decks +21% synergy
Slicer, Hired Muscle
21% of 1401 decks +20% synergy
Eternal Witness
21% of 1315 decks +1% synergy
Jhoira, Weatherlight Captain
19% of 489 decks +14% synergy
Skirge Familiar
19% of 4817 decks +18% synergy
Vilis, Broker of Blood
18% of 4817 decks +15% synergy
Sylvan Safekeeper
18% of 1315 decks +15% synergy
Protean Hulk
18% of 1315 decks +16% synergy
Orcish Bowmasters
18% of 4480 decks +9% synergy
Sheoldred, the Apocalypse
17% of 4817 decks +12% synergy
Esper Sentinel
17% of 1243 decks -3% synergy
Necrotic Ooze
17% of 4817 decks +16% synergy
Vile Entomber
16% of 4817 decks +14% synergy
Urza, Chief Artificer
16% of 577 decks +15% synergy
Arbor Elf
16% of 1315 decks +10% synergy
Asmodeus the Archfiend
15% of 4817 decks +15% synergy
Witherbloom Apprentice
15% of 1315 decks +13% synergy
Blood Pet
15% of 4817 decks +14% synergy
Blood Artist
14% of 4817 decks +3% synergy
Chainer, Dementia Master
14% of 4817 decks +13% synergy
Elvish Spirit Guide
14% of 1315 decks +10% synergy
Blood Celebrant
13% of 4817 decks +13% synergy
Hoarding Broodlord
13% of 4788 decks +11% synergy
Baleful Strix
13% of 1141 decks +0% synergy
Alibou, Ancient Witness
13% of 603 decks +10% synergy
Dimir House Guard
13% of 4817 decks +12% synergy
Psychic Frog
12% of 813 decks +10% synergy
Jodah, the Unifier
12% of 283 decks +8% synergy
Sisay, Weatherlight Captain
12% of 283 decks +6% synergy
Esika, God of the Tree
12% of 283 decks +5% synergy
Fauna Shaman
12% of 1315 decks +10% synergy
Delighted Halfling
12% of 1236 decks +0% synergy
Fleshwrither
12% of 4817 decks +11% synergy
Dragon's Rage Channeler
11% of 1401 decks +10% synergy
Viscera Seer
11% of 4817 decks +2% synergy
Balthor the Defiled
11% of 4817 decks +11% synergy
Destiny Spinner
11% of 1315 decks +6% synergy
Sakura-Tribe Elder
11% of 1315 decks -7% synergy
Anger
11% of 1401 decks +5% synergy
Instants
Entomb
32% of 4817 decks +24% synergy
Veil of Summer
31% of 1315 decks +26% synergy
Nature's Claim
31% of 1315 decks +22% synergy
Cabal Ritual
27% of 4817 decks +22% synergy
Noxious Revival
24% of 1315 decks +19% synergy
Dramatic Reversal
24% of 1141 decks +19% synergy
Crop Rotation
24% of 1315 decks +14% synergy
Frantic Search
24% of 1141 decks +11% synergy
Abrade
23% of 1401 decks +12% synergy
Lightning Bolt
23% of 1401 decks +13% synergy
Terminate
23% of 1401 decks +3% synergy
Worldly Tutor
22% of 1315 decks +8% synergy
Culling the Weak
22% of 4817 decks +18% synergy
Brainstorm
21% of 1141 decks +1% synergy
Dismember
21% of 4817 decks +18% synergy
Imp's Mischief
20% of 4817 decks +17% synergy
Beast Within
18% of 1315 decks -19% synergy
Deadly Rollick
18% of 4817 decks +7% synergy
Kolaghan's Command
18% of 1401 decks +15% synergy
Negate
17% of 1141 decks -5% synergy
Enlightened Tutor
17% of 1243 decks -0% synergy
Cut Down
17% of 4817 decks +16% synergy
Thrill of Possibility
16% of 1401 decks +6% synergy
Chaos Warp
16% of 1401 decks -15% synergy
Cyclonic Rift
16% of 1141 decks -11% synergy
Boros Charm
16% of 603 decks -9% synergy
Bitter Triumph
16% of 3768 decks +13% synergy
Infernal Grasp
15% of 4817 decks +8% synergy
Anguished Unmaking
14% of 1243 decks -10% synergy
An Offer You Can't Refuse
14% of 1141 decks -7% synergy
Sacrifice
13% of 4817 decks +12% synergy
Void Rend
13% of 577 decks -1% synergy
Force of Vigor
12% of 1315 decks +9% synergy
Force of Will
12% of 1141 decks +1% synergy
Saw in Half
12% of 4817 decks +9% synergy
Rakdos Charm
12% of 1401 decks -3% synergy
Rain of Filth
12% of 4817 decks +11% synergy
Mystical Tutor
12% of 1141 decks -3% synergy
Mana Drain
12% of 1141 decks -3% synergy
Fatal Push
12% of 4817 decks +11% synergy
Despark
12% of 1243 decks -4% synergy
Peer Past the Veil
11% of 227 decks +11% synergy
Go for the Throat
11% of 4817 decks +4% synergy
Drown in the Loch
11% of 1141 decks +6% synergy
Grisly Salvage
11% of 1315 decks +6% synergy
Dovin's Veto
11% of 577 decks -7% synergy
Shallow Grave
11% of 4817 decks +11% synergy
Arcane Denial
11% of 1141 decks -9% synergy
Putrefy
11% of 1315 decks -5% synergy
Heroic Intervention
11% of 1315 decks -19% synergy
Sorceries
Life // Death
30% of 1315 decks +29% synergy
Buried Alive
29% of 4817 decks +24% synergy
Toxic Deluge
27% of 4817 decks +9% synergy
Thoughtseize
26% of 4817 decks +25% synergy
Fabricate
25% of 1141 decks +19% synergy
Duress
25% of 4817 decks +24% synergy
Cultivate
22% of 1315 decks -23% synergy
Unmarked Grave
21% of 4817 decks +19% synergy
Farseek
21% of 1315 decks -13% synergy
Grim Tutor
21% of 4817 decks +17% synergy
By Force
21% of 1401 decks +20% synergy
Feed the Swarm
20% of 4817 decks +3% synergy
Peer into the Abyss
20% of 4817 decks +17% synergy
Damn
20% of 1243 decks +4% synergy
Nature's Lore
20% of 1315 decks -12% synergy
Wake the Past
20% of 603 decks +17% synergy
Final Parting
19% of 4817 decks +18% synergy
Rampant Growth
18% of 1315 decks -16% synergy
Diabolic Tutor
18% of 4817 decks +12% synergy
Sign in Blood
18% of 4817 decks +8% synergy
Praetor's Grasp
17% of 4817 decks +15% synergy
Inquisition of Kozilek
17% of 4817 decks +16% synergy
Ponder
17% of 1141 decks +4% synergy
Windfall
16% of 1141 decks +3% synergy
Diabolic Intent
16% of 4817 decks +7% synergy
Blasphemous Act
15% of 1401 decks -18% synergy
Beseech the Queen
15% of 4817 decks +14% synergy
Chain of Smog
15% of 4817 decks +14% synergy
Dark Petition
15% of 4817 decks +14% synergy
Three Visits
14% of 1315 decks -10% synergy
Gamble
14% of 1401 decks +4% synergy
Natural Order
13% of 1315 decks +11% synergy
Night's Whisper
13% of 4817 decks +4% synergy
Preordain
13% of 1141 decks +2% synergy
Persist
13% of 4817 decks +10% synergy
Kodama's Reach
12% of 1315 decks -19% synergy
Beseech the Mirror
12% of 4116 decks +8% synergy
Bone Shards
12% of 4817 decks +10% synergy
Careful Study
11% of 1141 decks +10% synergy
Gitaxian Probe
11% of 1141 decks +6% synergy
Victimize
11% of 4817 decks -1% synergy
Exsanguinate
10% of 4817 decks +4% synergy
Ruinous Ultimatum
10% of 603 decks -8% synergy
Eldritch Evolution
10% of 1315 decks +5% synergy
Damnation
10% of 4817 decks +3% synergy
Cathartic Reunion
10% of 1401 decks +6% synergy
Organic Extinction
10% of 1243 decks +7% synergy
Maelstrom Pulse
9% of 1315 decks +7% synergy
Mastermind's Acquisition
9% of 4817 decks +9% synergy
Green Sun's Zenith
9% of 1315 decks +3% synergy
Utility Artifacts
Jet Medallion
26% of 4817 decks +23% synergy
Lotus Petal
24% of 4817 decks +18% synergy
Wishclaw Talisman
24% of 4817 decks +18% synergy
Mind Stone
17% of 4817 decks -0% synergy
Lightning Greaves
16% of 4817 decks -9% synergy
Swiftfoot Boots
15% of 4817 decks -13% synergy
Jeweled Lotus
14% of 4817 decks +10% synergy
Sensei's Divining Top
13% of 4817 decks +8% synergy
Door to Nothingness
13% of 283 decks +9% synergy
Aetherflux Reservoir
13% of 4817 decks +9% synergy
Commander's Sphere
12% of 4817 decks -2% synergy
Defense Grid
11% of 4817 decks +10% synergy
The One Ring
11% of 4817 decks +3% synergy
Shorikai, Genesis Engine
9% of 577 decks +6% synergy
Monument to Endurance
8% of 1420 decks +7% synergy
Fist of Suns
8% of 283 decks +1% synergy
Lion's Eye Diamond
8% of 4817 decks +6% synergy
Skullclamp
7% of 4817 decks -5% synergy
Hedge Shredder
6% of 549 decks +3% synergy
Wayfarer's Bauble
6% of 4817 decks -3% synergy
Parhelion II
6% of 1243 decks +5% synergy
Doubling Cube
6% of 4817 decks +5% synergy
Bontu's Monument
6% of 4817 decks +4% synergy
Geth's Grimoire
5% of 4817 decks +5% synergy
Expedition Map
5% of 4817 decks +2% synergy
Enchantments
Wild Growth
30% of 1315 decks +19% synergy
Sylvan Library
28% of 1315 decks +17% synergy
Necromancy
24% of 4817 decks +20% synergy
True Conviction
23% of 1243 decks +21% synergy
Greater Good
21% of 1315 decks +16% synergy
Necropotence
21% of 4817 decks +16% synergy
Carpet of Flowers
21% of 1315 decks +17% synergy
Dance of the Dead
20% of 4817 decks +18% synergy
Utopia Sprawl
19% of 1315 decks +11% synergy
Rhystic Study
17% of 1141 decks -10% synergy
Phyrexian Arena
16% of 4817 decks +1% synergy
Pattern of Rebirth
16% of 1315 decks +15% synergy
Smothering Tithe
14% of 1243 decks -10% synergy
Heartless Summoning
13% of 4817 decks +12% synergy
Leyline of the Guildpact
12% of 198 decks -4% synergy
Mystic Remora
11% of 1141 decks -6% synergy
Annie Joins Up
11% of 173 decks -2% synergy
On Wings of Gold
10% of 537 decks +8% synergy
Survival of the Fittest
10% of 1315 decks +8% synergy
Waste Not
10% of 4817 decks +8% synergy
Underworld Breach
9% of 1401 decks +3% synergy
Exquisite Blood
9% of 4817 decks +3% synergy
Propaganda
8% of 1141 decks -4% synergy
The Meathook Massacre
8% of 4817 decks +3% synergy
Tarmogoyf Nest
8% of 710 decks +7% synergy
Fable of the Mirror-Breaker
8% of 1401 decks +6% synergy
Cathars' Crusade
8% of 1243 decks +2% synergy
Blind Obedience
8% of 1243 decks +1% synergy
Authority of the Consuls
7% of 1243 decks +3% synergy
Painful Quandary
7% of 4817 decks +5% synergy
Sanguine Bond
7% of 4817 decks +2% synergy
Black Market Connections
7% of 4817 decks -4% synergy
Stensia Masquerade
7% of 1401 decks +6% synergy
Mirari's Wake
7% of 340 decks -6% synergy
Bandit's Talent
6% of 2537 decks +5% synergy
Rooftop Storm
6% of 1141 decks +4% synergy
Storm the Vault
6% of 489 decks +3% synergy
Exploration
6% of 1315 decks -2% synergy
Squandered Resources
6% of 1315 decks +5% synergy
Oppression
6% of 4817 decks +5% synergy
Ripples of Undeath
6% of 2782 decks +1% synergy
Rhythm of the Wild
5% of 500 decks -18% synergy
Thopter Spy Network
5% of 1141 decks +2% synergy
Tempered Steel
5% of 1243 decks +4% synergy
Intangible Virtue
5% of 1243 decks +0% synergy
Planeswalkers
Grist, the Hunger Tide
14% of 1315 decks +10% synergy
Liliana of the Veil
12% of 4817 decks +11% synergy
Wrenn and Six
12% of 500 decks +11% synergy
Professor Onyx
12% of 4817 decks +11% synergy
Minsc & Boo, Timeless Heroes
6% of 500 decks +4% synergy
Narset, Parter of Veils
5% of 1141 decks +1% synergy
Tezzeret, Master of the Bridge
5% of 1141 decks +3% synergy
Utility Lands
Urborg, Tomb of Yawgmoth
31% of 4817 decks +21% synergy
Boseiju, Who Endures
29% of 1315 decks +10% synergy
Bojuka Bog
22% of 4817 decks -8% synergy
Phyrexian Tower
19% of 4817 decks +10% synergy
Urza's Saga
18% of 4817 decks +11% synergy
Dryad Arbor
17% of 1315 decks +13% synergy
Cabal Coffers
17% of 4817 decks +6% synergy
Emergence Zone
15% of 4817 decks +13% synergy
Takenuma, Abandoned Mire
15% of 4817 decks +5% synergy
Nykthos, Shrine to Nyx
15% of 4817 decks +10% synergy
Otawara, Soaring City
14% of 1141 decks -2% synergy
Reliquary Tower
14% of 4817 decks -16% synergy
Crystal Vein
13% of 4817 decks +12% synergy
Geier Reach Sanitarium
13% of 4817 decks +10% synergy
Shifting Woodland
11% of 727 decks +5% synergy
Eiganjo, Seat of the Empire
10% of 1243 decks +2% synergy
Ancient Den
10% of 1243 decks +5% synergy
Lake of the Dead
10% of 4817 decks +9% synergy
Castle Locthwain
9% of 4817 decks +4% synergy
Rogue's Passage
9% of 4817 decks -11% synergy
Raging Ravine
9% of 500 decks +7% synergy
Homeward Path
8% of 4817 decks +7% synergy
Cephalid Coliseum
8% of 1141 decks +5% synergy
Mystic Sanctuary
8% of 1141 decks -3% synergy
Great Furnace
8% of 1401 decks +3% synergy
City of Traitors
8% of 4817 decks +7% synergy
Vault of the Archangel
8% of 1243 decks -3% synergy
Cabal Stronghold
8% of 4817 decks +5% synergy
Kessig Wolf Run
8% of 500 decks -8% synergy
Barren Moor
7% of 4817 decks +3% synergy
Seat of the Synod
7% of 1141 decks +1% synergy
Gaea's Cradle
7% of 1315 decks +1% synergy
Forgotten Cave
6% of 1401 decks +2% synergy
Command Beacon
6% of 4817 decks +2% synergy
Sokenzan, Crucible of Defiance
6% of 1401 decks +2% synergy
Shizo, Death's Storehouse
6% of 4817 decks +1% synergy
Academy Ruins
6% of 1141 decks +1% synergy
Tranquil Thicket
6% of 1315 decks +2% synergy
Temple of the False God
6% of 4817 decks -4% synergy
Vault of Whispers
6% of 4817 decks +1% synergy
Tree of Tales
5% of 1315 decks +3% synergy
War Room
5% of 4817 decks -1% synergy
Witch's Cottage
5% of 4817 decks +2% synergy
Accursed Duneyard
5% of 1474 decks +4% synergy
Cabal Pit
5% of 4817 decks +4% synergy
Mana Artifacts
Sol Ring
80% of 4817 decks -4% synergy
Arcane Signet
61% of 4817 decks -11% synergy
Talisman of Resilience
27% of 1315 decks +15% synergy
Talisman of Dominance
27% of 1141 decks -6% synergy
Dimir Signet
26% of 1141 decks -3% synergy
Orzhov Signet
25% of 1243 decks -2% synergy
Talisman of Hierarchy
25% of 1243 decks -1% synergy
Rakdos Signet
23% of 1401 decks -6% synergy
Talisman of Indulgence
22% of 1401 decks -5% synergy
Fellwar Stone
22% of 4817 decks +1% synergy
Golgari Signet
22% of 1315 decks +9% synergy
Mana Crypt
17% of 4817 decks +10% synergy
Mox Amber
15% of 4817 decks +11% synergy
Timeless Lotus
14% of 283 decks +2% synergy
Talisman of Creativity
14% of 489 decks -14% synergy
Talisman of Progress
14% of 577 decks -10% synergy
Azorius Signet
12% of 577 decks -13% synergy
Izzet Signet
12% of 489 decks -15% synergy
Boros Signet
11% of 603 decks -12% synergy
Talisman of Conviction
11% of 603 decks -12% synergy
Thought Vessel
11% of 4817 decks -6% synergy
Talisman of Impulse
8% of 500 decks -1% synergy
Mox Opal
8% of 4817 decks +3% synergy
Charcoal Diamond
7% of 4817 decks +2% synergy
Chromatic Lantern
7% of 4817 decks -3% synergy
Relic of Sauron
6% of 444 decks -3% synergy
Lands
Command Tower
56% of 4817 decks -18% synergy
Overgrown Tomb
54% of 1315 decks +12% synergy
Llanowar Wastes
47% of 1315 decks +21% synergy
Blood Crypt
41% of 1401 decks +3% synergy
Watery Grave
38% of 1141 decks -2% synergy
Godless Shrine
38% of 1243 decks -2% synergy
Stomping Ground
36% of 500 decks -4% synergy
Caves of Koilos
36% of 1243 decks +7% synergy
Ziatora's Proving Ground
35% of 500 decks +5% synergy
Dragonskull Summit
34% of 1401 decks +2% synergy
Woodland Cemetery
34% of 1315 decks +5% synergy
Undergrowth Stadium
33% of 1315 decks +7% synergy
Sunken Hollow
33% of 1141 decks -2% synergy
Steam Vents
32% of 489 decks -6% synergy
Isolated Chapel
32% of 1243 decks +3% synergy
Hallowed Fountain
32% of 577 decks -8% synergy
Arcane Sanctum
32% of 577 decks +3% synergy
Drowned Catacomb
31% of 1141 decks +4% synergy
Nurturing Peatland
30% of 1315 decks +24% synergy
Breeding Pool
30% of 395 decks -11% synergy
Smoldering Marsh
29% of 1401 decks -4% synergy
Sulfurous Springs
28% of 1401 decks +7% synergy
Xander's Lounge
27% of 489 decks +1% synergy
Raffine's Tower
27% of 577 decks +1% synergy
Temple Garden
27% of 340 decks -13% synergy
Underground River
26% of 1141 decks +6% synergy
Crumbling Necropolis
26% of 489 decks -5% synergy
Nomad Outpost
25% of 603 decks -3% synergy
Prairie Stream
25% of 577 decks -9% synergy
Zagoth Triome
24% of 395 decks -6% synergy
Exotic Orchard
23% of 4817 decks -12% synergy
Twilight Mire
23% of 1315 decks +12% synergy
Bayou
23% of 1315 decks +9% synergy
Sacred Foundry
23% of 603 decks -13% synergy
Blooming Marsh
22% of 1315 decks +18% synergy
Verdant Catacombs
22% of 4817 decks +11% synergy
Marsh Flats
21% of 4817 decks +10% synergy
Indatha Triome
21% of 340 decks -9% synergy
Glacial Fortress
21% of 577 decks -6% synergy
Temple of Silence
21% of 1243 decks +3% synergy
Bloodstained Mire
21% of 4817 decks +10% synergy
Savai Triome
21% of 603 decks -6% synergy
Mystic Monastery
20% of 303 decks -7% synergy
Savage Lands
20% of 500 decks -3% synergy
Luxury Suite
20% of 1401 decks -6% synergy
The World Tree
20% of 283 decks -12% synergy
Shipwreck Marsh
20% of 1141 decks +1% synergy
Jetmir's Garden
19% of 283 decks -12% synergy
Polluted Delta
19% of 4817 decks +8% synergy
Haunted Ridge
19% of 1401 decks +3% synergy