Scourge of the Skyclaves + Warlock Class
Scourge of the Skyclaves
Warlock Class
Requires
Scourge of the Skyclaves must be in hand.
Warlock Class must be on the battlefield.
Warlock Class is level three.
Your life total is at least 2.
Mana needed: 
Steps
- Cast Scourge of the Skyclaves with kicker by paying .
- Scourge of the Skyclaves enters the battlefield, causing each player to lose half their life total, rounded up.
- At the beginning of your end step, Warlock Class triggers, causing each opponent to lose life equal to the life they lost this turn.
- Each opponent loses the game due to having zero or less life.
Results
Each opponent loses the game. Near-infinite lifeloss.
Blitzwing, Cruel Tormentor
48.08% of 208 decks
100 decks
Astarion, the Decadent
7.56% of 2513 decks
190 decks
Gorm the Great // Virtus the Veiled
3.38% of 740 decks
25 decks
New Cards (5)
Rush of Dread
58% of 78 decks
+57% synergy
Sorin of House Markov
50% of 12 decks
+49% synergy
Insatiable Avarice
31% of 78 decks
+27% synergy
Rakdos, the Muscle
27% of 15 decks
+26% synergy
Forlorn Flats
23% of 30 decks
+23% synergy
High Synergy Cards (10)
Revival // Revenge
72% of 255 decks
+71% synergy
Wound Reflection
63% of 586 decks
+63% synergy
Debt to the Deathless
62% of 255 decks
+62% synergy
Bloodletter of Aclazotz
62% of 195 decks
+59% synergy
Kambal, Consul of Allocation
57% of 255 decks
+55% synergy
Fraying Omnipotence
51% of 586 decks
+51% synergy
Vizkopa Guildmage
49% of 255 decks
+49% synergy
Gray Merchant of Asphodel
52% of 586 decks
+47% synergy
Indulging Patrician
47% of 255 decks
+46% synergy
Soul Warden
48% of 255 decks
+46% synergy
Top Cards (10)
Swords to Plowshares
62% of 255 decks
+33% synergy
Cultivate
53% of 66 decks
+31% synergy
Exsanguinate
48% of 586 decks
+46% synergy
Elas il-Kor, Sadistic Pilgrim
46% of 196 decks
+44% synergy
Dark Ritual
46% of 586 decks
+35% synergy
Relic of Sauron
46% of 13 decks
+45% synergy
Counterspell
46% of 39 decks
+25% synergy
Vito, Thorn of the Dusk Rose
46% of 586 decks
+43% synergy
Sanguine Bond
46% of 586 decks
+43% synergy
Blood Tribute
44% of 586 decks
+44% synergy
Creatures (50)
Cliffhaven Vampire
44% of 255 decks
+43% synergy
Shard of the Nightbringer
43% of 459 decks
+43% synergy
Suture Priest
43% of 255 decks
+41% synergy
Rhox Faithmender
42% of 255 decks
+41% synergy
Markov Purifier
41% of 253 decks
+40% synergy
Drana's Emissary
40% of 255 decks
+39% synergy
Dire Fleet Ravager
40% of 586 decks
+39% synergy
Crypt Ghast
38% of 586 decks
+35% synergy
Rakdos, Patron of Chaos
38% of 24 decks
+36% synergy
The Gaffer
34% of 112 decks
+32% synergy
Tithe Drinker
34% of 255 decks
+33% synergy
Lord Xander, the Collector
33% of 18 decks
+33% synergy
Kardur, Doomscourge
33% of 81 decks
+32% synergy
Archfiend of Despair
31% of 586 decks
+31% synergy
Felidar Sovereign
31% of 255 decks
+30% synergy
Marauding Blight-Priest
31% of 586 decks
+30% synergy
Creeping Bloodsucker
31% of 395 decks
+29% synergy
Heartless Hidetsugu
31% of 81 decks
+30% synergy
Blood Artist
31% of 586 decks
+24% synergy
Herald of Slaanesh
29% of 62 decks
+29% synergy
Rodolf Duskbringer
28% of 165 decks
+28% synergy
Elenda's Hierophant
28% of 61 decks
+26% synergy
Glissa Sunslayer
28% of 40 decks
+26% synergy
Soul's Attendant
27% of 255 decks
+26% synergy
Bramble Familiar
26% of 19 decks
+25% synergy
Guardian Augmenter
26% of 66 decks
+25% synergy
Solemn Simulacrum
25% of 586 decks
+11% synergy
Gisela, Blade of Goldnight
25% of 12 decks
+24% synergy
Rakdos, Lord of Riots
25% of 81 decks
+24% synergy
Ochran Assassin
24% of 66 decks
+24% synergy
Llanowar Elves
24% of 66 decks
+14% synergy
Lotho, Corrupt Shirriff
23% of 121 decks
+20% synergy
Virtus the Veiled
23% of 586 decks
+22% synergy
Drana and Linvala
23% of 133 decks
+21% synergy
Liesa, Shroud of Dusk
22% of 255 decks
+22% synergy
Orcus, Prince of Undeath
22% of 81 decks
+22% synergy
Faeburrow Elder
22% of 18 decks
+20% synergy
Cruel Celebrant
22% of 255 decks
+20% synergy
Taunting Elf
21% of 66 decks
+21% synergy
Sakura-Tribe Elder
21% of 66 decks
+12% synergy
Birds of Paradise
21% of 66 decks
+9% synergy
Mayhem Devil
21% of 81 decks
+19% synergy
Mahadi, Emporium Master
21% of 77 decks
+19% synergy
Saryth, the Viper's Fang
20% of 64 decks
+19% synergy
Defiant Bloodlord
20% of 586 decks
+20% synergy
Rakdos, the Showstopper
20% of 81 decks
+19% synergy
Master of Cruelties
20% of 81 decks
+19% synergy
Eternal Witness
20% of 66 decks
+9% synergy
Hidetsugu, Devouring Chaos
19% of 78 decks
+19% synergy
Raving Dead
19% of 586 decks
+19% synergy
Instants (50)
Path to Exile
44% of 255 decks
+24% synergy
Anguished Unmaking
41% of 255 decks
+36% synergy
Despark
40% of 255 decks
+36% synergy
Rakdos Charm
40% of 81 decks
+36% synergy
Chaos Warp
40% of 81 decks
+24% synergy
Beast Within
36% of 66 decks
+18% synergy
Beacon of Immortality
36% of 255 decks
+35% synergy
Terminate
35% of 81 decks
+30% synergy
Fracture
34% of 255 decks
+32% synergy
Tamiyo's Safekeeping
33% of 61 decks
+30% synergy
Mortify
33% of 255 decks
+30% synergy
Brainstorm
31% of 39 decks
+20% synergy
Bedevil
28% of 81 decks
+25% synergy
Golgari Charm
27% of 66 decks
+26% synergy
Archdruid's Charm
27% of 11 decks
+23% synergy
Heroic Intervention
27% of 66 decks
+14% synergy
Assassin's Trophy
26% of 66 decks
+19% synergy
Negate
26% of 39 decks
+14% synergy
Putrefy
23% of 66 decks
+19% synergy
Stroke of Midnight
20% of 93 decks
+14% synergy
Infernal Grasp
20% of 578 decks
+16% synergy
Tear Asunder
19% of 54 decks
+17% synergy
Astarion's Thirst
18% of 541 decks
+18% synergy
Inkshield
18% of 255 decks
+17% synergy
Go for the Throat
18% of 586 decks
+14% synergy
Heliod's Intervention
17% of 255 decks
+15% synergy
Teferi's Protection
17% of 255 decks
+8% synergy
Defile
16% of 586 decks
+14% synergy
Consuming Corruption
16% of 19 decks
+14% synergy
Malakir Rebirth
16% of 586 decks
+11% synergy
Mana Drain
15% of 39 decks
+8% synergy
Generous Gift
15% of 255 decks
+3% synergy
Blood for the Blood God!
14% of 70 decks
+13% synergy
Utter End
14% of 255 decks
+12% synergy
Vampiric Tutor
14% of 586 decks
+4% synergy
Gaze of the Gorgon
14% of 66 decks
+14% synergy
Obscuring Haze
14% of 66 decks
+13% synergy
Abrade
14% of 81 decks
+8% synergy
Bitter Triumph
13% of 144 decks
+10% synergy
Revitalize
13% of 255 decks
+13% synergy
An Offer You Can't Refuse
13% of 39 decks
+3% synergy
Cyclonic Rift
13% of 39 decks
-1% synergy
Entish Restoration
12% of 24 decks
+8% synergy
Seething Song
12% of 81 decks
+9% synergy
Lightning Bolt
12% of 81 decks
+7% synergy
Blessed Respite
12% of 66 decks
+12% synergy
Supernatural Stamina
12% of 586 decks
+11% synergy
Deadly Rollick
11% of 586 decks
+6% synergy
Gaea's Gift
11% of 44 decks
+10% synergy
Return to Nature
11% of 66 decks
+7% synergy
Sorceries (50)
Peer into the Abyss
44% of 586 decks
+42% synergy
Rampant Growth
42% of 66 decks
+26% synergy
Damn
39% of 255 decks
+35% synergy
Sign in Blood
38% of 586 decks
+33% synergy
Kodama's Reach
33% of 66 decks
+18% synergy
Three Visits
32% of 66 decks
+20% synergy
Feed the Swarm
31% of 586 decks
+21% synergy
Farewell
31% of 249 decks
+24% synergy
Bala Ged Recovery
30% of 66 decks
+26% synergy
Read the Bones
30% of 586 decks
+26% synergy
Nature's Lore
27% of 66 decks
+12% synergy
Blasphemous Act
27% of 81 decks
+11% synergy
Fumigate
26% of 255 decks
+25% synergy
Farseek
24% of 66 decks
+8% synergy
Night's Whisper
23% of 586 decks
+18% synergy
Eerie Ultimatum
22% of 18 decks
+21% synergy
Torment of Hailfire
22% of 586 decks
+19% synergy
Diabolic Tutor
21% of 586 decks
+18% synergy
Vandalblast
21% of 81 decks
+13% synergy
Demonic Tutor
20% of 586 decks
+8% synergy
Dig Up
19% of 63 decks
+18% synergy
Kaya's Wrath
19% of 255 decks
+18% synergy
Cut // Ribbons
19% of 81 decks
+18% synergy
Culling Ritual
18% of 66 decks
+16% synergy
Harmonize
17% of 66 decks
+12% synergy
Death Grasp
16% of 255 decks
+16% synergy
Temporal Extortion
16% of 586 decks
+16% synergy
Maddening Cacophony
15% of 39 decks
+14% synergy
Destined // Lead
15% of 66 decks
+15% synergy
Burn Down the House
14% of 79 decks
+13% synergy
Mana Geyser
14% of 81 decks
+10% synergy
Faithless Looting
14% of 81 decks
+5% synergy
Jeska's Will
14% of 81 decks
+5% synergy
Damnation
13% of 586 decks
+9% synergy
Windfall
13% of 39 decks
+6% synergy
Damnable Pact
13% of 586 decks
+12% synergy
Disrupt Decorum
12% of 81 decks
+11% synergy
Vindicate
12% of 255 decks
+10% synergy
Genesis Storm
12% of 66 decks
+12% synergy
Roar of Challenge
12% of 66 decks
+12% synergy
Toxic Deluge
12% of 586 decks
+4% synergy
Mutilate
12% of 586 decks
+11% synergy
Reanimate
12% of 586 decks
+4% synergy
Into the North
11% of 66 decks
+10% synergy
Regrowth
11% of 66 decks
+9% synergy
Skyshroud Claim
11% of 66 decks
+6% synergy
Rite of Replication
10% of 39 decks
+8% synergy
Preordain
10% of 39 decks
+5% synergy
Ponder
10% of 39 decks
+4% synergy
Profane Command
10% of 586 decks
+9% synergy
Utility Artifacts (34)
Quietus Spike
43% of 586 decks
+42% synergy
Tainted Sigil
38% of 255 decks
+38% synergy
Swiftfoot Boots
37% of 586 decks
+9% synergy
Bolas's Citadel
35% of 586 decks
+30% synergy
Scytheclaw
31% of 586 decks
+31% synergy
Aetherflux Reservoir
25% of 586 decks
+21% synergy
Wayfarer's Bauble
22% of 586 decks
+11% synergy
Lightning Greaves
21% of 586 decks
-4% synergy
Alhammarret's Archive
19% of 586 decks
+17% synergy
Bontu's Monument
19% of 586 decks
+17% synergy
Strionic Resonator
17% of 586 decks
+13% synergy
Jet Medallion
16% of 586 decks
+14% synergy
Archaeomancer's Map
16% of 255 decks
+14% synergy
Well of Lost Dreams
13% of 586 decks
+11% synergy
Vorpal Sword
12% of 586 decks
+11% synergy
Whispersilk Cloak
10% of 586 decks
+6% synergy
The One Ring
9% of 316 decks
+0% synergy
Expedition Map
9% of 586 decks
+6% synergy
Cosmos Elixir
8% of 586 decks
+7% synergy
Folio of Fancies
8% of 39 decks
+7% synergy
Winged Boots
8% of 39 decks
+7% synergy
Tithing Blade
8% of 144 decks
+7% synergy
Conduit of Worlds
8% of 40 decks
+4% synergy
Mindcrank
7% of 586 decks
+5% synergy
Sensei's Divining Top
7% of 586 decks
+1% synergy
Mask of Griselbrand
7% of 578 decks
+6% synergy
Chalice of Life
7% of 586 decks
+6% synergy
The Great Henge
6% of 66 decks
+1% synergy
Lithoform Engine
6% of 586 decks
+4% synergy
Fireshrieker
6% of 586 decks
+4% synergy
Trailblazer's Boots
6% of 586 decks
+4% synergy
Ashnod's Altar
6% of 586 decks
-2% synergy
Thieves' Tools
6% of 586 decks
+5% synergy
Prowler's Helm
5% of 586 decks
+5% synergy
Enchantments (50)
Exquisite Blood
44% of 586 decks
+41% synergy
Cleric Class
40% of 255 decks
+39% synergy
Life Insurance
38% of 246 decks
+37% synergy
Phyrexian Arena
36% of 586 decks
+28% synergy
Blind Obedience
32% of 255 decks
+29% synergy
Ghostly Prison
27% of 255 decks
+22% synergy
Axis of Mortality
27% of 255 decks
+27% synergy
Boon Reflection
27% of 255 decks
+27% synergy
Rhystic Study
26% of 39 decks
+12% synergy
Smothering Tithe
24% of 255 decks
+13% synergy
Painful Quandary
22% of 586 decks
+21% synergy
Lure
21% of 66 decks
+21% synergy
Havoc Festival
20% of 81 decks
+20% synergy
Descent into Avernus
19% of 77 decks
+18% synergy
Raised by Giants
19% of 59 decks
+18% synergy
Propaganda
18% of 39 decks
+13% synergy
Sterling Grove
17% of 18 decks
+15% synergy
Mirari's Wake
17% of 18 decks
+13% synergy
Black Market Connections
16% of 541 decks
+10% synergy
Black Market
16% of 586 decks
+13% synergy
Mystic Remora
15% of 39 decks
+6% synergy
Underworld Dreams
15% of 586 decks
+14% synergy
Theater of Horrors
15% of 81 decks
+14% synergy
Greed
14% of 586 decks
+13% synergy
Binding the Old Gods
14% of 66 decks
+12% synergy
Sylvan Library
14% of 66 decks
+8% synergy
Warstorm Surge
14% of 81 decks
+11% synergy
Family's Favor
13% of 60 decks
+13% synergy
Reflections of Littjara
13% of 39 decks
+10% synergy
Tainted Remedy
13% of 586 decks
+12% synergy
Court of Ambition
12% of 586 decks
+11% synergy
Bloodchief Ascension
12% of 586 decks
+11% synergy
Dictate of the Twin Gods
12% of 81 decks
+11% synergy
Impact Tremors
12% of 81 decks
+8% synergy
Journey to Eternity
12% of 66 decks
+11% synergy
Authority of the Consuls
12% of 255 decks
+10% synergy
The Meathook Massacre
12% of 578 decks
+9% synergy
Shiny Impetus
11% of 81 decks
+10% synergy
Goblin Bombardment
11% of 81 decks
+8% synergy
Aqueous Form
10% of 39 decks
+8% synergy
Fiery Emancipation
10% of 81 decks
+8% synergy
Dawn of Hope
9% of 255 decks
+8% synergy
Smuggler's Share
9% of 246 decks
+8% synergy
Viridian Revel
9% of 66 decks
+9% synergy
Gratuitous Violence
9% of 81 decks
+8% synergy
Necropotence
9% of 586 decks
+6% synergy
March of the Canonized
8% of 61 decks
+7% synergy
Kaya's Ghostform
8% of 586 decks
+6% synergy
Rogue Class
8% of 39 decks
+7% synergy
Arcane Adaptation
8% of 39 decks
+7% synergy
Planeswalkers (10)
Sorin Markov
27% of 586 decks
+27% synergy
Kaya, Intangible Slayer
25% of 153 decks
+25% synergy
Vraska the Unseen
20% of 66 decks
+19% synergy
Sorin, Vengeful Bloodlord
13% of 255 decks
+12% synergy
Ob Nixilis, the Adversary
12% of 78 decks
+11% synergy
Zariel, Archduke of Avernus
11% of 81 decks
+11% synergy
Vraska, Golgari Queen
11% of 66 decks
+10% synergy
Sorin, Grim Nemesis
10% of 255 decks
+10% synergy
Chandra, Torch of Defiance
6% of 81 decks
+5% synergy
Ob Nixilis, the Hate-Twisted
6% of 586 decks
+6% synergy
Utility Lands (32)
Bojuka Bog
42% of 586 decks
+27% synergy
Rogue's Passage
34% of 586 decks
+15% synergy
Cabal Coffers
30% of 586 decks
+24% synergy
Restless Fortress
29% of 97 decks
+28% synergy
Urborg, Tomb of Yawgmoth
27% of 586 decks
+17% synergy
Reliquary Tower
24% of 586 decks
-5% synergy
Vault of the Archangel
24% of 255 decks
+21% synergy
Boseiju, Who Endures
20% of 61 decks
+10% synergy
Cabal Stronghold
17% of 586 decks
+16% synergy
Shambling Vent
17% of 255 decks
+16% synergy
Castle Locthwain
14% of 586 decks
+11% synergy
Takenuma, Abandoned Mire
14% of 567 decks
+8% synergy
Hissing Quagmire
14% of 66 decks
+13% synergy
Witch's Cottage
13% of 586 decks
+11% synergy
Temple of the False God
13% of 586 decks
+3% synergy
Mortuary Mire
11% of 586 decks
+8% synergy
Nykthos, Shrine to Nyx
11% of 586 decks
+5% synergy
Eiganjo, Seat of the Empire
11% of 249 decks
+6% synergy
War Room
11% of 586 decks
+4% synergy
Kabira Crossroads
10% of 255 decks
+10% synergy
Spinerock Knoll
10% of 81 decks
+8% synergy
Access Tunnel
10% of 586 decks
+7% synergy
Molten Slagheap
9% of 81 decks
+8% synergy
The Black Gate
9% of 258 decks
+6% synergy
Ancient Tomb
8% of 586 decks
-2% synergy
Radiant Fountain
8% of 586 decks
+7% synergy
Shizo, Death's Storehouse
8% of 586 decks
+5% synergy
Castle Garenbrig
6% of 66 decks
+4% synergy
Gaea's Cradle
6% of 66 decks
+3% synergy
Barren Moor
6% of 586 decks
+4% synergy
Phyrexian Tower
6% of 586 decks
+1% synergy
Leechridden Swamp
5% of 586 decks
+5% synergy
Mana Artifacts (36)
Sol Ring
89% of 586 decks
+5% synergy
Arcane Signet
76% of 586 decks
+5% synergy
Orzhov Signet
67% of 255 decks
+61% synergy
Talisman of Hierarchy
53% of 255 decks
+47% synergy
Rakdos Signet
49% of 81 decks
+42% synergy
Talisman of Dominance
41% of 39 decks
+33% synergy
Talisman of Indulgence
38% of 81 decks
+33% synergy
Dimir Signet
36% of 39 decks
+28% synergy
Mind Stone
35% of 586 decks
+17% synergy
Boros Signet
33% of 12 decks
+28% synergy
Talisman of Creativity
28% of 18 decks
+21% synergy
Golgari Signet
26% of 66 decks
+23% synergy
Commander's Sphere
24% of 586 decks
+8% synergy
Fellwar Stone
24% of 586 decks
+3% synergy
Charcoal Diamond
21% of 586 decks
+18% synergy
Thought Vessel
18% of 586 decks
+1% synergy
Izzet Signet
17% of 18 decks
+10% synergy
Talisman of Resilience
15% of 66 decks
+13% synergy
Rakdos Locket
15% of 81 decks
+15% synergy
Marble Diamond
13% of 255 decks
+10% synergy
Pristine Talisman
11% of 586 decks
+10% synergy
Rakdos Cluestone
11% of 81 decks
+11% synergy
Mana Crypt
10% of 586 decks
-1% synergy
Caged Sun
10% of 586 decks
+8% synergy
Thran Dynamo
8% of 586 decks
+3% synergy
Orzhov Locket
8% of 255 decks
+8% synergy
Golgari Cluestone
8% of 66 decks
+7% synergy
Nyx Lotus
7% of 586 decks
+5% synergy
Gilded Lotus
7% of 586 decks
+3% synergy
Jeweled Lotus
7% of 586 decks
-1% synergy
Decanter of Endless Water
6% of 541 decks
+1% synergy
Orzhov Cluestone
6% of 255 decks
+6% synergy
Rakdos Keyrune
6% of 81 decks
+6% synergy
Fire Diamond
6% of 81 decks
+3% synergy
Throne of Eldraine
6% of 209 decks
+3% synergy
Infernal Idol
5% of 399 decks
+5% synergy
Lands (50)
Crumbling Necropolis
67% of 18 decks
+63% synergy
Command Tower
59% of 586 decks
-15% synergy
Zagoth Triome
57% of 7 decks
+54% synergy
Orzhov Basilica
55% of 255 decks
+52% synergy
Tainted Field
54% of 255 decks
+51% synergy
Caves of Koilos
52% of 255 decks
+46% synergy
Smoldering Marsh
52% of 81 decks
+45% synergy
Nomad Outpost
50% of 12 decks
+47% synergy
Isolated Chapel
49% of 255 decks
+43% synergy
Sunken Hollow
46% of 39 decks
+37% synergy
Xander's Lounge
44% of 18 decks
+41% synergy
Llanowar Wastes
44% of 66 decks
+39% synergy
Woodland Cemetery
44% of 66 decks
+38% synergy
Rakdos Carnarium
43% of 81 decks
+40% synergy
Dragonskull Summit
43% of 81 decks
+36% synergy
Opulent Palace
43% of 7 decks
+40% synergy
Ziatora's Proving Ground
43% of 7 decks
+40% synergy
Stomping Ground
43% of 7 decks
+34% synergy
Breeding Pool
43% of 7 decks
+34% synergy
Scoured Barrens
42% of 255 decks
+40% synergy
Temple of Silence
42% of 255 decks
+38% synergy
Golgari Rot Farm
41% of 66 decks
+37% synergy
Godless Shrine
41% of 255 decks
+31% synergy
Canopy Vista
39% of 18 decks
+31% synergy
Steam Vents
39% of 18 decks
+30% synergy
Overgrown Tomb
38% of 66 decks
+29% synergy
Undercity Sewers
38% of 8 decks
+34% synergy
Hallowed Fountain
38% of 8 decks
+28% synergy
Darkbore Pathway
36% of 66 decks
+34% synergy
Temple of Malady
36% of 66 decks
+33% synergy
Vault of Champions
36% of 255 decks
+30% synergy
Necroblossom Snarl
35% of 66 decks
+33% synergy
Shattered Sanctum
34% of 253 decks
+31% synergy
Sandsteppe Citadel
33% of 18 decks
+31% synergy
Indatha Triome
33% of 18 decks
+30% synergy
Shivan Reef
33% of 18 decks
+27% synergy
Drowned Catacomb
33% of 39 decks
+27% synergy
Blood Crypt
33% of 81 decks
+24% synergy
Watery Grave
33% of 39 decks
+23% synergy
Foreboding Ruins
32% of 81 decks
+29% synergy
Tainted Wood
32% of 66 decks
+29% synergy
Fetid Heath
31% of 255 decks
+29% synergy
Myriad Landscape
31% of 586 decks
+11% synergy
Deathcap Glade
30% of 63 decks
+27% synergy
Desolate Mire
29% of 34 decks
+27% synergy
Undergrowth Stadium
29% of 66 decks
+23% synergy
Shineshadow Snarl
29% of 255 decks
+26% synergy
Luxury Suite
28% of 81 decks
+22% synergy
Choked Estuary
28% of 39 decks
+24% synergy
Dimir Aqueduct
28% of 39 decks
+24% synergy