Ob Nixilis, Captive Kingpin
Agatha's Soul Cauldron
Walking Ballista
Prerequisites
What do I need to start this combo?
Walking Ballista in exile (Walking Ballista exiled by Agatha's Soul Cauldron in exile). | |
Ob Nixilis and Agatha's Soul Cauldron on the battlefield. | |
Ob Nixilis has at least one +1/+1 counter on it. |
Steps
How does this combo work?
1 | Activate Ob Nixilis using Walking Ballista's second ability by removing a +1/+1 counter from it, dealing 1 damage to an opponent. |
2 | Ob Nixilis triggers, putting a +1/+1 counter on itself and exiling the top card of your library. |
3 | Repeat. |
Results
What do I get from this combo?
Exile your library | |
Infinite damage |
Combo Metadata
2998
DECKS
0.21%
OF 1437528 ELIGIBLE DECKS
Rank 1121
MOST PLAYED OF 34804 COMBOS
{ } Commander Bracket Information
In which Commander Bracket(s) am I allowed to play this combo?
1-2
Exhibition and Core
(no 2-card combos)
Any combos that require three or more cards are allowed
3
Upgraded
(no early game 2-card combos)
Any combos that require 3 or more cards are allowed
4-5
Optimized and CEDH
(all combos are allowed)
All combos are allowed.
Ob Nixilis, Captive Kingpin
30.04% of 9079 decks
2727 decks
Gev, Scaled Scorch
0.88% of 7627 decks
67 decks
Valgavoth, Harrower of Souls
0.16% of 16498 decks
27 decks
Francisco, Fowl Marauder // Kraum, Ludevic's Opus
2.31% of 563 decks
13 decks
Francisco, Fowl Marauder // Rograkh, Son of Rohgahh
8.45% of 142 decks
12 decks
Deadpool, Trading Card
0.10% of 10540 decks
11 decks
Prosper, Tome-Bound
0.07% of 12981 decks
9 decks
Sisay, Weatherlight Captain
0.06% of 14344 decks
8 decks
Indoraptor, the Perfect Hybrid
0.07% of 8298 decks
6 decks
Rograkh, Son of Rohgahh // Tymna the Weaver
0.57% of 878 decks
5 decks
Jeska, Thrice Reborn // Tymna the Weaver
0.32% of 1555 decks
5 decks
Reyhan, Last of the Abzan // Rograkh, Son of Rohgahh
0.67% of 746 decks
5 decks
Armix, Filigree Thrasher // Jeska, Thrice Reborn
8.70% of 46 decks
4 decks
Tana, the Bloodsower // Tymna the Weaver
0.14% of 2904 decks
4 decks
Winter, Misanthropic Guide
0.05% of 5519 decks
3 decks
Marchesa, the Black Rose
0.03% of 11100 decks
3 decks
Malcolm, Keen-Eyed Navigator // Vial Smasher the Fierce
0.11% of 2615 decks
3 decks
Kraum, Ludevic's Opus // Reyhan, Last of the Abzan
0.89% of 336 decks
3 decks
New Cards
Consult the Star Charts
50% of 2 decks
+49% synergy
Mm'menon, the Right Hand
50% of 2 decks
+49% synergy
Moonlit Meditation
50% of 2 decks
+49% synergy
Steelswarm Operator
50% of 2 decks
+49% synergy
Unravel
50% of 2 decks
+50% synergy
High Synergy Cards
Kederekt Parasite
90% of 2995 decks
+88% synergy
Razorkin Needlehead
86% of 2193 decks
+83% synergy
Unstable Amulet
82% of 2517 decks
+81% synergy
Prosper, Tome-Bound
82% of 2995 decks
+80% synergy
Birgi, God of Storytelling
84% of 2995 decks
+78% synergy
Kessig Flamebreather
80% of 2995 decks
+77% synergy
Pyroblast
83% of 2995 decks
+77% synergy
Cabal Ritual
82% of 2995 decks
+77% synergy
Red Elemental Blast
82% of 2995 decks
+76% synergy
All Will Be One
77% of 2995 decks
+74% synergy
Top Cards
Dark Ritual
95% of 2995 decks
+72% synergy
Enlightened Tutor
81% of 48 decks
+65% synergy
Deadly Rollick
79% of 2995 decks
+66% synergy
Ragavan, Nimble Pilferer
79% of 2995 decks
+71% synergy
Esper Sentinel
77% of 48 decks
+58% synergy
Coruscation Mage
77% of 2380 decks
+73% synergy
Grapeshot
77% of 2995 decks
+73% synergy
Rite of Flame
74% of 2995 decks
+71% synergy
Wishclaw Talisman
73% of 2995 decks
+68% synergy
Mayhem Devil
73% of 2995 decks
+63% synergy
Game Changers
Orcish Bowmasters
92% of 2995 decks
+83% synergy
Deflecting Swat
89% of 2995 decks
+73% synergy
Jeska's Will
89% of 2995 decks
+73% synergy
Demonic Tutor
88% of 2995 decks
+67% synergy
Vampiric Tutor
87% of 2995 decks
+71% synergy
Underworld Breach
81% of 2995 decks
+75% synergy
Gamble
80% of 2995 decks
+71% synergy
Chrome Mox
78% of 2995 decks
+72% synergy
Ancient Tomb
78% of 2995 decks
+68% synergy
Mana Vault
77% of 2995 decks
+71% synergy
Creatures
Simian Spirit Guide
73% of 2995 decks
+67% synergy
Birds of Paradise
72% of 54 decks
+45% synergy
Dualcaster Mage
70% of 2995 decks
+66% synergy
Reckless Fireweaver
67% of 2995 decks
+63% synergy
Firebrand Archer
66% of 2995 decks
+63% synergy
Thassa's Oracle
63% of 59 decks
+56% synergy
Grand Abolisher
62% of 48 decks
+53% synergy
Delighted Halfling
61% of 54 decks
+49% synergy
Ranger-Captain of Eos
60% of 48 decks
+56% synergy
Lotho, Corrupt Shirriff
60% of 48 decks
+48% synergy
Ignoble Hierarch
59% of 54 decks
+35% synergy
Scrawling Crawler
58% of 1886 decks
+56% synergy
Deathrite Shaman
57% of 54 decks
+46% synergy
Imperial Recruiter
57% of 2995 decks
+52% synergy
Party Thrasher
53% of 2510 decks
+52% synergy
Opposition Agent
52% of 2995 decks
+46% synergy
Faeburrow Elder
50% of 24 decks
+39% synergy
Jegantha, the Wellspring
47% of 17 decks
+42% synergy
Goblin Engineer
44% of 2995 decks
+41% synergy
Heliod, Sun-Crowned
44% of 48 decks
+41% synergy
Kinnan, Bonder Prodigy
43% of 23 decks
+39% synergy
Dauthi Voidwalker
42% of 2995 decks
+35% synergy
Derevi, Empyrial Tactician
41% of 17 decks
+37% synergy
Esika, God of the Tree
41% of 17 decks
+35% synergy
Bloom Tender
41% of 54 decks
+33% synergy
Disciple of the Vault
38% of 2995 decks
+37% synergy
Emiel the Blessed
33% of 24 decks
+30% synergy
Elvish Spirit Guide
31% of 54 decks
+28% synergy
Drannith Magistrate
31% of 48 decks
+26% synergy
Gleeful Arsonist
31% of 2146 decks
+29% synergy
Noble Hierarch
29% of 17 decks
+14% synergy
Enduring Vitality
29% of 31 decks
+23% synergy
Delney, Streetwise Lookout
29% of 38 decks
+25% synergy
Dockside Extortionist
28% of 2995 decks
+22% synergy
Voice of Victory
27% of 11 decks
+21% synergy
Tinder Wall
26% of 54 decks
+23% synergy
Vivi Ornitier
25% of 8 decks
+21% synergy
Kutzil, Malamet Exemplar
25% of 20 decks
+10% synergy
Avalanche of Sector 7
24% of 820 decks
+24% synergy
Dragon's Rage Channeler
24% of 2995 decks
+22% synergy
Archivist of Oghma
23% of 48 decks
+18% synergy
Selvala, Heart of the Wilds
22% of 54 decks
+17% synergy
Phyrexian Metamorph
22% of 59 decks
+15% synergy
Lavinia, Azorius Renegade
21% of 19 decks
+18% synergy
Lurrus of the Dream-Den
21% of 48 decks
+18% synergy
Marionette Apprentice
20% of 2525 decks
+15% synergy
Squall, SeeD Mercenary
20% of 5 decks
+18% synergy
Urabrask
19% of 2995 decks
+17% synergy
Glaring Fleshraker
19% of 2515 decks
+18% synergy
Deadpool, Trading Card
19% of 1041 decks
+17% synergy
Instants
Silence
69% of 48 decks
+62% synergy
Lightning Bolt
67% of 2995 decks
+56% synergy
Pyretic Ritual
67% of 2995 decks
+64% synergy
Force of Will
64% of 59 decks
+54% synergy
Fierce Guardianship
64% of 59 decks
+46% synergy
Desperate Ritual
63% of 2995 decks
+61% synergy
Swords to Plowshares
58% of 48 decks
-4% synergy
Culling the Weak
58% of 2995 decks
+54% synergy
Swan Song
58% of 59 decks
+41% synergy
Mental Misstep
56% of 59 decks
+50% synergy
Worldly Tutor
56% of 54 decks
+43% synergy
Pact of Negation
54% of 59 decks
+47% synergy
Fire Covenant
52% of 2995 decks
+49% synergy
Final Fortune
52% of 2995 decks
+50% synergy
Bolt Bend
51% of 2995 decks
+47% synergy
Tainted Pact
51% of 2995 decks
+47% synergy
Flusterstorm
51% of 59 decks
+44% synergy
Saw in Half
50% of 2995 decks
+46% synergy
Untimely Malfunction
49% of 2173 decks
+42% synergy
Brain Freeze
49% of 59 decks
+46% synergy
Force of Negation
49% of 59 decks
+41% synergy
Mindbreak Trap
47% of 59 decks
+43% synergy
An Offer You Can't Refuse
47% of 59 decks
+25% synergy
Flare of Duplication
46% of 2525 decks
+43% synergy
Cyclonic Rift
46% of 59 decks
+21% synergy
Abrade
45% of 2995 decks
+33% synergy
Mystical Tutor
42% of 59 decks
+29% synergy
Ad Nauseam
42% of 2995 decks
+39% synergy
Veil of Summer
39% of 54 decks
+33% synergy
Abrupt Decay
39% of 54 decks
+29% synergy
Tibalt's Trickery
38% of 2995 decks
+33% synergy
Eladamri's Call
38% of 24 decks
+28% synergy
Noxious Revival
37% of 54 decks
+32% synergy
Rending Volley
32% of 2995 decks
+32% synergy
Assassin's Trophy
31% of 54 decks
+1% synergy
Chord of Calling
30% of 54 decks
+24% synergy
Path to Exile
29% of 48 decks
-18% synergy
Borne Upon a Wind
29% of 59 decks
+25% synergy
Slaughter Pact
28% of 2995 decks
+27% synergy
Gut Shot
28% of 2995 decks
+26% synergy
Delayed Blast Fireball
26% of 2995 decks
+23% synergy
Chain of Vapor
25% of 59 decks
+22% synergy
Entomb
24% of 2995 decks
+17% synergy
Crop Rotation
24% of 54 decks
+14% synergy
Seething Song
23% of 2995 decks
+17% synergy
Dismember
22% of 2995 decks
+19% synergy
Intuition
22% of 59 decks
+20% synergy
Snap
22% of 59 decks
+15% synergy
Mana Drain
22% of 59 decks
+7% synergy
Imp's Mischief
21% of 2995 decks
+18% synergy
Sorceries
Imperial Seal
70% of 2995 decks
+64% synergy
Wheel of Fortune
60% of 2995 decks
+55% synergy
Diabolic Intent
58% of 2995 decks
+50% synergy
Molten Duplication
54% of 2622 decks
+52% synergy
Sevinne's Reclamation
52% of 48 decks
+45% synergy
Reanimate
51% of 2995 decks
+33% synergy
Praetor's Grasp
44% of 2995 decks
+42% synergy
Beseech the Mirror
43% of 2995 decks
+40% synergy
Twinflame
41% of 2995 decks
+38% synergy
Finale of Devastation
41% of 54 decks
+33% synergy
Neoform
39% of 23 decks
+35% synergy
Eldritch Evolution
39% of 54 decks
+34% synergy
Yawgmoth's Will
39% of 2995 decks
+37% synergy
Culling Ritual
30% of 54 decks
+19% synergy
Toxic Deluge
28% of 2995 decks
+10% synergy
Windfall
25% of 59 decks
+13% synergy
Strike It Rich
21% of 2995 decks
+18% synergy
Feed the Swarm
20% of 2995 decks
+3% synergy
Mnemonic Betrayal
19% of 59 decks
+15% synergy
End the Festivities
17% of 2995 decks
+15% synergy
Shatterskull Smashing
15% of 2995 decks
+12% synergy
Green Sun's Zenith
15% of 54 decks
+10% synergy
Grim Tutor
14% of 2995 decks
+10% synergy
Fabricate
14% of 59 decks
+8% synergy
Faithless Looting
11% of 2995 decks
-6% synergy
Vandalblast
11% of 2995 decks
-5% synergy
Wheel of Misfortune
10% of 2995 decks
+7% synergy
Transmute Artifact
10% of 59 decks
+9% synergy
Timetwister
10% of 59 decks
+9% synergy
Gitaxian Probe
10% of 59 decks
+5% synergy
Blasphemous Act
10% of 2995 decks
-23% synergy
Light Up the Stage
8% of 2995 decks
+6% synergy
Bridgeworks Battle
8% of 37 decks
+4% synergy
Burning Inquiry
8% of 2995 decks
+7% synergy
Winds of Change
7% of 2995 decks
+6% synergy
Nature's Lore
7% of 54 decks
-24% synergy
Farseek
7% of 54 decks
-28% synergy
Peer into the Abyss
7% of 2995 decks
+5% synergy
Reckless Handling
7% of 2995 decks
+6% synergy
Tectonic Hazard
7% of 2954 decks
+5% synergy
Flicker
6% of 48 decks
+6% synergy
Urza's Ruinous Blast
6% of 48 decks
+4% synergy
Heat Shimmer
6% of 2995 decks
+5% synergy
Three Visits
6% of 54 decks
-19% synergy
Cultivate
6% of 54 decks
-39% synergy
Vicious Rumors
6% of 2995 decks
+5% synergy
Reshape
5% of 59 decks
+4% synergy
Utility Artifacts
Sensei's Divining Top
71% of 2995 decks
+67% synergy
Grinding Station
53% of 2995 decks
+53% synergy
The One Ring
42% of 2995 decks
+34% synergy
Defense Grid
42% of 2995 decks
+41% synergy
Bolas's Citadel
41% of 2995 decks
+32% synergy
Black Mage's Rod
39% of 833 decks
+36% synergy
Vexing Bauble
29% of 2510 decks
+28% synergy
Lightning Greaves
28% of 2995 decks
+3% synergy
Cloudstone Curio
21% of 2995 decks
+20% synergy
Birthing Pod
15% of 54 decks
+13% synergy
Conqueror's Flail
14% of 2995 decks
+13% synergy
Imposter Mech
14% of 59 decks
+12% synergy
Astrologian's Planisphere
12% of 8 decks
+11% synergy
Aetherflux Reservoir
11% of 2995 decks
+7% synergy
Swiftfoot Boots
9% of 2995 decks
-18% synergy
Ruby Medallion
8% of 2995 decks
+5% synergy
Copper Tablet
6% of 2995 decks
+6% synergy
Portable Hole
6% of 48 decks
+6% synergy
The Great Henge
6% of 54 decks
-4% synergy
Enchantments
Rhystic Study
71% of 59 decks
+45% synergy
Mystic Remora
68% of 59 decks
+51% synergy
Smothering Tithe
52% of 48 decks
+29% synergy
Necropotence
51% of 2995 decks
+45% synergy
Terrasymbiosis
50% of 2 decks
+47% synergy
Roiling Vortex
36% of 2995 decks
+35% synergy
Oath of Teferi
32% of 19 decks
+29% synergy
Manabarbs
25% of 2995 decks
+23% synergy
Static Prison
21% of 33 decks
+21% synergy
Touch the Spirit Realm
21% of 48 decks
+19% synergy
Sylvan Library
20% of 54 decks
+10% synergy
Underworld Dreams
20% of 2995 decks
+18% synergy
Rhythm of the Wild
19% of 54 decks
-5% synergy
Curiosity
17% of 59 decks
+13% synergy
Carpet of Flowers
15% of 54 decks
+11% synergy
Blind Obedience
15% of 48 decks
+8% synergy
Chthonian Nightmare
13% of 2565 decks
+12% synergy
Survival of the Fittest
13% of 54 decks
+11% synergy
Counterbalance
10% of 59 decks
+9% synergy
Powerbalance
9% of 2527 decks
+8% synergy
Utopia Sprawl
9% of 54 decks
+1% synergy
Wild Growth
9% of 54 decks
-1% synergy
Blood Moon
9% of 2995 decks
+6% synergy
Flowering of the White Tree
8% of 48 decks
+4% synergy
Food Chain
7% of 54 decks
+6% synergy
Pyrohemia
7% of 2995 decks
+6% synergy
Dress Down
7% of 59 decks
+5% synergy
Insidious Roots
7% of 45 decks
+1% synergy
Deafening Silence
6% of 48 decks
+4% synergy
Impact Tremors
6% of 2995 decks
-4% synergy
Hardened Scales
6% of 54 decks
-4% synergy
Doubling Season
6% of 54 decks
-4% synergy
Animate Dead
6% of 2995 decks
-4% synergy
Pestilence
5% of 2995 decks
+4% synergy
Ophidian Eye
5% of 59 decks
+3% synergy
Wizard Class
5% of 59 decks
+1% synergy
Battles
Invasion of Ikoria
20% of 54 decks
+17% synergy
Planeswalkers
Aminatou, the Fateshifter
37% of 19 decks
+34% synergy
Teferi, Time Raveler
37% of 19 decks
+30% synergy
Grist, the Hunger Tide
24% of 54 decks
+20% synergy
Tyvar, Jubilant Brawler
22% of 54 decks
+19% synergy
Saheeli Rai
12% of 59 decks
+11% synergy
Dihada, Binder of Wills
10% of 48 decks
+6% synergy
Nicol Bolas, Dragon-God
10% of 59 decks
+6% synergy
Tezzeret the Seeker
8% of 59 decks
+6% synergy
Ashiok, Dream Render
8% of 59 decks
+5% synergy
Vivien on the Hunt
6% of 54 decks
+5% synergy
Minsc & Boo, Timeless Heroes
6% of 54 decks
+4% synergy
Domri, Anarch of Bolas
6% of 54 decks
+2% synergy
Utility Lands
Boseiju, Who Endures
67% of 54 decks
+48% synergy
Otawara, Soaring City
54% of 59 decks
+38% synergy
Urza's Saga
49% of 2995 decks
+42% synergy
City of Traitors
37% of 2995 decks
+36% synergy
Gaea's Cradle
37% of 54 decks
+31% synergy
Emergence Zone
35% of 2995 decks
+33% synergy
Shifting Woodland
24% of 37 decks
+17% synergy
Takenuma, Abandoned Mire
23% of 2995 decks
+14% synergy
Cabal Pit
21% of 2995 decks
+20% synergy
Phyrexian Tower
21% of 2995 decks
+12% synergy
Minamo, School at Water's Edge
20% of 59 decks
+16% synergy
Urborg, Tomb of Yawgmoth
18% of 2995 decks
+9% synergy
Shivan Gorge
18% of 2995 decks
+16% synergy
Barbarian Ring
17% of 2995 decks
+17% synergy
Lindblum, Industrial Regency
17% of 777 decks
+13% synergy
Homeward Path
15% of 2995 decks
+14% synergy
Sokenzan, Crucible of Defiance
15% of 2995 decks
+12% synergy
Sunscorched Desert
14% of 2995 decks
+13% synergy
Bojuka Bog
7% of 2995 decks
-23% synergy
Arena of Glory
7% of 2506 decks
+1% synergy
Cephalid Coliseum
7% of 59 decks
+4% synergy
Leechridden Swamp
6% of 2995 decks
+5% synergy
Great Furnace
6% of 2995 decks
+1% synergy
Tree of Tales
6% of 54 decks
+3% synergy
Dryad Arbor
6% of 54 decks
+2% synergy
Academy Ruins
5% of 59 decks
+0% synergy
Seat of the Synod
5% of 59 decks
-1% synergy
Mana Artifacts
Sol Ring
99% of 2995 decks
+15% synergy
Arcane Signet
94% of 2995 decks
+22% synergy
Talisman of Indulgence
87% of 2995 decks
+59% synergy
Lotus Petal
84% of 2995 decks
+77% synergy
Mox Opal
73% of 2995 decks
+69% synergy
Fellwar Stone
68% of 2995 decks
+47% synergy
Mox Amber
65% of 2995 decks
+61% synergy
Mox Diamond
64% of 2995 decks
+60% synergy
Lion's Eye Diamond
60% of 2995 decks
+58% synergy
Rakdos Signet
43% of 2995 decks
+15% synergy
Talisman of Dominance
41% of 59 decks
+8% synergy
Grim Monolith
33% of 2995 decks
+31% synergy
Mana Crypt
26% of 2995 decks
+22% synergy
Jeweled Lotus
25% of 2995 decks
+22% synergy
Talisman of Hierarchy
25% of 48 decks
-1% synergy
Talisman of Creativity
24% of 59 decks
-5% synergy
Cursed Mirror
20% of 2995 decks
+14% synergy
Talisman of Conviction
10% of 48 decks
-14% synergy
Talisman of Impulse
9% of 54 decks
-1% synergy
Mind Stone
7% of 2995 decks
-9% synergy
Springleaf Drum
6% of 2995 decks
+4% synergy
Everflowing Chalice
5% of 2995 decks
+1% synergy
Lands
Command Tower
97% of 2995 decks
+22% synergy
Blood Crypt
94% of 2995 decks
+56% synergy
Bloodstained Mire
90% of 2995 decks
+79% synergy
Luxury Suite
87% of 2995 decks
+62% synergy
Mount Doom
86% of 2995 decks
+79% synergy
Sulfurous Springs
83% of 2995 decks
+61% synergy
City of Brass
75% of 2995 decks
+67% synergy
Scrubland
73% of 48 decks
+59% synergy
Watery Grave
73% of 59 decks
+33% synergy
Gemstone Caverns
73% of 2995 decks
+68% synergy
Overgrown Tomb
72% of 54 decks
+31% synergy
Polluted Delta
71% of 2995 decks
+60% synergy
Plateau
71% of 48 decks
+59% synergy
Arid Mesa
71% of 2995 decks
+60% synergy
Badlands
71% of 2995 decks
+57% synergy
Stomping Ground
70% of 54 decks
+31% synergy
Mana Confluence
70% of 2995 decks
+63% synergy
Marsh Flats
70% of 2995 decks
+59% synergy
Godless Shrine
69% of 48 decks
+29% synergy
Tundra
68% of 19 decks
+54% synergy
Scalding Tarn
66% of 2995 decks
+55% synergy
Volcanic Island
66% of 59 decks
+52% synergy
Underground Sea
66% of 59 decks
+52% synergy
Wooded Foothills
66% of 2995 decks
+56% synergy
Tropical Island
65% of 23 decks
+51% synergy
Sacred Foundry
65% of 48 decks
+29% synergy
Steam Vents
64% of 59 decks
+27% synergy
Savannah
62% of 24 decks
+50% synergy
Taiga
59% of 54 decks
+46% synergy
Verdant Catacombs
58% of 2995 decks
+47% synergy
Bayou
57% of 54 decks
+44% synergy
Breeding Pool
57% of 23 decks
+16% synergy
Blazemire Verge
48% of 2178 decks
+37% synergy
Exotic Orchard
47% of 2995 decks
+11% synergy
Raucous Theater
46% of 2821 decks
+36% synergy
Temple Garden
46% of 24 decks
+7% synergy
Hallowed Fountain
42% of 19 decks
+2% synergy
Blightstep Pathway
41% of 2995 decks
+32% synergy
Morphic Pool
41% of 59 decks
+15% synergy
Spire of Industry
36% of 2995 decks
+33% synergy
Undergrowth Stadium
33% of 54 decks
+9% synergy
Training Center
32% of 59 decks
+6% synergy
Forbidden Orchard
31% of 2995 decks
+29% synergy
Spire Garden
28% of 54 decks
+5% synergy
Dragonskull Summit
25% of 2995 decks
-9% synergy
Vault of Champions
23% of 48 decks
-2% synergy
Graven Cairns
23% of 2995 decks
+14% synergy
Commercial District
20% of 46 decks
+10% synergy
Underground Mortuary
20% of 46 decks
+7% synergy
Spectator Seating
19% of 48 decks
-5% synergy