Narset, Enlightened Master (Commander) - Optimized

Background image for Fire and Ice: What Cards Are Hot and Cold for Oct. 24?
Julia Maddalena
Oct 24, 2025
Fire and Ice: What Cards Are Hot and Cold for Oct. 24?
This week on Fire and Ice, we're looking at Narset, Enlightened Master and Minsc & Boo. See which cards are hot and cold for these decks.
Deck Filters
Cardsphere
Archidekt
Commander Spellbook
Moxfield
Scryfall
MTGStocks
Avatar's Wrath
3.4%inclusion3 decks88 decks
0%synergy
Planetarium of Wan Shi Tong
3.3%inclusion3 decks92 decks
3%synergy
Waterbender Ascension
2.4%inclusion2 decks82 decks
-1%synergy
Ember Island Production
1.2%inclusion1 decks83 decks
0%synergy
Fire Nation Palace
1.2%inclusion1 decks83 decks
-2%synergy
High Synergy Cards
Time Stretch
66%inclusion284 decks428 decks
64%synergy
Omniscience
62%inclusion267 decks428 decks
60%synergy
Beacon of Tomorrows
61%inclusion259 decks428 decks
59%synergy
Karn's Temporal Sundering
58%inclusion250 decks428 decks
57%synergy
Temporal Mastery
58%inclusion248 decks428 decks
56%synergy
Nexus of Fate
56%inclusion239 decks428 decks
54%synergy
Brainstorm
69%inclusion295 decks428 decks
49%synergy
Seize the Day
50%inclusion214 decks428 decks
48%synergy
Temporal Trespass
47%inclusion203 decks428 decks
46%synergy
Time Warp
48%inclusion204 decks428 decks
45%synergy
Top Cards
Swords to Plowshares
68%inclusion289 decks428 decks
-1%synergy
Path to Exile
48%inclusion207 decks428 decks
-1%synergy
Lightning Greaves
48%inclusion204 decks428 decks
23%synergy
Relentless Assault
47%inclusion203 decks428 decks
45%synergy
Expropriate
46%inclusion197 decks428 decks
45%synergy
Scroll Rack
46%inclusion195 decks428 decks
43%synergy
Walk the Aeons
44%inclusion188 decks428 decks
43%synergy
Temporal Manipulation
43%inclusion185 decks428 decks
42%synergy
Part the Waterveil
43%inclusion185 decks428 decks
42%synergy
Counterspell
43%inclusion183 decks428 decks
8%synergy
Game Changers
Mystical Tutor
54%inclusion231 decks428 decks
43%synergy
Enlightened Tutor
44%inclusion189 decks428 decks
29%synergy
Smothering Tithe
43%inclusion184 decks428 decks
24%synergy
Cyclonic Rift
40%inclusion172 decks428 decks
22%synergy
Rhystic Study
39%inclusion166 decks428 decks
19%synergy
Narset, Parter of Veils
36%inclusion152 decks428 decks
29%synergy
Mana Vault
35%inclusion150 decks428 decks
30%synergy
Fierce Guardianship
32%inclusion135 decks428 decks
16%synergy
Ancient Tomb
31%inclusion131 decks428 decks
23%synergy
Force of Will
26%inclusion113 decks428 decks
20%synergy
Creatures
Generator Servant
30%inclusion128 decks428 decks
29%synergy
Simian Spirit Guide
18%inclusion79 decks428 decks
16%synergy
Grand Abolisher
18%inclusion78 decks428 decks
11%synergy
Esper Sentinel
18%inclusion77 decks428 decks
-2%synergy
Kykar, Wind's Fury
11%inclusion48 decks428 decks
0%synergy
Torch Courier
9.1%inclusion39 decks428 decks
9%synergy
Monastery Mentor
8.9%inclusion38 decks428 decks
-5%synergy
Narset, Enlightened Exile
8.4%inclusion36 decks428 decks
3%synergy
Ragavan, Nimble Pilferer
7.9%inclusion34 decks428 decks
4%synergy
Thassa's Oracle
7.9%inclusion34 decks428 decks
6%synergy
Elsha of the Infinite
7.0%inclusion30 decks428 decks
1%synergy
Spark Double
6.8%inclusion29 decks428 decks
1%synergy
Voice of Victory
6.2%inclusion21 decks339 decks
2%synergy
Silent Arbiter
5.8%inclusion25 decks428 decks
1%synergy
Deepglow Skate
5.8%inclusion25 decks428 decks
-1%synergy
Roaming Throne
5.6%inclusion24 decks428 decks
0%synergy
Flux Channeler
5.6%inclusion24 decks428 decks
-1%synergy
Third Path Iconoclast
5.4%inclusion23 decks428 decks
-6%synergy
Instants
Long-Term Plans
39%inclusion167 decks428 decks
38%synergy
Mana Drain
32%inclusion137 decks428 decks
21%synergy
Narset's Reversal
27%inclusion116 decks428 decks
20%synergy
Dovin's Veto
25%inclusion105 decks428 decks
6%synergy
An Offer You Can't Refuse
24%inclusion103 decks428 decks
4%synergy
Teferi's Protection
23%inclusion99 decks428 decks
9%synergy
Swan Song
23%inclusion97 decks428 decks
6%synergy
Chaos Warp
21%inclusion88 decks428 decks
-1%synergy
Generous Gift
19%inclusion82 decks428 decks
-3%synergy
Negate
18%inclusion79 decks428 decks
2%synergy
Savage Beating
18%inclusion75 decks428 decks
16%synergy
Pact of Negation
17%inclusion74 decks428 decks
13%synergy
Force of Negation
16%inclusion69 decks428 decks
11%synergy
Silence
16%inclusion69 decks428 decks
10%synergy
Boros Charm
15%inclusion65 decks428 decks
-6%synergy
Sink into Stupor
14%inclusion62 decks428 decks
5%synergy
Arcane Denial
14%inclusion60 decks428 decks
-2%synergy
Deflecting Swat
13%inclusion54 decks428 decks
-1%synergy
Brainsurge
12%inclusion53 decks428 decks
10%synergy
Flusterstorm
11%inclusion48 decks428 decks
7%synergy
Dig Through Time
11%inclusion45 decks428 decks
8%synergy
Wear // Tear
10%inclusion43 decks428 decks
3%synergy
Opt
10%inclusion41 decks428 decks
-3%synergy
Red Elemental Blast
8.6%inclusion37 decks428 decks
6%synergy
Pyroblast
8.4%inclusion36 decks428 decks
6%synergy
Lightning Bolt
8.2%inclusion35 decks428 decks
0%synergy
Stroke of Midnight
8.2%inclusion35 decks428 decks
-1%synergy
Delayed Blast Fireball
7.5%inclusion32 decks428 decks
5%synergy
Frantic Search
6.8%inclusion29 decks428 decks
-8%synergy
Pongify
6.5%inclusion28 decks428 decks
-1%synergy
Dispel
6.5%inclusion28 decks428 decks
5%synergy
Reverberate
6.1%inclusion26 decks428 decks
5%synergy
Deflecting Palm
5.8%inclusion25 decks428 decks
1%synergy
Return to Dust
5.8%inclusion25 decks428 decks
4%synergy
Brain Freeze
5.6%inclusion24 decks428 decks
1%synergy
Mindbreak Trap
5.6%inclusion24 decks428 decks
3%synergy
Rapid Hybridization
5.1%inclusion22 decks428 decks
-1%synergy
Mental Misstep
5.1%inclusion22 decks428 decks
2%synergy
Repeated Reverberation
5.1%inclusion22 decks428 decks
4%synergy
Flawless Maneuver
5.1%inclusion22 decks428 decks
-7%synergy
Permission Denied
5.1%inclusion22 decks428 decks
4%synergy
Sorceries
Alrund's Epiphany
37%inclusion158 decks428 decks
36%synergy
Enter the Infinite
33%inclusion141 decks428 decks
32%synergy
Ponder
32%inclusion137 decks428 decks
16%synergy
Approach of the Second Sun
30%inclusion130 decks428 decks
26%synergy
Fury of the Horde
30%inclusion130 decks428 decks
30%synergy
Capture of Jingzhou
29%inclusion125 decks428 decks
28%synergy
Aminatou's Augury
28%inclusion120 decks428 decks
27%synergy
Rise of the Eldrazi
28%inclusion119 decks428 decks
27%synergy
World at War
24%inclusion104 decks428 decks
22%synergy
Jeska's Will
24%inclusion101 decks428 decks
9%synergy
Full Throttle
23%inclusion97 decks414 decks
21%synergy
Waves of Aggression
22%inclusion94 decks428 decks
21%synergy
Supreme Verdict
21%inclusion89 decks428 decks
7%synergy
Personal Tutor
20%inclusion85 decks428 decks
18%synergy
Armageddon
19%inclusion81 decks428 decks
18%synergy
Preordain
18%inclusion79 decks428 decks
5%synergy
Storm Herd
18%inclusion75 decks428 decks
17%synergy
Mind's Desire
18%inclusion75 decks428 decks
17%synergy
Divine Reckoning
17%inclusion74 decks428 decks
16%synergy
Sea Gate Restoration
14%inclusion59 decks428 decks
11%synergy
Overpowering Attack
14%inclusion58 decks428 decks
12%synergy
Windfall
13%inclusion57 decks428 decks
3%synergy
Mnemonic Deluge
13%inclusion56 decks428 decks
13%synergy
Farewell
11%inclusion49 decks428 decks
-4%synergy
Gamble
11%inclusion47 decks428 decks
4%synergy
Blasphemous Act
11%inclusion47 decks428 decks
-12%synergy
Wrath of God
10%inclusion44 decks428 decks
7%synergy
Time Wipe
10%inclusion44 decks428 decks
4%synergy
Single Combat
10%inclusion42 decks428 decks
8%synergy
Call Forth the Tempest
9.1%inclusion39 decks428 decks
8%synergy
Urza's Ruinous Blast
9.1%inclusion39 decks428 decks
6%synergy
Vandalblast
8.6%inclusion37 decks428 decks
0%synergy
Fabricate
8.2%inclusion35 decks428 decks
1%synergy
Howl of the Horde
8.2%inclusion35 decks428 decks
8%synergy
Austere Command
7.9%inclusion34 decks428 decks
-4%synergy
Inspired Ultimatum
7.9%inclusion34 decks428 decks
7%synergy
Cataclysm
7.9%inclusion34 decks428 decks
8%synergy
Response // Resurgence
7.5%inclusion32 decks428 decks
7%synergy
Promise of Loyalty
7.2%inclusion31 decks428 decks
4%synergy
Slash the Ranks
7.0%inclusion30 decks428 decks
6%synergy
Catastrophe
6.5%inclusion28 decks428 decks
6%synergy
Serum Visions
6.3%inclusion27 decks428 decks
2%synergy
Rite of Flame
5.8%inclusion25 decks428 decks
3%synergy
Emeria's Call
5.8%inclusion25 decks428 decks
5%synergy
Sundering Eruption
5.8%inclusion25 decks428 decks
3%synergy
Stitch in Time
5.6%inclusion24 decks428 decks
5%synergy
Dream Cache
5.4%inclusion23 decks428 decks
5%synergy
Treasure Cruise
5.4%inclusion23 decks428 decks
3%synergy
Blatant Thievery
5.1%inclusion22 decks428 decks
4%synergy
Utility Artifacts
Strionic Resonator
37%inclusion159 decks428 decks
35%synergy
Sensei's Divining Top
32%inclusion136 decks428 decks
26%synergy
Swiftfoot Boots
27%inclusion116 decks428 decks
3%synergy
Mithril Coat
20%inclusion84 decks428 decks
14%synergy
The One Ring
16%inclusion69 decks428 decks
8%synergy
Helm of the Host
13%inclusion56 decks428 decks
8%synergy
Sword of Feast and Famine
13%inclusion54 decks428 decks
8%synergy
Ichormoon Gauntlet
11%inclusion47 decks428 decks
8%synergy
The Chain Veil
10%inclusion43 decks428 decks
7%synergy
Whispersilk Cloak
8.9%inclusion38 decks428 decks
6%synergy
Lithoform Engine
8.2%inclusion35 decks428 decks
7%synergy
Wayfarer's Bauble
8.2%inclusion35 decks428 decks
-4%synergy
Darksteel Plate
7.2%inclusion31 decks428 decks
6%synergy
Expedition Map
6.5%inclusion28 decks428 decks
6%synergy
Torpor Orb
6.3%inclusion27 decks428 decks
6%synergy
Hammer of Nazahn
5.8%inclusion25 decks428 decks
1%synergy
Portal to Phyrexia
5.6%inclusion24 decks428 decks
5%synergy
Lavaspur Boots
5.4%inclusion23 decks428 decks
4%synergy
Proteus Staff
5.4%inclusion23 decks428 decks
5%synergy
Enchantments
Aqueous Form
39%inclusion167 decks428 decks
35%synergy
Whirlwind of Thought
33%inclusion141 decks428 decks
8%synergy
One with the Multiverse
32%inclusion138 decks428 decks
31%synergy
Propaganda
26%inclusion110 decks428 decks
14%synergy
Thousand-Year Storm
25%inclusion109 decks428 decks
22%synergy
Mystic Remora
25%inclusion107 decks428 decks
13%synergy
Eldrazi Conscription
23%inclusion99 decks428 decks
22%synergy
Steel of the Godhead
23%inclusion98 decks428 decks
21%synergy
Ghostly Prison
22%inclusion96 decks428 decks
11%synergy
Swarm Intelligence
21%inclusion90 decks428 decks
20%synergy
Shark Typhoon
19%inclusion83 decks428 decks
15%synergy
Aggravated Assault
18%inclusion78 decks428 decks
16%synergy
Windcrag Siege
14%inclusion45 decks330 decks
9%synergy
Passionate Archaeologist
13%inclusion57 decks428 decks
11%synergy
Reconnaissance
13%inclusion56 decks428 decks
9%synergy
Oath of Teferi
12%inclusion53 decks428 decks
8%synergy
Need for Speed
12%inclusion51 decks428 decks
12%synergy
Jeskai Ascendancy
12%inclusion50 decks428 decks
-4%synergy
Gift of Immortality
11%inclusion46 decks428 decks
10%synergy
Spirit Mantle
9.3%inclusion40 decks428 decks
8%synergy
Leyline of Anticipation
9.1%inclusion39 decks428 decks
7%synergy
Underworld Breach
8.4%inclusion36 decks428 decks
3%synergy
Mass Hysteria
7.7%inclusion33 decks428 decks
7%synergy
Rising of the Day
7.2%inclusion31 decks428 decks
3%synergy
Land Tax
7.0%inclusion30 decks428 decks
3%synergy
Mind's Dilation
6.5%inclusion28 decks428 decks
6%synergy
Inexorable Tide
6.1%inclusion26 decks428 decks
1%synergy
Double Vision
6.1%inclusion26 decks428 decks
5%synergy
Sphere of Safety
5.8%inclusion25 decks428 decks
4%synergy
Fervor
5.8%inclusion25 decks428 decks
5%synergy
Indestructibility
5.8%inclusion25 decks428 decks
5%synergy
Metallurgic Summonings
5.4%inclusion23 decks428 decks
3%synergy
Timely Ward
5.4%inclusion23 decks428 decks
5%synergy
Blind Obedience
5.4%inclusion23 decks428 decks
3%synergy
All That Glitters
5.1%inclusion22 decks428 decks
3%synergy
Oath of Jace
5.1%inclusion22 decks428 decks
4%synergy
Planeswalkers
Teferi, Time Raveler
30%inclusion130 decks428 decks
24%synergy
Narset of the Ancient Way
25%inclusion108 decks428 decks
19%synergy
Jace, the Mind Sculptor
20%inclusion87 decks428 decks
19%synergy
Narset Transcendent
20%inclusion85 decks428 decks
18%synergy
Elspeth, Sun's Champion
19%inclusion83 decks428 decks
11%synergy
Jace, Wielder of Mysteries
19%inclusion81 decks428 decks
17%synergy
Chandra, Torch of Defiance
16%inclusion69 decks428 decks
12%synergy
Teferi, Master of Time
14%inclusion61 decks428 decks
11%synergy
Ral Zarek
13%inclusion57 decks428 decks
12%synergy
Quintorius Kand
13%inclusion57 decks428 decks
11%synergy
Ugin, the Spirit Dragon
11%inclusion49 decks428 decks
10%synergy
The Eternal Wanderer
11%inclusion48 decks428 decks
8%synergy
Teferi, Hero of Dominaria
11%inclusion48 decks428 decks
9%synergy
Saheeli, Sublime Artificer
11%inclusion47 decks428 decks
4%synergy
Teferi, Temporal Archmage
10%inclusion43 decks428 decks
7%synergy
Commodore Guff
9.1%inclusion39 decks428 decks
8%synergy
Chandra, Legacy of Fire
7.9%inclusion34 decks428 decks
4%synergy
Tamiyo, the Moon Sage
7.7%inclusion33 decks428 decks
7%synergy
Venser, the Sojourner
7.5%inclusion32 decks428 decks
6%synergy
Dack Fayden
7.0%inclusion30 decks428 decks
6%synergy
Sarkhan the Masterless
7.0%inclusion30 decks428 decks
5%synergy
Chandra, Awakened Inferno
7.0%inclusion30 decks428 decks
4%synergy
Ajani Steadfast
6.8%inclusion29 decks428 decks
4%synergy
The Wanderer
6.5%inclusion28 decks428 decks
4%synergy
Chandra, Hope's Beacon
6.5%inclusion28 decks428 decks
5%synergy
Ral, Crackling Wit
6.3%inclusion27 decks427 decks
2%synergy
Tezzeret the Seeker
5.8%inclusion25 decks428 decks
3%synergy
Elspeth, Knight-Errant
5.8%inclusion25 decks428 decks
5%synergy
Vronos, Masked Inquisitor
5.6%inclusion24 decks428 decks
3%synergy
Zariel, Archduke of Avernus
5.4%inclusion23 decks428 decks
5%synergy
Teferi, Who Slows the Sunset
5.1%inclusion22 decks428 decks
3%synergy
Ral, Storm Conduit
5.1%inclusion22 decks428 decks
4%synergy
Utility Lands
Rogue's Passage
35%inclusion149 decks428 decks
15%synergy
Reliquary Tower
33%inclusion142 decks428 decks
-1%synergy
Arena of Glory
29%inclusion122 decks428 decks
25%synergy
Hall of the Bandit Lord
28%inclusion121 decks428 decks
28%synergy
Otawara, Soaring City
20%inclusion85 decks428 decks
7%synergy
Urza's Saga
16%inclusion68 decks428 decks
8%synergy
Mistrise Village
15%inclusion51 decks339 decks
7%synergy
Maze of Ith
15%inclusion63 decks428 decks
11%synergy
Command Beacon
11%inclusion49 decks428 decks
9%synergy
Slayers' Stronghold
11%inclusion48 decks428 decks
9%synergy
Mystic Sanctuary
11%inclusion46 decks428 decks
5%synergy
Crystal Vein
10%inclusion42 decks428 decks
9%synergy
Temple of the False God
9.3%inclusion40 decks428 decks
3%synergy
Karn's Bastion
5.8%inclusion25 decks428 decks
-6%synergy
Access Tunnel
5.4%inclusion23 decks428 decks
5%synergy
Hanweir Battlements
5.4%inclusion23 decks428 decks
5%synergy
Interplanar Beacon
5.1%inclusion22 decks428 decks
2%synergy
Rivendell
5.1%inclusion22 decks428 decks
3%synergy
Eiganjo, Seat of the Empire
5.1%inclusion22 decks428 decks
0%synergy
Mana Artifacts
Sol Ring
97%inclusion417 decks428 decks
8%synergy
Arcane Signet
88%inclusion375 decks428 decks
-1%synergy
Talisman of Creativity
64%inclusion272 decks428 decks
20%synergy
Izzet Signet
58%inclusion250 decks428 decks
25%synergy
Talisman of Progress
56%inclusion240 decks428 decks
10%synergy
Talisman of Conviction
55%inclusion236 decks428 decks
10%synergy
Azorius Signet
55%inclusion236 decks428 decks
22%synergy
Fellwar Stone
52%inclusion224 decks428 decks
20%synergy
Boros Signet
50%inclusion215 decks428 decks
20%synergy
Lotus Petal
30%inclusion129 decks428 decks
23%synergy
Chrome Mox
25%inclusion108 decks428 decks
20%synergy
Mind Stone
24%inclusion104 decks428 decks
11%synergy
Thought Vessel
24%inclusion103 decks428 decks
0%synergy
Chromatic Lantern
24%inclusion103 decks428 decks
14%synergy
Commander's Sphere
21%inclusion88 decks428 decks
7%synergy
Mox Opal
16%inclusion68 decks428 decks
10%synergy
Thran Dynamo
15%inclusion66 decks428 decks
13%synergy
Grim Monolith
12%inclusion52 decks428 decks
10%synergy
Mox Diamond
11%inclusion46 decks428 decks
7%synergy
Basalt Monolith
11%inclusion46 decks428 decks
9%synergy
Gilded Lotus
10%inclusion43 decks428 decks
8%synergy
Coalition Relic
7.5%inclusion32 decks428 decks
6%synergy
Worn Powerstone
7.2%inclusion31 decks428 decks
6%synergy
Lion's Eye Diamond
5.4%inclusion23 decks428 decks
2%synergy
Lands
Island
94%inclusion403 decks428 decks
-2%synergy
Plains
93%inclusion397 decks428 decks
-2%synergy
Mountain
92%inclusion395 decks428 decks
-2%synergy
Command Tower
92%inclusion392 decks428 decks
-1%synergy
Hallowed Fountain
64%inclusion274 decks428 decks
23%synergy
Steam Vents
64%inclusion273 decks428 decks
24%synergy
Sacred Foundry
61%inclusion262 decks428 decks
21%synergy
Flooded Strand
54%inclusion229 decks428 decks
24%synergy
Scalding Tarn
50%inclusion216 decks428 decks
23%synergy
Exotic Orchard
50%inclusion213 decks428 decks
-12%synergy
Arid Mesa
49%inclusion209 decks428 decks
21%synergy
Raugrin Triome
46%inclusion197 decks428 decks
9%synergy
Mystic Monastery
43%inclusion184 decks428 decks
-16%synergy
Shivan Reef
42%inclusion178 decks428 decks
1%synergy
Sulfur Falls
41%inclusion177 decks428 decks
-10%synergy
Training Center
40%inclusion172 decks428 decks
8%synergy
Glacial Fortress
40%inclusion170 decks428 decks
-13%synergy
Sea of Clouds
38%inclusion164 decks428 decks
7%synergy
Battlefield Forge
36%inclusion155 decks428 decks
-5%synergy
Spectator Seating
35%inclusion150 decks428 decks
5%synergy
Clifftop Retreat
35%inclusion150 decks428 decks
-15%synergy
Adarkar Wastes
32%inclusion135 decks428 decks
-3%synergy
Cavern of Souls
30%inclusion130 decks428 decks
26%synergy
Prairie Stream
27%inclusion115 decks428 decks
-13%synergy
City of Brass
27%inclusion115 decks428 decks
18%synergy
Mana Confluence
25%inclusion108 decks428 decks
17%synergy
Plateau
25%inclusion106 decks428 decks
13%synergy
Volcanic Island
24%inclusion104 decks428 decks
13%synergy
Tundra
24%inclusion103 decks428 decks
13%synergy
Cascade Bluffs
22%inclusion96 decks428 decks
0%synergy
Polluted Delta
22%inclusion94 decks428 decks
15%synergy
Temple of Epiphany
21%inclusion88 decks428 decks
-7%synergy
Rugged Prairie
19%inclusion82 decks428 decks
-2%synergy
Temple of Enlightenment
19%inclusion81 decks428 decks
-8%synergy
Temple of Triumph
18%inclusion78 decks428 decks
-6%synergy
Misty Rainforest
18%inclusion76 decks428 decks
11%synergy
Deserted Beach
18%inclusion75 decks428 decks
-5%synergy
Stormcarved Coast
17%inclusion74 decks428 decks
-6%synergy
Evolving Wilds
17%inclusion73 decks428 decks
-10%synergy
Mystic Gate
17%inclusion72 decks428 decks
4%synergy
Bloodstained Mire
16%inclusion69 decks428 decks
10%synergy
Windswept Heath
16%inclusion69 decks428 decks
10%synergy
Wooded Foothills
16%inclusion68 decks428 decks
10%synergy
Sundown Pass
14%inclusion62 decks428 decks
-5%synergy
Sink into Stupor
14%inclusion62 decks428 decks
5%synergy
Riverglide Pathway
14%inclusion60 decks428 decks
8%synergy
Sea Gate Restoration
14%inclusion59 decks428 decks
11%synergy
Gemstone Caverns
14%inclusion59 decks428 decks
10%synergy
Terramorphic Expanse
13%inclusion56 decks428 decks
-5%synergy
Reflecting Pool
13%inclusion56 decks428 decks
7%synergy