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For the Fel from the Warcraft film universe, see Fel (film universe).
Shadow Council HS

Orc warlocks wielding the powers of demonic magic.

“Wielding fel magic is like fixing a machine - you have to break a few things to get it to work.”

Bizzik Sparkcog

Fel magic (also called chaos magic,[1] demonic magic[2][3], sacrificial magic,[4] chaos energy or chaotic energy)[5] is a destructive form of magic used by demons and members of the Burning Legion, and often by warlocks and demon hunters among the mortal races. It is the manifestation of Disorder in the Great Dark Beyond and the Twisting Nether. It is demonic, entropic, chaotic, and extremely volatile. Its use by the wielder, or its effects on the victim, frequently results in an alteration of the individual, colloquially called corruption. All members of the Burning Legion carry the taint of fel magic within their very blood, allowing them to spread greater evil.[6] As fel is the language of chaos and disorder, it is the opposite end of the spectrum from arcane, which represents order.[7][8]

Origins and characteristics[]

“Sacrificial magic was considered the greatest violation of life and we were attuned to instantly punish those who delved into such... delicious sorcery.”

— A Doomguard to Kanrethad Ebonlocke[4]
Warlock Training TCG

A human warlock learning the secrets of fel magic.

Chronicle2 Hand of Gul'dan

Gul'dan raising a fel volcano as he destroys Draenor's connection to the elements.

While Order is most commonly perceived in reality as arcane magic, on the other hand, Disorder manifests as highly destructive fel magic, a destructive and extremely addictive energy originating as a result of the mutual destruction of Light and Void as they collide on a cosmic scale in the Twisting Nether.[9] Fel is fueled by drawing life from living beings and consuming their souls, utterly destroying them in the process.[9] It requires but an insignificant sacrifice—a living fish or two, a few strands of seaweed—to fuel the magic.[10]

Khadgar vs Gul'dan

The confrontation between Archmage Khadgar and Gul'dan, a battle of arcane and fel magics.

Fel energy counters and is countered by arcane energy, it's polar opposite.[11] Consequently, Titans are naturally vulnerable to fel magic. When Sargeras was infused and deformed by the explosion of fel energy caused by the shattering of Mardum, the Pantheon could not overcome Sargeras's fel-fueled might. The fallen titan decimated the Pantheon members by summoning a massive fel storm that would consume their bodies.[12]

Fel works like radiation, permeating an area and seeping into anything in the vicinity. Anything near a source of fel energy will eventually show signs of slight corruption.[13] It smells like sulfur and brimstone.[14] Fel can also pool into a green goop when it's in physical form.[15] Pit lord blood is literal fel goo. When drunk, their blood causes mutations such as the growth of spikes, horns, scales, and wings. Felfire is a flame born of fel magic.[16][17] It is deadly to the touch,[18] burns much hotter than normal fire,[19] and cannot be put out by regular means,[20] though the water of enchanted water elementals seems to be able to do the trick.[21] A scalding core of fel fire is what powers the fel reavers of the Legion.[22]

All demon blood contains tremendous fel power,[23] it is used to make powerful fel inks,[24] demonic sigils,[25] and is highly valued for demon hunter rituals.[26] Pure fel energy can manifest as entropic elementals, which essence can poison living beings with a sickness that drains life.[27]

When a soul is devoured by fel energies, it produces more fel and is utterly destroyed in the process.[28] Powerful demonic rituals often call for the intact skull of a pure soul and the blood of the truly innocent.[29][30] Jailers are demons that carry fel cages on their backs and use them to capture both the soul and body of their enemy, which they then send to the Twisting Nether to subject their victims to horrific torture and interrogation.[31]


Stub Please add any available information to this section.

...fel energies: the dark magic of demons, all corrupting and all-consuming if the craving for it was not held in check.[32]
Demonic Assault HS

Demonic Assault in Hearthstone.

Fel magic is mainly used to cause massive destruction by its wielders,[33] notably through devastating blast of chaos and rains of hellfire. Fel can be used as an aura, to temporarily turn into a demon, curse, fear, and drain the life of foes. It can also be used tosummon, banish or subjugate demons. It can also be used to give momentum and propel a boat,[34] to turn oneself invisible,[34] to scry,[35] and to create portals and gateways much more efficient, long-lasting and easier to create than with arcane magic.[33] Fel can also be used to heal, though it leaves a mark on creatures who are not fel-based.[36]

Lesser warlocks must use soul shards to summon minor demons. Soul shards can be used to power spells, or to create a connection to the Twisting Nether, pulling a demon through against its will.[37]

Like all other types of magic, it can be animated,[38] such as the Flames of Azzinoth. It can also be used to power the monstrous machines of the Burning Legion,[39] notably to breathe life into constructs such as infernals, or in a necromantic way by resurrecting demons as undead.[40][41] Devastators and Fel cannons are siege weapons infused with fel energy, while fel reavers are powered with "felfire".[42]

Some druids have manipulated fel energy to enhance their attunement with the wild.[43]

Effects on beings[]

Drink, Hellscream. Claim your destiny. You will all be conquerors.”

Grommash Mercenaries 3

Grommash Hellscream corrupted into a fel orc.


A warlock transforming because of fel energy.

Vol'jin poisoned by fel

Warchief Vol'jin suffering from fel poisoning.

Infusion with fel magic, also called fel corruption, can manifest through physical transformation normally ensues, such as a change to an individual's eyes or skin color, or heavy genetic mutations such as the growth of demonic traits like spikes, scales, and horns.[44] Negative corruption tends to lead to physical or mental deterioration, as happened with the draenei that turned into Broken and Lost Ones, or as happened with boars turned into enraged hellboars.

Either way, corruption gives the individual increased strength, more magical potential, and can lead to transformation into a demon. Fel seems to tend to cloud one's judgment, or at least heavily amplify their negative traits such as violence and impatience while snuffing out positive ones such as empathy, allowing one to make decisions they never would've made before. When the human Malus took Xaraax's fel sword, it empowered and transformed him, his eyes blazed green with corruption, and he stated that the fel flames whisper to him of victory and destruction.[45]

Fel energy can also be used as a deadly poison, slowly consuming the victim to death. The Warchief Vol'jin notably died of fel poisoning after being injured by a mortal blow from a felguard's spear.[46]

When the Eternal One Denathrius tasked the nathrezim to spread the influence of Death in the realms of the other cosmic forces, they had to consume fel energy, an unpleasant but necessary process to become demons, in order to infiltrate the plane of Disorder,[47][48] and later the Burning Legion.

As the existence of non-sentient demons suggests, a creature's wishes are irrelevant to the process. Willing or not, a creature can be changed into a demon.[49] The chaos magics of the eredar warlocks have burnt out whole worlds and annihilated countless species over the eons,[1] turning indigenous races into demons.[50] During the third invasion of the Burning Legion, many species were corrupted with fel magic, including dragons, harpies, murlocs, arakkoa, hounds, wolves, boars,[51] and so on. The void revenant Xhul'horac was twisted and fed overwhelming fel energy by alternate Gul'dan, as he wanted to use his powers to tear open the portals through which he planned to rally the forces of the Burning Legion.[52]

During the third invasion of the Burning Legion, the Felsworn were mortals who swore fealty to the Burning Legion, and in return, were gifted with fel power.

The demon hunter Illidan Stormrage now bleeds green blood.[53]


Kiljaeden Sunwell

Kil'jaeden, Supreme commander of the Legion.

“The warlock's way was quicker, more effective, or so it seemed. But there comes a time when a price must be paid, and sometimes, it is dear indeed.”

Grommash Hellscream to Thrall[54]


All demons carry the taint of fel magic within their very blood, allowing them to spread greater evil.[6] They are immortal beings who feed upon magic and life, and delight in inflicting suffering, spreading corruption, and destroying all that is good. Their souls are tethered to the Twisting Nether and as such, even if a demon dies in the physical universe, their spirit will return to the Nether where they will reform once again. To truly destroy a demon, the creature must be killed in the Nether itself, in places where it bleeds into mortal worlds, or in areas saturated with fel energies.[55] Demons normally delight in inflicting suffering, spreading corruption, and destroying all that is good. Mortal beings can be turned into demons themselves by being infused with fel energy.[49]


Gul'dan Chronicle

Gul'dan, Master of the Shadow Council.

Warlocks are magical practitioners that seek to understand darker, fel-based magic, and its destructive spells. While many warlocks willingly follow the Burning Legion, there are those who work against it, using their magic to fight against evil. They delight in using fel forces to cause intense pain and suffering in others, and revel in corrupting minds and agonizing souls, leaving enemies in a state of torment that would see them undone in due time. Even the most battle-hardened warriors can be deceived, landing blow after blow against the warlock, only to succumb to their suffering as their very vitality is siphoned away by the dark spellcaster.[56] Warlocks have proven themselves to be powerful allies-as well as powerful foes.[6] Warlocks convert life into fel, draining the victim as a source of power.

On Azeroth, the Magocracy of Dalaran attempts to stifle the studies of fel magic. Despite the superior power of fel magic which threatened to overshadow established practices, students were taught about practicality over what is achievable. Fel's efficiency is commonly balked for being unstable and "evil".[33] The official teachings of the Kirin Tor are that demonology is to be eschewed, avoided, and abjured. Any attempt to summon demons are to be found out and stopped at once, and those involved are to be expelled, or worse.[57] However, when mages gave up the arcane to begin a personal quest to understand demons and their fel energies, like Daio the Decrepit, they effectively became warlocks. Some warlocks are also named fel magus such as Fel Magus Verondis and Fel Magus Kel'rothek.

Even if they are still considered as pariahs, operating in the shadows of polite society, they start to be respected by the Alliance and the Horde on the battlefronts.[58] During the third invasion of the Burning Legion, the warlocks of Azeroth have joined forces and efforts in recent years to form the Council of the Black Harvest and have taken over the Legion world of Dreadscar Rift.

Demon hunters[]

The Demon hunters, disciples of Illidan Stormrage, uphold a dark legacy, one that frightens their allies and enemies alike. The Illidari embrace fel and chaotic magics—energies that have long threatened the world of Azeroth—believing them necessary to challenge the Burning Legion. Wielding the powers of demons they've slain, they develop demonic features that incite revulsion and dread in fellow elves. The fel energy that flows within demon hunters, empowers their physical and magical strikes to devastating effect, while they can command chaotic energies to inflict havoc on enemies.[59] Demon hunters mark their bodies with arcane runes to keep their fel forces in check.[60]


Legion expansion illustration Alex Garner

Illidan Stormrage, Lord of the Illidari.

When the Sunwell was destroyed, the blood elf magisters rebuilt Silvermoon City using demonic energies; living in proximity and absorbing its energies gave many blood elves fel-green eyes,[61] and they subsequently become addicted to the fel energies.[62] For remaining in Outland, Kael'thas Sunstrider's most loyal followers were rewarded by Kil'jaeden with the gift of being allowed to gorge themselves on demonic blood for days, even as many of his blood elves retreated through the Dark Portal, and became Felblood elves.

Satyrs have been transformed into their current shapes by inheriting the demonic curse that originated with Xavius.[63]


13,000 years ago,[64] Sargeras shattered the tranquility of Argus by offering the eredar immeasurable knowledge and power.[65] When Kil'jaeden and Archimonde of the Triumvirate accepted his offer, the Dark Titan infused the eredar with fel energy, turning them into demons called Man'ari eredar, while some became wrathguards. The eredar settled in as commanders within the Burning Legion, and under their leadership, the ranks of the Burning Legion swelled with new demonic races, gathered from the Twisting Nether and the worlds of the Great Dark Beyond.[66]

On Draenor, the Old Horde brought the Red mist upon the draenei, causing them to mutate and devolve into the Broken and then further into Lost Ones. Their warped bodies bear only a rough resemblance to the proud draenei they once were, and quite a few have lost their grip on sanity.[67]


Under the tutelage of Kil'jaeden, Gul'dan was the first orc warlock and is considered one of the most powerful mortal warlocks to have ever existed. He taught other young orcs the dark arts and strove to eradicate the orcs' shamanistic traditions. His master, seeking to tighten his hold over the orcs, helped Gul'dan found the Shadow Council, a secretive sect that manipulated the clans and spread the use of fel magic throughout Draenor. As more and more orcs began to wield warlock magics, the gentle fields and streams of Draenor began to blacken and fade.[2]

From every account, the demonic energies, used so freely and with no heed given as to their cost, leeched all that was wholesome and life-giving from the world of Draenor.[68] The originally brown orcs changed from under the influence of Mannoroth's blood, their skin became various shades of green and they began experiencing lusts for blood. Those who kept drinking pit lord blood became fel orcs.

In the RPG[]

Icon-RPG This section contains information from the Warcraft RPG which is considered non-canon.
The Path to Corruption by Twincruiser

"The Path to Corruption" in Warcraft: The Roleplaying Game.

The ultimate manifestation of the demonic arcane on Azeroth is fel energy. Fel energy, which most commonly manifests itself as ghastly, green-yellow flame, is arcane magic at its most corrupt, for it employs the blood of demons.[69] Unlike arcane magic the use of fel magic corrupts the user's body and soul. By contrast, the chief danger of arcane magic is that using it inevitably leads to the desire to wield greater power: power that only fel magic can provide.[70] When the demons brought death and damnation to Azeroth, they also carried their own brand of magic to the world. Fel magic is pure, evil, and arcane; it resides in the blood of demons. This blood has magical properties; it is addictive to arcane magic users and can be used to create evil weapons. When a weapon is forged in demon blood, it becomes a fel weapon. It glows with a foul, yellow-green fire and deals extra damage to good-aligned opponents. Some arcanists can cast fel spells, perhaps after drinking demon blood.[71] Since the Burning Legion returned to Azeroth, the world's heroes have encountered fel weapons and fel magic at an increasing frequency. As demon cults continue to fester and grow in Desolace, Ashenvale Forest, and other remote corners, gruesome sacrifices are held to entice demons into giving their blood in trade. The cultists use their blood to enchant the weapons that they hope will bring about their masters' ultimate victory.[69]

Chaos energy is highly dangerous; some believe it actually is equivalent to arcane magic, although it can be harnessed by tinkers. Thought at first to be magical, as it can sometimes mimic the effects of arcane magic, chaos energy is purely mechanical in nature. Chaos energy is generated through the use of devices called chaos generators. A small box contains magnets, several differing kinds of metal, steam energy, and a tiny golden core that vibrates at a high frequency when powered. Political maneuverings by wizards in Theramore have caused the ruling body to declare chaos generators unlawful, but the goblins and some gnomes still manage to research and develop new uses for chaos energy. The Horde hasn't outlawed the usage yet, as it is not arcane magic, but they are suspicious of it because of the similarities.[72]

Demons sometimes tempt spellcasters by offering small amounts of their blood in exchange for services. If the recipient drinks the demon's blood within 24 hours of the offering, the next arcane spell he casts will be empowered by the fel. Fel blood is highly addictive as well as corruptive. Anyone who drinks it risks becoming dependent on fel blood, and unless the person continues to drink it daily, he will suffer withdrawal symptoms. He has a chance of breaking the addiction seven days after first drinking the fel blood.[69]

Entropic fire is fel energy given substance: it is entropic fire that burns on infernals, and it is entropic fire that ran down the body of the pit lord Mannoroth the Destructor. Entropic fire burns, as does normal fire, but it is more sinister still: it feeds on life, including the life of its wielder.[73] A gray ore known as fel stone litters the physical spaces of the Nether. It functions as a conduit for the Nether's entropic energies.[74]

Notes and trivia[]


Patch 6.2 style guide showing fel energy's behaviors and effects.


Trading Card Game

See also[]


  1. ^ a b Warcraft III: Reign of Chaos manual#Warlock
  2. ^ a b Kil'jaeden and the Shadow Pact
  3. ^ Stormrage, chapter 10
  4. ^ a b Seeking the Soulstones#Blade's Edge Memory
  5. ^ Muffinus on Twitter (2015-07-10).​ “There's nature magic, like druids use, and light magic, like priests/pallies use. Blood was tortured life. Fel is Chaos.”
  6. ^ a b c Ultimate Visual Guide, pg. 21
  7. ^ Dave Kosak on Twitter (2015-11-10): "Fel isn't death magic. It's the language of chaos, though, so it's pretty nasty stuff :)"
  8. ^ Dave Kosak on Twitter (2015-12-03): "Fel is language of chaos, arcane is language of order. Same spectrum, opposite ends!"
  9. ^ a b World of Warcraft: Chronicle Volume 1
  10. ^ The Comic Volume 4 - Whispers: "Let me help you fight that monster...for fel magic is powerful...and we are near the sea. It requires but an insignificant sacrifice—a living fish or two, a few strands of seaweed—to fuel the magic."
  11. ^ N Inscription [10-45] Opposites Repel
  12. ^ World of Warcraft: Chronicle Volume 1, pg. 97-99 on e-book
  13. ^ Ask CDev Answers: Round 3
  14. ^ Well of Eternity dungeon: Illidan Stormrage says: The stench of sulfur and brimstone. These portals are as foul as the demons themselves.
  15. ^ Dave Kosak on Twitter: "Fel is the primal force of chaos. It can pool into a green goop when it's in physical form."
  16. ^ Fel Flame
  17. ^ H [7-30] Rain of Destruction
  18. ^ Mount Journal entry for Inv misc summerfest braziergreen [Felfire Hawk]
  19. ^ B [70G3] Hotter than Hell
  20. ^ The Tomb of Sargeras
  21. ^ N [110] Fire!
  22. ^ B [70G3] Hotter than Hell
  23. ^ H [10-30] In Need of Felblood
  24. ^ Trade alchemy potiond6 [Vial of Felsoul Blood]
  25. ^ N Paladin [10-45] Blood of Our Enemy
  26. ^ N [10-45] Blood On Your Hands
  27. ^ N [15-30] Collecting Corruption
  28. ^ Soul engine
  29. ^ Inv misc bone humanskull 02 [Skull of the Innocent]
  30. ^ Ability ironmaidens corruptedblood [Blood of the Innocent]
  31. ^ N Demon hunter [8-45] Set Them Free
  32. ^ Blood of the Highborne, chapter 4
  33. ^ a b c Journal of Archmage Antonidas
  34. ^ a b The Tomb of Sargeras
  35. ^ File:Meryl using fel energy for scrying.jpg
  36. ^ Alex Afrasiabi on Twitter (2016-12-12).​ “definitely. If you're a fel-based creature. Otherwise, it's going to leave a mark.”
  37. ^ A [10-40] Soul Shards of Summoning
  38. ^ Animated Fel
  39. ^ Legion ship
  40. ^ Mannoroth (tactics)#Adventure Guide
  41. ^ Jeremy Feasel on Twitter (2015-06-18). "Well, yes, Mannoroth is an undead demon. Demons know how to raise undead, and he was a demon previously."
  42. ^ A [70G3] Hotter than Hell
  43. ^ Inv misc ring mop13 [Impeccable Fel Essence]
  44. ^ The Maker
  45. ^ Traveler: The Shining Blade
  46. ^ H [50] Where He Fell
  47. ^ Enemy Infiltration - Preface
  48. ^ World of Warcraft: Grimoire of the Shadowlands and Beyond, pg. 137
  49. ^ a b The Warcraft Encyclopedia/Demons
  50. ^ Warcraft III: Reign of Chaos manual#Sargeras and the Betrayal
  51. ^ N [10-30] Testing the Antidote
  52. ^ Xhul'horac#Adventure Guide
  53. ^ N [45] The Child of Light and Shadow
  54. ^ Lord of the Clans, chapter 11
  55. ^ World of Warcraft: Chronicle Volume 1, pg. 23
  56. ^ Legion Class Preview Series: Warlock
  57. ^ The Last Guardian, pg. 230
  58. ^ Visiting Warlock#Quotes
  59. ^ "Official Demon Hunter"
  60. ^ N Inscription [10-45] Opposites Repel
  61. ^ Ask CDev Answers - Round 3
  62. ^ Stormrage, pg. 292
  63. ^ The Warcraft Encyclopedia/Satyrs
  64. ^ N [10-45] Bringer of the Light
  65. ^ Ultimate Visual Guide, pg. 39
  66. ^ World of Warcraft: Chronicle Volume 1 pg. 102-103 on e-book
  67. ^ The Burning Crusade Townhall/Draenei
  68. ^ Rise of the Horde, pg. 498
  69. ^ a b c Magic & Mayhem, pg. 24
  70. ^ Dark Factions, pg. 37
  71. ^ World of Warcraft: The Roleplaying Game, pg. 252
  72. ^ More Magic and Mayhem, 182
  73. ^ Dark Factions, pg. 37
  74. ^ Shadows & Light, pg. 154
  75. ^ Dreadsteed#Mount Journal
  76. ^ Code of Rule
  77. ^ Cycle of Hatred, chapter 15
  78. ^ N [45] The Burning Birds
  79. ^ N Paladin [45] Lumenstone
  80. ^ N Priest [45] Lumenstone
  81. ^ Rehgar Earthfury to Thrall in Thrall: Twilight of the Aspects
  82. ^ Zhahara Darksquall in Pearl of Pandaria
  83. ^ Vol'jin: Shadows of the Horde, chapter 2, pg. 18
  84. ^ Vol'jin: Shadows of the Horde, chapter 9, pg. 82
  85. ^ Setesh Dungeon Journal
  86. ^ Trade archaeology staff of ammunrae [Staff of Ammunae]
  87. ^ Matt Burns on Twitter (2015-10-26).​ “In that case specifically, seems like it's more about the word choice--'hell fire' being a general term for that power.”