History Monster / Diablo

* [[SatanicArchetype Al'Diabolos]], better known as [[AntagonistTitle Diablo]], is known as [[TheDreaded the Lord of Terror]]. Before the events of the first game, Diablo fought alongside his brothers, Mephisto and Baal, against Angiris Council in the Eternal Conflict, at times [[ItsAllAboutMe even fighting his own brothers to gain more power for himself]]. With the discovery of Sanctuary, Diablo sought to [[TheCorrupter corrupt]] humanity to his will, deliberately [[TheChessmaster engineering]] his and his brothers' own exile from hell into Sanctuary so they could corrupt humanity. Though this plan failed due to the intervention of the Horadim, Diablo's essence possessed King Leoric of Tristram 200 years after his imprisonment and later [[DemonicPossession took possession]] of Prince Albrecht once he deemed Albrecht a suitable host. Though defeated by Albrecht's brother, Prince Aiden, Diablo corrupts Prince Aiden into the [[DemonicPossession Dark Wanderer]] when the latter sought to contain Diablo's soulstone within himself, and procreated Leah with Adria as a means to [[BodyBackupDrive revive himself should he be slain again]]. As the Dark Wanderer, Diablo destroyed Tristram with a horde of Demons and sought to free his brothers and unleash them into Sanctuary in order to corrupt the Worldstone and subsequently humanity, manipulating Marius into helping him free Baal. Though defeated and seemingly banished to the black abyss, Diablo reemerged 20 years later due to Adria's manipulations of another group of adventurers to empower the Black Soulstone and restore Diablo into Sanctuary into a form combining the power and essence of all the Great Evils. Ultimately, Adria's manipulations succeeded at restoring Diablo at the cost of Leah's life, and he ascended to the High Heavens to destroy the Angris Council, causing much destruction before his defeat at the hands of the Nephelim. Driven by a desire to corrupt all of humanity and spread terror across Sanctuary, Diablo stands out as the vilest of the Prime Evils.

* ''VideoGame/DiabloIV'': [[{{Pyromaniac}} Astaroth, the Charred Duke]], is a demon servitor of Mephisto whose actions are still remembered in infamy. Arriving in Scosglen in years past, Astaroth brought about the "Days of Ash" where he [[RapePillageAndBurn rampaged across Scosglen]]. Torturing and murdering everything he found, Astaroth annihilated entire villages and [[AndIMustScream condemned the souls of some victims to eternal agony]] before being defeated and contained. Upon being granted freedom by [[DemonicPossession possessing]] his jailer Donan's son, Astaroth gleefully massacres an entire populated area before mocking Donan how his son suffered under Astaroth's possession.

%% NOTE 2: A CompleteMonster is an individual character, not a collective. Therefore a faction cannot be listed as one. %% A faction can attract Complete Monsters and can have them among its members, but cannot be one in and of itself.

-->-- '''[[{{Mephistopheles}} Dul'Mephistos (Mephisto)]]''', ''VideoGame/DiabloII'', "The Harrowing"

* ''Diablo'' & ''VideoGame/DiabloIII'': [[SinisterMinister Archbishop Lazarus]] becoming a devoted servant of Diablo in Tristram, seeks to bring out the Dark Lord into the real world. Helping Diablo to possess King Leoric, wiping out Leoric's morality and [[TheCorrupter corrupting him into a tyrant]], [[TreacherousAdviser Lazarus plays the devil in his ear]], swaying him into atrocities and even having him start a pointless war that leaves most of his soldiers wiped out by Westmarch. Lazarus then brings the child Prince Albrecht to Diablo to possess, intending on unleashing the Prime Evils to damn and destroy most of Sanctuary, even luring in the well-meaning, would be heroes to the slaughter at the hands of Diablo's monsters beneath Tristram.
* ''VideoGame/DiabloII'' & ''VideoGame/DiabloIII'': [[TheMole Izual]], [[FallenHero former lieutenant of Tyrael]], [[FaceHeelTurn betrayed the High Heavens]] of his own accord, informing the Prime Evils of the Soulstones meant to contain them and how to corrupt them. Helping them to mastermind their exiles to Sanctuary with all the evil that followed, Izual would become a corrupt demon himself, with the assistance of all the mass bloodshed and death the Prime Evils were responsible for, so that Hell would annihilate mankind in a "tide of blood and nightmare" before moving on to the heavens themselves.

* ''[[Literature/DiabloMoonOfTheSpider Moon of the Spider]]'' & ''[[Literature/DiabloTheSinWar The Sin War]]'' trilogy: [[GiantSpider Astrogha]] is a powerful [[OurDemonsAreDifferent demon]], responsible for mass [[HumanSacrifice human sacrifices]] and various other atrocities in the past. Astrogha's proudest accomplishment is the "[[FateWorseThanDeath Children of Astrogha]]"--people possessed by his demons and turned into powerful but blindly murderous creatures--with Astrogha having condemned thousands to this fate. After being released from his prison, Astrogha [[DemonicPossession possesses]] the body of Lord Aldric Jitan before attempting to do the same to Zayl, while sending his servants to destroy the capital and then the entire kingdom of Westmarch to turn it into his new domain.

%% NOTE: Due to the controversial nature of this trope, any changes (additions, removals, edits) should be discussed [[https://tvtropes.org/pmwiki/posts.php?discussion=6vic3f9h1cy5qivsenw8llok here]].

[[AC:Specific Games]]
* ''Diablo'' (primarily): [[SinisterMinister Archbishop Lazarus]] becoming a devoted servant of Diablo in Tristram, seeks to bring out the Dark Lord into the real world. Helping Diablo to possess King Leoric, wiping out Leoric's morality and [[TheCorrupter corrupting him into a tyrant]], [[TreacherousAdviser Lazarus plays the devil in his ear]], swaying him into atrocities and even having him start a pointless war that leaves most of his soldiers wiped out by Westmarch. Lazarus then brings the child Prince Albrecht to Diablo to possess, intending on unleashing the Prime Evils to damn and destroy most of Sanctuary, even luring in the well-meaning, would be heroes to the slaughter at the hands of Diablo's monsters beneath Tristram.

* ''VideoGame/DiabloIII'' & its sourcebooks:

* ''Legacy of Blood'': General Augustus [[NamesToRunAwayFromReallyFast Malevolyn]] shows what kind of man he is by handing a loyal soldier to his witch and mistress Galeona to be [[HumanSacrifice horribly sacrificed to demons]]. Hunting down the armor of his ancestor Bartuc, Warlord of Blood, Malevolyn eventually [[DealWithTheDevil makes a pact with the demon Xazax]], who shows him a ritual to bind demons to his soldiers. Sacrificing the souls of his entire army, Malevolyn has them slaughter a patrol from Lut Gholein before having the city attacked. Despite [[ILied promising them peace]] should he get what he wants, Malevolyn reveals he intends on having Lut Gholein massacred to the last human being before moving on with a demonic army to subjugate or slaughter all before him.
* ''Moon of the Spider'': [[GiantSpider Astrogha]] is a powerful [[OurDemonsAreDifferent demon]], responsible for mass [[HumanSacrifice human sacrifices]] and various other atrocities in the past. Astrogha's proudest accomplishment is the "[[FateWorseThanDeath Children of Astrogha]]"--people possessed by his demons and turned into powerful but blindly murderous creatures--with Astrogha having condemned thousands to this fate. After being released from his prison, Astrogha [[DemonicPossession possesses]] the body of Lord Aldric Jitan before attempting to do the same to Zayl, while sending his servants to destroy the capital and then the entire kingdom of Westmarch to turn it into his new domain.

-->-- '''Mephisto''', ''VideoGame/DiabloII'', "The Harrowing"

* [[SatanicArchetype Al'Diabalos]], better known as [[AntagonistTitle Diablo]], is known as [[TheDreaded the Lord of Terror]]. Before the events of the first game, Diablo fought alongside his brothers, Mephisto and Baal, against Angiris Council in the Eternal Conflict, at times [[ItsAllAboutMe even fighting his own brothers to gain more power for himself]]. With the discovery of Sanctuary, Diablo sought to [[TheCorrupter corrupt]] humanity to his will, deliberately [[TheChessmaster engineering]] his and his brothers' own exile from hell into Sanctuary so they could corrupt humanity. Though this plan failed due to the intervention of the Horadim, Diablo's essence possessed King Leoric of Tristram 200 years after his imprisonment and later [[DemonicPossession took possession]] of Prince Albrecht once he deemed Albrecht a suitable host. Though defeated by Albrecht's brother, Prince Aiden, Diablo corrupts Prince Aiden into the [[DemonicPossession Dark Wanderer]] when the latter sought to contain Diablo's soulstone within himself, and procreated Leah with Adria as a means to [[BodyBackupDrive revive himself should he be slain again]]. As the Dark Wanderer, Diablo destroyed Tristram with a horde of Demons and sought to free his brothers and unleash them into Sanctuary in order to corrupt the Worldstone and subsequently humanity, manipulating Marius into helping him free Baal. Though defeated and seemingly banished to the black abyss, Diablo reemerged 20 years later due to Adria's manipulations of another group of adventurers to empower the Black Soulstone and restore Diablo into Sanctuary into a form combining the power and essence of all the Great Evils. Ultimately, Adria's manipulations succeeded at restoring Diablo at the cost of Leah's life, and he ascended to the High Heavens to destroy the Angris Council, causing much destruction before his defeat at the hands of the Nephelim. Driven by a desire corrupt all of humanity and spread terror across Sanctuary, Diablo stands out as the vilest of the Prime Evils.

* ''VideoGame/DiabloIII'':
** [[WickedWitch Maghda]] is a [[PsychoSupporter devout servant]] of [[ManipulativeBastard Belial, the Lord of Lies]], and the leader of vile demon worshippers known as the Coven. Once a compatriot to Adria, Maghda assumed control of the Coven by poisoning her masters after believing them to be lax in their devotion to the Prime Evils. She devotes the Coven to worship of Belial and appeases her master by torturing and mutilating thousands beneath King Leoric's manor. Tasked to retrieve Tyrael's shattered sword, Maghda forces the local goat men to assault the survivors of New Tristram and leads the slaughter of the village of Wortham to get the pieces. She personally tortures Deckard Cain and Leah to force him to remake the sword, and kidnaps an injured Tyrael to torture him to death as a sacrifice. Ultimately forced to flee east to Caldeum, Maghda provides a distraction for Belial by butchering the city of Alcarnus to lure in the [[PlayerCharacter Nephalem]]. While slain, [[StarterVillain Maghda's atrocities]] set the standard for what horrors the Nephalem would encounter throughout their journey.
** [[WickedWitch Adria]] pledged herself to Diablo's service since first meeting Prince Aidan of Tristran after he imprisoned Diablo's soul within himself and became the Dark Wanderer. Starting off by [[ManOnFire burning alive]] her [[{{Patricide}} own father]], she spent the time between the first and third games gathering up the power of the other Lords of Hell so she could use the Black Soulstone to bring about Diablo's rebirth in [[AbusiveParents the body of her own daughter]], an act that in the setting would damn Leah's soul to hell. Adria manipulated her daughter and all of her friends with the express purpose of inserting the Black Soulstone in her chest and allowing Diablo to devour her from within, manifesting anew to destroy the High Heavens and humanity as the Prime Evil.

* [[SatanicArchetype Al'Diabalos]], better known as [[AntagonistTitle Diablo]], is known as [[TheDreaded the Lord of Terror]]. Before the events of the first game, Diablo fought alongside his brothers, Mephisto and Baal, against Angiris Council in the Eternal Conflict, at times [[ItsAllAboutMe even fighting his own brothers to gain more power for himself]]. With the discovery of Sanctuary, Diablo sought to [[TheCorrupter corrupt]] humanity to his will, deliberately [[TheChessmaster engineering]] his and his brothers' own exile from hell into Sanctuary so they could corrupt humanity. Through this plan failed due to the intervention of the Horadim, Diablo's essence possessed King Leoric of Tristram 200 years after his imprisonment and later [[DemonicPossession took possession]] of Prince Albrecht once he deemed Albrecht a suitable host. Through defeated by Albrecht's brother, Prince Aiden, Diablo corrupts Prince Aiden into the [[DemonicPossession Dark Wanderer]] when the latter sought to contain Diablo's soulstone within himself, and procreated Leah with Adria as a means to [[BodyBackupDrive revive himself should he be slain again]]. As the Dark Wanderer, Diablo destroyed Tristram with a horde of Demons and sought to free his brothers and unleash them into Sanctuary in order to corrupt the Worldstone and subsequently humanity, manipulating Marius into helping him free Baal. Through defeated and seemingly banished to the black abyss, Diablo reemerged 20 years later due to Adria's manipulations of another group of adventurers to empower the Black Soulstone and restore Diablo into Sanctuary into a form combining the power and essence of all the Great Evils. Ultimately, Adria's manipulations succeeded at restoring Diablo at the cost of Leah's life, and he ascended to the High Heavens to destroy the Angris Council, causing much destruction before his defeat at the hands of the Nephelim. Driven by a desire corrupt all of humanity and spread terror across Sanctuary, Diablo stands out as the vilest of the Prime Evils.

* ''Legacy of Blood'': General Augustus [[NamesToRunAwayFromReallyFast Malevolyn]] shows what kind of man he is by handing a loyal soldier to his witch and mistress Galelona to be [[HumanSacrifice horribly sacrificed to demons]]. Hunting down the armor of his ancestor Bartuc, Warlord of Blood, Malevolyn eventually [[DealWithTheDevil makes a pact with the demon Xazax]], who shows him a ritual to bind demons to his soldiers. Sacrificing the souls of his entire army, Malevolyn has them slaughter a patrol from Lut Gholein before having the city attacked. Despite [[ILied promising them peace]] should he get what he wants, Malevolyn reveals he intends on having Lut Gholein massacred to the last human being before moving on with a demonic army to subjugate or slaughter all before him.

* [[ManipulativeBastard Dul'Mephistos]], [[ThePowerOfHate Lord of Hatred]], is the eldest of the Prime Evils and the closest thing demonkind has to a singular ruler. [[TheChessmaster The most calculating]] of his brothers with a burning hate for all that lives, Mephisto was the mastermind behind the Triune of Sanctuary, a secret organization to worship demons and twist humankind to murder. Later forming the plot of the Dark Exile, Mephisto killed countless innocents before being contained in his Soulstone, [[TheCorrupter corrupting]] the Church of the Zakarum into an organization of depravity and murder before sending Archbishop Lazarus to Tristram to free his brother Diablo, making Mephisto the mastermind behind all the misery unleashed by the Prime Evils. Unleashed at last, Mephisto plots a full invasion of Sanctuary and the mass annihilation of humankind before annihilating the High Heavens so that [[OmnicidalManiac all Creation falls before the power of Hell]].

[[VideoGame/{{Diablo}} The World of Sanctuary]] was founded as a refuge from the eternal conflict between the [[{{Heaven}} High Heavens]] and [[{{Hell}} Burning Hells]], but [[CompleteMonster the worst]] of the Angels, Demons, and even humankind show that Sanctuary can never be wholly free of evil's touch.

* First game (primarily): [[SinisterMinister Archbishop Lazarus]] becoming a devoted servant of Diablo in Tristram, seeks to bring out the Dark Lord into the real world. Helping Diablo to possess King Leoric, wiping out Leoric's morality and [[TheCorrupter corrupting him into a tyrant]], [[TreacherousAdviser Lazarus plays the devil in his ear]], swaying him into atrocities and even having him start a pointless war that leaves most of his soldiers wiped out by Westmarch. Lazarus then brings the child Prince Albrecht to Diablo to possess, intending on unleashing the Prime Evils to damn and destroy most of Sanctuary, even luring in the well-meaning, would be heroes to the slaughter at the hands of Diablo's monsters beneath Tristram.

* ''Moon of the Spider'': [[GiantSpider Astrogha]] is a powerful demon, responsible for mass [[HumanSacrifice human sacrifices]] and various other atrocities in the past. Astrogha's proudest accomplishment is the "Children of Astrogha" - people possessed by his demons and turned into powerful but blindly murderous creatures with Astrogha having condemned thousands to this fate. After being released from his prison, Astrogha [[DemonicPossession possesses]] the body of Lord Aldric Jitan before attempting to do the same to Zayl, while sending his servants to destroy the capital and then the entire kingdom of Westmarch to turn it into his new domain.

[[AC:{{Overarching Villain}}s]]

[[AC:Other Media]]
* ''Legacy of Blood'', by Richard Knaak: General Augustus [[NamesToRunAwayFromReallyFast Malevolyn]] shows what kind of man he is by handing a loyal soldier to his witch and mistress Galelona to be [[HumanSacrifice horribly sacrificed to demons]]. Hunting down the armor of his ancestor Bartuc, Warlord of Blood, Malevolyn eventually [[DealWithTheDevil makes a pact with the demon Xazax]], who shows him a ritual to bind demons to his soldiers. Sacrificing the souls of his entire army, Malevolyn has them slaughter a patrol from Lut Gholein before having the city attacked. Despite [[ILied promising them peace]] should he get what he wants, Malevolyn reveals he intends on having Lut Gholein massacred to the last human being before moving on with a demonic army to subjugate or slaughter all before him.

[[VideoGame/{{Diablo}} The World of Sanctuary]] was founded as a refuge from the eternal conflict between the High Heavens and Burning Hells, but [[CompleteMonster the worst]] of the Angels, Demons, and even humankind show that Sanctuary can never be wholly free of evil's touch.

[Image]

** ''Reaper of Souls'' ExpansionPack (primarily): Malthael

[Header]

* Mephisto

* ''Reaper of Souls'' ExpansionPack (primarily): Mephisto

** Malthael

* Mephisto

[Quote]

* First game: [[SinisterMinister Archbishop Lazarus]] becoming a devoted servant of Diablo in Tristram, seeks to bring out the Dark Lord into the real world. Helping Diablo to possess King Leoric, wiping out Leoric's morality and [[TheCorrupter corrupting him into a tyrant]], [[TreacherousAdviser Lazarus plays the devil in his ear]], swaying him into atrocities and even having him start a pointless war that leaves most of his soldiers wiped out by Westmarch. Lazarus then brings the child Prince Albrecht to Diablo to possess, intending on unleashing the Prime Evils to damn and destroy most of Sanctuary, even luring in the well-meaning, would be heroes to the slaughter at the hands of Diablo's monsters beneath Tristram.