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[[Image:Diablo_Archive_cover.jpg|thumb|Diablo, Lord of Terror]]'''Diablo''', the ''The Lord of Terror'', is the primary antagonist in the ''Diablo'' video game series developed by [[Blizzard|Blizzard Entertainment]]. He is the final boss in the first ''Diablo''game, and the final boss in ''Diablo II' is ' prior to the release of the younger brother of expansion pack. Along with his older brothers, [[Baal]] and [[Mephisto]]. The , Diablo is one of the three demons are collectively know as the [[Prime Evils]].  

====The Sin War====Chronologically, Diablo first appeared in the Sin War trilogy, which details the ancient conflict on the world of [[ArchAngelSanctuary]] . Posing as Dialon, the Spirit of Determintaion, Diablo secretly led a group of religious fanatics in attempt to establish control over the realm. After the plan failed, the Archangel [[Tyreal]] created the [[SoulStonesSoulstone|Soulstones]] to imprison and charged the Horadric order with the imprisonment of the Prime Evils.{{clear-both}}====Diablo====[[Prime EvilsImage:Diablo_1_portrait.jpg|left|100px100px]] during their banishment to The first encounter with Diablo occurs after a lone hero journeys deep beneath [[SanctuaryTristram|Tristram's]]Cathedral in search of a demonic presence plagueing the countryside. The Diablo had nearly possessed the former ruler of Khanduras, [[Prime EvilsKing Leoric]] sought . Finding the king too strong willed to gain control over the powerful resident dominate completely, Diablo instead possessed his son, [[NephalemPrince Albrecht]], . The hero takes a portal directly to be enslaved as weapons Hell in [[order to confront Diablo directly, ultimately defeating him. The Great Conflict]]misguided hero drove Diablo's soulstone into his own forehead, hoping to contain the demon himself. {{clear-both}}====Diablo II====During [[The Sin WarImage:Diablo_2_portrait.jpg|right|200px200px]], The opening cinematic of ''Diablo confronted II'' introduces us to the [[UldyssianThe Wanderer|Wanderer]], displaying the myriad warrior who defeated Diablo underneath Tristram and is now pursued by a group of ever-shifting forms heroes. The Wanderer travels the countryside, unleashing demons and horrors in his wake as he is slowly possessed by Diablo. Surrendering control to the demon within, the Wanderer frees [[Baal]] and [[Prime EvilMephisto]] uses , eventually traveling to terrorizeHell where he completes the transformation into his true demonic form. He is once again followed to Hell, where the pursuing heroes unlock five seals to summon him in his Chaos Sanctuary. After defeating Diablo the heroes destroy his soulstone, banishing him from Sanctuary back to the Burning Hells. <!-{{clear-both}}===Appearances=Diablo III====Diablo is the final boss in [[httpImage://diablo2.diablowikiDiablo_3_portrait.net/Diablo Diablojpg|left|240px240px]]Aside from a brief appearance in the cinematic trailer, not much is known about Diablo's role in the upcoming sequel.{{clear-->both}}===Novels===Diablo has appeared in the following novels:*Legacy of Blood*The Black Road*The Kingdom of Shadow*Demonsbane*Moon of the SpiderThe Sin War trilogy:*Birthright*Scale of the Serpent*The Veiled Prophet

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