Loken Loken was one of the Titan watchers tasked by the Pantheon to watch over Azeroth in their absence . Elevated to the role of prime designate , Loken was the chief jailor of the Old God Yogg - Saron , imprisoned in the depths of Ulduar . However , the whispers of the Death God eventually drove Loken to betray his comrades and bring down the works of the Pantheon . With Ulduar and the Forge of Wills under his control , Loken created an army of iron constructs , such as the iron dwarves that battle the earthen throughout Northrend . Biography . According to the Tribunal of Ages in Ulduar ' s Halls of Stone , Loken — also known by various sources as " Keeper Loken " , " Sentinel Loken " , " Kronus " , and " prime designate " — was named the supreme protector of Azeroth by the Pantheon , leading the aesir ( storm giant s ) and vanir ( earth giant s ) following the containment of the Old Gods . Along with his brother Thorim , the Stormlord , as well as Watchers Hodir , Freya , Mimir and Tyr , Loken was designated as a guardian to watch over the prison of Yogg - Saron , deep within Ulduar . Over time , however , Loken succumbed to the whispers of the Old God and turned on his allies , taking control of Ulduar and seeking to unravel the plans of his former masters . At some point he provoked a global war to break out between the storm giants and earth giants , which was ended by Loken " neutralizing " them . After the conclusion of that war , Loken placed the earthen , giants , and vrykul into stasis at designated holding facilities ( presumably , facilities like Uldaman or Ulduar ) . Among his other acts of treachery was the murder of Sif , the wife of his brother Thorim . Loken tricked Thorim into believing that it had been the work of Arngrim , the king of the ice giant s , turning Thorim against his allies . Much later on , Thorim — having realized he ' d been had — gathered his weapons and armor ( with the aid of players ) and confronted Loken in combat . However , being so far from his sanctuary in the Temple of Storms allowed Loken , in proximity to his dark master , to overpower his brother . Loken was presumably the Watcher of the Temple of Wisdom ; he can be found in the throne of the Temple during the confrontation with Thorim in . Links to Ulduar . As prime designate , Loken ' s task was to protect the world of Azeroth and subsequently act as chief jailor of the imprisoned Yogg - Saron . After his corruption , Loken subdued the other watchers , facilitating Yogg - Saron ' s possible escape . Once in control of Ulduar , Loken utilized the services of Ignis the Furnace Master on at least two occasions . One was the transformation of Veranus , Thorim ' s proto - drake , into the plated monstrosity Razorscale . Loken also ordered the construction of Kologarn , the massive stone construct , to guard the Shattered Walkway that leads into the inner halls of Ulduar . When he is killed in the Halls of Lightning , Loken says that his death " heralds the end of this world " , after which the map of Azeroth bursts into fire and launches a beacon of light toward the sky . According to the Archivum Console in Ulduar , the " Algalon failsafe " - an automatic emergency signal following the death of the prime designate - was activated immediately following Loken ' s demise , resulting in the arrival of Algalon the Observer . The console goes on to explain : When asked to explain " re - origination " , the Console replies : In other words , the Titans would destroy all of Azeroth and everything on it , then rebuild it from the raw materials left behind from that destruction - thus giving credence to the dire warning in Loken ' s dying breath . Quests . Loken is also involved in the following quests : Quotes . Encounter in Halls of Lightning . " See Loken - Quotes " Myth . Loken ' s name is most likely based on , the main trickster of Norse mythology . With Angrboda , he was the father of Fenrir , Jormungandr , and Hel . Although Loki is actually a Giant , he is a blood brother of Odin , and Odin , Thor and Loki are featured in many stories in Norse mythology . However , Loki turns on the Aesir when he tricks blind Hod into killing Baldr , setting off the events that would lead to Ragnarök ( Apocalypse , End Of The World ) . At Ragnarök , Loki would lead the giants and inglorious dead into battle against the Aesir and the Einherjar ( glorious dead ) , and there he would do battle with Heimdall , the watchmen of the gods , and both would slay each other . Interestingly , it ' s Loken ' s death that causes events in WoW to spiral out of control leading to the possible destruction of Azeroth . Loken is also referred to as Kronus by the earthen from Ulduar , and a few other quests , which is a reference to , the first Titan of Greek mythology and father of several deities of the Greek pantheon . This may be an alternate name or a leftover from the Alpha , before his name was finalized .