The mighty Hadronox is a gigantic bone spider (a type of spider with legs seemingly made up of bone native to Northrend) that was once kept within the nerubian city of Azjol-Nerub. When the nerubian city fell, the nerubian viziers unleashed a single spider and instilled Hadronox with a desire to avenge the fallen and challenge the undead Scourge, seeking to reclaim Azjol-Nerub from all who would reclaim it. Hadronox would be the second boss of the Azjol-Nerub instance, and as heroes of the Alliance and Horde stormed Azjol-Nerub to reclaim it for the nerubians, Hadronox wass being attacked by the Scrouge's Anub'ar undead nerubians, and the enraged Hadronox attacked the adventurers, and was eventually slain. Early in
came out of Beta.
Moorabi:
Moorabi is an ice troll of the Drakkari tribe that serves as the second boss in the dungeon of Gundrak, one of the instances in Northrend. Moorabi is one of the many ice troll high priests who turned on their loa gods to obtain their powers instead of serving them. Moorabi's title was the High Prophet of Mam'toth, and he had once served the mammoth loa Mam'toth. While Mam'toth destroyed himself to deny the ice trolls the ability to sacrifice him, creating a massive crater that slew a large amount of ice trolls. Moorabi nonetheless drank Mam'toth's blood to gain the loa's powers. Moorabi's battle in WoW is a simple two-stage fight, where he will transform into the Avatar of Mam'toth in the second stage. Beyond being an ice troll, however, in WoW Moorabi has nothing to do with freezing effect, instead being a simple physical fighter. Moorabi's attack quote, "I crush you, cockroach!" is taken from one of the possible quotes in his boss fight, but the other quotes are original to
Hearthstone. Moorabi would be slain alongside his other treacherous Drakkari brethren by heroes of the Alliance and Horde.
Arfus:
Arfus is original to
Hearthstone, and is a pun on Arthas's name as well the dog's voice of 'arf'. While ghostly dogs have been seen in
World of Warcraft in the past (notably the Spirit Wolves), none have been associated with the Lich King or Arthas. Arthas's only 'pet', as it were, is his own steed, named Invincible, which he raised as an undead skeletal horse upon his transformation into a Death Knight. Also noteworthy that Arfus is the only undead beast to have the 'beast' tag, with many other undead animals -- Spectral Spider, Bonemare, Unearthed Raptor, Fossilized Devilsaur -- all not having the beast tag.
Deathlord Nazgrim:
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| General Nazgrim (alive) |
In
Legion, the new Lich King, Bolvar would task the Deathlord and Darion Morgraine to resurrect a new version of the Four Horsemen. And, despite knowing how the Alliance and Horde would react, the Lich King tasks the Deathlord to resurrect some of their most revered heroes. First of the Four Horsemen to be raised is Nazgrim.
Nazgrim first appeared in
Wrath of the Lich King, as one of the orcish leaders within the Horde campaign to Northrend, with the rank of Sergeant. He was at odds with Krenna, and refused to follow her orders to attack the Alliance, knowing that their orders was to deal with the Scourge first. In
Cataclysm, Nazgrim, now a Legionnaire, was tasked by the new warchief of the Horde, Garrosh Hellscream, to gain new territory for the Horde, and was one of the many members of the Horde enamoured by the new warchief's conquest-minded goals. However, Nazgrim's fleet was waylaid by the naga and sunk by the mighty kraken Ozumat. Nazgrim and many other Horde warriors were enslaved, but were freed by a group of adventurers. Nazgrim would successfully lead an escape and rendezvous with other Horde ships, and with goblin technology, would lead a counter-attack to battle the naga's forces beneath the tides. Nazgrim would lead a rescue mission for those left behind, and would lead the force to kill the leader of the naga sea witch leading the assault on the watery realm, Lady Naz'jar.
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| Death Knight Nazgrim |
In
Mists of Pandaria, Nazgrim was promoted to General, and would be the one to inform Garrosh of the existence of Pandaria. Nazgrim was among the party dispatched to claim Pandaria for the Horde, and was pleased that the adventurer that aided him in Vashj'ir came alongside him. Nazgrim's gunship was shot out of the sky by the Alliance, and was among the first to encounter the native Pandaren. With the aid of the adventurer, Nazgrim would be able to successfully gain the allegiance of several pandaren, as well as a tribe of forest Hozen, and would continue to be a major quest-giver and leader throughout much of the Pandaria campaign. He was involved in brief internal political squabbles within the Horde. He would ultimately be loyal to Garrosh during the Horde Civil War, although on the eve of the Siege of Orgrimmar, Nazgrim would be approached by Thrall and Varok Saurfang. Nazgrim ordered the Kor'kron to stand down and allowed the two to enter and talk to however many orcs they can... but Nazgrim himself remained loyal. Nazgrim was bound by honour to be loyal to Garrosh, and fought against the combined forces of the Alliance and Horde when they besieged Orgrimmar. He faced off Horde leaders Vol'jin and Baine Bloodhoof, and would serve as the eighth boss of the Siege of Orgrimmar raid, although he held no hatred for the Horde adventurers, noting that they all fought for the Horde. Nazgrim was slain, and despite his death, was still considered a hero by the Horde.
In
Legion, the Deathlord would come to Nazgrim's grave in Durotar, and raise the former orc hero from the dead, turning him into first of the Four Horsemen, and would accompany the Deathlord and Darion Morgraine as they revived the other members of the Horsemen. Nazgrim as a death knight had a new love for the strangulation spell, which he abused in numerous points during the death knight storyline. Nazgrim would the participate in battles against the Burning Legion abroad the Exodar as well as the Broken Shore.
Thoras Trollbane:
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| Thoras Trollbane (WoW0 |
The second Horsemen to be raised was Thoras Trollbane, the warrior king of one of the seven great human nations that joined together during the Second War, Stromgarde. Thoras was one of the kings that answered the call to form the first Alliance, and led the armies of Stromgarde against the Old Horde in the Second War. However, Stromgarde lost much during the Second War, losing the island citadel of Tol Barad and much of Stromgarde's territory was razed by the Horde when they marched towards Quel'thalas. Trollbane would personally lead his troops to cut off a group of Horde reinforcements in the Alterac Mountains, preventing them from besieging Lordaeron's capital, while he sent his nephew, Danath Trollbane (one of the playable Alliance heroes in
Warcraft II) to retake Khaz Modan from the orcs, and later journey into the Dark Portal. However, once the war was over and the Horde was defeated, Thoras was indignant at the Alliance's insistence that the orcs not be executed and instead be imprisoned, and argued with his old friend Terenas Menethil about this matter -- particularly since Stormgarde had suffered much and could not afford the higher taxes needed to maintain the orcs. Thoras Trollbane would be one of the two kings, alongside Genn Greymane of Gilneas, to openly secede from the Alliance. Prior to the Third War, Thoras would be killed by his own son, Galen Trollbane. Stormgarde would eventually crumble. While a chunk of its population followed Jaina to Kalimdor, a combination of the undead Scourge, the human criminal organization known as the Syndicate, the Boulderfist ogres and the Forsaken members of the Horde caused the once-great nation of Stromgarde to splinter and fall, a pale shadow of its former greatness.
In
Legion, Thoras Trollbane is raised by the deathlord as the second member of the Four Horsemen of the Ebon Blade, and after learning of his kingdom's destruction, Thoras is convinced to fight for the Knights of the Ebon Blade. Prior to resurrecting Thoras, the knights of the Ebon Blade had to deal with Thoras's treacherous son Galen, who had wanted to utilize the knights of the Ebon Blade to help him secure his own territory, but ended up being killed permanently. Thoras would join the Knights of the Ebon Blade in their fights against the Burning Legion.
Inquisitor Whitemane:


Sally Whitemane was a young human who, during the Third War, saw her entire family succumb to the plague of undeath. Forced to destroy the undead bodies of her parents and friends, she was driven with a zeal to fight against the undead, and would study the art of priesthood. She would become one of the central members of the Scarlet Crusade in WoW, a group of fanatical warriors that exists only for the sole eradication of the undead in any way, shape or form. Now known as High Inquisitor Whitemane, she is one of the greatest proponents for extremism in their fight against the Scourge, and she grew even more and more obsessed as time went on, even capturing and torturing the living, and becoming increasingly paranoid towards those who were not part of her crusade. High Inquisitor Whitemane is the final boss of the Scarlet Monastery raid, and was targeted by elimination by both Alliance and Horde -- the Horde wanting to protect their Forsaken members, while the Alliance wants to bring the fanatical Scarlet Crusade back to its original purpose.
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| Whitemane (undead) |
However, so strong was High Inquisitor Whitemane in the force of the Holy Light and Resurrection that her first death was simply temporary (i.e. she can do what all the player characters do), and returned as the final boss of a revamped Scarlet Monastery, becoming the highest-ranking leader now that everyone else was dead. Working with new members of the Scarlet Crusade, adventurers that journey into the Scarlet Crusade, where the Forsaken rogue Lilian Voss would inform adventurers how to permanently slay Whitemane -- by thrusting the enchanted Blades of the Anointed into her corpse. High Inquisitor Whitemane was ultimately slain in this way, permanently killed and unable to resurrect herself...
Until
Legion, where, after resurrecting Nazgrim and Thoras Trollbane, the Deathlord and Darion Mograine traveled to the Scarlet Monastery and brought back Sally Whitemane as the third member of the Four Horsemen. Death had gotten rid of her madness, and she would pledge her allegiance to the undead Scourge that she once fought -- finding that the Burning Legion is now the target of her hatred and seeing this as a chance for atonement for the sins she had done in her life.
Darion Mograine:
And we finally return to Darion Mograine. The story of Darion, and indeed the Mograine family, is told initially through the
World of Warcraft: Ashbringer comics. Darion was the second son of the paladin Alexandros Mograine, and was brother to Renault. As he grew to adulthood, Darion would join the Order of the Argent Dawn led by Maxwell Tyrosus, one of the many paladin factions created after the fall of the Silver Hand during the Third War. His brother Renault, meanwhile, joined the far more fanatical Scarlet Crusade, and was manipulated by the leader of the Crusade, Saidan Dathoran (in reality, the dreadlord Balnazzar in disguise) to kill his own father, Alexandros. Darion would lead a rescue party to attempt to retrieve the holy blade Ashbringer from the corpse of his father, Alexandros, which had became the leader of the Four Horsemen of Naxxramas, and led a small party into Naxxramas. It ended horribly as he was attacked by the Four Horsemen, Grobbulus and Thaddius, and his entire party was slain. Darion managed to steal the Corrupted Ashbringer, however, and the voice of his father's spirit, trapped within the blade, led him to the Scarlet Monastery. Darion would confront his brother Renault, who had been driven to fanaticism by the Crusade, and Renault attempted to kill Darion and rid himself of the last vestiges of his past, only for the spirit of his father to manifest from within Ashbringer and kill Renault.
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| Darion Mograine |
Darion then traveled through the land to attempt to free his father's spirit from the Corrupted Ashbringer, finding the exiled paladin Tirion Fordring, who noted that only an act of love can purify the blade. Darion returned to Light's Hope Chapel, the base of the Argent Dawn, to find it under siege by a massive army of the dead. Darion cut his way through the undead Scourge to challenge the mighty Kel'Thuzad himself, who was unperturbed by the blade. Darion then realized what Tirion's words meant, and thrust the Ashbringer through his own heart. This noble act vaporized the entire Scourge army, turning everything into ash and purifying his father's soul... but Kel'Thuzad returned with a prize, nonetheless, for Darion Mograine had been turned into an undead death knight in place of his father, still wielding the Corrupted Ashbringer.
In
Wrath of the Lich King, Darion was made into Highlord of the Death Knigths of Acherus, an order of death knights made of newly risen warriors (i.e. player characters) that are sent to annihilate the living still remaining within the Eastern Kingdoms. Darion Mograine served alongside many other figureheads of the Scourge as a quest giver to novice death knights, and Darion himself would lead an army of death knights to besiege Light's Hope Chapel once more. However, there the Corrupted Ashbringer refused to strike down any living foe, and the massive powers of the Light wielded by Tirion Fordring and the Argent Dawn forced Darion to surrender. The Lich King (Arthas) then appeared, and ripped the spirit of Alexandros Mograine into Frostmourne once more, and gloated, noting how Darion and the newly-risen death knights were mere fodder just to bring the powerful paladins out of hiding. The Lich King tossed Darion Mograine aside, and in rage, Darion tossed the Corrupted Ashbringer to Tirion Fordring, who, in turn, purified the blade and sanctified the grounds of the Chapel, forcing the Lich King to retreat. The act also freed Darion Mograine and his army of death knights from the Lich King's influence, and thus the Knights of the Ebon Blade is formed, now opposing the Lich King and intent on bringing it down. Darion would strike an unusual friendship with his former comrade Tirion Fordring, and both would lead the Northrend campaigns and be found in numerous bases. Darion would assist adventurers to slay the mighty crypt lord Underking Talonox in Scourgeholme; help slay his 'replacement' within the Scourge, the death knight Orbaz Bloodbane; and assist adventurers alongside a group of Ebon Knights in the Cathedral of Darkness. He would lead the Knights of the Ebon Blade in the final assault into the Icecrown Citadel, and is heavily involved in the creation of the two-haded legendary axe Shadowmourne. Upon the Lich King's death, Darion would be reunited with the spirit of his father Alexandros, who is freed from the Lich King's blade, Frostmourne.
Darion would briefly appear as a questgiver in
Warlords of Draenor, before once more being important in
Legion. The necropolis of Acherus would move back to Northrend, and he would meet the new Lich King -- the former paladin Bolvar Fordragon. While not bound to this Lich King, Darion and the Knights of the Ebon Blade decided to join forces with him against the Burning Legion. Bolvar would direct a death knight (i.e. player character) to a powerful artifact, and would appoint the death knight as Deathlord of the Ebon Blade. Darion Mograine, more than familiar with the Deathlord from their past adventures together, was happy to secede command, having his fill with holding mighty fateful artifacts. The first task that Bolvar gave to Darion and the Deathlord was to re-create the Four Horsemen, mighty Death Knights that draw their power directly from the Lich King. One by one, the Deathlord and Darion would raise Nazgrim, Thoras Trollbane and Inquisitor Whitemane as the first three Death Knights. However, the fourth candidate for the Horsemen, Tirion Fordring, caused Darion to be angered -- Tirion was too much of a hero to be raised as into undeath. However, he eventually relented, although warned the others that 'there is no redemption for what we are about to do'. The knights of the Ebon Blade assaulted Light's Hope Chapel and fought against the paladins of the Silver Hand. Darion himself did battle with his former leader Maxwell Tyrosus, while the Deathlord fought against the blood knight matriarch Lady Liadrin.

However, as they are about to raise Tirion from his tomb, the Holy Light itself intervenes, and would have killed all the death knight present had Darion not created a portal and used Death Grips to toss the Deathlord through. While the Deathlord and the three other Horsemen survived, Darion himself was struck down by the power of the Holy Light. The other death knights note that Darion's body is too ravaged to be properly raised, but Bolvar, the Lich King, intervenes, noting how much Darion has sacrificed for the Knights of the Ebon Blade, and was raised from the dead... once more... as the fourth and final member of the Four Horsemen. Later, after an audience with the Silver Hand, the two factions uneasily bury the hatchet. Through a questline from the Paladin storyline, Darion would be persuaded by Maxwell Tyrosus to create the Heart of Corruption to allow a paladin player to transform the Ashbringer artifact weapon into having the appearance of the Corrupted Ashbringer. Darion would join the Knights of the Ebon Blade in many clashes against the Burning Legion. Darion Mograine would represent the Knights of the Ebon Blade at Krasus' Landing to discuss the Pillars of Creation with Khadgar and Velen.
Darion Mograine's TCG artwork was used in
Curse of Naxxramas for the Unrelenting Rider token in the Gothik fight. Despite not wielding the Corrupted Ashbringer as a member of the Four Horsemen (and he really only wielded it through the Death Knight opening quests in WOTLK), Darion's card art in
Hearthstone is depicted with it.
For non-legendary cards, click after the break.