Aberrus, the Shadowed Crucible

Defeat these bosses (9)

Each line is a boss encounter from the game data, linked to its boss page where the journal has one, otherwise to the instance it is fought in.

Where: Aberrus, the Shadowed Crucible

1. Kazzara, the HellforgedAlthough Neltharion would not use them himself until much later, he experimented with elementium plating in the early days of Aberrus. The end result of elementium and shadowflame was Kazzara, who was deemed far too unstable for release. Driven mad by the excruciating pain of her elementium plates, she now serves as the guardian of the Shadowed Crucible.
2. The Amalgamation ChamberThe Eternal Blaze burns with the heat of a thousand suns, while the Essence of Shadow blooms with darkness incarnate. Although exceptionally powerful on their own, when combined they surge with the unchecked might of shadowflame, creating a whirlwind of ultimate destruction.
3. The Forgotten ExperimentsThe development of the dracthyr produced many iterations, some more successful than others. Early versions of the experiment proved far too volatile to destroy. Kept dormant for thousands of years, these creations have now awakened, and seek to test their prowess against the champions of Azeroth.
4. Assault of the ZaqaliLed by Warlord Kagni, the Zaqali warband has launched an all-out assault against the Shadowed Crucible in search of their missing Elder, Rashok. Brutal and ruthless, Kagni is willing to employ any tactic to succeed.
5. Rashok, the ElderImprisoned within Aberrus for a millennia, the Zaqali elder Rashok has been perpetually drained of the raging flame within him to power Neltharion's twisted laboratory. Existing on the edge of death for so long has driven the elder mad. Should he break free, his vengeance will scour the Shadowed Crucible's halls.
6. The Vigilant Steward, ZskarnLong ago, Zskarn was tasked with testing the mettle of Neltharion's experiments. Only the most powerful would pass muster and keep their lives. The latest visitors to the Shadowed Crucible have attracted his unwavering attention--but his approval will be much harder to earn.
7. MagmoraxRaised from a pup by Neltharion, the only thing stronger than the loyalty of Magmorax is his appetite. The lava hydra guards the passage into the deepest chambers of the Shadowed Crucible, keeping his master's secrets safely hidden from prying eyes.
8. Echo of NeltharionTucked away in the depths of the Shadowed Crucible, Neltharion's sanctum was a place of refuge and research for the Earth-Warder. Some say that echoes of his powerful presence still linger here, contemplating the future of the black dragonflight and how to obtain the power to ensure its success.
9. Scalecommander SarkarethAs leader of the Sundered Flame, Scalecommander Sarkareth broke away from the rest of the dracthyr to forge a new future. He has since led his forces to Aberrus, intent on claiming the legacy he believes rightfully belongs to his kind and willing to do anything to obtain it.