- In the early days of Aberrus, Neltharion experimented with elementium plating, which he would not use himself until much later. This experimentation led to the creation of Kazzara.
- Kazzara, a result of combining elementium and shadowflame, was deemed far too unstable for release, posing a significant threat.
- Due to the excruciating pain caused by her elementium plates, Kazzara was driven mad and now serves as the guardian of the Shadowed Crucible.
- Hellsteel Carnage is a mechanic where Kazzara's elementium plates shatter at 80%, 60%, and 40% health, turning into Hellsteel Fragments. The shattering causes a calamitous blast that inflicts significant Shadowflame damage to all players.
- Infernal Heart is another mechanic where Kazzara's exposed core pulses, inflicting Shadowflame damage to all players every 4 seconds. The damage increases as she loses more armor.
- Dread Rifts is an ability where Kazzara releases a furious roar, creating rifts beneath several players. After 5 seconds, these rifts inflict Shadowflame damage to players within 5 yards. The number of targeted players increases as Kazzara loses armor pieces.
- Rays of Anguish is a mechanic where Kazzara summons fragments of blazing energy from Dread Rifts. Each fragment creates a blistering beam that hunts nearby players, leaving a Molten Scar in its wake. Players touching the beam receive Shadowflame damage every 0.3 seconds.
- Hellbeam occurs when Kazzara reaches 100 energy. She unleashes an annihilating beam from her jaws, inflicting massive Shadowflame damage every 0.3 seconds for 3 seconds to any players caught inside. The superheated breath also inflicts additional Shadowflame damage to all players.
- Wings of Extinction is an ability where Kazzara thrashes her fiery wings, inflicting Shadowflame damage to all players and pushing them away. The flames linger, causing additional Shadowflame damage over 20 seconds.
- Terror Claws is an attack where Kazzara lacerates her target, inflicting both Physical and Shadowflame damage. The charred gashes cause damage over time and increase damage taken from further Terror Claws casts by 200% for 25 seconds.
- The fight has specific mechanics for Normal, Heroic, and Mythic difficulties. These include Dread Rifts, Molten Scars, Infernal Fusion, and Relentless Torment. Each difficulty level introduces new challenges and requires different strategies.
- Tanks, Damage Dealers, and Healers have specific roles and mechanics to manage during the fight, such as managing Terror Claws, Rays of Anguish, Molten Scars, Dread Rifts, Hellbeam, Wings of Extinction, and Infernal Heart. Each role must adapt to the specific mechanics for their difficulty level to ensure success in the encounter.