Kazzara
Kazzara

Raid Boss

Kazzara

Although Neltharion did not use elementium armor until much later, he experimented with it in the early days of Aberrus. The fusion of Elementium and Shadow Flame created Kazzara, who was deemed too unstable to release. The excruciating pain of her elementium armor has driven her mad, and she now serves as guardian of the Crucible of Shadows.

Tank
Terror Claws tank swap.
DPS
Hellsteel Carnage dodge & heal through.
Dread Rifts move out.
Rays of Anguish kite out.
Infernal Fusion do not cross lines.
Hellbeam dodge & heal.
Wings of Extinction position for knocks.
Relentless Torment clear beams asap.
Heroic Changes
Beams now chase players indefinitely until kited inside a Dread Rift.
Beams accelerate and deal ramping raid damage if they're not cleared before the next set of beams.
Mythic Changes
If a beam crosses a fire trail left by any beams, it deals a high burst of damage to the raid.

Terror Claws

https://www.wowhead.com/en/spell=404744 - Deals heavy physical and magic damage and leaves a stacking 25s DoT that also increases damage taken from this ability by 200%.
tank swap

Relentless Torment

https://www.wowhead.com/en/spell=410511 - Beams will move faster and deal increasing raid damage if they're not cleared before the next set of beams.
clear beams asap

Hellbeam

https://www.wowhead.com/en/spell=400430 - At 100 Energy, Kazzara turns toward a player and breathes a mortal frontal beam.While channeling the beam, the raid takes pulsing damage.
dodge the beam.

Hellsteel Carnage

https://www.wowhead.com/en/spell=401319 - At 80%, 60%, and 40% health, Kazzara's armor shatters, dealing a big burst of damage to all players.Pieces of her armor also drop to the ground, dealing damage to any players hit.After the first armor shatter, Kazzara begins dealing pulsing raid damage. The frequency of the damage increases throughout the fight.
use personals and heal through. dodge projectiles.

Wings of Extinction

https://www.wowhead.com/en/spell=403326 - Deals a burst of raid damage, knocks all players back, and applies a 20s DoT to everyone.
don't get knocked into fire.

Revenant's Blood

https://www.wowhead.com/en/spell=404789 - After Kazzara drops to 80% HP, she starts constantly dropping projectiles around the room.The frequency of those projectiles increases after each armor shatter.
dodge the projectiles. it's corrupted blood, it's not gonna buff you.

Rays of Anguish

https://www.wowhead.com/en/spell=407069 - Several players are targeted by a beam that follows them and leaves behind a trail of fire. Kite your beam into a rift to make them both disappear.Beams also disappear on their own after some time.More players are targeted by this ability after each armor shatter.
kite the beam away from the raid and into a rift to clear them both.

Dread Rifts

https://www.wowhead.com/en/spell=407200 - Kazzara marks multiple players with a circle. After 5s, they drop a rift, don't stand in them. Rifts disappear when a beam touches them.More players are targeted by this ability after each armor shatter.
drop circles away from players and don't stand in them.

Infernal Fusion

https://www.wowhead.com/en/spell=408147 - If a beam crosses a trail left by any beams, the raid takes a big burst of damage. This can quickly cause a wipe.
don't cross existing trails with your beams, it deals heavy raid damage.