Kormok

Laboratory
Clear space around Ras before the laboratory fight so Fear and Chill Nova cannot carry players into another pack. Kormok is a separate optional summon in this room; leave the brazier unused unless the group has come prepared for its shield and summoned attackers.

Kormok
Elite HumanoidKormok is an optional laboratory summon that tests shield removal and control of summoned attackers before their casters overwhelm the healer.
Abilities

Bone Shield
Dispel Bone Shield promptly if possible; it absorbs damage and damages attackers. Avoid spending a burst into the shield while waiting for its removal.

Summon Bone Minions
Let the tank collect the summoned melee attackers before area damage; do not let them gather around the healer.

Summon Bone Mages
Switch damage to the summoned casters and interrupt their casts rather than leaving them free to attack the healer while everyone hits Kormok.

Shadow Bolt Volley
Hurls missiles of dark magic, inflicting Shadow damage to nearby enemies.
Shadow Bolt Volley adds group damage while summons are active. Keep enough healing available for players who are also being attacked by summons.

Bloodlust
Increases an ally's attack speed by 100% for 30 seconds.
Dispel Bloodlust from its recipient if possible; its increased attack speed makes leaving an attacker on the healer more dangerous.

Enrage
Keep defensive abilities for Enrage rather than exhausting them before Kormok increases his melee pressure.
Tank- Keep Kormok controlled while collecting the summoned melee attackers before they reach the healer. Hold a defensive ability for Enrage and call for Bone Shield removal.
Healer- Expect the summons and Shadow Bolt Volley to overlap. Tell the tank when a summoned attacker reaches you, and preserve healing for Enrage rather than spending it repairing avoidable Bone Shield retaliation.
Damage- Dispel Bone Shield and Bloodlust when your class can. Prioritize and interrupt the summoned casters, then help clear the gathered melee summons before returning damage to Kormok.