For two of the delve quests , a boss stands in the way of your objective, though Avrusa Duleri in Khartag Point can be avoided by sneaking along the wall.
Avrusa Duleri
Abilities
Agonizing Fury Slams the ground, sending shock bolts out from the impact site.
Damage: Low Moving Circle AoE over time
Purpose: Area Denial
Status Effects: Snare
Strategy: Avoid.
Shock Aura Fills the air around the caster with electricity.
Damage: Moderate Circle AoE
Purpose: Heavy Attack
Status Effects: Knockback
Strategy: Avoid or interrupt.
Thunder Hammer Strikes the ground, sending a wave of electricity out in a cone.
Damage: Moderate Cone AoE
Purpose: Heavy Attack
Status Effects: N/A
Strategy: Avoid.
Drovos Nelvayn
Abilities
Raise the Earth Summons a bear to attack his adversaries.
Damage: Bear damages opponents
Purpose: Harass
Status Effects: N/A
Strategy: Caster takes more damage with an active bear. Killing the caster kills the bear.
Gore Hurls a Spectral Haj Mota across the battlefield.
Damage: Heavy Moving Circle AoE over time
Purpose: Heavy Attack
Status Effects: Knockback
Strategy: Avoid.
Dive Calls a Spectral Cliff Strider to explode at the target’s location.
Damage: Moderate Circle AoE
Purpose: Area Denial
Status Effects: N/A
Strategy: Avoid.