This page covers a healer-focused strategy for Zek'voz, Herald of N'zoth in Uldir. While it's tailored for healers, other roles may also find the information useful. If you have any suggestions or feedback, you can leave a comment below or tweet @PrestonDvorak.

This guide has been updated and maintained based on my own experiences with the fight as well as Dungeon Journal information. I'll continue to update it as-needed.

General Mechanics and Abilities

Normal and Heroic

This is a multi-stage fight during which players will be fighting against Zek'voz and several of N'zoth's servants.

All Stages

• Titan Spark deals light damage to the group throughout the encounter.
• At 100% energy, avoid the Surging Darkness rings that appear around the boss. There are three "patterns" that occur randomly.
• The tanks will be dealing with Might of the Void.
  • This causes a series of three attacks: Void Lash, Shatter, Void Lash.
  • It's possible the current tank will need an external cooldown before the second attack to help survive the massive reduced healing debuff.

Stage One - Chaos

This stage begins when Zek'voz reaches 90% health and ends when it reaches 65% health.

• When targeted by Eye Beam, move away from other players to minimize the damage form the chaining effect.
• Sets of Silithid Warrior periodically spawn.
  • Target random players and apply stacks of Jagged Mandible with each attack.
  • These are susceptible to all forms of crowd-control.

Stage Two - Deception

This stage begins when Zek'voz reaches 65% health and ends when it reaches 30% health.

• When affected by Roiling Deceit, move as far away from the group as possible to drop the resulting Ominous Cloud.
  • If any player touches an Ominous Cloud as it moves around the room, a Guardian of Yogg-Saron will spawn.
    • These attempt to cast Shadow Nova and should be killed quickly.
• Three Nerubian Voidweavers periodically spawn around the back-center of the room.
  • Interrupt Void Bolt to prevent the large spike of damage on random players.
  • These are susceptible to all forms of crowd-control.

Stage Three - Corruption

This stage begins when Zek'voz reaches 30% health and ends when it reaches 0% health. 

• [Overload] increases the frequency of Titan Spark damage.
• The impact location of Orb of Corruption should be intercepted by a player, which will then knock the Orb back into the air.
  
  • Each player that intercepts the Orb gains Corruptor's Pact, increasing maximum health and healing and damage done for 30-seconds.
    • At the end of the duration, the player is affected by Will of the Corruptor.
      • On Normal, the player can be damaged to break the Charm effect.
      • On Heroic, the player can be killed, and doing so causes them to release a Void Wail, fearing players within 8-yards.
      • Interrupt Psionic Blast (dispel, magic) or dispel the Fear effect.

Mythic Differences

• Stage One and Stage Two from Heroic occur at the same time.
  • Nerubian Voidweavers
    • Steadily gains stacks of Void Calling.
      • At 10-stacks, these become immune to crowd-control.
• Stage Three occurs as normal.

Healing Notes

Quick Notes, All Difficulties

The notes below mostly pertain to progression difficulty, meaning if you out-gear the difficulty you're on or use extra healers they may not apply.

• Use Major Cooldowns
  • during Surging Darkness
• Use Minor Cooldowns 
  • when Silithid Warrior are active
• Pre-heal Before (mainly for heal over time classes)
  • Surging Darkness
  • Silithid Warriors
• Potion of Replenishment use
  • After Surging Darkness
• Other things to watch for
  • Tanks will take critical damage during Might of the Void.
  • Missed Void Bolt interrupts.

Debuffs to Track

Major

• Psionic Blast (dispel, magic) should be dispelled to remove the Fear effect.
• Void Wail (dispel, magic) should also be dispelled the remove the Fear effect.

Minor

• Jagged Mandible, causes players to need additional healing over time.

 DBM Settings

Below are the DBM settings I'll be using for Zek'voz, Herald of N'zoth in Uldir. You can set them up however you'd like, but these ones should work well as a starting point. Some settings may be Mythic only.

Healer DBM Settings for Zek'voz in Uldir

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 Videos

Heroic, Restoration Druid PoV

Below is a video of me and my guild killing Zek'voz on Heroic difficulty.

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