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WoW Classic 20th Anniversary Bug Trio Boss Fight Guide: How To Complete It?

Posted: Aug 14, 2025 Views: 36

Currently, Phase 5 of WoW Classic 20th Anniversary is ongoing, which was launched on July 10, 2025, and expected to continue until late this fall. This phase features two new raids, along with their associated quests and class set rewards.

These two raids are the 20-player raid The Ruins of Ahn'Qiraj and the 40-player raid The Temple of Ahn'Qiraj. They differ in the amount of WoW Classic 20th Anniversary gold awarded and the types of bosses encountered.

To help you complete them, this guide is for Bug Trio boss fight in The Temple of Ahn'Qiraj. While this is an optional boss fight, its value is not to be underestimated.

WoW Classic 20th Anniversary Bug Trio Boss Fight Guide: How To Complete It?

Bug Trio Boss Fight Overview

As the first optional boss fight in The Temple of Ahn'Qiraj raid, Bug Trio actually consists of three bosses: Princess Yauj, Lord Kri, and Vem. The order in which they appear is up to you and your team.

However, it's important to note that only the final boss drops the final reward, and each boss's death triggers its own passive abilities. The most dangerous of these is Vem's Vengeance, which boosts the attack speed and damage output of the remaining bosses.

Therefore, to avoid a wipe from this ability early on, it's strongly recommended fighting Vem as the last or second-to-last boss in Bug Trio. The optimal boss order ultimately depends on your team's needs:

  • Easiest: Lord Kri, Princess Yauj, then Vem.
  • Hardest: Princess Yauj, Vem, then Lord Kri.
  • Based on loot: Defeating the boss you're most interested in last, but always ensure Vem isn't the first boss.

How To Defeat Princess Yauj?

This boss will initially release an AoE skill called Fear, which resets its threat. The best way to counter this is to have two tank roles on your team stand near the boss, use her Berserker Rage to cancel Fear effect, and immediately taunt and disable her.

Note that Princess Yauj moves very quickly. If the tank role doesn't taunt her immediately after Fear expires, she might move to another boss and cast Great Heal to heal them, making the fight even more difficult.

Fortunately, even if this happens, Princess Yauj's Great Heal is interruptible, especially when her health begins to decline and she becomes a target. If you have the ability to interrupt, you should be vigilant and interrupt her healing efforts on other bosses.

Dispel, this boss's third ability, allows Princess Yauj to remove debuffs from another boss if she's too close and within her line of sight, then cast Great Heal.

Princess Yauj's post-death ability spawns multiple Yauj Broods, which can harass you, but are easily dealt with by mages or any teammate with AoE abilities. The key to this fight is to keep Princess Yauj away from her allies.

How To Defeat Lord Kri?

This boss's most dangerous ability, Toxic Volley, continuously releases poison damage while he's alive, so it's crucial to make the healers on your team constantly clearing the toxic debuff that be added on your team, and ensuring everyone has plenty of potions.

Lord Kri's basic ability, Cleave, attacks all targets in front of him. Due to the low damage resistance, all melee DPS on your team should move behind the boss.

Furthermore, while using Cleave, the boss will randomly cast Thrash, automatically attacking the tank with the highest aggro on your team. Therefore, it's crucial to ensure your tank role has high health and good gear.

Finally, when Lord Kri dies, he triggers Poison Cloud, instantly inflicting significant Nature damage to anyone caught in its range. Your goal is to move away from him and focus on the final boss.

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How To Defeat Vem?

At the start of this fight, Vem will immediately perform a berserk charge, targeting a random team member and charging towards them, knocking over all nearby players in the process and stunning them for 2 seconds at the end.

Note that this ability is nearly impossible to avoid when Vem is the primary target. However, while you're dealing with the previous boss, you can have the tank drag Vem into a small alcove to keep him away from other players.

If Vem dies as a non-final boss, his skill, Vengeance, increases the attack speed and damage output of other bosses. If he dies as the final boss, he will enter a Berserk state.

Overall, while the skills triggered upon Vem's death are tricky, his normal combat abilities are quite easy to deal with.

Best Classes For Bug Trio Boss Fight

Given Lord Kri's constant poison damage, any class capable of clearing that debuff and healing allies is essential, such as Druid, Paladin, and Shaman.

Dwarfs and Priests are also crucial for dealing with Princess Yauj's Fear ability, as they can gain immunity to it through Tremor Totem and Fear Ward. If Princess Yauj's Fear effect persists for too long, forcing players to leave the arena, the boss fight may reset.

Rogue and Warrior players should remain vigilant throughout the fight, and utilize their interrupt skills to prevent Princess Yauj from using Great Heal to heal other bosses.

In short, by understanding the abilities of all three bosses and choosing the correct attack order, ensuring your team has a comprehensive range of roles and equipping everyone with powerful gear and buffs before the fight will ensure victory!

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