Skip to main content

Mechagon, Healer Guide

Updated 18 hours, 1 minute ago for patch 8.2 by Preston. View the change log.

This page covers healer-focused strategies for the Operation: Mechagon dungeon. 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 as well as Dungeon Journal information. I'll continue to update it as-needed.


Below are guides for the bosses in Operation: Mechagon, including their abilities, healer notes, and addon settings.

King Gobbamak Dungeon Journal Model King Gobbamak

  • During Rumble, avoid the impact locations of Cave In.
    • All players take moderate damage over time for the duration of Rumble.
  • At 100% Energy, stand within 8-yards of the tank to split the damage dealt by Charged Smash.
    • All players hit will be affected by Electrical Charge, taking light damage over time and dealing damage to players within 6-yards.
      • While affected, move near a Stolen Tech (detailed below) to activate it and remove the debuff.
  • Periodically summons Scrapbone Grunters from the nearby caves.
    • These target random players with Rampaging.
  • Stolen Tech
    • Activating Stolen Tech with Electrical Charge helps keep the Scrapbone Grunters under control. 
    • Stolen Scrapbot
    • Stolen Shock Coil
      • Zaps nearby Grunters.

 Healing Notes

  • Pre-heal before and use Cooldowns on Rumble.
 Debuffs to Track
  • Useful addons will be added closer to release.

Gunker Dungeon Journal Model Gunker

  • The tank should always stay in melee range of Gunker to avoid Sludge Bolt being cast.
  • Most of Gunker's abilities leave Toxic Goop behind.
    • Touching Toxic Goop applies Gooped (dispel, disease), incapacitating the affected player and dealing light damage over time.
      • Gooped must be destroyed by other players or dispelled to free the trapped player.
  • Squirt Bots roam the area cleansing Toxic Goop with Sanitizing Spray.
    • These can also be affected by Gooped (dispel, disease) and should be freed whenever possible.
  • Toxic Fumes deals light damage over time to all players for the duration of the encounter.
  • Avoid the Toxic Waves that emanate out in all directions.
  • Avoid the impact locations of Splatter.
    • This will always apply Gooped (dispel, disease) to one Squirt Bot.
  • Coalesce pulls all players and Toxic Goop towards Gunker.

 Healing Notes

  • Be aware of players that are Gooped (dispel, disease) to heal or dispel them.
 Debuffs to Track
  • Major: Gooped (dispel, disease)
  • Useful addons will be added closer to release.

 Trixie Dungeon Journal Model Trixie and Naeno

This encounter consists of two enemies that do not share a health pool.

  • Trixie "The Tech" Tazer
    • Periodically moves to a new location with Electric Slide.
    • Interrupt Taze to prevent damage on random players.
    • When targeted by Mega Taze, stand in a Smoke Cloud to prevent the damage over time.
    • Jump Starts Naeno's Mechacycle.
    • Upon death, buffs Naeno with Turob Boost causing his attacks to deal moderate damage to all players.
  • Naeno Megacrash
    • Don't be in front of the boss when he casts Bolt Buster.
    • Avoid the targeted location of Roadkill.
    • While piloting the Mechacycle:
    • Upon death, it's likely Naeno will buff Trixie,but there's currently no information in the Dungeon Journal.

 Healing Notes

  • Players targeted by Pedal to the Metal will take a heavy amount of damage upon impact.
  • Players targeted by Mega Taze will take critical damage over time if they fail to make it to a Smoke Cloud.
 Debuffs to Track
  • Useful addons will be added closer to release.

HK-8 Aerial Oppression Unit Dungeon Journal Model HK-8 Aerial Suppression Unit

Stage One - Fire At Will!

  • HK-8 is not attackable during this stage.
  • Avoid the impact location of Cannon Blast.
  • The Reinforcement Relay periodically warps in reinforcements.
    • Tank Buster MK1
      • The tank will be dealing with Wreck.
      • Targets random players with Fulminating Zap, dealing heavy damage over time.
    • Walkie Shockie X1
      • Stay at least 5-yards away from these to avoid damage from Static Discharge.
      • At 0% Energy, stay at least 6-yards away from these to avoid the fatal damage from Self-Destruct.

Stage Two - Annihilation!

  • HK-8 moves to an Overcharge Station and begins channeling Annihilation Ray.
    • Avoid the beam location.
    • Deals light damage to all players.
    • When the channel ends after 1.5-minutes, Annihilation Blast deals fatal damage to all players.
  • Players must Hack the Overcharge Station to cause HK-8 to go Haywire.
  • Avoid the Vent Blasts to avoid being stunned.
  • Avoid the Sentry Array beams as they rotate around the area, players hit will be teleported by Anti-Tresspassing Teleport.
  • Avoid the Sentry Bots as they move around the area, players hit will be teleported by Anti-Tresspassing Teleport.

 Healing Notes

  • The tank may need additional healing or an external defensive cooldown when affected by Wreck.
  • Players targeted by Fulminating Zap will need heavy healing over time.
 Debuffs to Track
  • Useful addons will be added closer to release.


Tussle Tonks Dungeon Journal Model Tussle Tonks

  • The Platinum Pummeler
  • Gnomercy 4.U.
    • Charges random players with Foe Flipper, launching all players within 6-yards into the air.
    • During Vent Jets, don't stand in front of the boss.
      • All players will be taking moderate damage over time.
    • Targets random players with Maximum Thrust, knocking back all players in its path.
      • When possible, aim this towards the arena wall to stun the boss.
  • Tussle Tonk Arena
    • Stay at least 4-yards away from Piston Smashers to avoid the extra damage and stun.
    • Stay at least 2-yards away from Buzz Saws to avoid the extra damage.

 Healing Notes

  • Players targeted by Maximum Thrust can be knocked into other mechanics.
 Debuffs to Track
  • Useful addons will be added closer to release.

K.U.-J.0. Dungeon Journal Model K.U.-J.0.

  • The tank will steadily gain stacks of Blazing Chomp (dispel, magic).
    • When dispelled, this deals damage to all players based on the number of stacks.
    • In general, this should be dispelled around 2-3 stacks to keep damage manageable.
  • Avoid the impact locations of Air Drops.
  • When targeted by Explosive Leap, move at least 8-yards away from other players and Junk Bombs.
  • During Venting Flames, break line of sight on the boss to prevent the critical damage dealt.

 Healing Notes

  • Be sure all players are topped off before dispelling Blazing Chomp (magic).
 Debuffs to Track
  • Useful addons will be added closer to release.

Machinist's Garden Dungeon Journal Model Machinist's Garden

 Healing Notes

  • This fight can become hectic with all the mechanics that need to be dodged, be aware of players that end up out of range.
 Debuffs to Track
  • Useful addons will be added closer to release.

 King Mechagon Dungeon Journal Model King Mechagon


Stage One - Aerial Unit R-21/X

  • The tank will be dealing with Pulse Blast.
  • Avoid the Plasma Orbs scattered around the area.
    • Stay at least 6-yards away from them during Recalibrate to avoid the burst of damage.
  • Avoid the space between Mechagon and the player targeted by Giga-Zap.
    • Any players hit will take moderate damage over time.
  • During Take Off!, stay at least 8-yards away from Mechagon.
    • Once in the air, Cutting Beam deals moderate damage to any players beneath Mechagon as well as light damage over its duration to all players.

Stage Two - Omega Buster

 Healing Notes

 Debuffs to Track
  • Useful addons will be added closer to release.

 Trash Mobs

Below are notes for the trash mobs in Operation: Mechagon. Operation: Mechagon has a relatively linear layout. The trash below is ordered as if you're completing the bosses in the order they're listed above.

  • Trash mob information will be added when I've had the chance to complete the dungeon.

 Trash Debuffs to Track

  • Trash mob debuff information will be added when I've had the chance to complete the dungeon.

 Trash Addons

  • Useful addons will be added closer to release.

 Mythic+ Notes

In this section you'll find notes about certain interactions bosses and trash mobs have with the Mythic+ difficulty increase or certain affixes that make them more troublesome than normal.

  • Mythic+ notes will be added if a Mythic+ version of the instance becomes available.

Comment on Mechagon, Healer Guide

Changelog - View the last ten changes. - +

June 23, 2019 - 8:53 pm (Healer) - Added missing boss thumbnails.