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Farming the Mad King's Labyrinth


The Mad King's Labyrinth is an event within the Mad King's Realm, which happens every October and is hosted in Lion's Arch. This event is exceedingly popular due to its very high profit potential, though reaching those profits can be a difficult task if not prepared. The purpose of this guide is to provide advice and builds for farming in the Lab to maximize gold gains.

A Note On Player Health

While long farm sessions in the Labyrinth are common and seen as commendable, please always remember to prioritize your personal health.

  • Take breaks often. You should get up and stretch at least once an hour or once every 30 minutes, even if its only for a minute or so. Ideally, get up and walk around for 5-10 minutes every hour or two - Your leg muscles are responsible for a lot of your bloodflow!
  • Stay hydrated! Drinking water and other non-sugary beverages during the Labyrinth can ensure you stay healthy! Also, it can increase your profit/hr by making you more focused.
  • Wrist Stretches. For most folks, doing a few minor wrist stretches once an hour can drastically improve the bloodflow in your hands and help ward off an RSI.
  • Avoid Burnout. We all love our long farm sessions, but burnout is a very real thing and if you feel like you aren't having fun, it may be time to find a different activity for a bit.
  • Bring Friends. The Lab is crazy boring without friends, and boredom is bad for you! Bring along some friends to chat with, or try to make some friends while farming!

Quick Tips

  • Follow the Zerg; the Commander will lead you where you need to go.
  • Do not open any doors without being told to. This can hurt everyone’s profits.
  • Use LFG to find groups!
  • Do not engage with trolls.
  • Low-ish DPS is preferred in the Labyrinth. More on this below.
  • Bring buffs. See the consumables section below.
  • Please do not use mounts to rush ahead of the zerg and avoid using their Engage skills.
  • Revive players before they die.

Recommended Settings

  • Check "AoE Loot on Interact", "Autoloot: Autopickup" and "Autoloot: Quick interact" (requires Advanced Logistics mastery) - without that you will spend too much time picking up the loot
  • Uncheck "Promote Skil Target" so game won't "stick" to one target
  • Uncheck "Stop Autoattacking on Target Change" so you won't stop attacking when changing the target
  • Check "Autotargetting" so the game will choose target you are facing while attacking
  • Check "Allow Skill Retargetting" so your skills won't be canceled when changing the target
  • Turn off Auto-Attack to prevent dealing too much damage to one mob
  • Bind a key to "Autorun" (it makes life easier during hours-long farm)
  • Consider turning on Action Camera

Lab Route

To help yourself and your squad, be familiar with the route. It’s very simple, see below:

Lab Route.gif

Recommended Buffs & Consumables

For the Labyrinth, players are going to want to max out their Magic Find. The best way to do this is to use a combination of Food, Utilities, Boosters, and other buffs in order to get Magic Find as high as possible.


Since the goal of Lab is to make money, running food that boosts profit/hr is preferred over other options.

  • is the second, more specialized option. These will provide the maximum magic find boost from Food possible at 40%. For Labyrinth in particular this food is Optimal.
  • is an excellent choice in general.


Much like Food, we only have a few options here. In this case, however, they're all basically the same.

  • is better by a very slight margin due to its buff, Feline Fury.
  • and are roughly the same. Take your pick!


Boosters are Black Lion items that come from leveling up, map completion, the black lion trading company, and a few other sources. If you have these, you'll probably want to use them:

Other Buffs

Recommended Builds

Below is at least one build per class that will function in the Lab. Note that some builds perform at much higher levels than others and a build’s ability to tag mobs will determine a players gold per hour. The difference between the lowest tier build and higher tier build can be as much as a 30 or 40% difference in gold per hour.

It is worth noting that the builds provided below are meant to be generally applicable. In very advanced groups with a focus on boss doors, it is worth running more specific, adjusted DPS builds which are mentioned further down.

A Note on Builds

If your build uses Power gear, such as Berserker stats Berserker stats, it is worth removing your trinkets so as to not one-shot the enemies and allow allies to tag as well. It may also be worth using a Masterwork weapon, instead of an Exotic+ one.

Build templates are included where the recommended build varies significantly from the default setup.

S Tier

These builds are the best-in-class at tagging. They are capable of the highest possible bags per hour in the Lab and are widely accepted as the go-to tag builds.

Click to Open Toggle


Base build

Tagging build code
Copy Template Code

TagDevil is a fast-paced, mid-range tag build that relies on Trick Shot. The bouncing autos allow it to tag a large number of enemies very quickly, and Lotus Training or Unhindered Combatant can be used to drastically increase either tagging potential or mobility.

GS Mirage

GS Mirage is a comfortable, long-range tag build that relies heavily on Mirage’s Ambush mechanic to trigger Split Surge. This ability, when combined with Infinite Horizon, can strike up to three targets on its own, however, it will trigger on each of your clones. In total, this allows you to potentially tag up to 12 enemies with Split Surge alone, and with good RNG that can be increased to up to 16 enemies with one auto-attack and a well-placed Sigil of Superior Sigil of Fire proc.

A Tier

These builds perform quite well in the Labyrinth, though they don’t quite live up to the S-Tier builds. Typically, A-Tier builds sacrifice some tagging capability for an increase in speed or comfort.

Click to Open Toggle

Flamethrower Scrapper

Base build

Tagging build code
Copy Template Code

Flamethrower Scrapper is a short-range build that focuses on using Flame Jet to tag enemies. This skill has an extremely short range, however, and so relies on the Scrapper to stay at the very front of the Zerg at all times. In terms of raw tagging potential, this build is actually quite poor during “Laps”, however it makes up for this thanks to its extremely high Superspeed Superspeed generation. With enough Scrappers in a Zerg, this can heavily outweigh the poor tagging potential by drastically increasing the Zerg’s speed and inflating their bags/hour.

While running, you may find greater success by staying on Rifle, switching to Flamethrower for mob doors.

Staff Druid

(Consult the Tag info on the build page above.) Staff Druid is a long-range tag build that is extremely comfortable to play compared to most other options. It operates using a trick with the “Allow Skill Retargeting” option, which allows Solar Beam to quickly switch targets mid-attack. This build also outputs a moderate amount of Superspeed Superspeed and healing to allies, and can boost ally damage on bosses by stacking Might Might and Alacrity Alacrity.


TagRen is a mid-range build that plays similarly to TagDevil. It relies heavily on Phase Traversal to cover ground quickly, and occasionally may use Impossible Odds to make up ground in a very fast group. This build needs to hover near the front of the Zerg due to its 900 range on Shortbow. This build doesn’t bring anything special in terms of tagging, but has extremely high boss DPS which makes it great for groups that are doing boss doors.

While running, you should use Legendary Assassin Stance, and switch to Legendary Renegade Stance when at boss doors.

B Tier

These builds are only recommended if you do not have access to one of the classes mentioned above, as they typically are lacking in some critical area.

Click to Open Toggle

Tag Tempest

Tag Tempest is a mid-ranged beam-focused tag build. This build functions much like Staff Druid, using Beam Retargeting to rapidly tag a series of enemies using Arc Lightning. It is extremely simple to play and very safe, a powerful group stunbreak thanks to "Eye of the Storm!". It also grants a small amount of Superspeed Superspeed!

C Tier

These builds are serviceable in the Labyrinth, though not up to par with other options.

Click to Open Toggle

Condi Scourge

(The build page above does not feature a tagging variant; instead, pay attention to the paragraph below for an explanation on how to use it.) The standard Condition Scourge build with full Viper stats Viper stats can be a moderately effective tag build in the lab when using specific sigils and runes. Take Rune of Superior Rune of Speed, Scepter + Torch, and Staff. Your Staff should have a Sigil of Superior Sigil of Speed and Sigil of Superior Sigil of Fire. This build is mid-ranged thanks to the range on Sand Shade, so hover near the front of the Zerg. Use Manifest Sand Shade, auto-attacks, and Marks to tag enemies while mobile, making sure to use your shade skills on mob doors for effective AOE (Do NOT use Garish Pillar on mob doors). On bosses, swap to Scepter/Torch for DPS.

With this build, it is worth taking Wells in place of the typical skill bar. Use Well of Darkness, Well of Corruption, and Trail of Anguish. Reserve Wells for tagging groups of enemies when your Shade is down.


With the nerf to Firebrand's Renewed Justice and its poor mobility, Willbender is the more effective guardian option.

Although its virtues provide ample mobility, the tag potential falls somewhat short and must heavily rely on Staff skills like Symbol of Swiftness and Holy Strike along with Sword of Justice. Since many enemies in the Lab are ranged, Wall of Reflection can also be used to gain a large number of tags. A Sigil of Superior Sigil of Frenzy allows us to use our skills more often.

Rushing Justice can be used to tag mobs, though the travel time means it's not completely reliable. Try to practise firing staff skills at one target before immediately charging to a second.

Sub-Optimal Builds

These builds are not recommended for the Labyrinth, but they are listed here because poor warrior needs at least some kind of love.

Click to Open Toggle


Rather than introduce a full build for Warrior, instead it is recommended to just buy Jezza’s Flamethrower and use Rune of Superior Rune of Speed with Sigil of Superior Sigil of Speed or Signet of Rage.

Warrior is extremely poor at tagging, unfortunately, and is not recommended for the Labyrinth.

Other Resources

Pact of the Mad King

The main purpose is to bring in awesome tags for Mad King's Labyrinth during The Shadow of the Mad King's Festival that are easily accessible, and can tag in and out, potentially creating a 24/7 Labyrinth Farm.

Join Pact of the Mad King's Discord

The Overflow Trading Company

This guide was made in partnership with the Overflow Trading Company. You can find their discord Here.

Null's Lab Guide

This document is still mostly up-to-date and contains detailed information on the magic find breakdown, as well as an alternative take on build recommendations. It is full of very useful information and is included here for that reason: https://docs.google.com/document/d/1kNoF1Hx0WueB188dVtTuJQmy8KBdrHnSY3-N9RFC8SA/edit#heading=h.luxi0syil96i

In Closing

Lab farming is a great way to quickly make gold and is accessible to all players, even those under level 80! It is highly recommended that you at least give it a try if you haven't before.


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