Fire Mage DPS Liberation of Undermine Raid Guide — The War Within (11.1.0)
On this page, you will find tips, tricks, and strategies tailored to your Fire Mage for each boss of the following raid: Liberation of Undermine. All our content is updated for World of Warcraft — The War Within (11.1.0).
Introduction
Below, you can find class and spec-specific advice for every fight in Liberation of Undermine. If you are looking for a general overview of the Raid that is not spec-specific, check out our dedicated Liberation of Undermine Boss guides.
On this page, you will find tips and tricks specifically tailored toward Fire Mages and its toolkit based on the recommended talent build. It does not include general tips for mechanics, which are included in the full raid guide instead, whereas this page assumes that you are already familiar with most of the major mechanics of each encounter.
All recommendations are progression-based tips and will not necessarily be the best for an overall DPS ranking.
Liberation of Undermine Boss Guides for Fire Mage
Liberation of Undermine Raid Builds, Tips, and Tricks for Fire Mage
Tips for Vexie Fullthrottle for Fire Mage
Defensive Tips
- Activating
Alter Time right as
Exhaust Fumes goes out and then re-activating it near the end is a great way to avoid all of the damage and minimize healing required on you.
- Make sure to use
Blazing Barrier if you get targeted for
Incendiary Fire.
- Otherwise simply rotate using your defensives during the bonus damage phase to minimize the healing you need.
Cooldown Usage
- Use your cooldowns right at the start of the fight, and then 1
Combustion in-between each bonus damage phase, and delaying every second for each bonus damage phase.
Mechanical Tips
- Use
Alter Time if you get
Spew Oil, after which you can use
Shimmer to drop the oil, and then re-activate Alter Time.
Best Talents
Be sure to make use of the 'Export Talents' button to import the build directly into your game!
Tips for Cauldron of Carnage for Fire Mage
Defensive Tips
- While on the Flarendo side, you should rotate your cooldowns for each
Scrapbomb.
Ice Cold for one,
Greater Invisibility for the second and
Blazing Barrier +
Mirror Image for the third.
Cooldown Usage
- Generally you can use your DPS cooldowns as they become available. However,
keep an eye out of the boss energy bar. If it is close to full, you
should hold your cooldowns a few seconds to align it with the intermission
to get cleave damage out of your cooldowns. This will align pretty well naturally,
only having to delay cooldowns a few seconds. Since
Combustion has such a short cooldown with all of its cooldown reducing effects, make sure you do not delay it more than a few second.
Mechanical Tips
- This is a relatively straightforward boss from a mechanical standpoint.
Make sure to use
Shimmer aggressively to avoid losing uptime when dealing with the mechanics.
Best Talents
If your group requires it, you can spec out of Ice Cold to be able
to solo soak
Scrapbomb.
Be sure to make use of the 'Export Talents' button to import the build directly into your game!
Tips for Rik Reverb for Fire Mage
Defensive Tips
- If targeted by
Sound Cannon, make sure to use a defensive like
Mirror Image +
Blazing Barrier.
Cooldown Usage
- Use
Combustion as it becomes available, unless the intermission is about to come up, then hold on to it for after the intermission as to not waste it.
Mechanical Tips
- During the intermission, if you cannot make it to an Amplifier in time
for the shockwave, or if you are doing other things (like channeling a
different Amplifier), you can use
Shimmer or
Alter Time to safely make it through the shockwave. Shimmer can be used to simply go through it. If using Alter Time, you have to place down Alter Time and then move away from your Alter Time, and then re-activate it after the shockwave moved over your snapback position.
Best Talents
Be sure to make use of the 'Export Talents' button to import the build directly into your game!
Tips for Stix Bunkjunker for Fire Mage
Defensive Tips
- Use one of your defensives if targeted by
Incinerator.
- There are no real hard hitting specific mechanics on this fight
(assuming the mechanics are done properly) to activate
specific defensives for, so I recommend simply rotating your defensives
whenever the rot damage starts being high (
Toxic Fumes) or your healers are struggling.
Cooldown Usage
- You will want to align
Combustion with when the adds are rolled into the boss and take bonus damage. When this happens depends on your strategy and how effective the players in the raid who are doing the garbage rolling are at the rolling. Generally, due to how often you get Combustion, you should not be delaying Combustion more than a few seconds for this.
Mechanical Tips
- Make sure to use
Counterspell on
Scrap Rockets (from the Scrapmasters).
Best Talents
Be sure to make use of the 'Export Talents' button to import the build directly into your game!
Tips for Sprocketmonger Lockenstock for Fire Mage
Defensive Tips
- Rotate defensives on
Unstable Explosions (the explosion after a Foot-Blaster is soaked). Generally a single minor defensive like
Blazing Barrier or
Mirror Image will do, but if it overlaps with
Sonic Ba-Boom, make sure to use either
Greater Invisibility or
Ice Cold.
- If you are soaking rockets from
Rocket Barrage, make sure to always have up either
Blazing Barrier or some other defensive. It is not worth using
Ice Cold on this unless you absolutely have to soak it and you are low health, as you should keep it for nasty overlaps of mechanics like described above.
- If you are soaking a Foot-Blaster, activate
Alter Time right before moving out of the group to the one you will soak, but then after soaking it, do not immediately re-active it. Instead, wait a few seconds until the damage over time effect is (almost) gone before re-activating.
Cooldown Usage
- Use everything on cooldown.
Mechanical Tips
- To minimize damage loss, make sure to use
Shimmer during
Mega Magnetize to move away from the pull in.
- Activate
Alter Time right before the boss reaches 100 energy and casts
Beta Launch, then re-activate it immediately after the boss pulled you away.
Best Talents
Be sure to make use of the 'Export Talents' button to import the build directly into your game!
Tips for One-Armed Bandit for Fire Mage
Defensive Tips
- Note that
Alter Time does not heal you through the heal absorb of
Foul Exhaust, but it does count as healing, so will lower the remaining absorb.
- For the Flame and Coin Token effect of
Reward: Flame and Coin, make sure to cycle defensives.
Greater Invisibility only lasts about half the effects, so use it after a few seconds and not right at the start.
Ice Cold lasts the entire duration so is a great defensive to use for it.
Cooldown Usage
- Use on cooldown. If the adds are about to spawn, you can delay a few seconds if needed, but generally you should use on cooldown and only delay a few seconds at most.
Mechanical Tips
- Make sure to use
Counterspell on the
Overload! casts from the assistants.
- If the Shock and Coin Tokens are inserted and the boss casts
Reward: Coin and Shock, you can activate
Alter Time while far away from the pull in effect and then re-active it when you get close.
Best Talents
Be sure to make use of the 'Export Talents' button to import the build directly into your game!
Tips for Mug'Zee for Fire Mage
Defensive Tips
- During phase 1, the Zee phase is generally higher damage taken, so try to save most of your defensives for this part of phase 1.
- You can soak multiple overlapping circles dropped by soaked mines
by using either
Ice Cold or
Greater Invisibility.
Cooldown Usage
- Timings vary greatly on this fight due to the different available strategies,
where you can move to the different sides at multiple different timers,
and depending on which side you start on. Luckily, you will basically
always have multiple
Combustions available for each phase.
- Make sure to hold
Combustion so that it is available when the boss reaches 40% health.
Mechanical Tips
- If you get targeted by
Frostshatter Spear, you can get into position through the slippery effect easily via
Shimmer.
- You can soak the Zee phase mines effectively by activating
Alter Time right before walking into them and then immediately re-activating it after hitting the mine. It will cancel the falling and heal you to full. You can then follow it up by a minor defensive like
Blazing Barrier and soak the fire circle it leaves behind, or a bigger defensive like
Greater Invisibility and soak multiple overlapping circles.
- During the intermission, after the white arrow soak (
Storming Impact) the boss goes into its rotating mechanic (
Bulletstorm). During this, you can minimize movement by using
Shimmer to move through the Bulletstorm. However, this can be a bit risky as the Bulletstorm is quite big, so a safer approach if you do not feel comfortable doing this, is to activate
Alter Time, then Shimmer away alongside the way the boss is rotating, and then re-activate Alter Time after the Bulletstorm has passed your original Alter Time position.
Best Talents
Be sure to make use of the 'Export Talents' button to import the build directly into your game!
Tips for Chrome King Gallywix for Fire Mage
Defensive Tips
- You can activate
Alter Time before
Scatterblast Canisters and then immediately re-activate it after it went off. The Alter Time heal will not heal you through the heal absorb from
Mechengineer's Canisters, but it will pretty much entirely get rid of the absorb so other healing will work on you almost immediately after the hit.
- Use
Mirror Image right before the boss reaches 50% health so it will last the entire intermission.
- There are many high damage moments on the fight, and which ones you need to use cooldowns on heavily depends on how your group assigns healer cooldowns. However, it is important to keep at least some cooldowns for the intermission, and towards the end of phase 3.
- You can solo soak the phase 3
Tick-Tock Canisters with
Ice Cold if needed. You can also survive it with smaller cooldowns, but if it overlaps with anything else you are at high risk of dying.
Cooldown Usage
- Due to the variance of
Combustion's cooldown, there is no strict schedule to stick to. Simply use Combustion on cooldown, as any delays to it are very likely to lose you total usages. Generally, you will automatically be able to use Combustion during the intermission, but if Combustion becomes ready right before the intermission (50%), make sure to hold it a few seconds so that it can be used in the intermission.
- Other than that, if possible, you can try to align your
Combustion with adds, but this will depend how fast they are grouped up, so generally I recommend just using them on cooldown and maybe delaying a few seconds if adds are about to spawn. Remember: every second you hold on to Combustion, you are not reducing the cooldown of future Combustions with the many sources of cooldown reduction you have, so it is generally best to just throw them out as soon as possible.
Mechanical Tips
- If you are carrying a bomb to the coils, you can use
Alter Time before using
Shimmer, so you can re-activate Alter Time to get back in position and refund a Shimmer charge, since Shimmer charges are really valuable, especially in phase 3.
- There are a lot of things to dodge in this fight, but none of them
require any special tricks to handle them properly. Make sure to make
good use of the free mobility you get from all of the instants like
Pyroblast and
Phoenix Flames, so you can save
Shimmer for when you really need it.
Best Talents
Be sure to make use of the 'Export Talents' button to import the build directly into your game!
General Defensive Usage Notes
Fire Mage has several defensive spells that you should plan to use and rotate
throughout mechanics. You should opt to use the smaller cooldown spells often
as needed with incoming mechanics and save bigger cooldowns like Ice Cold
for large incoming damage.
Blazing Barrier
Mass Barrier
Alter Time, although technically does not reduce damage, it is an incredible tool to heal yourself to full health after a big hit
Mirror Image
Greater Invisibility
Ice Cold /
Ice Block
General Damage Cooldown Usage
Fire Mage has a few cooldowns to think about using optimally on the fights in Nerub-ar Palace:
Combustion — Our main damage cooldown. Although it is initially a 2 minute cooldown, in practice it is significantly less, closer to 45-60 seconds. This is due to many of our cooldown reducing mechanics like
Kindling,
Unleashed Inferno, WoWMageFire111ClassSet2pc and
Shifting Power. Since the cooldown is a bit dynamic, perfectly planning all of its usages throughout a fight is generally not recommended as a streak of bad or good luck can change the timings. Due to this, you should generally use it as soon as it becomes available to get extra usages out of it, and only delaying a few seconds at most for important mechanics.
In addition to the general rotation, you want to keep in mind that your goal is to use your cooldowns as often as possible during an encounter. With that in mind, your secondary goal is to use them at the correct time.
Changelog
- 20 Mar. 2025: Removed unneeded sections.
- 16 Mar. 2025: Updated alter Time usage on healing absorbs due to Alter Time healing changes.
- 13 Mar. 2025: Added Gallywix tips and updated some boss tips based on live kills.
- 04 Mar. 2025: Fixed incorrect talent tree for Sprocketmonger
- 01 Mar. 2025: Added tips based on PTR.
- 20 Feb. 2025: Guide added.
More Mage Guides
Guides from Other Classes
This guide has been written by Dutchmagoz. Dutchmagoz is a Mythic raider in one of the top raiding guilds, Turtles and the owner of the Mage Discord server, Altered Time, where he is involved in all things Mage, and you can reach out to him directly for feedback or questions about the guide.
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