Mastering Underpin Delve in WoW Patch 11.1.7: Complete strategy & rewards guide
Navigate the Demolition Dome with expert tactics, optimal Brann configurations, and unlock exclusive Underpin Delve rewards in World of Warcraft.

Table of Contents
Key takeaways:
- The Underpin is the Season 2 challenge Delve: This pinnacle encounter serves as the ultimate Delve challenge in The War Within Season 2, similar to Zekvir from Season 1.
- Brann Bronzebeard plays a key role: Brann assists you during the fight, and optimizing his setup with WeakAuras and curios can make the encounter easier.
- Mastering mechanics is crucial: Avoiding Crush, managing puntable bombs, and quickly breaking Recharge are key to victory.
- Solo completion unlocks exclusive rewards: Defeating The Underpin solo before the next season grants unique achievements, titles, and cosmetics.
- Proper preparation makes a difference: Using Deadly Boss Mods (DBM), selecting the right curios, and positioning effectively can significantly improve your chances of success.
With Season 2, The Underpin The War Within new Delve challenge emerges as the pinnacle challenge Delve, pushing players to their limits in the Demolition Dome. As the toughest Delve encounter of the season, it offers exclusive rewards for those who can overcome its deadly mechanics.
This Underpin guide covers everything you need to know about the encounter, from unlocking the delve and gearing up to boss strategies (Both Tier ? and Tier ??) and rewards. Whether you’re aiming to clear it solo for the rarest achievements or just looking to conquer this mechanical menace, we’ve got you covered!
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What is Underpin Delve

The Underpin is a seasonal pinnacle boss introduced in The War Within Season 2. Players can challenge The Underpin in the Demolition Dome Delve, battling through this challenge for valuable rewards.
Recommended gear item level
The Underpin is a challenging encounter, not suited for casual runs. We recommend ensuring your group meets the minimum item level requirement for a smoother experience.
- Tier ?: Recommended Item Level 620.
- Tier ??: Recommended Item Level 640.
Underpin Delve location

The entrance to The Underpin’s Delve is located at the upper level of the Demolition Dome. The Demolition Dome itself is found in Undermine, at coordinates [52.38, 9.42], it’s a massive arena so navigating through it won’t be a problem.
Underpin Demolition Dome entrance:
/way 52.38, 9.42
How to unlock Underpin Delve

To unlock Underpin’s Delve, players must progress through the Delver’s Journey in Season 2 of The War Within, which includes:
- Start with doing Seasonal Refresher quest in Dornogal [47.6, 44.4], where you will learn about new Delves.
- Listen to Brann’s story nearby and start doing I Want My Hat Back quest.
- Once learning about Underpin, you can start doing Defeating the Underpin quest.
- A new storyline featuring Brann Bronzebeard, a goblin crime boss, and the ever-fabulous Johnny Awesome.
- A delve into Earthcrawl Mines, where Brann encounters The Underpin, a goblin piloting a Black Blood-powered mech suit.
- The Underpin stealing Brann’s treasures, curios, and—most importantly—his hat.
Another prerequisite for The Underpin’s Delve tiers:
- Tier ? unlocks when you clear a Tier 7 Delve with lives remaining in Season 2.
- Tier ?? unlocks when you clear a Tier 10 Delve with lives remaining in Season 2.
Some Delves are easier than others. If you’re wondering which Delves are more challenging and which are not, check out the Delves tier list for The War Within.
Optimal Underpin Brann setup

Brann Bronzebeard plays a crucial support role in your battle against The Underpin, providing healing, interrupts, and utility. To maximize his effectiveness, you should set him up with the right tools to ensure optimal performance throughout the fight.
Underpin Brann Roles
The most effective Brann setups for The Underpin Delve involve him playing either a Tank or Healer role, depending on your strategy and group composition.
- Tank Brann is useful for soaking damage, taunting adds, and keeping The Underpin’s attention away from you. This setup is ideal if you are a ranged DPS or healer, as it allows you to focus on dealing damage or supporting without taking heavy hits. Using the Mechasaur EZ-Build Kit curio enhances Brann’s taunting ability, making him more effective at controlling the battlefield.
- Healer Brann ensures that you have sustained healing throughout the fight, making it a safer option, especially if you are melee DPS or not heavily geared. The Dwarven Medicine Tracker WeakAura helps maintain 100% uptime on Dwarven Medicine, ensuring continuous healing over time.
While both setups have their benefits, choosing the right role for Brann in Underpin can significantly improve your chances of success in this high-difficulty encounter.
Are Brann Curios necessary?
While these curios can make the fight smoother, they are not mandatory for success. If you’re confident in your ability to handle the minions and burst down The Underpin, you can adjust your curio choices based on your preferred playstyle. However, using these recommended items will provide a significant advantage and reduce the difficulty of the encounter. Don’t forget to check best Brann curios for general knowledge!
Best Curios for The Underpin Brann
- Mechasaur EZ-Build Kit – This curio grants Brann the ability to taunt, drawing aggro from The Underpin’s minions. Since these adds can quickly overwhelm you, having Brann soak some of the pressure allows you to focus on avoiding mechanics and dealing damage.
- L00T RAID-R – This increases the damage enemies take, making it easier to burn down The Underpin and his minions faster. Since The Underpin’s Recharge mechanic forces a DPS check, boosting your overall damage output helps prevent the fight from dragging on and reduces the risk of him healing back up.
Recommended addons for Underpin

Deadly Boss Mods (DBM) is an essential addon for The Underpin fight, providing real-time alerts, timers, and warnings to help you react swiftly to mechanics. Since the encounter involves multiple avoidable AoEs, add spawns, and a crucial shield phase, DBM ensures you never miss a key moment.
Without DBM, you’ll need to rely solely on visual cues, which can be difficult when dodging multiple mechanics. Using DBM significantly increases your chances of success, especially at higher difficulties where reaction time is critical.
Essential WeakAuras for Brann
- Dwarven Medicine Tracker – This ensures 100% uptime on Dwarven Medicine, Brann’s primary healing ability. By maintaining infinite stack building, you significantly increase your sustainability, allowing you to survive longer without relying solely on your own healing resources.
- Brann Bronzebeard Interrupt Tracker – Since Brann has an interrupt ability, it’s crucial to track its cooldown to avoid overlapping with your own. This helps preserve your interrupts for critical moments, especially against The Underpin’s Recharge, where a well-timed interrupt can prevent him from regenerating health.
Underpin Delve Boss Strategy

The Underpin is a heavily armored mech boss with numerous abilities that require precise movement and awareness. Below is a breakdown of its mechanics and how to handle them.
Underpin Tier ? strategy
The Underpin has the following key abilities:
Ability | Description | How to counter |
---|---|---|
Crush | Boss make a jump that stuns and deals massive damage on an impact in a circular AoE. The AoE zone will show up, after which you need to move away to avoid taking damage. | Move out of the marked area immediately to avoid stun and damage. |
Time Bomb Launcher | Spawns 5 puntable bombs. Bombs will explode after 10 seconds pass. | Kick or roll the bombs into adds to deal heavy damage. |
Flamethrower | A frontal cone fire attack. | Stay out of The Underpin’s frontal cone to avoid fire damage. |
Signal Cronies | Summons 3 minions with: Shoot (unavoidable ranged damage) and Molten Cannon (fires a molten orb, lethal on hit). | Prioritize killing adds quickly using bombs to prevent getting overwhelmed. |
Recharge | Boss starts casting creating a shield that must be DPSed down quickly, or The Underpin heals for 25% of his health. | Focus all damage and bursts on the shield to break it before the heal occurs after the cast. |
Underpin Tier ?? strategy
On Tier ?? difficulty, The Underpin does not gain any new abilities. However, the fight becomes significantly more challenging due to increased damage output, a larger health pool, and two additional adds from Signal Cronies. Mistakes that were manageable in lower tiers become much more punishing, requiring precise execution and optimized damage to succeed.
Key differences in the Tier ?? Underpin encounter:
- Bomb management becomes critical – Proper bomb placement is essential to clearing adds efficiently and preventing the fight from spiraling out of control.
- More damage zones – After launching bombs, Underpin now summons fire whirlies that players must dodge to avoid damage and maintain their health.
- Oil Spill – After Recharge, the oil zone appears. It doesn’t deal damage but slows movement, making the encounter more challenging.
- Add overload – The increasing number of adds can quickly overwhelm the arena, requiring coordinated crowd control and focused target prioritization.
- Increased damage and health – The boss hits harder and has a significantly larger health pool, extending the fight and punishing mistakes more severely.
- Additional adds – Two extra Signal Cronies spawn, making add control a higher priority.
- Tighter execution required – Mechanics that were forgiving in lower tiers now demand precise execution and optimized damage output.
Underpin strategy breakdown
The key to completing The Underpin challenge lies in positioning, add control, and burst damage during critical moments. From the start, you should fight him near walls or the entrance to group up adds for easier bomb management. Always be aware of Crush, a circular AoE that stuns and deals massive damage—move out immediately to avoid getting locked in place.
When Time Bomb Launcher spawns puntable bombs, use them strategically to damage the summoned adds, which should be your top priority. These minions deal constant unavoidable ranged damage and can launch a Molten Cannon orb, which is lethal if not dodged. By properly using bombs, you can clear adds quickly before they overwhelm you.
Throughout the fight, avoid Flamethrower, a frontal cone attack, by staying to the boss’s side or behind him. When The Underpin casts Recharge, you must burn down his shield as fast as possible to prevent him from healing 25% of his health. Successfully breaking it will trigger Oil Spill, which places hazardous puddles on the ground that persist for the rest of the fight. Be mindful of your positioning to avoid running out of safe space.
By managing adds effectively, staying mobile, and dealing burst damage at the right times, you can take down The Underpin without getting overwhelmed by mechanics.
Underpin tips and tricks

The Underpin challenge can be frustrating due to the puntable bomb mechanic. Many players struggle to accurately punt bombs into adds, as it requires interacting with them using mouse buttons. To make this easier, consider reassigning your Interact button to a keyboard key or the mouse wheel for this fight. This allows you to spam Interact more efficiently, reducing frustration—just remember to reset your keybinds afterward! Just don’t forget to to enable Interact Key in settings. You can do it if you search for Options, Controls to enable this beneficial feature.
Another useful trick is Ranged DPS positioning. To make dodging AoE zones and punting bombs easier, ranged players should stay close to The Underpin rather than spreading out. This helps with movement efficiency and overall fight control.
Season 2 Underpin achievements and rewards


Here are all the rewards from the Underpin:
- Let Me Solo Him: The Underpin — defeat Underpin on Tier ?? with no help from other players.
- Breaking the Bank — defeat Underpin on Tier ?? before the next season starts.
- Reward: The Real Deal title.
- My New Nemesis — defeat Underpin on any difficulty before the next season starts.
- Reward: Golden-Gob Propulsion Rig
- The Hataclysm — make Brann Bronzebeard change his returned Brann’s Spare Hat ten times before Season 2 ends.
Conclusion
The Underpin is a formidable challenge in Season 2, requiring skill, coordination, and strategic use of mechanics. Whether you’re chasing achievements or top-tier loot, mastering this fight is worth the effort. Make sure to check our WoW Delves boost to give you the edge in this fight!
Happy pulls!
FAQ
Is The Underpin Delve challenge limited to Season 2?
Yes, The Underpin Delve is a Season 2 challenge in The War Within, similar to how Zekvir’s Lair was the pinnacle Delve of Season 1. You won’t get the rewards and achievements related to The Underpin during the Season 3 of The War Within.
Is The Underpin optional content?
Yes, The Underpin is entirely optional and serves as a challenge Delve for players looking for an extra test of skill. However, completing it offers exclusive achievements, titles, and cosmetic rewards, making it a desirable goal for dedicated players.
How do I unlock The Underpin Delve?
To unlock The Underpin Delve, you must progress through Delves and the Delver’s Journey in The War Within Season 2. The Delve is available in two difficulties: Tier ? unlocks after clearing a Tier 7 Delve with lives remaining, while Tier ?? requires a Tier 10 Delve completion under the same conditions. Additionally, advancing through the Delver’s Journey, the seasonal progression system, is necessary.
What item level is recommended for The Underpin?
For Tier ?, a minimum item level of 620, and for Tier ?? item levelof 640 is recommended for a smoother experience.
Is Deadly Boss Mods useful for this encounter?
Absolutely! DBM provides real-time alerts, timers, and warnings to help you manage The Underpin’s mechanics efficiently, making the fight much easier to handle.
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