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Boulder Druid Endgame Build Guide

Season 8 - Belial's ReturnEndgame

Last Updated:May 1, 2025|Changelog|FAQ

Welcome to the Boulder Druid Endgame Guide! Boasting a simple and effective playstyle, the Boulder Druid assembles large boulders around itself, pulverizing and knocking back anything that dares to come close.

At its core, this build revolves around the Dolmen Stone Unique, which allows you to empower your Boulder to orbit around you while Hurricane is active. In addition, Dolmen Stone provides a considerable damage multiplier, which is further increased for each active Boulder you have, up to a maximum of ten. Unfortunately, because of the build-defining characteristics of this Unique, it is not recommended to play Boulder without first acquiring the Dolmen Stone.

To efficiently harness the full potential of the Boulder Druid, utilize two additional Uniques in Mjölnic Ryng and Vasily's Prayer. The former satisfies the high cost Spirit consumption and grants you permanent Vulnerable uptime, while the latter enables several Shapeshifting and Werebear bonuses. This build takes advantage of Overpower from multiple sources, including Xan, Provocation and Obsidian Slam. You further increase the damage of your Overpowers with the Key Passive Ursine Strength, while also maximizing your Life and Fortify values. By endgame, the Boulder Druid features high Maximum Life and great Mobility.

In this guide we teach you all you need to know to be successful with the Boulder Druid in Diablo 4. Lets begin!

Requirements for this build

  • Dolmen Stone
  • Mjölnic Ryng
  • Vasily's Prayer
Boulder Druid Endgame Setup
Note

This build guide assumes you have a Level 60 Character and unlocked Torment 1. To get there, level up with one of our Druid Leveling Guides. See how this Build compares against others with our various Build Tier Lists.

Boss Powers

Season 8 - Belial's Return
Boulder Druid

Season 8 is the Season of Belial's Return. It allows you to tap into Boss Powers obtained from World, Event, and Lair Bosses throughout Sanctuary. The new seasonal mechanic, Apparition Incursions, is available at any difficulty level and gives you the opportunity to unlock a subset of these powers very early on. Various Apparition Monsters appear in these special timed events throughout Sanctuary. Defeating these monsters spawns 1 of 10 Apparition Bosses to hunt you down and defeating them grants you their Boss Power. After defeating the first Boss, continue the event for a chance to fight a second Apparition Boss, after which Belial himself joins the fray.

There are 24 Boss Powers available and the first time you defeat one of these Bosses, you claim their power for yourself. Boss Powers each have Main and Modifier effects to boost your build. 13 are available in all difficulties (from Apparition Incursions and World Bosses), while 11 can only be acquired in Torment 1 difficulty or higher from Lair Bosses and Lilith. You can equip 1 Main Power and 3 Modifiers, and all powers can be upgraded up to Rank 20, increasing the potency of both the Main and Modifier effect. You use Spectral Ash to upgrade these powers, dropped from Apparition Incursions and by defeating any Bosses. Boss Powers also scale with your Paragon Level, growing stronger as you progress.

Best-in-Slot Boss Powers

Main Power

  • Grigoire's Lightning Square - Is a short Cooldown Boss Power that triggers on Core Skill cast. Metamorphic Stone adds the Core Skill tag to Boulder, allowing you to trigger this Boss Power often. This is important for setting off your Modifiers, which are all considerable damage multipliers to this build.

Modifiers

  • Sinerat's Flames - Provides a sizeable damage multiplier to Boulder thanks to Savage Boulder's Poison conversion. Ensure you stack Poison Resistance to increase this Power's effect to its maximum.
  • Harbinger of Hatred's Volley - A straightforward damage buff that triggers on Main Boss Power activation. The added utility of applying Vulnerable to all surrounding enemies is overshadowed by Supreme Cataclysm, but it does find value in the Pit Pushing variant where Vulnerable is not as readily available.
  • Belial's Eye Beams - Grants you unbreakable Stealth and a generous Overpower damage multiplier. The Stealth component synergies with Shroud of False Death and provides an additional layer of defense, as enemies are unable to target you while in Stealth.
Boulder Druid Endgame Boss Powers

Alternate Boss Powers

  • Lord Zir's Blood Pool - An alternative Main Boss Power that has the added benefit of triggering on any damage, not just Core Skills. However, you are limited to 3 pools and it features a longer Cooldown.
  • Ashava's Poison Breath  - A very strong early game Main Boss Power. It comes with the added benefit of dealing Poisoning damage, prolonging Poison on enemies.
  • Blackmailer's Sabotage - This Modifier grants a sizeable Barrier when you gain Fortify, which helps with survivability since this build generates large amounts of Fortify.
  • Hatred's Embrace's Haste - As a Modifier it provides a high amount of Critical Strike Chance for the low cost of having Shadow Resistance. Use this Power early on to help you reach 100% Critical Strike Chance.

Learn more details about the season theme in our full Season Guide.

Skills & Gameplay

Season 8 - Belial's Return
Boulder Druid
  • Claw serves as a backup Spirit generator and allows you to easily maintain Shapeshifting bonuses. Specifically, Claw is used because it is a Werewolf Skill. Note that Shred replaces your Basic Skill in the Speedfarming variant.
  • Boulder is your main damage Skill, summoning powerful Earth Boulders that Knock Back enemies and deal massive AoE damage. With Metamorphic Stone, Boulder becomes a Core Skill and does even more damage as it scales with all Core Skill related multipliers. Aim to keep 10 Boulders active at once, taking advantage of the Weapon Temper that allows you to cast Boulder twice. Savage Boulder converts your Boulder damage to Poison damage, and applies additional Poisoning damage, enabling your Poison synergies.
  • Cyclone Armor applies Vulnerable to enemies it hits, and recently got a damage multiplier functionality added to Innate Cyclone Armor. This Skill also activates Vigilance and Backlash when cast.
  • Earthen Bulwark provides you with a Barrier and Unstoppable to break free from Crowd Control and/or activate Tibault's Will.
  • Hurricane provides passive AoE Damage Reduction and is necessary in order for Boulder to orbit around you. It additionally enables Stormshifter's.
  • Cataclysm is your Ultimate Skill, enabling infinite Spirit and Vulnerable uptime while active, thanks to Mjölnic Ryng. The Boulder Druid's Pit Pushing variant replaces Cataclysm with Petrify due to its Critical Strike Damage multiplier.
Boulder Druid Endgame Skill Tree

Skill Passives

  • Ursine Strength is the Key Passive of choice, both for the added toughness and to synergize with the build's many guaranteed Overpowers.
    • One of these sources comes from ‍Provocation.
  • Envenom provides a massive Critical Strike Damage bonus against Poisoned enemies.
  • Circle of Life (from Shroud of False Death), Vigilance, Defensive Posture (from Vasily's Prayer) and Heightened Senses round out your defense and help keep you alive.

Skill Rotation

  • Begin by casting your Hurricane to activate your AoE Damage Reduction.
  • Follow up with Cataclysm for a sizeable damage buff and unlimited Spirit.
  • Cast Boulder to begin damaging and Knocking Back enemies, stacking up to 10 Boulders at once. Thanks to the Cast Twice Weapon Temper, you won’t need to cast Boulder 10 times to reach its full potential. Boulder's icon on your Skill Bar displays how many Boulders are active at a give time.
    • It is recommended you cast Boulder once every second to trigger your Runes, but also to maintain 10 Boulders consistently, as Boulders despawn after 9 seconds.
  • Use Cyclone Armor and Earthen Bulwark often in battle as they are on a short Cooldown and trigger Vigilance, Backlash and Tibault's Will respectively.
  • Ensure you have 100% uptime on Hurricane and Cataclysm, recasting them as they come off Cooldown.
  • Lastly, use Claw rarely to enable Shapeshifting synergies by turning into a Werewolf, or if necessary, to generate Spirit.

Druid Specialization

Druids can choose 5 out of 16 Passive bonuses (Boons) from 4 different spirits. You have to bond with one of the Spirits in Túr Dúlra to activate two of its Boons. The remaining Spirits can only have one Boon each. Use the following Boons:

Deer Spirit: Wariness
Eagle Spirit: Avian Wrath
Wolf Spirit: Calamity
Snake Spirit: Obsidian Slam

Bond with the Eagle Spirit and activate Iron Feather.

Boulder Druid Endgame Spirit Boons

Learn more details and how to unlock this system in our full Druid Class Overview.

Paragon & Glyphs

Season 8 - Belial's Return
Boulder Druid
!
Important

Carefully check your Paragon Boards to ensure correct board rotation. Glyphs go from a radius of 3 to 4 at level 15 and from 4 to 5 at level 46. Some of them cannot be activated before reaching these thresholds! Progress through The Pit to rank up your Glyphs.

Use the slider to see the progression steps. At around Paragon 200, leveling slows down significantly and all important Rare clusters, Legendary nodes and Glyph sockets should be unlocked. Afterwards, you can min/max your build with minor tweaks and by picking up additional smaller nodes.

← Use the slider for progression steps →
Boulder Druid Endgame Paragon
Tip

Some Glyph position swaps, board changes and other pathing adjustments may occur as you unlock your full potential. The setup displayed by default is the final version of the build before spending additional points that do not significantly impact your character's power.

Glyph Leveling Priorities

To Level 15

  1. Spirit
  2. Dominate
  3. Earth and Sky
  4. Headhunter
  5. Keeper

To Level 46

  1. Dominate
  2. Earth and Sky
  3. Spirit
  4. Keeper
  5. Headhunter

Learn more details about the Paragon System in our in-depth Paragon Boards and Glyphs guide.

Runes

Season 8 - Belial's Return
Boulder Druid

You can have up to two Runewords in your setup, each consisting of one Ritual and one Invocation Rune. Socket them in Two-Handed Weapons if your build calls for them, otherwise place them into your Armor pieces to replace normal gems. The Boulder Druid focuses on the following combos:

Best in Slot

  • Igni + Wat - Grants you the Necromancer's Decrepify, slowing and executing all enemies under 10% Health. More importantly, it is the best low-cost Rune that pairs nicely with Xol for large Offering gains.
  • Xol + Xan - Gives you guaranteed Critical Strikes that Overpower every two Xol activations, resulting in a high uptime on Overpowers when paired with other additional sources of Overpower such Provocation and Obsidian Slam.

Alternative choices

If you haven't unlocked the final setup or found the top runes, you can also benefit from these options:

  • Jah - This replaces Evade with Teleport granting greater travel distance and Unstoppable, used in the Speedfarming variant.
  • Tam/Bac- Strong Offering generating alternatives if you do not have access to Igni.
  • Xal - Supplies a big Maximum Life multiplier, which boosts both survivability and Overpower damage.
  • Yom - Petrify grants Spirit when activated and Supreme Petrify applies the Critical Damage Multiplier, provided you are using Petrify on your Skill Bar.
  • Que - Investing 2 Skill Points to reach Enhanced Earthen Bulwark grants you Unstoppable and a huge Barrier without the need for Earthen Bulwark on your Skill Bar.
  • Gar - Useful to reach 100% Critical Strike Chance more reliably early on.
  • Cem - Being a Magic Rune you are more likely to find it early on and the Offering generation is serviceable.

Learn more about Runes and how they work in our dedicated Runewords Overview and Runewords Tier List.

Mercenaries

Season 8 - Belial's Return
Boulder Druid

Mercenaries are unlocked during the Vessel of Hatred campaign and assist you in battle. There are 4 separate Mercenaries to choose from, each with their own skill trees and abilities. You can have one Hired (permanent) mercenary during solo play and a Reinforcement who assists you from time to time in certain situations.

  • Hired: Subo

Subo marks enemies and resources on your mini-map, and offers a solid damage buff while Cover Fire is active thanks to Opening Fire. He is especially good early on due to Ready At Hand, a Passive that helps you traverse the battlefield quicker when fighting Elites.

  • Reinforcement: Raheir

Raheir's Bastion is great at keeping you alive and safe from Crowd Controls, thanks to its 90% Damage Reduction and Unstoppable. Alternatively, Raheir is always a great Hired option to help fix Armor or Resistances. However, be aware he is not available in party play.

Boulder Druid Mercenaries

Learn more about Mercenaries and how they work in our dedicated Mercenaries Overview.

Stat Priorities & Item Progression

Season 8 - Belial's Return
Boulder Druid

To enable the Boulder Druid to perform optimally, hunt for these stats on your gear with good rolls and aim to Temper ⚒️ & Masterwork Crit ↑ them accordingly. The green arrow ↑ indicates which affix is most impactful to Masterwork Crit, and it does not indicate how many Masterwork Crits you need on that particular affix. Keep in mind that certain stats, such as Armor, Resistances, Extra Size Tempers, Attack Speed, and more, have caps that may affect your priorities according to the items and Paragon points available at that moment.

Recommended Endgame Stat Thresholds

  • 100% Uptime for Hurricane
  • 95%+ Critical Strike Chance (including Earth Critical Strike Chance Temper)
  • 250%+ Damage vs. Crowd Controlled
  • 2700+ Willpower
  • Armor Capped 1,000
  • Resistance Capped 70%+
  • 15,000+ Life
  • 60%+ Nature Magic Cooldown Reduction
  • 180%+ Movement Speed
Ancestral
Mythic
Pit Pushing
Boulder Druid Ancestral Stat Priorities
Boulder Druid Mythic Stat Priorities
Boulder Druid Pit Pushing Stat Priorities

Item Progression Goals

Before you dive into the Endgame with the Boulder Druid, take a look at this overview of the items used in the build. See below for further details about the different progression steps and variants. Some of your Skill Tree choices depend on what Legendary Aspects and Unique items are available to you. Keep in mind that while we can guarantee that everyone has access to the same Codex of Power Aspects, the exact progression is different for everyone.

Ancestral
Mythic
Pit Pushing
Boulder Druid Ancestral Item Progression
Boulder Druid Mythic Item Progression
Boulder Druid Pit Pushing Item Progression

Learn more details and how to farm Legendary Aspects and Uniques in our General Farming Guide.

Build Variants

Season 8 - Belial's Return
Boulder Druid

This section is designed to guide your Boulder Druid into the very late endgame using the Ancestral and Mythic variants. At the final step, you should be fully decked out with a great all-rounder build. From there, follow the other min/max variants if you want to optimize around certain activities such as Pit Pushing, Speedfarming and more.

Ancestral
Mythic
Speedfarming
Pit Pushing

The goal here is to progress through the Torment difficulties as you unlock Ancestrals, Paragon points, all Legendary Aspects, Temper mods and the most important Uniques to pilot this build. Some Legendary Aspects are used temporarily to fill slots that may be replaced with more Unique items later on.

Gear & Skills

Ancestral Boulder Druid Gear
Ancestral Boulder Druid Skills
  • The Dolmen Stone is one of three important-to-get Uniques in order to get the Boulder Druid online.
    • You can find this item from Duriel, King of Maggots and/or Andariel.
  • Your other two core Uniques, Mjölnic Ryng and Vasily's Prayer can be found from Lord Zir and Echo of Varshan respectively.
    • If you're having difficulty defeating any Boss, remember to lower your Torment tier for an easier fight.
  • Once you've acquired the core Uniques for this build, you essentially are close to the final version. The addition of other Uniques / Mythic Uniques from this point are more build-enhancing than build-enabling.
  • Insatiable Fury is a very strong defensive and offensive Unique, nearly on par with its eventual Mythic replacement.
    • You can acquire this item from Grigoire, the Galvanic Saint.
  • Tibault's Will offers a healthy amount of stats and Damage Reduction, mainly used in synergy with Earthen Bulwark for a solid damage multiplier.
    • This Unique can be farmed from Duriel, King of Maggots and/or Andariel.
  • With the build is assembled, your goal is to ensure you have 100% uptime on Hurricane as soon as possible, and later on Cataclysm, through Tempers and Masterworking Nature Magic Cooldown on Dolmen Stone.
  • As you upgrade your gear to Ancestrals with more Masterworking levels and reach higher Paragon, you can focus more and more on replacing Armor & Resistance rolls with better stats, but ensure to stay capped at 1000 Armor and 70%+ Resistances for the difficulty you're currently in.
  • From the time you reach Earthen Devastation in your Paragon Board, be mindful of your Damage to Crowd Controlled Enemies bonus.
    • The target for this stat is 250%, and your personal value will depend on the nodes taken on this board and the level of your Earth and Sky Glyph.

This is the final version of the build's progression, including all regular Unique items, Mythic Uniques, Legendary Aspects, Temper mods and Masterworking, leaving you with a great all-rounder build for all content in the game. Additional variants use this as a baseline to optimize around certain activities.

Gear & Skills

Mythic Boulder Druid Gear
Mythic Boulder Druid Skills
  • Ring of Starless Skies is a very strong item due to its large Critical Strike Chance, Core Skill Ranks, Attack Speed and powerful Unique effect.
    • The All Resistance implicit is doubly good for reaching the Resistance cap.
  • Shroud of False Death is an excellent addition, as its +1 to All Passive skills implicit is a massive offensive and defensive boon.
    • On top of that, its All Stats roll is helpful for capping Critical Strike Chance, Armor, Resistances, and meeting Rare Node requirements in the Paragon board. In addition, this Mythic comes with a large amount of Maximum Life, aiding your survivability and granting you additional Movement Speed while invisible.
  • Though not nearly as much damage, Tyrael's Might is always worth consideration as you ascend through Torment tiers to combat the Resistance penalties.
    • Socket Skulls in your jewelry if you go this route, and replace any excess All Resistance affixes on gear with Willpower/Maximum Life where possible.
  • At this point, ensure you have Earthen Devastation capped.
    • The target for this stat is 250% Damage vs Crowd Controlled bonus, and your personal value will depend on the nodes taken on this board and the level of your Earth and Sky Glyph.

This Speedfarming variant optimizes the build for easy activities like HelltidesWhispersNightmare Dungeons and lower Pit Tiers after you have finished the Mythic variant and reached a plateau in your progression.

Gear & Skills

Speedfarming Boulder Druid Gear
Speedfarming Boulder Druid Skills
  • Slot in Bac + Jah to leverage the Sorcerer's Teleport for extra Mobility, on a short 2 second Cooldown.
  • Replace 3 skill points from Heightened Senses with Shred, specifically Primal Shred.
    • This grants you another Mobility Skill, allowing you to dash to enemies while Jah is on Cooldown.
  • Trade in Wariness for Advantageous Beast to make up for the Movement Speed loss from Heightened Senses, and reach the Movement Speed cap.
  • With the addition of Airidah's Inexorable Will you can pull in enemies when you cast Cataclysm, granting you the ability to group up enemies, which is especially useful in activities such as Infernal Hoards.
    • Masterwork Ultimate Cooldown Reduction to cast Cataclysm as often as possible, thus leveraging Airidah's pulls often.

This setup optimizes the build to push the highest possible Tiers in The Pit after you have finished the Mythic variant and reached a plateau in your progression.

Gear & Skills

Pit Pushing Boulder Druid Gear
Pit Pushing Boulder Druid Skills

Gear

  • Mjölnic Ryng is replaced with a Legendary Ring which provides you with a powerful Aspect in Natural Balance and even more Willpower and Maximum Life. More importantly, it allows you to take advantage of Prime Petrify in addition to all these benefits.
  • Masterworks and affixes change slightly to account for the gear swap. For more information consult the setup available above.

Skills and Boons

  • Petrify replaces Cataclysm, granting you a massive Critical Strike Damage multiplier in Prime Petrify.
    • Against bosses, Supreme Petrify allows you to cast Petrify frequently, giving you Spirit in return and activating Catastrophe often.
  • Take advantage of Storm Strike to maintain good Natural Balance uptime. This Skill comes with the added benefit of applying Vulnerable to enemies, which alongside Enhanced Cyclone Armor helps satisfy your Vulnerable needs.
  • Take Nature's Reach for extra damage against enemies you hit at the outer edge of your Hurricane.
    • When possible, position yourself such that you are dealing damage with the extremities of your Boulder to take advantage of this Passive.
  • Utilize Gift of the Stag for its passive Spirit regeneration. Additionally, replace Calamity with Energize.
    • Note that Energize alongside Gift of the Stag and Ring of Starless Skies's Resource Cost Reduction is enough to maintain your Spirit, as long as you cast Boulder sparingly (no more than once every second).

Consumables

  • The Pit Pushing variant looks to maximize damage by solving Armor and Resistances through Consumables.
    • The Elixir of Fortitude II boosts Maximum Life, which synergizes with Overpower to significantly enhance damage output, making it the most effective Elixir for maximizing your build's potential.
    • Soothing Spices bridges the gap and caps both your Resistances and Armor, while also granting +2% Maximum Resistance to All Elements.
    • Blessed Guide and Reddamine Buzz provide additional Willpower and Maximum Life, helping to further increase your Overpower damage.

Mercenaries

  • Replace Subo with Raheir for the additional 15% Resistance to All Elements, and pick up Ground Slam, Bastion and Inspiration for some more damage.
    • Opt for Aldkin's Field of Languish reinforcement for additional slows and damage mitigation.

Tips and Tricks

  • When fighting monsters in high tiers of the Pit, remember that after Crowd Controlling Elites for 5 seconds, they become Unstoppable for 8 seconds. This may be the right moment to start kiting them around because your damage decreases significantly and they can freely retaliate.
  • In high tier Boss fights, beware that some of your conditional damage and Damage Reduction modifiers are not active at all times. This means Bosses generally deal more damage against you than regular monsters and you have to prioritize dodging the attacks from Shadow Bosses, while you deal significantly reduced damage outside of Boss Staggers.

FAQ & Mechanics

Season 8 - Belial's Return
Boulder Druid

Once a guide is released, many players have questions on why and how we are approaching certain choices. In this section you can find the answers to the questions that have been asked the most.

Mechanics

Summary

Season 8 - Belial's Return
Boulder Druid

The Boulder Druid focuses on AoE damage using Dolmen Stone and Metamorphic Stone. By combining Shapeshifting synergies from Vasily's Prayer with Mjölnic Ryng's powerful Spirit management, this build delivers devastating damage while maintaining excellent survivability.

  • Maximize Boulder Damage: Use the Dolmen Stone and Metamorphic Stone to increase the damage of Boulder. Maintain 10 active Boulders. Boulder's icon on your Skill Bar displays how many are active at a time
  • Spirit Management: Aim to acquire Mylonic Ryng for infinite Spirit when Cataclysm is active, allowing you to spam your abilities without downtime. Alternatively, Energize and Lucky Hit Chance: Gain Primary Resource are good options.
  • Shapeshifting Synergies: Equip Vasily's Prayer to transform your Earth skills into Werebear skills, unlocking Shapeshifting synergies for increased damage and survivability.

Credits

Season 8 - Belial's Return
Boulder Druid

Written by Danger

Reviewed by IBoilerUp

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