Mistplosion Diablo IV Necromancer Build [RDY-4-Launch]

Mistplosion Necromancer BUILD for Diablo IV [RDY-4-Launch]

(Turn to Mist & turn your fallen foes’ corpses into an explosive bloody spectacle. Death is Your Fuel!)

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Diablo IV launches on June 6th, 2023 for PC (Battle.Net), XBOX, & PlayStation with a 4 days Early Access (no wipe) for pre-orders (so kind of really launching June 2nd).

Diablo IV‘s Launch is getting closer and it’s time to make some Ready-For-Launch full Builds/Theorycrafts that should be good for both ‘fresh-into-endgame’ characters as well as late endgame. I’ also plan to evolve them further when the game is released & keep them updated when we get rebalance updates. This is one such build for the Necromancer Class called Mistplosion.

I’ve also made spreadsheets for those builds (see the links below) that have shortlisted the active and passive skills + legendary aspect + unique item + gems & sockets + suggested stat rolls + paragon boards that work well with the build which you can use to tinker. Alternatively, i’ve added build calculator links (mostly needed for the paragons)

This build will be updated post-launch to a new & expanded version when I have more in-game information as reference.

Video Version:

Skill Trees

Below you’ll see ONLY the Active & Passive skills that were selected for this build. For additional skills that can be taken + alternative skill options, you can check my RDY-4-Launch Builds spreadsheet on this link. This build (Mistplosion) is one of the builds on that spreadsheet.

Basic Skill (Resource Generator/Builder) (Required Points: 0 ) Only used temporarily

  • (active) Hemorrhage – Burst an enemy’s blood, dealing 25% (X-XX) damage. Hemorrhage has 20% chance to form a Blood Orb. Lucky Hit Chance: 40% Generates: 7 Essence Damage: Physical ; Tags: Basic, Blood
    • (1st upgrade) Enhanced Hemorrhage After picking up a Blood Orb, your next Hemorrhage also hits nearby enemies and grants 2 additional essence per enemy hit
    • (2nd upgrade – don’t need any of the 2 but temporary you can use ) Initiate’s Hemorrhage Hemorrhage grants 1.6% Base Life as Fortify each time it hits an enemy, and has a 1.5% chance per enemy hit to Fortify you for 100% Base Life.

Core Skill(s) (Resource Spender) (Required Points: 2 )

  • (active) Blood Surge Draw blood from enemies, dealing 20% (X-?) damage, and expel a blood nova, dealing 50% (X-?) damage. Blood Surge’s nova damage is increased by 10% (multiplicative) per enemy drained, up to 50% (multiplicative). Lucky Hit Chance: 20% Essence Cost: 30 Damage: Physical ; Tags: Core, Blood
    • (1st upgrade) Enhanced Blood Surge Blood Surge heals you for 1% of your maximum Life when drawing blood from enemies. If 4 or more enemies are drawn from, then Heal for an additional 1.0% of your Maximum Life.
    • (2nd upgrade – my pick of the 2) Supernatural Blood Surge Each time an enemy is hit by Blood Surge’s nova, you are Fortified for 1% Base Life. While you have Fortify for over 50% of your Maximum Life, Blood Surge deals 20% (multiplicative) increased damage.
  • (passive) Hewed Flesh Lucky Hit: Your damage has up to a 4%/8%/12% chance to create a corpse at the target’s location.
  • (passive) DID NOT INVEST in other Core passives to save points

Macabre Skills (Required Points: 6 )

  • (active) Corpse Explosion Detonate a Corpse, dealing 75% (X-XX) damage to nearby enemies. Lucky Hit Chance: 40% Damage: Physical ; Tags: Corpse, Corruption
    • (1st upgrade) Enhanced Corpse – Corpse Explosion’s radius is increased by 15%.
    • (2nd upgrade – my pick of the 2) Plagued Corpse Explosion Corpse Explosion deals 10% (multiplicative) increased damage to enemies that are Slowed, Stunned or Vulnerable. These damage bonuses can stack.
  • (active) Blood Mist Disperse into a bloody mist, becoming Immune for 3 seconds. Your Movement Speed is reduced by 20.00% and you periodically deal 2% (X-?) damage to enemies, healing for 0.5% of your Maximum Life. Lucky Hit Chance: 9% Cooldown: 20 Seconds. Damage: Physical ; Tags: Macabre, Blood
    • (1st upgrade) Enhanced Blood Mist Casting a Skill that Overpowers reduces the cooldown of Blood Mist by 2 seconds.
    • (2nd upgrade – my pick of the 2) Ghastly Blood Mist Blood Mist leaves behind a Corpse every 0.95 seconds.
  • (passive) Grim Harvest Consuming a Corpse generates 3/6/9 Essence.
    • (upgrade) Fueled by Death You deal 4%/8%/12% (multiplicative) increased damage for 4 seconds after consuming a Corpse.
  • (passive) DID NOT INVEST in other Macabre passives to save points

Corruption Skills (Required Points: 11 )

  • (active) DID NOT TAKE a Corruption active due to using 2 minions on the skillbar
    • (1st upgrade)
    • (2nd upgrade – my pick of the 2)
  • (passive) Death’s Embrace Enemies in melee range take 2%/4%/6% (multiplicative) more damage from you and deal 3%/6%/9% less damage to you.
  • (passive) Skeletal Mage Mastery – Increase the damage and Health of your Skeletal Mages by 15%/30%/45% (multiplicative).
  • (passive) DID NOT INVEST in other Corruption passives to save points

Summoning Skills (Required Points: 16 )

  • (active) Corpse Tendrils Veins burst out of a Corpse, pulling in enemies, Stunning them for 3 seconds, and dealing 20% (X-?) damage to them. Lucky Hit Chance: 20% Cooldown: 11.0 Seconds. Damage: Physical ; Tags: Corpse, Corruption
    • (1st upgrade) Enhanced Corpse Tendrils Enemies who are in range of Corpse Tendrils are Slowed by 50% before being pulled.
    • (2nd upgrade – my pick of the 2) Horrid Corpse Tendrils Enemies damaged by Corpse Tendrils are made Vulnerable for 3 seconds.
  • (passive – only put 1 point into this) Gruesome Mending While below 50% Life, you receive +10%/+20%/+30% more Healing from all sources.
    • (upgrade) Coalesced Blood While Healthy your Blood Skills deal 6%/12%/18% (multiplicative) increased damage. Note: Need to invest into this node to unlock BOTH Tides of Blood & Drain Vitality
    • (upgrade) Transfusion – DID NOT INVEST in this to save points
    • (upgrade) Drain Vitality Lucky Hit: Hitting enemies with Blood Skills has up to 25% chance to Fortify you for 2%/5%/8% Base Life.
    • (upgrade) Tides of Blood Your Blood Skills deal 5%/10%/15% (multiplicative) increased Overpower damage. This bonus is doubled while you are Healthy.
  • (passive) Necrotic Carapace – When a Corpse is formed from your Skills or your Minions, Fortify for 2%/4%/6% Base Life.
  • (passive) DID NOT INVEST in other Summoning passives to save points

Ultimate Skills (Required Points: 23 )

  • (active) Blood Wave Conjure a tidal wave of blood that deals 90% (X-?) damage and knocks enemies back. Lucky Hit Chance: 30% Cooldown: 50 Seconds. Damage: Physical ; Tags: Ultimate, Blood
    • (1st upgrade) Prime Blood Wave Blood Wave Slows enemies by 50% for 4 seconds.
    • (2nd upgrade) Supreme Blood Wave Blood Wave leaves behind 3 Blood Orbs as it travels.
  • (passive) DID NOT INVEST in any Ultimate passives to save points

Specializations (Required Points: 33 )

  • (passive) Rathma’s Vigor Increase your maximum Life by 10%. After being Healthy for 15 seconds, your next Blood Skill Overpowers.

Book of the Dead (Class Mechanic):

This build is all about creating as many corpses as possible and consuming them with Corpse Explosion directly or with the auto-cast via Blood Mist. For that we don’t need minions as much. However, there’s no room for a basics kill on the skillbar so we’ll use Cold Mages to generate essence in case there are no corpses nearby to consume for essence.

I’d advise taking only Cold Skeletal Mages for this build & Sacrifice the Skeletal Warriors & Golem. The types + upgrades/sacrifices are:

  • Skeletal Skirmishers: Sacrifice so that we get extra Crit Chance
    • Description: Your critical strike chance is increased by 5%, but you can no longer raise Skeletal Warriors.
  • Cold Mages: Upgrade 1 is amazing to get our Essence generation going even if we don’t have a corpse to consume to trigger the Grim Harvest passive
    • Description: Each time your Cold Mages damage enemies with their primary attack, you gain 2 essence.
  • Iron Golem: Sacrifice so that we get extra Crit Damage
    • Description: You deal 30% (multiplicative) increased critical strike damage, but you lose the ability to summon a Golem.

Unique Item

In Diablo IV apparently (I have multiple sources that confirmed this) we can equip more than one unique item at the same time (not so ‘unique’ if we can get decked out in full uniques I guess). It seems that the one unique per build idea that Unique inherited from the Mythical gear they supposedly replaced was scrapped even before the closed beta tests. My top pick will be the following one but check the notes under the Aspects list for some additional picks:

Black River (Scythe)

[0.06] Life On Kill

Corpse Explosion consumes up to 4 additional Corpses around the initial Corpse, dealing x[N] increased damage and with a +[X%] larger radius per additional Corpse.

[49 – 63] Intelligence
+[21 – 35]% Damage to Healthy Enemies
+1 Ranks of the Fueled by Death Passive
+[2 – 4] Ranks of Corpse Explosion

“The scrolls describe a river of tar that separated the living from the land of the dead. Any unfortunate soul who tried to cross would be dragged down into oblivion.” – Notes of Scholar Kamien

Sockets & Gems

There are various possible good/viable choices for the gem slots. I’ve shortlisted what works by slot. I’d recommend picking one of those:

Weps: Ruby, Saphire, Skull or Emerald.
Armor: Skull, or Saphire.
Jewelry: Diamond unless you need specific resistance more than all.

XYZ Diamond (Requires Level XY)

• Weapon: +N% Ultimate Skill Damage
• Armor: +N% Barrier Generation
• Jewelry: N% Resistance to All Elements

+5%/+5%/5 for chipped (the 2nd grade at lvl 20)

XYZ Skull (Requires Level XY)

• Weapon: +N Life On Kill
• Armor: +N% Healing Received
• Jewelry: +N Armor

+13/+5%/+170 for chipped (the 2nd grade at lvl 20)

XYZ Ruby (Requires Level XY)

• Weapon: +N% Overpower Damage
• Armor: +N% Maximum Life
• Jewelry: N% Fire Resistance

+15%/+5.5%/14.3% for chipped (the 2nd grade at lvl 20)

XYZ Emerald (Requires Level XY)

• Weapon: +N% Critical Strike Damage to Vulnerable Enemies
• Armor: +N Thorns
• Jewelry: N% Poison Resistance

+7.5%/39/14.3% for chipped (the 2nd grade at lvl 20)

XYZ Saphire (Requires Level XY)

• Weapon: +N% Critical Strike Damage to Crowd-Controlled Enemies
• Armor: N% Damage Reduction While Fortified
• Jewelry: N% Cold Resistance

+7.5%/5%/14.3% for chipped (the 2nd grade at lvl 20)

Legendary Aspects / Powers

I will only list the Legendary Aspects that have been selected for the build and the slots in which I advise putting those. For in-depth information you can check my RDY-4-Launch Builds spreadsheet on this link. This build (Mistplosion) is one of the builds on that spreadsheet.

  • Helm: Exploiter’s Aspect
  • Amulet: Aspect of Grasping Veins
  • Chest: Viscous Aspect
  • Pants: Aspect of the Embalmer
  • Gloves: Blood-bathed Aspect
  • Boots: Coldbringer’s Aspect
  • Ring 1: Aspect of Explosive Mist
  • Ring 2: Blood-soaked Aspect
  • 1H Weapon: *Edgemaster’s Aspect Until The Unique goes here (see notes below)
  • Off-hand: Cadaverous Aspect
  • 2-H Weapon (if you decide to use one): *see notes below
NOTE: Edgemaster's Aspect is a great choice to use Until The Unique goes on that 1-handed weapon slot.

NOTE 2: If you temporarily use a 2-handed weapon before you get the 1-h unique Scythe, then priority goes to Cadaverous Aspect over Edgemaster's Aspect

Paragon Boards:

Use the links below to check the paragon boards selected and the nodes I’ve taken. One link is for what the boards will look like at lvl 96 without any paragon points from renown (so more paragon points will be obtained on the way to 100 as well as from renown. The other link will be what the boards will look like when fully maxed out on paragon points.

Suggested Gear Rolls to look out for (NOT in complete order of priority):

I’ve shortlisted 33 different affixes that work well with the build of almost 300 total. I’ll highlight in Orange the ones I think should get higher priority

Bonus to All Damage
Critical Strike Chance/Critical Strike Damage Bonus
Critical Chance / Critical Damage with Blood Skills
Critical Strike Chance/Critical Strike Damage with Core/Macabre Skills
Damage with Core/Macabre Skills
Lucky Hit Chance
+ X Ranks to Core/Macabre Skills
Overpower Damage
Blood Damage Bonus
Lucky Hit Chance with Blood Damage
Resistance to All Elements
Cooldown Reduction
+ % Critical Chance / Critical Damage with Blood Damage
+ % Damage to Elites
+ % Blood Damage to Elites
Damage Upon Killing an Elite
+ % Critical Strike Chance with Blood Damage Against Elites
Damage Reduction for X Seconds After Killing an Elite
+ % Damage for X Seconds After Killing an Elite
Damage Reduction from Elites
Higher Priority
+ % Minion Damage
+ % Damage to Enemies affected by Blood DoT
+ % Minion Resistance to All Elements
+ % Minion Attack Speed
+ % Maximum Minion Life
Lucky Hit: Critical Strikes From Your Minions Have up to a 5% Chance to Reduce Enemy Damage Dealt by X% for N Seconds
Bonus: Only worth it If the minions are not nerfed too much.
+ All Stats
Damage while Healthy
Damage vs Healthy Enemies
Damage vs Injured Enemies
Damage vs Close Enemies
Weapon Damage (not sure if there are any bonuses to that as rolls)
Essence Generation
Essence Regeneration
Essence On Kill
Movement Speed
Attack Speed
Resource Cost Reduction
Lower Priority

Useful Links (Spreadsheets & more):

For all of my Diablo IV RDY-4-Launch Theorycrafts/Builds: This Spreadsheet

For my Diablo IV Pre-Launch Class Skill Trees (can be used as mini-calculator): This Spreadsheet

For all of my Diablo IV Pre-Launch Theorycrafts/Builds: This Spreadsheet

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This concludes the Mistplosion Necromancer Build for Diablo IV. If you’re interested in the game below are links to the various platforms where one can buy it (you can just click the links to open a new tab):

PC (Battle.Net)



Official Website