Crest of Desire is a very interesting unique helmet. It has almost no stats in just one socket for a gem, which will be upgraded by up to eight levels, 50% in quality and will deal double damage. We’re putting Herald of Thunder there. Spells like these benefit greatly from extra gem levels.

Build Overview

Elementalists ascendancy offers some great offensive and defensive keystones. Mastermind of Discord and Heart of Destruction will increase your damage, especially if you can reliably apply exposure. Bastion of Elements provides a defensive layer against elemental and reflected damage.

To further enhance damage of the Herald, use medium cluster jewels with Dark Messenger and Empowered Envoy, two Storm Secret rings, Lone Messenger keystone and good staff. Your Herald of Thunder skill gem should reach level 30. Note that spell damage and cast speed have no effect on your DPS.

Your character will need a lot of lightning resistance as Storm Secret deals lightning damage to you. You can also use it to your advantage and hook up multiple spells to cast when damage taken. You will also need Life Leech, E.S Leach and Recoup to survive the self-inflicted damage.

DPS Skills

As you kill shocked enemies, a storm attached to you is created, hitting enemies and dealing lightning damage. With Shaper of Storms, all your hits will cause shock. So, that’s one less thing to worry about.

Note that Herald of Thunder cannot inflict Shock by itself. You will use other skills for that.

Defenses

It’s a build that uses maximum life and Energy Shield. Your total health pool should reach 5k or more. Get the Corrupted Soul keystone. It grants ES based on your maximum life. These resources should be leached and recouped back. You won’t be able to use auras. But you can use Arctic Armour.

Clear Speed

Clear speed is good with Storm Secret rings for more frequent hits and Inpulsa’s Armour for explosions.

Single-Target Damage

The damage against bosses is not high enough to take on Uber Bosses but enough for most content in the game.

Budget

All the unique and rare items are extremely cheap. Good flasks and cluster jewels may be the most expensive. So, if you want to make this build, you’d better prepare enough POE Currency.

Gear, Jewels, Flasks

Around the time you finish the Acts, you should already be able to equip most of the unique items. Be wary, with two Storm Secrets and no Agnerod South. You will take a lot of lightning damage unless you plan to mitigate it in some other way. There are a lot of unique items that are best-in-slot. In our case, we’ve used only rare boots, a belt, and an amulet.

Mandatory Uniques:

• Crest of Desire
• Inpulsa’s Broken Heart
• Strom Secret (2x)

Recommended Uniques:

• Agnerod South
• The Annihilating Light
• Storm’s Gift
• Algor Mortis
• Voice of the Storm

Crest of Desire is where you should put your Herald of Thunder to squeeze all the potential this single skill gem has to offer. This is the build defining helmet that boosts the DPS of socketed skills significantly.

Agnerod South pushes your required strength to 158. But it’s the best weapon for this build due to the increase in maximum lightning resistance, level of lightning spell skill gems, lightning damage, lightning penetration, and intelligence.

The Annihilating Light triples your damage. It is the most powerful staff that introduces a few problems that you’ll need to solve - Reduced Elemental Resistances and no extra Lightning Resistance.

Inpulsa’s Broken Heart as a body armor that grants shock immunity, maximum life, increased damage and the effect of shock and makes enemies explode.

Storm's Gift is a nice boost to Lightning Resistance and Energy Shield. It inflicts shock on more enemies, making them good for clearing maps. The Synthesized Implicit mods could be really useful, too.

If you can consistently create chilling areas via skills like Cold Snap, you can use Algor Mortis gloves. These perform better against bosses.

You will rarely deal any Critical Strikes. Combined with a huge range of lightning damage hits, it makes the "Lightning Damage With Non-Critical Strikes Is Lucky" modifier very good. You can get it on the Voice of the Storm amulet.

Storm Secret rings are absolutely required although you will take a lot of lightning damage as hits. It enables your build to have few CWDT setups with a reliable cast frequency. Your Herald of Thunder is vastly improved, striking more often, and creating more storms.

Lone Messenger is a keystone from Calamitous Visions that disables your auras but enhances the effect of the one single Herald you're using.

Put three of the Grand Spectrum jewels in your sockets for 135% increased elemental damage. With the Doryani version of Glorious Vanity, you can transform a keystone into Corrupted Soul for more Energy Shield.

There shouldn't be any issues with getting the required attributes. You don't need to look for Spell Damage, Critical Strikes, or Cast Speed on your gear. Seek Lightning Damage and Penetration instead. Your defense will consist of both maximum life and Energy Shield. Focus on maximum life, it's more beneficial. Get some life in Mana Recoup and have an item with one free suffix, so you can beast craft Aspect of the Spider.

Elemental Resistances, Maximum Life and Increased Movement Speed are the most important mods to look for on your boots. Maximum Life and Elemental Resistances will be the stats that you should aim to get a lot on a belt.

Crusader's Amulet has a prefix, which makes you penetrate lightning resistance. Look for this specific mod. The rest of the mods should be maximum life and Elemental Resistances.

Recommended Annoitment:

• Persistence
• Circle of Life
• Melding
• Whispers of Doom

Recommended Affixes:

• Increased Maximum of Life
• Increased Maximum Energy Shield
• Increased Elemental/Lightning Damage
• Strenth or Dexterity

There are a lot of affixes to choose from on jewels. Aim for maximum life and lightning damage. Corrupting one might result in an implicit mod that makes you immune to Corrupted Blood.

Recommended Affixes:

• 1 Added Passive Skill is Doryani's Lesson (Mandatory)
• 1 Added Passive Skill is Supercharge (Just One, High Priority)
• 1 Added Passive Skill is Storm Drinker
• 1 Added Passive Skill is Scintillating Idea
• 1 Added Passive Skill is Prismatic Heart
• 1 Added Passive Skill is Widerspread Destruction

Large cluster Jewels with the base for increased lightning damage with eight passive skills and two or three of the listed notables should be implemented. You should use two or three of these. Doryani's Lesson is mandatory here. Supercharge is great, too.

Recommended Affixes:

• 1 Added Passive Skill is Dark Messenger
• 1 Added Passive Skill is Empowered Envoy

4 medium cluster jewels with two specific notables listed here are the best way to enhance the build.

With properly adjusted Elemental Resistances, the Wise Oak offers a lot of lightning penetration, which is impactful.

Rumi's Concoction is a great defensive flask that boosts your chance to block spells and attacks.

Bottled Faith increases your Critical Strike Chance that is somewhat irrelevant here and increases damage taken by enemies on Consecrated ground. Don't prioritize it.

Progenesis is the most effective defensive flask in the game, especially when combined with Life Recoup. However, it is very expensive.

Use one magic life flask that would stop bleeding and replenish your life instantly. And depending on your preferences, a Silver or Basalt Flask for more mobility or armor.

Also Read: How Exactly The New Skill Gem System Is Going To Work In Path Of Exile 2?

Skill Gems And Sockets

The build has three fully automated CWDT setups as you're constantly hitting yourself. You can keep them at a low level if you have good Mana recovery.

The first one is a Storm Brand great for applying shock quickly to enemies all around you and triggering Herald of Thunder's Storms.

Conductivity is the recommended curse for this build. It reduces the monster's resistance to lightning damage.

Storm Brand & Conductivity are supported by:

• Cast When Damage Taken
• Hextouch (Optional)
• Culling Strike
• Energy Leech

Link these with Hextouch so that you can increase the gem level of the curse. If your Storm Brand has a high level, link it with energy leech support and abandon Hextouch; if not, just Culling Strike support.

The second setup hosts many various gems. Cold Snap will allow you to generate frenzy charges by killing enemies in the chilling areas it creates.

It's also good with Alger Mortis gloves. Purifying Flame creates Consecrated ground by releasing a wave of fire and physical damage that after its initial burst creates another one. Get a Divergent version for increased damage.

Wave of Conviction applies lightning exposure to enemies hit, reducing their lightning resistance.

Cold Snap (level 1), Purifying Flame (level 1) & Wave of Conviction (level 1) are supported by:

• Innervate
• Life Leech
• Cast When Damage Taken (level 1)

You could implement life leech support for a small portion of the damage to be leached back to you.

The third setup has three spells:

Immortal Call briefly decreases the damage you take from physical and elemental hits.

Phase Run grants you phasing, which increases your movement speed for a duration.

Shock Nova spell deals lightning damage around you, shocking many enemies at once. This skill has a second stage that is similar to the first one.

Shock Nova (level 1), Phase Run (level 1) & Immortal Call (level 1) are supported by:

• Cast When Damage Taken (level 2)

Since you can't use any auras and have a lot of unreserved Mana, Arctic Armour is one of the best spells you can have. It chills attackers and grants you freeze immunity.

Flame Dash allows you to dash to the targeted location, leaving a path of burning ground behind. It will also shock. So, use it to initiate the loop after entering a map.

Flame Dash are supported by:

• Acane Surge (low level)
• Second Wind

Keep Arcane Surge at a low level to make the Arcane Surge buff trigger after a single Flame Dash cast it grants more cast speed and Mana regeneration.

Second Wind support stores an additional charge for Flame Dash and makes it more expensive.

Herald of Thunder is the most important skill gem. Make sure it has high quality and level, which can be done by corrupting it. It adds lightning damage to your skills and creates storms, which are the main source of DPS in this build.