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PoE 2 Build

[0.5.5] Hellfire Gemling - Flameblast / Oil Grenade - League Start to Endgame

Updated on Aug 31, 2026
Aug 31, 2026

Build Overview

This build revolves around Flameblast and the Gemling Legionnaire quality stacking for Advanced Thaumaturgy. To fit to the "Hellfire" theme of the build we using Flameblast because the alt quality of this gem is giving you more Magnitude of Ignite per stage. Currently we getting 620% more Magnitude of Ignite. Which is a really huge multiplier. For clear we using Oil Grenade this will spread the ignite from our Flameblast making the build 1 button after you casted.

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Where I can find you?


Click Favorite to save this guide for all updates & changes. If you have any questions, join me Twitch and ask me if you have any questions!

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Flameblast Explained


This is our main clear skill and it is very usefull for single target as well. The alt quality if giving you 62% Magnitude of Ignite per stage. The Flameblast has 10 stages for the total 620% more ignite damage. This is why we playing as Gemling Legionnaire

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Oil Grenade explained

This is our clear skill. When you igniting an enemy this skill will getting ignited as well and it will "remember" your ignite damage for the rest of the map if you keeping up. You need to use this often otherwise you will need to cast again Flameblast.

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DO NOT GET ADDED FIRE DAMAGE ANYWHERE!

If you have any sorta added fire damage to attacks or extra fire damage your Oil Grenade will getting bricked and it will not spread the ignite!

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Charge regulation explained

This will give us more energy shield and attack speed for our Oil Grenade so it will feel better while clearing. For this skill you need generate charges in somehow.

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How to generate charges

Thaumaturgic Generator will generate every charges. Every 5 second you gain a charge this depends on your attribute requirement for the skill gems. We trying to balance around DEX and STR gems making more likely to gain Endurance and Frenzy charges. Also to make better uptime we using a Megalomaniac jewel with The Fabled Stag. Our charge druation now 21 second!

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Alt quality effects

The most important quality effect you can read below or in game pressing ALT


Flameblast - Magnitude of Ignite per stage

Elemental Weakness - Faster curse activation

Charge Regulation - increase daamge per charges

Wolf Pack - Minion attack speed (this whatever)

Oil Grenade - Bettter exposure

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Quality order

You need 4 gemcutter prism to quality up a gem to 20%. Your priority list in order:

  1. Flameblast
  2. Oil Grenade
  3. Elemental Weakness

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Essence of Virtue Explained


Essence of Virtue is granting you maximum life, Armour, ES and EV and recovery. The more gem you have socketed the more effect you getting. Correspondingly to the gem colour. If you following my links you should have: 9 Red. 9 green and 9 blue. This means you getting 18% maximum life, 45% armour-evasion and energy shield. 45% life and mana recovery.

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Gem Studded explained


Gem Studded You getting bonuses based on support gem colours. If one of the is dominant you will get a bonus effect.

  • Dexterity gems (green): 40% less movement speed penalty while using skills
  • Intelligence gems (blue): 30 less mana cost
  • Strenght gems (red): You cannot take critical damage from eneimes

If we making all colours equal then you getting ALL the bonuses. Just follow my links and you will not have any problem. In game you can check by pressing "G" and "support gem capacity" There is the total sum of the support gems.

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Flying enemies

For some weird reason this is works like in IRL. Your burning ground will not deal damage to them. Counter againist it: Tornado. Press it when there are flying enemies. It will pick up the burning ground effect and will kill anything.

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Leveling

The leveling is very simple. You will use from level 1 Permafrost Bolts and Fragmentation Rounds

This simple combo will carry you till you can swap. You only need to use Fragmentation Rounds aganist bosses and rares. Your Permafrost Bolts will kill anything else

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Path of Buildings

High end ES version: PoB

Strengths and Weaknesses

  • 1 button
  • Screen wide clear
  • Good single target damage
  • Tonky
  • Not only your enemies will burn. This build is super GPU heavy
  • Do not run maps with ignited ground

Build Variants

Equipment

item
2
item
3
item
1
item
6
item
5
item
4
item
2
item
7
item
8
item
9
item
item
item
item
item
Jewels
item
item
item
Equipment Priority
+10

Skill Gems

Support Gem Requirements:

Str 55

Dex 50

Int 50

1

Grenade

Level 20

supportelementalfocusplayer
supportrapidattacksplayertwo
supportdefyplayertwo
2

Virtuous Barrier

Level 20

3

Consecrate

Level 18

4

Elemental Weakness

Level 19

Set 1

supportcursedgroundplayer
supportcurseeffectplayer
5

Flameblast

Level 20

Set 1

supportxophspyreplayer
supportdeadlyignitesplayertwo
supportignitedurationplayertwo
supportconcentratedareaplayer
supportconsideredcastingplayer
6

Artillery Ballista

Level 19

supportshockplayer
supportdeadlypoisonplayertwo
supportmultishotplayertwo
supportelementalarmamentplayertwo
7

Gas Grenade

Level 19

supportrageforgedplayertwo
supportelementalarmamentplayertwo
8

Charge Regulation

Level 15

9

Cluster Grenade

Level 19

supportdeliberationplayer
supportelementalfocusplayer
supportefficiencyplayertwo
10

Oil Grenade

Level 19

Set 2

supportmultishotplayertwo
supportmagnifiedareaplayertwo
supportshortfuseplayer
supportencroachinggroundplayer
supportnovaprojectilesplayer
11

Flash Grenade

Level 19

supportchainplayerthree
supportcooldownrecoveryplayertwo
supportelementalarmamentplayertwo
supportelementalfocusplayer
12

Convalescence

Level 17

supportclarityplayertwo
supportcooldownrecoveryplayertwo
prolongeddurationsupportplayertwo
Gem Priority
+31

Set 1: Flameblast Elemental Weakness

Set 2: Oil Grenade

Passive Tree

main:
123
123
set 1:
20
20
set 2:
20
20

Quest Rewards

Check which quests you’ve completed on your character
ClearfellBeira of the Rotten Pack
+10% to Cold Resistance
Hunting GroundsThe Crowbell
Grants Two Weapon Set Passive Skill Points
FreythornThe King in the Mists
+30 to Spirit
Ogham FarmlandsUna's Hut
Grants Two Weapon Set Passive Skill Points
Ogham ManorCandlemass, the Living Rite
+20 to maximum Life
KethKabala, Constrictor Queen
Grants Two Weapon Set Passive Skill Points
Valley of the TitansMedallion
30% increased Charm Charges gained
+1 Charm Slot
DesharFinal Letter
Grants Two Weapon Set Passive Skill Points
The Spires of DesharSisters of Garukhan
+10% to Lightning Resistance
Jungle RuinsMighty Silverfist
Grants Two Weapon Set Passive Skill Points
The Venom CryptsVenom Draught
25% increased Stun Threshold
Jiquani's MachinariumBlackjaw, the Remnant
+10% to Fire Resistance
The Azak BogIgnagduk, the Bog Witch
+30 to Spirit
The Molten VaultThe Molten Vault
Reforging Bench
AggoratBlood Sacrifice
Grants Two Weapon Set Passive Skill Points
Journey's EndCaptain Hartlin
Two Weapon Set Passive Skill Points
Skill Gem(Lv 13)
Delirium Drop
Whakapanu IslandGreat White One
+30% increased Global Armour, Evasion and Energy Shield
Eye of HinekoraNavali's Rest
5% increased Maximum Mana
Halls of the DeadYama The White
Grants Two Weapon Set Passive Skill Points
Halls of the DeadTawhoa's Test
+5% to Lightning Resistance
Abandoned PrisonGoddess of Justice
30% increased Mana Recovery from Flasks
Halls of the DeadTasalio's Test
+5% to Cold Resistance
Halls of the DeadNgamahu's Test
+5% to Fire Resistance
Halls of the DeadTribal Medicine
+30% increased Global Armour, Evasion and Energy Shield
WolvenholdOswin, the Dread Warden
Grants Two Weapon Set Passive Skill Points
The Khari CrossingAkthi and Anundr
Two Weapon Set Passive Skill Points
The Khari CrossingMolten Shrine
5% increased Maximum Life
QimahTabana's Pillar
3% increased Movement Speed
Kriar VillageLythara, the Wayward Spear
+40 to Spirit
Howling CavesThe Abominable Yeti
Grants Two Weapon Set Passive Skill Points

How it Plays

Clear

  1. Use Oil Grenade on the enemy
  2. Cast Flameblast on enemies till reaching 10 stages then realese it
  3. Use Oil Grenade till the map ends. This will "remember" your ignite for the rest of the map

Single Target

  1. Cast Elemental Weakness
  2. Cast Flameblast till 10 stages
  3. Use Oil Grenade


Leveling only

  1. Permafrost Bolts for clear and single target. On single target you need to freeze the boss with this
  2. Fragmentation Rounds is boss only to consume the freeze and deal massive damage

Video Guide

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