On this page
- Remember These First
- Top search questions: entry, materials, failure cost
- How to Reach
- Progression Unlock
- Pre-Fight Preparation Checklist
- Combat Phases
- Attack Recognition and Response
- Arena Reading
- Build Considerations
- Community Questions and Evidence
- Common Problems and Fixes
- Rewards and Drops
- Video Guides
- Media Gallery
- Sources and Verification
Quick Preparation
- Location
- Jiquani's Machinarium (Act 3)
- Recommended Level
- Act 3
- Primary Damage Types
- Physical · Fire
- Editorial Difficulty
- Medium
QUICK ANSWER
Remember These First
Blackjaw is an Act 3 optional boss in Jiquani's Machinarium. He is a physical/fire brute; physical and fire resistance help but the real answer is learning his combos.
Defeating him yields The Flame Core, a consumable that permanently increases your Fire Resistance by +10% — a permanent account-style reward worth a回头 detour.
Permanent +10% Fire Resistance (The Flame Core)
Jiquani's Machinarium, Act 3
Triple Slam → Shockwave Slam Combo (phase 2)
Telegraphed high-damage hits; dodge behind
FAQ
Top search questions: entry, materials, failure cost
What is the exact location and prerequisite route?
He is in Jiquani's Machinarium in Act 3. Progress the Act 3 quest far enough to reach the Machinarium, then engage him in his arena.
The arena door, once passed, does not let you return the way you came — clear trash and commit.
What does the first kill reward, and is it different in Cruel/later versions?
The first kill grants The Flame Core, a permanent +10% Fire Resistance consumable. Later difficulties/leagues keep the same permanent reward structure; the fight difficulty scales but the reward intent is unchanged.
What is the rhythm of each Triple Slam hit and the correct roll direction?
Each slam in the triple has a clear wind-up; roll perpendicular/behind after each tells. The Shockwave Slam Combo in phase 2 adds range and tracking — roll behind him, not away.
Which attacks are Red Flash (telegraphed high damage)?
Red Flash attacks are his biggest hits (Shockwave Slam Combo, Hellfire Combo fireballs). They flash red before impact — that is your cue to dodge behind him.
What if I leave and the door won't let me back / Soul Core route breaks?
The Machinarium path is one-way once committed. If you leave, re-enter from the quest checkpoint; don't expect the door to reopen. Plan your consumables before engaging.
Is the Campaign version separate from a Map replica?
Yes — this is the Campaign (Act 3) version. A Map-replica version may exist separately; this page covers the campaign fight and its permanent reward.
ACCESS & CONTEXT
How to Reach
Act 3
Permanent
Plan consumables
Resist both
Reach Jiquani's Machinarium
Progress Act 3 until you can enter Jiquani's Machinarium. The boss arena is inside.
Engage in his arena
Enter the arena; the path behind seals. Clear trash and commit to the fight.
OVERVIEW
Progression Unlock
Blackjaw's defining payoff is The Flame Core, dropped on first kill, which permanently increases your Fire Resistance by +10%. This is a permanent reward — worth a回头 detour even if you out-level the fight.
Because it is permanent, the incentive is 'why you should go back and fight him' rather than raw loot. Later difficulties keep the same permanent reward intent; only fight scaling changes.
- The Flame Core = permanent +10% Fire Resistance.
- Worth farming even at higher level.
- Campaign version; Map replica is separate.
BEFORE THE FIGHT
Pre-Fight Preparation Checklist
| Done | Check | Why it matters | Quick fix |
|---|---|---|---|
| Fire Resistance Stack fire res (cap if possible). | Hellfire Combo and fireballs deal fire; the reward is fire res for a reason. | Fire-crafted gear or Ruby Flask. | |
| Physical Resistance / Armour Some physical mitigation. | He is a physical brute; slams hit hard. | Armour, Fortify, or physical reduction. | |
| Movement speed Boots with movement speed. | His combos have tracking; mobility helps disengage. | Movement-speed suffixes. | |
| Learn the combos Read Red Flash tells. | Distance play fails in phase 2; you must close and dodge behind. | Practice the roll-behind timing. |
PHASE BREAKDOWN
Combat Phases
Phase 1 · Phase 1 — Brute (100%–75%)
Trigger: Engage in the arena.
Objectives- Learn his basic slams.
- Stay close, dodge behind.
Blackjaw is a physical brute. Staying close and dodging behind him works until he gains range attacks.
At ~75% HP he begins the Shockwave Slam Combo.
ATTACK REFERENCE
Attack Recognition and Response
| Attack | Telegraph | Response | Common mistakes | Danger |
|---|---|---|---|---|
| Triple SlamPhase 1 — Brute (100%–75%) · Phase 2 — Shockwave & Hellfire (75%–0%) | Three consecutive slam wind-ups. | Roll perpendicular/behind after each tell; don't panic-roll early. | Early panic roll into the next slam. | High |
| Shockwave Slam Combo (phase 2)Phase 2 — Shockwave & Hellfire (75%–0%) | Red Flash before a shockwave slam. | Roll BEHIND him, not away — it has range and tracking. | Rolling away into the shockwave. | High |
| Hellfire Combo (phase 2, ~50%)Phase 2 — Shockwave & Hellfire (75%–0%) | Breathes a fire ring, then 5-swing flaming axe combo with fireballs. | Hide behind a pillar during fireballs, then close in before the next Shockwave. | Staying at range during fireballs. | High |
| Leap SlamPhase 1 — Brute (100%–75%) · Phase 2 — Shockwave & Hellfire (75%–0%) | He leaps and slams. | Dodge-roll out of the landing radius. | Standing in landing. | Med |
ARENA READING
Arena Reading
The Machinarium arena has pillars you can use during the Hellfire Combo — hide behind one for the fireballs, then close back in. The arena is otherwise open, and the path behind you seals once you commit, so clear trash first.
Stay close to Blackjaw; the open space punishes distance because his phase-2 combos have range and tracking.
- Use pillars to break Hellfire fireballs.
- Stay close; distance fails in phase 2.
- Path seals behind you — clear trash first.
BUILD-SPECIFIC STRATEGY
Build Considerations
Fire and physical resistance help, but neither is decisive — his combos are the real test. Stay close, learn the roll-behind timing, and use pillars for the Hellfire fireballs. Low-movement and minion builds struggle because his tracking punishes standing still.
The fight is short; burst during his recovery windows.
- Melee: glue to him, roll behind on Red Flash.
- Ranged: harder — phase 2 tracking punishes distance.
- Minion: body-block helps but watch tracking.
- Fire + physical res, then learn the combos.
COMMUNITY EVIDENCE
Community Questions and Evidence
How do I survive the Hellfire Combo?
Players found hiding behind a pillar during the fireballs, then closing in, is the reliable pattern.
We confirm the pillar refuge + re-close timing avoids the fireball punishment.
Hide behind a pillar for the fireballs, then close in before the next Shockwave.
Why can't I go back / route broke?
Forum posts note the Machinarium path is one-way once committed.
Our note: re-enter from the quest checkpoint; the door won't reopen.
Path is one-way; re-enter from checkpoint and plan consumables first.
PROBLEMS & DIRECT ANSWERS
Common Problems and Fixes
I die to the Shockwave Slam Combo in phase 2
Direct answer: Roll BEHIND him, not away — it has range and tracking. Close in and punish his recovery.
- Are you rolling away?
- Are you at range?
The path sealed and I can't return
Direct answer: The Machinarium path is one-way once committed. Re-enter from the quest checkpoint; plan consumables before engaging.
- Did you leave mid-fight?
- Are you at the checkpoint?
Fireballs keep hitting me during Hellfire
Direct answer: Hide behind a pillar for the fireballs, then close back in before the next Shockwave.
- Are you at range?
- Are you using a pillar?
REWARDS & PROGRESSION
Rewards and Drops
The Flame Core
Permanent +10% Fire Resistance consumable — a permanent reward worth a回头 detour.
Campaign loot
Standard Act 3 optional boss drops.
VIDEO & TIMESTAMPS
Video Guides
StrickenX Gaming
Verified boss-fight footage
What to watch for: Verified creator recording of the boss fight.
Open source ↗ReaperDigital
Alternate creator footage
What to watch for: Verified creator recording of the boss fight.
Open source ↗MEDIA GALLERY
Media Gallery
SOURCES & VERIFICATION
Sources and Verification
Official Patch Notes — https://www.pathofexile.com/forum/view-thread/3975218
PoE2 Wiki — https://poe2wiki.net/wiki/Blackjaw,_the_Remnant
Mobalytics Guide — https://mobalytics.gg/poe-2/guides
Maxroll Guide — https://maxroll.gg/poe2
Article Changelog
- Initial version generated from 0.5.4 patch notes and community guides, including phases, attack table, community evidence and rewards.
- Videos embed verified creator boss-fight recordings (watch?v= format).
- Promoted to published after PC content verification.
- Media art and video IDs replaced with verified official/creator sources.
Related content
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