I walked into Version 3.1's Enigma of the Labyrinth expecting a cute little puzzle, and instead the Infernal Revenant tried to turn me into a crispy critter. Fantastic. As of 2026, this fiery headache remains one of the flashiest boss encounters in Zenless Zone Zero, and if you are anything like me, you will want a plan before you go poking the walking bonfire.
Who Is the Infernal Revenant, and Why Is It So Smug?
The Infernal Revenant is a Boss enemy in Zenless Zone Zero, and it currently hangs out in the brand-new game mode introduced in Version 3.1: Enigma of the Labyrinth. It is not strolling around some random street corner waiting for you to trip over it. No, this dramatic pile of flames and bad intentions shows up during The Hematite Mystery quest inside that mode. Very exclusive. Very spicy. Very rude.
Like any sensible boss, the Infernal Revenant has Attribute affinities, which is the fancy way of saying it has things it hates and things it shrugs off. Before you march in with your favorite team and a prayer, check its weaknesses and resistances, then formulate your party accordingly. I learned this the hard way after bringing a team that had the structural integrity of a wet paper bag. The fight went about as well as you would expect.
| Quick Fact | Details |
|---|---|
| Enemy type | Boss |
| Game | Zenless Zone Zero |
| Mode | Enigma of the Labyrinth |
| Quest | The Hematite Mystery |
| Version introduced | 3.1 |
| Main reward | Reverb Vessels |
How to Unlock the Infernal Revenant (Spoiler: It Is Not a Secret Menu Item)
Unlocking this boss is refreshingly straightforward, which is nice because my sense of direction is not. You need to play the new game mode introduced in Version 3.1, Enigma of the Labyrinth, and progress until you reach The Hematite Mystery quest. That is where the Infernal Revenant makes its grand, smoky entrance. Defeat it there, and you have officially survived the encounter.
Since the Infernal Revenant is thus far exclusive to Enigma of the Labyrinth, you will not find it loitering in some other corner of the game. It is a mode-specific boss, which honestly makes the whole thing feel a bit like a VIP club. A VIP club where the bouncer is on fire and the dress code is 'bring your best dodge timing.'
Rewards: Reverb Vessels Are Basically Loot Pinatas
Here is the part that makes my inner loot goblin sit up and pay attention. Defeating the Infernal Revenant yields Reverb Vessels. These shiny containers hold valuables, gear, and materials used to upgrade the Porcelloy Hub and craft new equipment. In other words, this boss is not just a roadblock; it is a vending machine with anger issues.
Each time you defeat the Infernal Revenant, the contents of the Reverb Vessel it drops in each run are random. Random loot is both exciting and terrifying, like opening a mystery box while standing on a trapdoor. The good news is that the vessel will likely contain high-value items, so your suffering has a decent chance of paying off. I have opened enough of these to know that sometimes you get exactly what you need, and sometimes the universe hands you a polite pat on the head. Either way, keep farming. The Porcelloy Hub is not going to upgrade itself.
My Extremely Scientific Pre-Fight Checklist
I am not saying I am a professional, but I have definitely been knocked around by this boss enough to compile a list. Here is my totally serious, definitely not panicked checklist:
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🔥 Check the Infernal Revenant's Attribute affinities before building your team. Weaknesses are your friends. Resistances are your enemies.
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🛡️ Bring a party that can survive more than one sneeze. Sustain matters, even when you are trying to look cool.
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🏃 Learn the telegraphs. The boss has a lot of flashy movement, and 'flashy' usually means 'this will hurt in a second.'
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🎯 Do not get greedy with long attack animations. I have done this. The floor caught me.
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🎁 Remember the reward: Reverb Vessels. Every clear is another chance at gear, valuables, and upgrade materials.
Final Blaze of Glory
The Infernal Revenant is one of those bosses that feels impossible until it suddenly does not. In 2026, with Version 3.1's Enigma of the Labyrinth still giving players plenty of reasons to dive back in, this flaming menace is worth learning. It drops useful Reverb Vessels, it tests your team-building brain, and it gives you a great story to tell when your friends ask why you were screaming at your screen.
So check those resistances, pack your best gear, and stroll into The Hematite Mystery with confidence. Or, in my case, with a slightly nervous laugh and a finger hovering over the dodge button. Same energy, really. 💥