This article is a comprehensive guide to Hellfire in Duet Night Abyss (DNA), covering their rating, recommended builds (weapons and demon wedges), skills, introns, and more.
All Character ListsTable od Contents
Hellfire Character Overview

Hellfire Information
| Element | Pyro |
|---|---|
| Role | DPS,Skill DMG,Max HP |
| Weapon (Melee) | Greatsword |
| Weapon (Ranged) | Grenade Launcher |
Hellfire Tier / Rating
| Playable | Combat Partner |
|---|---|
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Pyro Tank with Self-Healing
Hellfire brings a unique blend of tankiness and self‑sustain. Her greatsword strikes and Pyro‑based AoE abilities allow her to hold the front‑line and deal solid damage, while her passive and ultimate enable self-healing and taunt for crowd control.
Ideal for Endurance Encounters
With her large HP pool and self-healing mechanic, she can endure boss phases or wave‑based encounters. Her taunt and AoE abilities help stabilize chaotic fights, giving her strong value in prolonged PvE or boss‑rush scenarios.
Best Character Tier ListHellfire Stats
*Skill increases are not included.
| Lv. 1 | Lv. MAX(80) | |
|---|---|---|
| ATK | 15 | 188.28 |
| HP | 183 | 3,446 |
| Shield | 0 | 0 |
| DEF | 345 | 345 |
| Max Sanity | 120 | 120 |
| Skill DMG | 100% | 100% |
| Skill Range | 100% | 100% |
| Skill Duration | 118% | 133% |
| Skill Efficiency | 100% | 100% |
| Morale | 0% | 0% |
| Resolve | 0% | 0% |
How to Unlock or Get Hellfire?
Unlock Through Nocturnal Echoes: The Warden of the Inferno

Currently, the only way to get Hellfire's Secret Letter is by clearing Nocturnal Echoes: The Warden of the Inferno at Lv. 50. The Secret Letter is a guaranteed drop, but the amount you get will be random.
Only 5 Completion Rewards Per Week
Nocturnal Echoes have a limit to how many times you can get rewards from them. Each week, you can only get 5 chances of getting their rewards. This limit is shared out across all the Nocturnal Echoes.
Hellfire Best Weapon
Hellfire's Best Melee Weapon
| Best Melee Weapon |
|---|
Undying Oneiros |
Hellfire is a Pyro character that taunts enemies into attacking her and dealing damage via her Skill that scales using her Max HP. Undying Oneiros is the best weapon for boosting her HP. Note that Punitive Inferno is a viable alternative, but it has a more demanding triggering condition compared to Undying Oneiros.
Hellfire's Best Ranged Weapon
| Best Range Weapon |
|---|
Destructo |
Increasing Hellfire's Skill Range means she'll be able to hit farther away enemies that attack her. Destructo is a weapon she's proficient on so she can deal additional damage when using Ranged weapon.
Hellfire's Best Partner Weapon
| Best Range Weapon |
|---|
Undying Oneiros |
Undying Oneiros works better than Destructo for Combat Partner Hellfire. For Hellfire, HP is king, and Undying Oneiros allows her Skill to deal considerable damage as she approaches enemies.
Hellfire Best Demon Wedge
Loadout Details
| Character Demon Wedge Set | ||||
|---|---|---|---|---|
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As mentioned previously, Hellfire wants to stack as much Max HP as possible, while evenly spreading her remaining stats. With
| Melee Weapon Demon Wedge Set | |||
|---|---|---|---|
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Undying Oneiros serves as a stat stick for additional HP. To maximize Hellfire's HP bonuses, you want to trigger its additional effects which boost her HP even more. For this reason, we've included two wedges with
| Range Weapon Demon Wedge Set | |||
|---|---|---|---|
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![]() | ![]() | ![]() FactionHunt | Free Slot |
Destructo functions as a stat stick
that provides Hellfire with a signficant boost to her Skill Range. As such, we've selected a general wedge build simply to maximize the damage of the weapon.
Best Build for Hellfire
| Character Demon Wedge | ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
|---|---|
| Melee Weapon | ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ▼ Tap for Demon Wedge Build |
| Range Weapon | Not important for Hellfire ▼ Tap for Demon Wedge Build |
Focus on HP and Skill Range
Hellfire's abilities scale off her max HP, meaning the more HP she has, the more damage her abilities deal. With high enough HP, Hellfire can comfortably run through a stage and clear it, so long as she has her [Raging Inferno] active.
While the additional skill range is not a necessity, it's certainly a significant QoL (quality of life) upgrade that makes playing Hellfire much more comfortable.
Hellfire's Skill
Skill Values shown is at level 1.
| Raging Inferno Type:Buff | Sanity Cost: 75 |
|---|---|
Raging Inferno
Enters [Retribution] state.
Retribution
Deals Pyro Damage to nearby enemies once every 2s. If Hellfire takes damage during [Retribution], extends the state duration and deals [Puncture Retribution] Pyro Damage to nearby enemies once every 2s.
| Cage of Despair Type:Buff | Sanity Cost: 50 DMG: 67.0% Max HP+110 DMG Radius: 20.0m Taunt Duation: 5.0s |
|---|
Cage of Despair
Deals Pyro Damage to surrounding enemies and Taunts them.
| Retributive Resolve Type:Passive | Max HP Boost: 39.0% HP Recovery per second: 0.3% Max HP |
|---|
Retributive Resolve
Increases Max HP and continuously restores HP.
Hellfire's Intron
| I1 | Increases damage dealt to enemies within a 6-metre radius around Hellfire by 30.0%. |
|---|---|
| I2 | Increase the HP recovery granted by [Retributive Resolve] to 0.4%. |
| I3 | [Raging Inferno] Level +2; [Retributive Resolve] Level +1. |
| I4 | Decreases the interval of dealing [Puncture Retribution] Pyro Damage to 1.4s. |
| I5 | [Cage of Despair] Level +2; [Retributive Resolve] Level +1. |
| I6 | For every 5 Sanity-consuming skill uses by nearby allies, Hellfire automatically unleashes [Cage of Despair]. Can trigger once every 5s. |
Profile
| Gender | Female |
|---|---|
| Birthplace | Hyperborean Empire |
| Birthday | August 18 |
| Allegiance | Imperial Military Prison |
Hellfire's Trats
| Geologist | Skilled in mining |
|---|---|
| Impression: Morality | Upholds justice and intergrity. |
| Rapt Attention | Handles tasks with heightened efficiency, reducing completion time. |