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Duet Night Abyss

How to Beat Sibylle

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How to Beat Sibylle Boss Guide Banner Duet Night Abyss
Sibylle is a Story Boss and Weekly Boss (Nocturnal Echoes) in Duet Night Abyss (DNA). See how to beat Sibylle, their attack patterns, location, and available reward drops in their weekly boss challenge!

Sibylle Guides
Best Build Boss Guide

Sibylle Boss Info Overview

Story Boss Info
Nocturnal Echoes
Sibylle Boss Information
Sibylle Boss Fight Info
Level Quest
9 Whispers of the Sands
Nocturnal Echoes Information
Sibylle Boss Fight Nocturnal Echoes.png
Level Pre-requisite Quest
30+ Can I Keep It Quest
Whispers of the Sands

Sibylle Nocturnal Echoes Drops

Nocturnal Boss Drops
・Secret Letter: Tabethe
・Secret Letter: Shackle of Lonewolf
・Secret Letter: Sacrosanct Chorus
・Secret Letter: Stellar Finality
・Secret Letter: Blast Artistry
・Ring of Severed Fear

You can also get the chance to obtain Secret Letters, items that unlock characters and weapons, by beating Sibylle as a weekly boss in Nocturnal Echoes!

Players can only claim Nocturnal Echoes rewards 5 times in a week and the chances reset every week on Monday 05:00 AM (UTC+8).

Sibylle Boss Location

Find Sibylle in Purgatorio Island

Sibylle is the only boss fight in Purgatorio Island. Players can go to the upper area where they first fought Sibylle, and challenge her again to gain Nocturnal Echoes Boss Drops.

Players have to complete the Prologue Chapter and Noctoyager Chapter 1 to challenge Sibylle's Nocturnal Echoes version. Both story and nocturnal boss locations are the same for Sibylle.

How to Beat Sibylle

Story Boss Strategy

Do Ranged Attacks then Strike

When Sibylle is using moves that require her to cast an attack, players can use that opening to shoot and strike while she is idle. The goal is to break her stance bar.

Take Advantage of Weakness Exposed

Once players fully break the stance bar of Sibylle, they can take advantage of the Weakness Exposed window to deal heavy damage while the boss is down.

Use Combo Attacks and Ultimate Skill

As Sibylle does attacks with a longer cast, players could then time their Ultimate Skill and chain it with a combo of attacks to increase damage output.

Sibylle Attack Patterns

Nefarious Storm Attack


Sibylle has a clear indicator when casting Nefarious Storm. While charging up, she waves her arm and a collective of small portals appear. These will unleash dark orbs that deal damage to the player especially if they are too near Sibylle.
How to Dodge It might be difficult to avoid all of the dark orbs so it is generally recommended to get some distance or go behind Sibylle right before the attack is fully casted.

Lightning Dome Attack


Sibylle casts a large dome of lightning around her. If the player gets caught inside, they will take damage.
How to Dodge Using a ranged attack is recommended. She also teleports from time to time so it is best to move away when she readies this attack.

Rings of Lightning Strike Attack


Sibylle has another move that requires casting but has a large AoE. There will be rings of lightning reaching outward.
How to Dodge Players can manage to avoid this by going past the first ring and deal close combat damage to Sibylle. Another option is to use ranged attacks then strike.

Ranged Lightning Strike Attack


Sibylle has a lightning strike that will continue to move in the same direction until it dispels.
How to Dodge Players can easily steer clear of this attack as long as they are not within close range.

Wide Slash Attack


When Sibylle is not casting a move, she can also do wide range slashes when a player is up close.
How to Dodge Players must avoid these attacks with speed and distance since she can do a quick few slashes in one go.

Duet Night Abyss Related Guides

Duet Night Abyss Bosses

List of All Bosses

Main Story and Nocturnal Echoes Bosses

Sibylle Icon Sibylle Crystalophile Icon Crystalophile Eclosioner Icon Eclosioner
The Warden of the Inferno Icon The Warden of the Inferno Beast From the Snowfield Icon Beast From the Snowfield

Nocturnal Echoes and Weekly Bosses Guide

Available Story Mini-Bosses

Psyche Icon Psyche Battle Maven Icon Battle Maven The Sinner Icon The Sinner
Subject 47 Icon Subject 47 The Devourer Icon The Devourer

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