How to beat Siren, the first Axon? Clair Obscur: Expedition 33

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Dans l’Act IIAfter beating Renoir, you need to get to the Painter, but to do so you have to destroy the dome that's blocking your way. The Curator can help you, but you'll need to beat two Axons and bring back their energy.

If you would like to learn more about the bosss from Clair Obscur: Expedition 33, you can follow this link:

In this article, discover our best tips for defeating the first Axon: Mermaid !

Where is Sirène?

On a island au Nord-Est de la carte, vous trouverez le temple de Sirène. C’est une very large island with a huge temple beat on it.

  • North de l’open-world (le cercle rouge sur la carte)
clair obscur siren boss location
Siren location on IGN Clair Obscur map: Expedition 33 ©️Alexandre for Alucare.fr

Dirigez-vous vers l’Ouest pour affronter le second Axon et par la suite accéder à la Peintresse.

What are Siren's combat mechanics?

To face Siren, you'll need to beat Glissando. The main mechanic of the zone's bosss is the charm, which confuses your characters and causes them to tap their allies.

Explanatory video in French by Alucare, ideal complement to the page. View video (you can use youtube's automatic translation)

Here's what you need to know about Mermaid :

  • The Painter attaque toute l’équipe by making 2 shots with Glissandos.
  • A ballerina can put the charm on a character.
clair obscur sirene charme
L’attaque Charme de Sirène Clair Obscur: Expedition 33 ©️Alexandre pour Alucare.fr
  • When it falls under 50% of PV, 5 ballerinas come to help Sirène and attack your entire team avec chacune un élément. L’attaque est une séquence de 5 coups d’affilés.
  • Siren seduces a character and performs a Gradient attack.
clair obscur sirene gradient
Clair Obscur Siren Gradient Attack: Expedition 33 ©️Alexandre for Alucare.fr
  • Under 25% of PVGlissando comes to Sirène's aid. They attaquent toute l’équipe with a avoidable jumping blow then a blast from the Siren. They repeat this 2 times puis Sirène fait une dernière attaque lente sur l’équipe.
clair obscur sirene attack jump
Glissando jump attack Clair Obscur: Expedition 33 ©️Alexandre for Alucare.fr

Tips for beating Sirène?

Ce que nous vous conseillons pour faciliter votre combat contre ce boss c’est de jouer avec Maelle et/ou Sciel et/ou Verso en DPS ainsi que Lune en Soutien.

  • It's necessary fight the Weaver to obtain the picto Anti-Charm and equip your 3 characters with the picto.
  • Équiper des armes d’Ice element at Maelle and Verso to use the boss weakness avec leurs compétences qui prennent l’élément de l’arme.
  • Sciel fait de gros dégâts d’Obscure element on the boss.
  • Use the competence Lueur de Soin of Moon to remove the malus that kills your characters after 3 laps.

If you're curious about how to play a particular character, you can follow our character guides :

What are the rewards of defeating Siren?

Victory against this Axon gives you a weapon for Sciel: Tisseron, ainsi qu’un picto Energy - Tower and 3 Resplendent Chroma Catalysts.

clair obscur sirene awards
Clair Obscur Siren Awards: Expedition 33 ©️Alexandre for Alucare.fr

Si vous souhaitez en savoir plus sur le jeu Clair Obscur: Expedition 33 et sur les autres boss du jeu, n’hésitez pas à consulter nos différents articles :

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Clair obscur: Expedition 33

Our rating: 4.8/5

Released on : 24 April 2025

Developed by : Sandfall Interactive

Edited by : Kepler Interactive

Available on : PC, PlayStation, Xbox

Genres : RPG, Action