Should You Fight Tisseur in Clair Obscur: Expedition 33?

Thinking of attacking Tisseur in Expedition 33? Here’s what you gain from the fight, how to reach the boss, and key tips to win—including countering Sirene’s Charm.
Should You Fight Tisseur in Clair Obscur: Expedition 33?
Tisseur, fittingly named “The Weaver,” is a non-hostile Nevron boss you’ll find on Sirene’s Island in Expedition 33. When you encounter it, Tisseur is just quietly weaving away, completely absorbed in its work. Like other peaceful Nevrons such as Jar and Hexga, you get the choice: leave it be, or attack.
So… should you fight it?
Yes—Here’s Why Tisseur is Worth Fighting
Despite its peaceful demeanor, it’s highly recommended to take on Tisseur. Defeating this boss rewards you with the Anti-Charm Pictos—a crucial item for surviving the Sirene boss fight. Sirene has a nasty habit of summoning Widow Ballets to Charm your team and will also try to seduce your characters herself.
Getting Charmed means your expeditioners will skip turns or even attack their own teammates—not great. The Anti-Charm Pictos can prevent that chaos entirely.
When the game gives you the prompt:
“The Nevron does not seem hostile. It sews tirelessly, engrossed in its work. Attack anyway?”
Choose Yes if you want to prepare for one of the game’s trickier encounters.

Tisseur Rewards
On top of the Anti-Charm Pictos, beating Tisseur also gets you:
- Tissenum
- Resplendent Chroma Catalyst
- Recoat

All valuable items for progression and upgrades.
Tisseur Boss Strategy – Weaknesses & Abilities
Tisseur isn’t the most brutal boss in the game, but it still demands attention. Here’s what you need to know going in:
- Weak to: Fire & Light
- Resistant to: Ice, Dark, Earth

Recommended Pictos & Moves
To maximize your damage and survivability, equip:
- Augmented Counter I / III
- Energising Jump
- Healing Counter
Use Fire or Light weapons to boost your counterattacks, especially after dodging or jumping through swipes.
Tisseur’s Prompts & Moves
Prompt | Attack | Tips |
Curses the Expedition | Puts a death curse on your team (8 turns till KO) | Cleanse or revive if needed. Countdown is shown above heads. |
Performs a combo | Two quick hits, two swipes, then needle shots | Jump to dodge swipes. Time your dodges. |
Smashes its target | Single smash clap | Easy to parry. Watch for sudden movement. |
Swiping combo | Three swipes, then a smash | Use jump dodge during swipes. |
Weaves some Glissandos | AoE ground slam | Glissando charges up—parry just before the slam. |

Where to Find Tisseur in Expedition 33
Finding Tisseur takes a bit of navigating through Sirene’s island. Here’s a quick step-by-step:
- Start at the Dancing Classes Rest Point and ride the elevator up.
- In the room with three doors, go through the right door (the others are dead ends with loot and a Petank).
- Pass through the room with floating clothes and cross to the next door.
- After the second elevator ride, go left up the cloth ball to reach Tisseur’s area.
- Optional: Head right instead if you need to rest—there’s a secret bathroom area with a hidden passage behind a mirror, leading to a rest flag.
- Optional: Head right instead if you need to rest—there’s a secret bathroom area with a hidden passage behind a mirror, leading to a rest flag.
- Grapple across the gap and pass through the right passage to reach the Sewing Atelier.
- Rest at the point nearby, then head forward. Tisseur is just past the opening.
- Bonus Tip: There’s a hidden Mime with cosmetic rewards before the flag if you go the other way.
- Bonus Tip: There’s a hidden Mime with cosmetic rewards before the flag if you go the other way.
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