Genshin Impact
Dirge of Coppelia, strategies, weak points, and achievements
Defeat Icewind Suite: Duality, Side A.
Icewind Suite is a unique Boss in the way that you need to talk to a nearby character to choose which version of the Boss fight, each giving different rewards; Dirge of Coppelia gives Vayuda Turquoise (Anemo) and Artificed Spare Clockwork Component — Coppelia.
Icewind Suite Location
Choose "Try Dirge of Coppelia"
Weak Point
Icewind Suite does not have a specific weakness, but you can interrupt them. In Dirge of Coppelia, you need to use Pneuma (Gold Light) three times during the Climax (dancing in the center) to interrupt them and stun them for a few seconds.
Strategy
During the Icewind Suite Boss battle, their attacks will do Cryo and Anemo Damage regardless of version and will have high resistance to these Elements; Dirge of Coppelia focuses more on Cryo attacks.
If you bring Pneuma characters, you can stun them whenever they start the Climax, a phase where they dance in the center of the stage, which happens 30 seconds after starting the fight and again after the previous Climax ends.
Achievements
Funerary Storm
Use a Pneuma attack to weaken the whirlwind Coppelia creates during the performance's Climax.
You can get this achievement normally; just bring a Pneuma character to the fight.
Shackle Me, That I Might Willingly Be Destroyed
During the Climax of "Dirge of Coppelia," use Coppelius's attack to make all the Dirge's whirlwinds undergo Elemental Conversion.
This one you have to do deliberately, during the Climax, get close to the Anemo whirlwinds and stay opposite of Coppelius; with some luck, you can infuse two of them with one attack.
The Power of Science is Staggering!
Complete one form of the "Icewind Suite" challenge in Co-Op Mode.