Jean vs Sayu

With Jean

Jean's ability to instantly heal the entire party to full health with her Elemental Burst makes her one of the most efficient characters for stacking Furina's Fanfare. This immediate HP fluctuation maximizes the team-wide DMG bonus very early in the rotation. She also provides Viridescent Venerer shred to increase the damage of Furina's summoned Salon members.

With Sayu

Sayu provides the team-wide healing necessary to stack Furina's Fanfare, though her healing is more gradual and tied to her Yoohoo Art: Mujina Madness field. While slower than Jean, she maintains the party's health against Furina's constant drain while simultaneously triggering Viridescent Venerer resistance shred. Her mobility can also be useful for repositioning while Furina's summons are active.

With Jean

The 'Sunfire' interaction occurs when Jean's Dandelion Breeze field overlaps with Bennett's Fantastic Voyage, causing rapid self-pyro applications to be swirled onto enemies. This results in incredibly fast Pyro application and shield breaking while providing massive ATK buffs and healing. This duo is a staple for teams requiring high-frequency Pyro reactions or heavy Elemental Mastery scaling.

With Sayu

Sayu benefits from Bennett's massive ATK buff provided by Fantastic Voyage, which directly increases her healing throughput and personal damage. Bennett also provides the Pyro Resonance and extra energy particles needed to help Sayu maintain her high-cost burst. Together, they offer a surplus of healing that makes the team nearly immortal in high-pressure content.