Lynette vs Sayu

With Lynette

Lynette has low synergy with Furina because she lacks the team-wide healing necessary to efficiently stack Fanfare and counter Furina's HP drain. While she can provide Viridescent Venerer shred, she requires a dedicated healer in the team to make this pairing viable. At C6, she can act as an on-field driver for Furina's buffs, but still remains healer-dependent.

With Sayu

Sayu is a high-synergy partner for Furina because her Elemental Burst provides the team-wide healing needed to maximize Fanfare stacks and offset HP drain. She also triggers Viridescent Venerer shred for Furina's Hydro damage while remaining mobile on the battlefield. This duo provides a solid foundation of sustain and utility for Furina-led teams.

With Lynette

Lynette provides Xiangling with essential Viridescent Venerer shred and some off-field Anemo damage, helping to maximize Xiangling's Pyro DPS. Her burst can also provide minor grouping and a small ATK buff to the team. While not as powerful as Kazuha, Lynette is a functional Anemo support that helps Xiangling maintain high damage output.

With Sayu

Sayu provides Xiangling's teams with both Viridescent Venerer shred and consistent healing, which are key for sustaining the team during Xiangling's burst. Her ability to keep the party healthy allows for more aggressive play, while her Anemo application helps maintain elemental reactions. She is a versatile support that offers both offensive and defensive utility.