Sayu Guide and Best Builds for Genshin Impact

Strengths

• Heals and deals damage simultaneously with her Elemental Burst.
• Great mobility with her E skill (rolling dash).
• Strong support for both healing and Swirl reactions.
• Passive ability provides extra healing when triggering Swirl.

Weaknesses

• Before C6 can be tricky to distribute both ATK and EM required.
• Limited damage compared to other Anemo Characters.
• Needs high Energy Recharge for frequent Burst uptime.

Sayu's best build is as a support as she will supply the team with a good amount of healing while also absorbing and swirling elements around.

Support Sayu's build uses Favonius Greatsword as her BiS weapon. You will need to build some CRIT rate for it however. This weapon will help her Burst each rotation. Wolf's Gravestone is the second best choice as it will give the whole team a small buff. Katsuragikiri Nagamasa is the best F2P weapon as you can craft it, and it provides Sayu with decent ER.

For this build, Sayu's best Artifact set is Viridescent Venerer, whether you play her on field or off field. It allows both elemental RES shred and increases Sayu's Swirl.

Sayu requires a lot of Energy Recharge for this build: you will want to aim for at least 200 %+ if you want to use her Burst every rotation. Her C4 will lower it to 160-180 %. Favonius or another Anemo character will lower it more. Before C6, you will have to balance her ATK and EM: her heal scales on ATK, and her swirl damage on EM. After C6, her heal will also scale with EM, making it easier for you.

You do not have to level Sayu's Normal Attack.

Sayu's burst Yoohoo Art: Mujina Flurry as a support build is what you will want to use the most. You will deal Anemo damage to nearby enemies, and heal your allies.

Sayu is not very hard to play. Your role with her will be to swap her in once you applied some elements so she swirl and spread it, you can then use your Burst to heal if needed or deal extra Swirl damage.

The optimal rotation for Support Sayu is:

1. Swap on her after applying one or multiple other Elements to the enemies
2. Use Yoohoo Art: Fuuin Dash to Swirl
3. Use Yoohoo Art: Mujina Flurry to heal or deal additional DMG
4. Swap back to a DPS

As an Anemo support, Sayu is extremely flexible and can fit in a various amount of teams.

Sayu can be a good support for Xiao as she can provide him with a decent healing, and she can also serve as his personal battery. Fischl will serve as an off-field DPS while also applying Electro. Ororon can be used instead of Fischl if you don't have her. Zhongli will provide his shield to the team. Lan Yan is another viable option to shield in this team if you do not have Zhongli.

The other team options presented in the table on top revolve around Sayu buffing elemental reactions with her swirl ability, while also acting as a healer. This works for reactions such as Melt, Freeze, or Aggravate.

A more Mono-Elemental team is another option for Sayu. Mono Pyro is the best for this set-up as Sayu will be able to swirl Pyro to all surrounding enemies. You will want to pick a powerful Main DPS such as Arlecchino and add additional DPS with Xiangling for example, as well as another buffer such as Bennett.