Sanhua is a powerful 4-star character that you get for free in Wuthering Waves. She is a strong sub-DPS and since you get her for free, you should definitely build her. Here is the best Sanhua build in Wuthering Waves.
THE CRAZIEST F2P BUFFER! Best Sanhua Build + Guide (Echoes & Teams) – Wuthering Waves
Sanhua is a quick-swap damage dealer with buffing capabilities in Wuthering Waves. She is a Glacio sub-DPS that places ice constructs on the ground that deal damage when destroyed.
Sanhua is a Glacio sword wielder who excels at dealing burst damage with her Ice builds. Her main role is sub-DPS, but she can also function as a main carry. She is an attack-scaling unit, meaning swords with high base attack and Crit stats are her best in slot. Since swords are a common weapon in Wuthering Waves, Sanhua has a lot of options for both free-to-play players and spenders. Here are the best swords for Sanhua.
Emerald of Genesis is her best in slot because it offers all the valuable stats she needs. It has a high base attack and a utility passive that regenerates energy. The best thing about this sword is that you can get it for free once you reach Union level 45. If you are using her best sword on another character, Sword#18 is another solid option. While this weapon has a lower base attack, it offers a lot of utility with its passive and you can craft it for free.