Summary Here are the guidelines to have the best Xueyi build in HSR: Best Honkai Star Rail Xueyi Build: Light Cones Xueyi’s best-in-slot light cone is On the Fall of an Aeon, which boosts her ATK and grants bonus DMG after Weakness Breaks. Other good options include: Best Relics and Planar Ornaments for Xueyi Xueyi…