Xueyi is one of the judges of the Ten Gentlemen Commission in Honkai: Star Rai. In addition to her duties on the Xianzhou Luofu ship, she is also incredibly powerful.
DON'T BUILD HER WRONG! Best Xueyi Guide & Build [Best Relics, Teams & Light Cones] – Star Rail
Xueyi is a 4-star Quantum DPS in Honkai, and as a follower of the Destruction path, she deals a ton of damage. If you’re ready to smash and destroy your opponents, this is the best Xueyi build in Honkai.
Xueyi is a Quantum hyper carry and like other damage dealers, she requires a lot of investment. Unlike other DPS, Xueyi's main damage comes from Break Effect, so she has a different playstyle. She focuses on dealing massive Quantum Break Effect damage by reducing the opponent's Toughness. This means that Xueyi needs proper Light Cones, Relics, and Planar Ornaments, as well as maxed Traces to do well.
As a Quantum Damage Dealer following the path of Destruction, Xueyi only uses Destruction Light Cones. Since you want her to deal a lot of damage, you'll want to equip her with Light Cones that provide offensive stats, and thankfully most of her options are free-to-play. Here are the best Light Cones for Xueyi in Honkai: