Genshin Impact: Xiao character summary and gameplay tips
Xiao can be a viable main DPS in your squad. His burst followed by the plunging attack spam can be ridiculously deadly, but it’s going to take a lot of effort for him to reach his full potential.
It’s also worth mentioning that, as an Anemo main DPS character, Xiao can’t proc elemental combos such as Melt or Vaporize. Plus, you’re bound to have issues in the Spiral Abyss when Xiao’s fighting since he can’t break shields (you need others to do that for you). When you already have comps with Keqing, Diluc, Klee, Tartaglia, and Ganyu carrying the day, it’s hard to find a niche for Xiao’s expertise.
If you really want to choose Xiao, you can pair him with a shield-generator like Zhongli or Albedo since he’ll be out on the field often. Likewise, try to pop a healer’s ability before Xiao uses his ult. Healing fields from Bennett, Diona, and Jean, as well as the abilities of Barbara and Qiqi are integral. Since Xiao’s burst (or “14 seconds of fame”) ends abruptly when he gets swapped out, he’ll need to get topped up in case he takes a few hits.
Lastly, Xiao’s elemental skill doesn’t even generate particles while his ult is active, completely shafting his burst recharge. You’ll probably need an “Anemo Battery” character. Someone like the Anemo Traveler, Sucrose, or Venti can use their abilities. Then, just quickly switch back to Xiao so the floating particles go to him.