Utilize Xin Zhao's strong early game with an aggressive playstyle. While Conqueror bruiser is standard, Hail of Blades burst or even a niche AP build can be powerful depending on the situation.
Focus on early to mid-game ganks and skirmishes to snowball your lead. He can be particularly strong against champions like Lee Sin or Vladimir.
In late-game teamfights, use your ultimate to either peel for your carries or isolate key enemy threats. Maintaining an early advantage is crucial to prevent falling off.