Genshin Impact OST - Adepti & Liyue Qixing Fight vs. Overlord of the Vortex (Osial) Theme

From the final bossfight while you defend the Guizhong ballistas while Osial (the hydro hydra) rains airstrikes down on you while you fend off Fatui agents.. All credits and copyrights go to Mihoyo.