Xiao - Genshin Impact
Xiao is a playable Anemo character in Genshin Impact who uses polearms. He is an adeptus and the only remaining member of the Yakshas, illuminated beasts responsible for eliminating plagues, curses, miasmas, monsters, etc. manifested by fallen gods' hatred from the Archon War. Due to this task, the negative karmic energy from killing these entities have taken a toll on Xiao for centuries and it was this same karmic debt that caused his Yaksha allies to succumb to madness and despair.