Zalescria dressed as Charun, a psychopomp. In this role, her job would be to make sure that gladiators are dead and to remove the bodies from the arena
I’ll acknowledge that I’ve only come across this “Charun” (in the context of gladiators) only a couple of times, so i don’t know if this was an actual job in the arena or not. Either way, I thought it was cool and that it fits with Zaza’s character.