ill go a bit lazy with this one that thing you see there is not sentient, that thing is a experiment using the recourses or body of a dead god or powerful entity. it got its name because the one that made ir were conducting experiments in secret since the body of a dead god is a very valuable thing. some locals of the area have accidentally spotted it thus thus a rumor started about a creepy creature lurking in the dead of night thus they named it nightwalker (Nihtgenġa)

organic and mechanical in nature rather weak of its size around 7 ft not very agile despite its slim appearance

Thanks