Nyx

Class Info
Nyx started as a fifth level eldritch knight, and by the end of season one became seventh level. Nyx usually only acts on his behalf, and isn't aligned with any of the factions in Coisira except for his small cult. Nyx was a minor god in the pantheon and the god of night; however a transmutation wizard trying to harness his power, transmuted Nyx into a sabre making him a sentient magic item. Nyx, in season one of Nost took over the PC Vendrick Orwyns.

Physical Description
Nyx being a sabre, takes the appearance of his user, in this case it was Vendrick Orwyns, his appearance does change at the end of season one, when he absorbs the hive mind.