Galok

A gaunt, spectral-faced figure that seemed part man, part beast, and part fire itself. It can control fire and is invulnerable to arrows as they are disintegrated when they touch it. It stood half again as tall as a man, with a grinning mouth full of red fangs, eyes ringed by whirls of crackling flame, and long fluttering hair that floated about its head like wisps of gray smoke.

Cassius saw a galok emerging during the battle in the Brookbury Basin