Omukade - 大百足
This rare and illusive mountain roaming yokai, often resides in dank humid abysses beyond the sight of rational beings. When finally coaxed from these hellish pits, they become a threat to every being in an area, more akin to natural disasters. So vulgar and great is the threat posed, even dragons are not safe from a venomous mauling, with an exoskeleton un-pierceable by known weapons. There are some whispers of a possible poison humans regularly produce that can kill them but accounts are unclear as to what it is. Fewer tales still, tell of heroes of ages past taking down these reviled beings in single combat and being granted boundless boons. It is finally told that these monstrous leviathans have no known size limit but can presumably grow, devour and produce their acrid venom without end.