Isohgin

Isohgin (イソーギン Isōgin) is one of the "nightmare-duo" from Eternal that are said to be the best hunters there. He is the tall one of the two and mostly just repeats what Yadohkan says. Together, the two of them transform into a weird creature looking like a leg-less human creature on a cancer. His last episode was episode 38 along with his partner.