A knight! Twisted by a body of boiling Steam. He had an armour made out of organ pipes and was otherwise known to be quite the terrifying creature.
Sadly, he might have been fast and might have been deadly but a glasscannon often shatters when smashed with enough of an impact. He would have eventually returned with his divine portfolio leaking to the Abyss, where it would have allowed him to reform.
Urist snatched that up and in doing so permanently killed the Steam Knight.