Talk:Kiyan/@comment-77.254.209.41-20160713020712/@comment-88.142.161.27-20160731023620

Given that he's from the School of the Cat, and from his behavious in the entries (killing all of sigismund's crew, keeping all their heads preserved in vinegar), we can safely assume Kiyan suffered from bad mutagens (as most of the Cat witchers seem to do), which made him prone to wild behaviour, emotional instability, madness, strange abilities..

So I think that's what happened here, he's not a normal witcher, he's an unlucky cat with faulty mutagens which kept him alive.

Read the entires, he survives insane stuff, the laboratory log describes his body living on its own, despite horrible treatment, not to mention the fact that Mad Kiyan is still "alive", in the cave, after years, decades or more inside. So yea, I think he's unique.