Talk:Ken Kaneki/@comment-88.111.75.186-20151123222451/@comment-27204325-20151123224315

I think the hand kagune thing has to do with his mental stability right now in the sense that he's mentally stable enough to control his powers to a larger extent. They formed in a far more primitive way in the fight with Arima out of desperation, but the ability doesn't depend on him being in mortal danger to use, that only unlocked the capability.

It's more like his fight with Nishio: His kagune gets sharper when his mind clears up.