What are Fury Claw and Choas Claw?

[vmxa]

I was reading a guide about an assassin that used two items. They were call Fury Claw and Choas Claw, but I could not find any such items on any of the forums. I am not even sure if they are Katars or what, but I would imagine they are class specific. I did not see any set items for them either. Anyone know a link that has them?

[vmxa]

Never mind, they did not mention it was a Runeword.