Lunatic has been floating around the Cosmic Fandom for a while & is a lot of fun.
The Claw is something completely new. It quickly became a custom at playtests to yell "THE CLAW!" in a low pitched voice whenever it's power went off. But then that is how our group tends to act anyway.
Like this? http://www.youtube.com/watch?v=W9t5ZqeHcYk#t=0m4s