Every champion and good black belt has at least 1 (most times more) submission that they are known for!
A submission that they can get on anyone!
One that people know is coming, they see it, but they can't stop it!
For me this submission is the guillotine.
Some of the best guys in the world that I have tapped out, it was in a guillotine choke!
I happen to know more about this submission than any other submission in the world.