Anti-Lord English secret weapon.
It was obvious, how could we not find out before?
So if the Felt is made to emulate a game of Pool.
The members are the different balls.
Doc Scratch the Cue ball and English himself the Billiards Stick.
We all know this from a long time ago. So what is the only thing that can affect the stick in a game of Pool?
THE ULTIMATE WEAPON.