Mace Windu... One of my favorite characters in SW. Always on the edge between light and dark.The answer is his ability to find weak points in "unbreakable" defences and use them to win. I believe.
they were called shatterpoints... through the force he could foresee the weakness of his opponents and how to defeat them.his shatterpoint ability was what led him to his unique purple crystal, while he was a young boy in training. ~Arrius
The correct answer is " Morichro ", a technique which enabled the user to rapidly slow down the bodily functions of its target to the point of death.
It's the Order Emperor Palpatine gave to kill all Jedi.