Crystalocution

An ancient martial art in which opponents are destroyed via striking their metal fracture points. Among its known practitioners are Arcee and Coldsnap.

Trivia
It is likely that Crystalocution is a nod to "Hokuto Shinken," the martial art used by the protagonist of the popular '80s anime Fist of The North Star, wherein opponents are dispatched by striking their pressure points. They then tend to explode in a rather bloody fashion.