Board Thread:Episode Discussion/@comment-4141313-20190119003858/@comment-27144409-20190210224357

Yes, but that doesn't directly cause the spinning, and we didn't see the weapon bend, and even if we did, a weapon bending is usually a bad thing to force.

the sickles were puled to each other because they shared selective gravitational fields. My guess is that you make such fields by carefully splitting a crystal.