Talk:Mercury Black/@comment-97.87.179.196-20151022013748/@comment-4010415-20151022022052

Well, if light blue Dust is kinetic energy like we presume it to be, it's possible that someone could make a makeshift "lightsaber" with it... maybe?

Alternatively, we know lasers are a thing in RWBY, thanks to Penny. Make it out of whatever those lasers are made from.