Board Thread:Off Topic/@comment-26397825-20160528034745/@comment-26397825-20160530134018

So they have to not only hit the person with their needles to copy the semblance, they then have to learn how to use said semblance on the fly, which is the main part of that comment I wanted you to take note of. That makes it more than useless, as learning to use a semblance on the fly just doesn't work. They're still forcing their aura to move in a way it has never moved before, and do things that they don't understand themself.

Velvets weapon has thus far only copied physical objects that she has taken photos of beforehand; nothing semblance related. Until it is shown in the show we assume that it doesn't copy semblance constructs. If or when they show that her weapon can copy semblance constructs, then by all means. Go for your life. Until then, the answer is no, her weapon doesn't copy semblance constructs. It is the simplest answer.