Board Thread:Off Topic/@comment-25396609-20151012154515/@comment-25396609-20151014200308

Alright, this is not so much a weapon as a battery pack for dust, I recently created a character who uses similar, keeps several reinforced canisters of dust on a belt to fuel 'spells'

The style would be extremely similar to Penny, albeit with disposable weapons rather than reusables. Not impossible for RWBY, we already have characters that use aspects of it (multiple swords controlled by a single user, weapons forged and re-shaped from dust)