Board Thread:General Discussion/@comment-24116544-20131101010026/@comment-10390252-20131119092743

Rudy Rose wrote:

Ditto with Dust cryst- what? It's not like Diablo, just slapping a Dust crystal onto something doesn't make it work like magic. Ditto the charging thing. Yet that is exactly what we've seen Weiss doing with Myrtenaster. All Ruby has to do is channel her aura through the weapon. Possibly a new skill for her but not impossible to learn.

The shield thing is only speculative, I'll agree but I think it is a logical outgrowth of the possibility that one variant of dust generates (or negates) movement force.