Board Thread:Off Topic/@comment-27425734-20170826213348/@comment-26397825-20171124124809

If you want the element to be added to the head of the arrow having it on the string isn't going to be much help. All that's likely to do is set your fletching on fire.

Instead, how about having the arrow rest have dust infused in it, that she can activate and combine with the head. After all, every time we've seen Dust be used in weapons, the Dust has to actually be at the place you want to affect, not at the other end of it and somehow magically affecting the tip.