Crafting and Professions Questions

Hello everyone. I have a few questions about crafting and professions.


My first question is about the attack speed tier on a crafted weapon. Is there any way to influence an item so that it comes with fast attack speed, or is it completely random when crafting an item?


My second question is about powders. I am playing on the Craftsman challenge, and I would like to know if there is any way to use powders during item crafting. When I tried to craft with them, the effect was not applied to the equipment, and on the items it shows 0% effectiveness as an ingredient, so I’m honestly not very sure how this works.


Any help would be greatly appreciated!