I've read that somehow we can now go to an NPC aboard our ships to craft Mk XII gear. I have no idea how to do this. I mean, I read something about a "powered artifact" and a quest line that involves either "childrens toys" or is it "negotiate delivery of rare commodities". I'm not really sure.
Could someone please walk me through this? What is the first step to take? What items do I need to start off with? That kind of thing.
This is done through the Doff system (duty officer). There is an assignment that occasionally appear when you are in the Cardassian areas (Beta Urs, Alpha Trianguli, Zeta andromeda, and their associated star clusters). The assignment is called "negotiate delivery of rare commodity" as you have said. Once you complete it, you will get an alien artifact. You then do some shipboard assignment to make it into a powered artifact and then a console.