[After initial surprise Archer leans into the touch and closes his eyes for a moment. The pain still lingers, but the touch is grounding him, giving him hope that things will turn right. Caster's hand is warm and gentle, metal ring he always wears on his finger almost as warm as his touch is. He trusts his partner to find some way to stop the process or find someone who can.]

The process starts whenever I get a glimpse of any melee weapon. I can see it in the same way I see things whenever I use my ability, analyze it by sight, and commit all the data to my memory. The copy isn't a perfect replica due to the fact it's impossible to gain as much information by sight alone. Besides, my skill works only when I can see the weapon itself; blueprints, drawings or photos are of no use.

[He pauses, stealing a glance at his hand as he turns it palm upwards.]

Whenever I beging projecting, or tracing it, I follow seven steps. First I judge the concept of its creation and the shape it takes. Next comes hypothesizing of its internal structure, as well as its composition. Afterwards comes duplicating the materials needed for the weapon, and then crafting the weapon by imitating the skill of its making. The next one is symphatizing with the experience of its growth, followed by reproducing the accumulated years. Last but not least is excelling its manufacturing process.

[Soft exhale is followed by a small frown, as Archer considers something.]

I think there may be a similar spell used in Magecraft, one used to materialize objects. The difference is that such objects slowly fades away.