This would work similar to the Guild Wars 2 transmutation stones. (I don't know if you've ever played GW2, but...) They would transform one item's looks with another item's stats. They wouldn't be applicable to relics, but they can transmute the following to another item : Rare Effect, Paint Color, Any Stats such as Magic, Rare, etc. Only usable once, and their rarity is equivalent to that of a magic dust. That's about it. Additions are welcome, if anyone wants to add to that. Just to clarify, the original item is destroyed. By no means does this double the original item.
