Likely around the same time as Jewelry. Jewelry are going to increase stats or skill levels or something, so has a bit more involved. Don't even think they have the Outfits that are in game (Blacksmith and Chef) even working. Might be just me and because my 88q BS Outfit just isn't good enough or something to give me bonuses.
Drones what I've read on jewllery making it will be the only thing, besides 100 in a skill, that will give a luck bonus. They may work in more effects later though.
It does not matter who is the strongest fighter, just the last one standing.