Some items are r105 Artifact, what does that mean? eg: is it because theyre from official places shops etc?

Artifact is a bit of a misc catagory. It includes items from the token shop, Millionaire Center, Blackheart hollow and pretty much any shop that either have a endless stock (go outside,Dara's Darlings,Fine Fabrics), or stock stuff only buyable by non seasonal non cash shop related special currency (the before mentioned token shop and Blackheart hollow). It is a little finniky however because the Forum shop items for example are game prize rarity. [edit] sorry for all the pings

From the FAQ

105 - Special Shop Items: items found in blackheart hollow, token shop, millionaire center, quest shop, recycle shop, etc

The "artifact" part doesn't really make them more special, it's just a category like any of the other rarities.

Also one of the rarities that can't be fragged.

Aahh thank you guys, must read more of new faq... :0)