Artifacts are items created by various supernatural processes, most commonly the use of Integration. Only specific items go here, if something is a type of item which can be created (such as Soul nets) it goes under Magic System.
“Warrenhold is a castle created by Stasya Orlov and currently owned by Hector. Warrenhold is...Warrenhold
“The Magic Shield is a special shield created by Haqq, and was given to Hector by Haqq's reaper...Magic Shield
“The combat suit was a device created by Abbas Saqqaf and Haqq Najir. Physically, the armor is...Combat Suit