Well i noticed karl put some random properties into some of the weapons etc, so here is what i think each item should have of properties and this should be the standard, and like xen you could add properties by propping in a prop shrine.
8%Base mp
8%Base hp
x % Mp steal
x % Hp Steal
Stupify
Helmets would have chance of Night vision properties, and you would have to use the spell "luminarum" which means light or lamp if you did not have night vision helmet.
please add those which i cant remember from xen etc, there was about 7.
Also like some blades i think f.ex
Sword of Fire(which is being drawn soon) should have a chance to blast the target with fire.
Ice bladescimitar should have a chance to slow down the enemy or freeze them in one spot.
just some ideas to start your brainstorming