Hm, I think… that items like that will have no chance of dropping at the easiest difficulty, 1/60 for mid difficulty and 1/30 for hardest difficulty. No never mind that, was just random thoughts.
Well, it sure does add an interesting dynamic to this game along with the nice flavour text, hehe.
That’s a very broad question! I’m afraid you’ll have to wait and see.
What other types of passive bonuses are there? 
Probably not doable right now without creating some confusing tooltips and trickery.
“For example, if there is an item that grants you a new active skill and this item is also a part of the set. So more parts of the set you wear, more powerful the skill becomes.”
That’s a pretty cool idea actually.
Thanks for the update, love it! =)
I just realized something that wasn’t there. A level requirement, just 145 cunning. Thought someone might want to know.
Spam the cunning people!
the level requirement will probably be added later, as the item is been tested for level one chars, or very low levels, so nothing is finalised
hellish toy 
I really like 