I am starting to think that a lot of the items I am seeing are a response to jerk GMs abusing something against their players and the item is a response to such abuse.
So many things to make entire methods of doing something completely impossible AND very harmful.
e.g., No teleporting of any kind, and if you try it you go crazy and die!
I wonder how many times the big bad in the campaign just ported out when the PCs found a way to beat him for that item to be made.
