Not something we advertise on items, AFAIK - and one of the objects you're talking about is area-explore so I snipped that. Let's keep area explore off the table.
As an IMM, my not-so-generous contribution is that shields that do stuff like that are noticed by experimentation or by a cool conjurer using contact other planes.
As this thread is at its root just a "What items have special hidden progs?" I'm going to lock it since I'd rather that not be an open discussion here.
Sorry for being a party pooper, but I wish you the best of luck in finding funky cool shields with special properties!
