The Dead Lands of Athas
This +1 heavy shield is made of the chitinous backplate of a Mastyrial Scorpion, but is absolute black in color and seems to absorb any light that shines upon it. When held, wielders claim to hear a faint whispering, but are never quite able to make out what it says. The shield better acclimates its wielder to the cold, granting a +2 bonus to saves involving the cold energy type. Unfortunately, they now suffer a -2 penalty to saves verses abysmal heat and fire.