Void Stones

Description
Purple and black gems, each with a glowing red light emanating from within them.

History
Have been used to weaken superhuman beings across the cosmos.

Powers
Void Stones have the ability to nullify any powers or traits that make a creature mightier than a human or some corresponding earthbound animal, depending on the entity in question. The effect and range of each stone varies greatly. Weaker stones are capable of taking away the powers of enhanced humans within a ten foot radius, but can barely affect more powerful individuals. The most powerful of them can have radius's of several miles, gradually weakening more powerful individuals to greater degrees the closer the stone is. The more powerful the stone, the more difficult it is to destroy.