Ring of spellbattle

A ring of spellbattle (also spelled ring of spell-battle) is a gold ring inset with silver spheres, and communicates to its wearer any spellcasting that occurs within 60 feet (20m). If the wearer knows spellcraft, it is possible that he or she can identify the spell, even if he or she cannot see it at all, and once per day, the ring can be commanded to cast dispel magic as a counterspell, or change the target of the spell, but only to new targets within 60 feet (20m), otherwise the redirection fails. The ring is worth around 70,000 gold pieces.